TB1231CN ,PAL/NTSC 1CHIP (IF + VCD PROCESSOR) ICTOSHIBA TB1231CNTOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHICTB1231CNPAL/NTSC 1CHIP (|F+VCD ..
TB1239BF ,Luminance, Chroma and Synchronizing Signals Processor IC for PAL/NTSC/SECAM COLOR TVFeatures Luminance Section Built-in chroma trap filter Black stretch circuit DC restoratio ..
TB1240AN ,PAL/NTSC 1CHIP (IF + VCD RPOCESSOR) IC
TB1240AN ,PAL/NTSC 1CHIP (IF + VCD RPOCESSOR) IC
TB1245N ,VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL / NTSC / SECAM SYSTEM COLOR TVTB1245N TOSHIBA Bi-CMOS INTEGRATED CIRCUIT TENTATIVE SILICON MONOLITHIC TB1245N VIDEO, CHROMA AND ..
TB1254N ,PAL / NTSC / SECAM 1 Chip ICFEATURES IF STAGE
TB1231CN
PAL/NTSC 1CHIP (IF + VCD PROCESSOR) IC
TOSHIBA TB1231CN
TOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC
TB1l23'iliCN
PAL/NTSC 1CHIP (|F+VCD PROCESSOR) IC
TB1231CN is the IF 8 Video processing IC for PAL/NTSC
color TV system. This IC demodulates PAL/NTSC PIF, SIF
and composite video signal to R/G/B primary colors and
Audio signals. This IC can constitute Multi-Color System
by combined with TA1275AZ (SECAM Processor).
TB1231CN has the analog R/G/B interface, therefore it is
easy to make up PIP system by using this IC.
Because of the built-in video and audio switch, TB1231CN
can deal with an external channel without extra switch.
TB1231CN has an Iilc BUS interface. Various controls
(Brightness, Color etc.) can be done via two bus lines. SDlP56-P-600-1.78
Weight : 5.559 (Typ.)
961001EBA1
OTOSHIBA is continually working to improve the quality and the reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress.
It is the responsibility of the buyer, when utilizing TOSHIBA products, to observe standards of safety, and to avoid
situations in which a malfunction or failure of a TOSHIBA product could cause loss of human life, bodily injury or
damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified
operating ranges as set forth in the most recent products specifications. Also, please keep in mind the precautions
and conditions set forth in the TOSHIBA Semiconductor Reliability Handbook.
OThe products described in this document are subject to foreign exchange and foreign trade control laws.
OThe information contained herein is presented only as a guide for the applications of our products. No responsibility
is assumed by TOSHIBA CORPORATION for any infringements of intellectual propert or other rights of the third
parties which may result from its use. No license is granted by implication or ot erwise under any intellectual
property or other rights of TOSHIBA CORPORATION or others.
OThe information contained herein is subject to change without notice.
1998-05-12 1/77
TOSHIBA
TB1231CN
FEATURES
IF stage
Intercarrier Input
Double Time Constant lF AGC
Bus Controlled RF AGC
Bus Controlled PIF VCO
L-SECAM Demodulation
PLL SIF Demodulation (For 4.5--6.5MHz multi-ST, Thank coil-less)
Video stage
Built-in Video Switch (2 Inputs/1 Output)
Built-in Chroma Trap
Built-in Y Delay Line
Black Expansion
DL Type Sharpness Control
Chroma stage
1 X'tal for Multi-System (3.58MH2/4.43MHz/M-PAL/N-PAL)
Built-in 1H DL
Built-in BPF/TOF
SECAM R-Y, B-Y Input
Automatic Color System Detection
Fsc Continuous Wave Output
Text stage
Fast Blanking
Analog R/G/B Interface
Cut-Off/ Drive Adjustment
Deflection stage
Resonator less H-VCO
Dual Horizontal AFC
Horizontal Phase Control
Vertical Phase & Amplitude Control
H/V Lock Detection
Sand Castle Pulse Output (HD+VD+Gate Pulse)
No Vertical Output Mode
Audio Stage
Built-in Audio Switch (2 Inputs/l Output)
Built-in Audio Attenuator
1998-05-12 2/77
1998-05-12 3/77
BLOCK DIAGRAM
Limtéf [N
[H CORRECTION
Ext-_Vi H AFC
EXT. ‘
AU IN vco [Y in
Vcc (9V) T _ ' MI]
f I vco vco I W‘ 330T +
FM DC RIPPLE
NF FIL
H OUT SYNC
OUT FBP 5 ID
O IN ICWOUT
GAIN FM
sw DET - k
Stretch
VCO _ - _ L‘Li Cla_mp Clamp
Trap Black
W l 5 1"]: 2, Adj.
2 13 14 15' 16 17
r é E3?
AIGE1:4.4%I-IHZ
X tal Y5 Ext. Ext. RGB
DE-EMP.
AUDIO IF AFT
our vcc (9V) OUT
Filter
TB1231CN - 3
RF G ASL
AGC R IN G IN 3 IN vcc (9V) OUT OUT OUT NFB OUT .
Q Q RAMP
SCL SDAVCC (9V)
TOSHIBA
TB1231CN
1998-05-12 4/77
TERMINAL INTERFACE
53;“ PIN NAME FUNCTION INTERFACE ClRCUlT INPUT/OUTPUT
The terminaI to be
connected with
capacitor for de-
emphasis.
1500pF capacitance
1 De—Emphasis realizes 75ps/50ps de— ®— 100 751??
emphasis (Switched by
bus). The output
impedance is as follows;
PAL : 33k0 Si
At PAL
927 me ms
NTSC : SUkQ
VII Ell
TOSHIBA
The terminai for audio At AT‘I' Max.
output. 927mVrm5
FM Det. signal or the
signal inputted from Pin @ _.
55 is outputted
(Switched by bus).
And its amplitude is
controlled by bus.
2 Audio Output
TB1231CN—4
TB1231CN
1998-05-12 5/77
P'N PIN NAME
FUNCTION
INTE R FACE Cl RC U |T
lNPUT/DUTPUT
3 IF Vcc (9V)
The terminal for VCC of
PIF circuit.
Supply 9V.
In order to prevent
leakage through Vcc,
inserting traps for IF
carrier and fH is
recommended.
AFT Output/
4 SeIf-Adj.
Output
The terminaf for AFT
output and SeIf-adj.
output.
AFT voltage, half of RF
AGC Voltage. Red signai
or Biue signal is
outputted (Switched by
And AFT polarity is
turned over by bus. AFT
output impedance is
tpre aids
0.3V~4.7V
5 IF GND
The terminal for GND
of PIF circuit.
In order to realize good
PIF Det. performance
for low IF input,
separate IF GND wiring
from VCO GND (Pin 49)
as far as possible
TB1231CN - 5
TOSHIBA
TB1231CN
1998-05-12 6/77
P'” PiN NAME
FUNCTION
INTERFACE CIRCUIT
lNPUT/OUTPUT
6 IF Input
7 IF Input
The terminai for IF
signal input.
Pin 6 & Pin 7 are the
both input poles of a
differential ampiifier.
Uourr L
Typical Input
90d3,uv
8 RF AGC
The terminal for RF
AGC output (Open
Corrector Output).
To get rid of noises,
connect a capacitor to
this terminal.
@ 39.9.5:
mos mos
TB1231CN — 6
TOSHIBA
TB1231CN
1998-05-12 7/77
PIN NAME
FUNCTION
INTERFACE CIRCUIT
INPUT 1 OUTPUT
IF AGC
The terminal to be
connected with an IF
AGC filter.
Peak AGC works n sync.
tip leve! of PIF Det.
For L-SECAM, Peak AGC
works on VITS signal.
soon 0 o
APC Filter
The terminal to be
connected with APC
filter for chroma
demodulation
This terminal voltage
controls the frequency
of VCXO.
-9))ev';
skslj 7K
Al: if
TB‘] 231CN - 7
TOSHIBA
TB1231CN
PIN NAME
FUNCTION
INTERFACE CIRCUIT
INPUT/OUTPUT
X’ta I
The terminai to be
connected with a
4.433619MHZ X'tal
osciliator.
This is the standard of
both of 4.43MHZ/
3.58MH2 chroma
demodulation and
horizontal VCO.
IVIIL : HC-49/U is
recommended.
5X9: gdr L
Y/C GND
The terminal for GND
of Y/C circuit.
The terminal for
switching of Analog
RGB Mode.
On Analog RGB Mode.
the signal inputted into
Pin14, 15, 16 are
outputted from Pin18.
ANA RGB
------------- 0.7V
------------- GND
1998-05-12 8/77
TB1231CN — 8
TOSHIBA
TB1231CN
1998-05-12 9/77
PIN NAME
FUNCTiON
: INTERFACE CIRCUIT
lNPUT/OUTPUT
Analog R Input
Analog G Input
Analog 8 Input
The terminal for Analog
RGB signals input.
Input signais are
clamped by charging /
discharging coupling
capacitors, therefore
input with low
impedance.
1000 or less is
recommended.
65(9 63
Contrast fl
TV signal
R63 VCC(9V)
The terminai for VCC of
R68 circuit {TEXT circuit).
Supply 9V.
R O utp ut
The terminals for R
signals output.
Because of the Iimit of
output current, set the
resistance 2.0k0 or more
to GND.
TO AFT OUT
TB1231CN — 9
TOSHIBA
TB1231CN
P‘N PIN NAME FUNCTION INTERFACE CIRCUIT iNPUT/OUTPUT
100IRE
2.5vp.p
The terminals for G 7‘
signals output. Because
of the limit of output 199.“
1'; .. .
19 G Output current, set the
resistance 2.0km or 'E
more to GND, ‘ < 2.5V
C): GNU
TOSHIBA
O moms
The terminals for B 7? :1
signals output. Because
of the limit of output won
.——V\rv
current, set the w .
resistance 2.0m, or 10H?
more to GND. 1|?
To AFT OUT
20 8 Output
TB1231CN — 10
TB1231CN
P'N PIN NAME
FUNCTION
INTIERFACE CiRCUIT
INPUT / OUTPUT
21 ABCL
The terminai for ABL/
ACL control.
Control voltage range is
4.SV~6.DV.
ABL Gain 81 AB]. start
point are seiectable by
Uni- RGB
Color Cont.
At Open
22 V.Ra m p
The terminal to be
connected with a
capacitor to make
V.Ramp signal.
V.Ramp amplitude is
kept constant by VAGC
function.
a ;rls (5002
--'t--,
TB1231CN— ‘l'l
TOSHIBA
TB1231CN
MN Pm NAME
FUNCTION
INTERFACE CIRCUIT
INPUT/OUTPUT
23 VNFB
The terminal for lnput
of V.sawteeth signal
feedback.
The amplitude of feed
back signal is controlled
by bus.
. .......... ....‘..‘ s_ov
‘ - 4.9V
‘ '4.3V
24 V.Output
The terminal for output
of Vertical drive signal.
----NMr-a.
TB1231CN -12
TOSHIBA
TB1231CN
”N HN NAME
FUNCTION
INTERFACE CIRCUIT
INPUTIOUTPUT
25 V.AGC
The terminal to be
connected with a
capacitor for V.AGC.
V.AGC keeps V.Ramp
amplitude constant.
II __3’
‘2: :'
26 SCL
The terminal for input
of PC bus clock.
TB1231CN — 13
TOSHIBA
TB1231CN
PIN NAME
FUNCTION
INTERFACE CIRCUIT
INPUT/ OUTPUT
The terminal for input/
_output of IZC bus data.
H. Vcc (9V)
The terminai for VCC of
deflection circuit. Supply
9V. For 4V or more,
VCXO oscilates and for
5.5V or more, H OUT
signal is outputted.
Set ‘the raising time
between 4V and 5.5V
, longer than 3r'ns.
TOSHIBA
TB1231CN ~14
TB1231CN
PiN NAME
FUNCTION
INTERFACE CIRCUIT
INPUTIOUTPUT
ID ln/Output/
Fsc CW Output
The terminal for PAL!
NTSC ID output and
SECAM ID input.
By dtawing out 150pA
or morefrom this
terminal, this IC turns
to be SECAM mode.
And the terminal for
chroma sub-carrier
frequency is switched by
bus (Fixed 4.43MHz/
Auto).
® Zach
Itrf00t
PAL/NTSC
FBP Input
The terminal for FBP
Input.
(8)(8)
TB1231CN — 15
TOSHIBA
TB1231CN
5"? PIN NAME FUNCTION INTERFACE CIRCUIT leur/OUTPUT
The terminal for 2000
31 SYNC Output composite sync. output @ ‘l— J"
' -o.3v
(Open corrector output).
TOSHIBA
The terminal for output
32 H.0utput of horizontal drive ®— 5x
signal.
TB1231CN - 16
TB1231CN
PIN NAME
FUNCTTON
INTERFACE CIRCUIT
ENPUT/OUTPUT
DEF GND
The terminal for GND
of deflection circuit.
SCP Output
The terminal for Sand
Castle Puise
(VD +HD + GP) output.
@ 15310
--«-e.ov
“““ 2,25V
Video SW
Output
The terminai for Video
Switch output.
The signal inputted
into Pin 41 or 43 is
outputted through 6dB
($00!.
TB1231CN — 17
TOSHIBA
TB1231CN
P’N PIN NAME
FUNCTION
INTERFACE CIRCUIT
INPUT/OUTPUT
36 Dig. VDD (SW
The Terminal for V0]:
ofdigitai block.
Supply 5V.
37 SECAM B-Y
38 SECAM R-Y
The termina! for SECAM
B-Y/R—Y input.
Input signals are
clamped by charging/
discharging coupling
capacitors. therefore
input with low
impedance.
1000. or less is
recommended.
39 Y Input
The terminal for Y
input.
Input signal is clamped
by charging/discharging
coupling capacitor,
therefore input with
low impedance.
1000 or less is
recommended.
Typical input amplitude
is 1.0Vp.p.
(100 IRE)
TB1231CN — 13
TOSHIBA
TB1231CN
PIN NAME
FUNCTION
INTERFACE. CIRCUIT
lNPUT/OUTPUT
H. AFC
The terminal to be
connected with H.AFC
filter.
This terminal voltage
controls H. frequency.
EXT. Video/Y
The terminal for input
of composite signal or
Y signal from TV’s ext.
One of input terminal
of video SW.
This is aiso the terminal
for sync. signal input.
Input with low
impedance.
Typical input ampiitude
is 1.0vp_p.
Dig. GND
The terminal for END
of digital block.
TB1231CN - 19
TOSHIBA
TB1231CN
1998-05-12 20/77
PIN NAME
FUNCTION
INTERFACE CIRCUIT
INPUT/OUTPUT
TV Input
The terminal for input
of composite video
signal from PIF Det.
output.
One of input terminal
of video SW.
This is also the terminal
for sync. signal input.
Input with low
impedance.
Typical input ampiitude
i5 1.0Vp-p.
Black Det.
The terminal to be
connected with Black
Det. filter.
This terminal voltage
controls Black stretching
TB1231CN — 20
TOSHIBA
TB1231CN
m pm NAME FUNCTlON ENTERFACE cmcut'r INPUT/OUTPUT
The terminal for input
of chroma signal from 1m .
45 EXT. c Input TV‘s ext. jack. @ ‘ ‘ —" Burégérml'twe
Input through a W
coupling capacitor. 5;
TOSHIBA
Thetermin‘al for VCC 01
46 Y/C VCC (5V) Y/C cirCuit. — _
Supply 5V.
The terminal for output
of composite video
signal and SIF'signal 1r
detected in IF circuit
Typical video output y,
47 IF Det.0utput amplitude is 2.2Vp.p. @ 2V”
In order to reduce
920kHz beat, connect a
emitter follower to
drive audio trap and
band—pass—filter.
ttrf 005
1998-05-12 21/77
TB1231CN - 21
TB1231CN
1998-05-12 22/77
PlN NAME
FUNCTION
INTERFACE CIRCUIT
.INPUT/OUTbUT
Loop Filter
The terminal to be
connected with loop
filter for [F PLL.
This terminal vottage
controls thehfrequency
of IF VCO.
VCO GND
The terminai for GND
of VCO and SIF circuit.
In order to realize good
PIF Det. performance
for low IF. input, please
separate VCO GND
wiring from IF GND (Pin
5) as far as possible.
TB1231CN — 22
TOSHIBA
TB1231CN
1998-05-12 23/77
PIN NAME
FUNCTION
INTERFACE CIRCUIT
. INPUT/OUTPUT
The terminal to be
connected with a tank
coil for IF VCO.
IF VCO ffeqdency is
controlled by bus.
For 27pF ext.
capacitance‘ frequency
variable range is
vco Vcc(9V)
The terminal for VCC of
IF VCO and SIF.
SupplyQV.
In order to prevent
leakage through Vcc,
inserting traps for IF
carrier and fH is
recommended.
T31231CN - 23
TOSHIBA
TB1231CN
1998-05-12 24/77
”N HNNAME
FUNCHON
INTERFACE CIRCUIT
lNPUT/OUTPUT
Limiter Input/
53 H.Correction
The terminal for SIF
signal input and H.curve
correction.
By this ierminal DC
(3.SV~5.SV), it is
possible to adjust
H.phase (-‘I,us~ +1ps).
This can be used to"
correct horizontal curve
caused by change of
High-Voltage,
:1 El 33‘5“. . 5.59
F------
I tpos:
Typical
90dByV
54 Ripple Fitter
The terminal to be
connected with a
capacitor to stabilize
the performance of SIF
injection-Iock circuit.
TB1231CN - 24
TOSHIBA
TB1231CN
1998-05-12 25/77
PIN NAME
FUNCTION
INTERFACE CIRCUIT
lNPUT/OUTPUT
EXT. Audio
The terminal for input
of audio signal from
TV’s ext. jack.
Input through a
coupling capacitor.
The signal inputted into
this terminal is
outputted from Pin 2
after passing audio SW
and attenuator.
Input impedance is
Center DC
FM DC NF
The terminal for FM DC
Negative Feedback.
Connect a capacitor 'to
stabilize audio output
DC level.
DC : 5.2V
TB1 231CN — 25
TOSHIBA
TB1231CN
TOSHIBA TB1231CN
BUS CONTROL MAP
Write mode
Slave address : 88HEX
PRESET DATA
ADSDURBESS Jig D6 D5 D4 D3 D2 D1 lit, MSB LSB
00 Au Gain WPS Uni-Color (TV) 0000 0000
01 Mute Brightness (TV/TEXT) 0100 0000
02 Color 1100 0000
03 V AGC TINT 0100 0000
04 AF-G Vi Pol Sharpness 0010 0000
05 TSEFS/W C-Trap Au SW Video SW (te, ABL Gain 0000 0000
06 Color System CW SW l Sub-Contrast 0000 1000
07 R Cut Off 1000 0000
08 G Cut Off 1000 0000
09 B Cut Off 1000 0000
0A AFT Pol G Drive Gain 0100 0000
OB AFT M B Drive Gain 0100 0000
0C Vertical Position Horizontal Position 0001 0000
0D B.B. Audio MT 0000 0000
OE V-Freq RF AGC 0000 0000
OF AFC Gain Vertical Size 0010 0000
10 v Linearity l vs Correction 1000 1000
11 PIF vco l (Fix 0) 1000 0000
12 SECAM R-Y Black Adj l SECAM B-Y Black Adj 1000 1000
13 N-Com BLK RGB Contrast 0000 0000
14 * H-STP F ID Self Adj. ID SW ABL Start Point 0000 0000
15 TEST MODE 0000 0000
Read mode
Slave address : 89HEX
J, 6 5 4 3 2 1 Ji,
POR IF Lock H Lock IF Level V Frq. Color System
Y-IN RGB OUT H-OUT V-OUT * V Lock I AFT
1998-05-12 26/77
TOSHIBA TB1231CN
BUS CONTROL CONTENTS
Write mode
CHARACTERISTIC DESCRIPTION PRESET
Au Gain (Audio Gain SW) 0 : 50kHz 1 , 25kHz (X2 on 4.5MHz mode) 50kHz
WPS (White Peak Suppressor) 0 : ON 1 : OFF ON
Uni-Color Min : -11.6dB~Cen : 6.6dB~Max .' 11.6dB -11.6dB
00 : Normal 01 : Y-Mute
10 : RGB Out-Cut Off DC
Mute (Mute Mode) 11 : RGB Out-Cut Off DC+VP Out Hi Y-Mute
(Service mode)
Brightness Min : 1.9V~Cen : 2.6V--Max : 3.4V (Pedestal Level) 2.6V
Color Min : -20dB or less-Cen : 0dB--Max .' 8.15dB OdB
V-AGC (Vertical AGC Speed) 0 : Normal 1 : x3 Normal
TINT Min : -38o-Cen : 0°~Max : 38° 0°
AF-G (AF Gain SW) 0 : 50ps (5.5/6.0/6.5MHz) 1 : 75ps (4.5MH2) 50ps
Vi POL (Video Polarity) 0 : Normal 1 : Reverse (For L-SECAM) Normal
Sharpness Min : -11dB--Cen : 5dB--Max : 12dB OdB
BPF/TOF SW 0 : BPF 1 : TOF BPF
C-Trap (Chroma Trap) 0 : OFF 1 : ON OFF
AU SW (Audio SW) 0 : TV 1 : EXT. TV
Video SW 00 : TV 01 : EXT. 10 : TV Y/C 11 : EXT Y/C TV
Half Tone 0 : OFF 1 : ON OFF
ABL Gain 00: -0.74V 01 : -0.641/ 10: -0.37V 11 : -0.12V -0.741/
000 : Auto1-"443PAL/358NTSC (/SECAM)/443NTSC
001 : Auto2-358NTSC/M-PAL/hl-PAL
Color System 010 : Fixed 443PAL 011 : Fixed M-PAL Auto1
100 : Fixed N-PAL 101 : Fixed 358NTSC
110 : Fixed 443NTSC 111 : SECAM
CW SW 0 : Auto 1 : 4.43MH2 Auto
Sub-Contrast Min : -3.5dB--cen : 0dB~Max : 2.3dB OdB
RGB Cut Off Min : -0.51/--cen : OV-Max : 0.5V iOdB
G/B Drive Min : -5.5dB--cen : 0dB~Max : 3.5dB -5dit
AFT Polarity 0 : Normal 1 : Reverse (For L-SECAM) Normal
AFTM (AFT Mute) 0 : Normal 1 : Mute Normal
Vertical Position 000 : OH 111 : 7H Delay/Pulse Width : 8H 0H
Horizontal Position Min : -3ps--cen : 0ps--Max : 3ps Ops
B.B. (Blue Back) 0 : OFF 1 : 50IRE OFF
Audio ATT Min : -85dB--Cen : -15dB--Max : Odit Min
. 00 : Auto 01 : 60Hz 10 ', 263H Fixed
V-Freq (Vertical Frequency) 11 : 313H Fixed Auto
RF AGC 000000 : IF Mute Min .' 65dB/z1/--Max 100dB/A/ Mltfte
. 00 : Normal 01:1/3 10: x3 at VBLK
AFC Gain 11 : AFC Off Normal
Vertical Size Min : -40%--Cen : 0%--Max .' 40% 0%
1998-05-12 27/77
TOSHIBA TB1231CN
CHARACTERISTIC DESCRIPTION PRESET
. . Upper Side , Min : 16%--Cen : 0%~Max : -14%
V L . . "
inearity Lower Side ; Min : -20%--Cen : 0%~Max : 17.5% 0%
. Upper Side , Min : 12%--Cen : 0%--Max : -12%
S Correction Lower Side ; Min : 15%-Cen : 0%--Max : -15% M
PIF VCO (PIF VCO f0 Adj.) Min : -2MHz--Cen '. 0MHz--Max : 2MHz OMHz
Min : -176mV--Cen : OmV --Max : 154mV
E AM R-Y Bl k A . V
S C ac d] (At R Output) Om
. Min : -280mV--Cen : omv--
SECAM B-Y Black Adj Max : 245mV (At B Output) OmV
N-Com (NTSC Comb SW) 0 : ON 1 .' OFF ON
BLK (Blanking SW) 0 : BLK ON 1 : BLK OFF ON
RGB Contrast Min : -6.0dB--Cen .' 9.4dB--Max .' 14.0dB -6.0dB
O : Normal
H-STP (H-Out Stop) 1 (& Mute data ; 11) Normal
: H-Out Stop & Low RGB Output
0 : Normal 1 : Killer OFF on Fixed System
FID (Forced ID ON) (This function doesn't work on Auto1 & Auto2 Mode.) Normal
Self Adj.
. 00:AFT 01:Bl 10:Red 11:RFAGC 1/2 AFT
(AFT Output SW for Self Adj.) ue e x
IDSW (ID Sensitivity Switching) 0 : Normal Mode 1 : Low Mode Normal
ABL Start Point 00: -0.01V O1 : -0.11V 10: -0.3V 11 : -0.451/ -0.011/
For factory-TEST.
TE T TE T M DE . HEX
S ( S O ) Leave these bitspreset data. 00
Read mode
CHARACTERISTIC DESCRIPTION
POR (Power On Resection) 0 : Normal 1 : Resister Preset
IF Lock (IF Lock Detection) 0 : Lock Out 1 : Lock In
H-Lock
(Horizontal Lock Detection) 0 . Lock Out 1 . Lock In
IF Level (IF AGC Gain Detection) 0 : High TAGC Gain 1 : Low IFAGC Gain
V Frq (Vertical Frequency) 0 : 50H2 1 : 60Hz
000 : B/W 001 : 4.43PAL 010 : M-PAL 011 : N-PAL
Color System 100 : 3.58NTSC 101 : 4.43NTSC 110 : SECAM
111 : N/A
Y-IN (For Self-Diagnostic) 0 : No Signal 1 : OK
RGB Output (For Self-Diagnostic) 0 : No Signal 1 : OK
H-OUT .
(For SeIf-Diagnostic) 0 . No Signal 1 . OK
V-OUT . .
(For Self-Diagnostic) 0 . No Signal 1 . OK
V-Lock (Vertical Lock Detection) O . Lock Out 1 : Lock In
AFT (AFT Lock Detection)
00 : Lock Out 01 : High Freq. 10 .' Low Freq.
11 : Lock In
1998-05-12 28/77
TOSHIBA TB1231Chl
" BUS CONTROLLED FORMAT SUMMARY
Bus controlled format of TB1231N is based on " Bus Control format of Philips.
Data transfer format
I S I Slave address I 0 I A I Sub address I A I Data I A I P I
I . t . t .
MSB 7bit MSB 8bit MSB 8bit
(1) Start and stop condition
SDA \ I N l
Start Condition
_-_ _______ -J
Stop Condition
(3) Acknowledge
From master
x TT, Impedance
From Slave
SDA High Impedance
From master
L____ ______________ ____J
S : Start Condition
P : Stop Condition
A : Acknowledge
(2) Bit transfer
SDA / I
t I I I I
SDA cannot change. I\SDA can change.
(4) Slave address
A6 A5 A4 A3 A2 A1 A0
Purchase of TOSHIBA IZC components conveys a license under the Philips IZC Patent Rights to use
these components in an " system, provided that the system conforms to the Pc Standard
Specification as defined by Philips.
1998-05-12 29/77
TOSHIBA
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage (9V VCC) Vccmaxg 12 V
Supply Voltage (5V Vcc) Vccmaxs 8 V
Power Dissipation PDmax 1980 (*) mW
Input Terminal Voltage Vin GND-0.r-vcc+0.3 V
Operating Temperature Topr - 20--65 "C
Storage Temperature Tstg - 55--150 °C
TB1231CN
(*) When using this device at above Ta =25°C, the power dissipation decreases by 15.9mV
per 1°C rise.
(*) Pin 9 and pin 36 are weak against static electricity and surge impulse. Please take counter
measure to meet, if necessary.
Ta-PD CURVE
POWER DISSIPATION PD (mW)
Ta CC)
1998-05-12 30/77
TOSHIBA TB1231CN
ELECTRICAL CHARACTERISTICS
DC CHARACTERISTICS
Pin voltage
PIN No. PIN NAME SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
1 De-Emphasis V1 - - 4.5 5.0 5.5 V
2 Audio Output V2 - - 3.0 3.6 4.2 V
3 IF Vcc v3 - Supply 9V - 9.0 - v
4 AFT Output V4 - - 2.0 2.5 3.0 V
7 IF Input V7 - - 2.1 2.7 3.3 V
10 APC Filter v10 - - 1.8 2.5 3.2 v
11 X'tal VII - - 37 4.0 4.3 v
13 YS v13 - - - 0.17 0.4 v
14 Analog R Input v14 - - 1.8 2.5 3.2 v
15 Analog G Input V15 - - 1.8 2.5 3.2 V
16 Analog B Input V15 - - 1.8 2.5 3.2 V
17 RGB Vcc V17 - Supply 9V - 9.0 - V
18 R Output V13 - - 2.30 2.65 3.00 V
19 G Output V19 - - 2.30 2.65 3.00 V
20 B Output V20 - - 2.30 2.65 3.00 V
21 ABCL v21 - - 5.70 6.05 6.30 v
26 SCL V25 - - 4.5 5.0 5.5 V
27 SDA v27 - - 4.5 5.0 5.5 v
28 HA/CC V26 - Supply 9V - 9.0 - V
29 1',jno/egtu''tut/ Fsc v29 - - 1.40 1.75 2.00 v
35 Video SW Output V35 - - 1.90 2.15 2.50 V
36 Digital VDD v36 - Supply 5V - 5.0 - v
37 SECAM B-Y Input V37 - - 2.3 2.5 2.7 V
38 SECAM R-Y Input V38 - - 2.3 2.5 2.7 V
39 Y Input v39 - - 2.5 2.8 3.2 v
40 H.AFC V40 - - 6.0 6.8 7.5 V
41 Ext. Video/Y v41 - Video sw : 01 2.7 3.0 3.4 v
43 TV Video Input V43 - Video SW : 00 2.7 3.0 3.4 V
44 Black Detection V44 - - 2.00 2.25 2.60 V
45 Ext. C Input V45 - - 2.7 3.0 3.4 V
46 Y/C Vcc 1/46 - Supply 5V - 5.0 - v
47 PIF Det.0utput V47 - - 4.8 5.3 5.8 V
48 Loop Filter V48 - - 4.1 4.6 5.1 V
1998-05-12 31/77
TOSHIBA TB1231CN
PIN No. PIN NAME SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
50 PIF VCO v50 - - 7.4 8.0 8.6 v
51 PIF VCO v51 - - 7.4 8.0 8.6 v
52 VCO Vcc V52 - Supply 9V - 9.0 - V
Limiter Input/
53 Curre Correction V53 - - 3.9 4.5 5.1 V
54 Ripple Filter V54 - - 5.2 5.9 6.6 V
55 Ext. Audio Input v55 - - 3.8 4.4 5.0 v
Current dissipation
PIN No. PIN NAME SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
3 IF VCC lccg - Supply 9V 8.5 15 19 mA
17 RGB VCC lcc17 - Supply 9V 8.5 12 14 mA
28 HA/CC lccze - Supply 9V 12 16 22 mA
36 Digital VCC lCC36 - Supply 5V 7 12 15 mA
46 Y/C Vcc Icc45 - Supply SV 45 65 76 mA
52 VCO vcc Icc52 - Supply 9V 15.5 23 29 mA
RECOMMENDED OPERATING POWER SUPPLY VOLTAGE
PIN No. PIN NAME MIN. TYP. MAX. UNIT NOTE
3 IF VCC 8.5 9 9.5 V -
17 RGB Vcc 8.5 9 9.5 V -
28 HA/CC 8.5 9 9.5 V -
36 Digital Vcc 4.5 5 5.5 v -
The thermal drift of the Y
46 Y/C VCC 4.5 5 5.5 V /C VCC should be less than
52 VCO VCC 8.5 9 9.5 v -
1998-05-12 32/77
TOSHIBA
TB1231CN
AC CHARACTERISTIC
PIF stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta=25°C)
CHARACTERISTIC SYMBOL E33; TEST CONDITION MIN. TYP. MAX. UNIT
87.5% VDET875 2.0 2.2 2.4
Elset' Output L-SECAM VDETLS - P1 2.0 2.2 2.4 vp.p
110% VDET110 2.0 2.5 3.0
PIF Input MIN. EPIFINMIN - 37 - dB/d/
Sensitivity MAX. EPIFINMAX - P2 100 107 -
f AGC Range AEIFAGC 65 70 - dB
PIF Det. Sync. Tip Level VSYNC - P 2.6 2.9 3.2 V
L-SECAM White Peak Level VLSW 3 4.6 4.9 5.2 v
Output Level - VNOIF - P 4.8 5.2 5.6 V
for No Input L-SECAM VNOIFLS 4 2.2 2.6 3
Differential Gain DG P - 2 5 %
Differential Phase DP - 5 - 2 5 °
PIF Output Freq. Response FRDET - P6 5 7 - MHz
S/N S/NPIF - P7 52 55 - dB
Intermodulation I107 - P8 42 45 - dB
MAX. VIFAGCMAX 7.3 7.5 -
IF AGC Voltage MIN. VFAGCMIN - P9 - 3.8 - V
RF AGC MAX. VRFAGCMAX - P - 9 - V
Voltage MIN. VRFAGCMIN IO - 0.2 0.5
RF AGC Control Range AERFAGC - P11 35 - - dB
AFT Center Voltage VAFTCEN - P12 - 2.5 - V
MAX. VAFTMAX 4.4 4.8 5.2
AFT Voltage MIN. VAFTMIN - P13 - 0.2 0.5 V
AFT Sensitivity PAFT - P14 - 40 - kHz/V
PIF VCO Control Sensitivity AFuco - P15 - 2.5 - MHz/V
','d VCO Pull-ln High FPIFINH - P16 1 1.5 - MHz
ange Low FPIFINL 1 1.5 -
1998-05-12 33/77
TOSHIBA
TB1231CN
SIF & audio stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (35 & 46pin), Ta =25°C)
CHARACTERISTIC SYMBOL E33; TEST CONDITION MIN. TYP. MAX. UNIT
FM Det. Output 5.5MHz/P VAUAc5p 695 927 1236
Level 4.5MHz/P VAUAc4p - SI 649 927 1324 mvrms
4.5MHZ / N VAUAC4N 350 500 700
Audio 5.5MHz/P DAUDIQP - 0.3 1
Distortion 4.5MHz/P D N - S2 - 0.3 1 %
. 5.5MHz/P S/NSIFP 55 60 -
Audio S/N 4.5MHz/P S/NSIFN - S3 52 58 - dB
AMR AMR - s4 50 60 - dB
Limiting Sensitivity ELIM - $5 - 35 - dBpV
Band Width High FAUHSP S 6.7 8.7
(5.5MHz/PAL) Low FAUL5p - 6 - 3.8 5.4 MHZ
Band Width High FAUH4N S 4.9 6.4 -
(4.5MHz/NTSC) Low FAUL4N - 7 - 2.8 4
MAX. GATTMAX - 0 -
(s1t,nuator CEN. GATTCEN - $3 - - 15 - dB
MIN. GATTMIN - -85 -75
Offset between TV/Ext VAUOFFSET - S9 -30 0 30 mV
DC Change by Volume AVVOLDC - S10 - - 100 mV
1998-05-12 34/77
TOSHIBA
TB1231CN
Video stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta=25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
TV Input Dynamic Range DRTV 1.2 1.4 - Vp-p
External Input Dynamic - V1
Range DREXT 1.2 1.4 - Vp-p
TV Mode Gain GTV V 4.8 5.6 6.0 dB
External Mode Gain GEXT 2 4.8 5.6 6.0 dB
AV sw Cross-Talk CTSWTE - V3 - - 55 - 50 dB
CTSWET - - 55 - 50 dB
Y Input Dynamic Range DRY - V4 1.1 1.3 - Vp-p
Y Input Pedestal Clamp
Voltage VYCLP - V5 2.5 2.7 2.9 V
Y Delay Time tYDEL - V6 500 550 600 ns
VBRTMAX 3.0 3.4 3.7
Brightness Chara. VBRTCEN - V 2.3 2.6 2.8 V
VBRTMIN 7 1.6 1.9 2.1
Brightness Data Sensitivity AVBRT 9.4 13.6 16.3 mV/bit
GUCYMAX 10.2 11.6 13.2
Uni-Color Chara. for Y GUCYCEN - V8 5.1 6.6 8.3 dB
GUCYMIN -9.1 - 6.9 - 5.2
Sub-Contrast Chara. GSCONMAX - V9 1.8 2.3 2.8 dB
GSCONMIN -3.0 -3.5 -4.0
Sharpness Peaking Frequency FSHP - V10 3.0 3.3 3.6 MHz
G 7.0 12.0 15.0
Sharpness Control GSHMAX - V 2 0 5 0 7 0 dB
Characteristics SHCEN 11 . . .
GSHMIN -14.0 -11.0 -8.0
Y Frequency Response FRY - V12 5.5 - - MHz
Black Expansion AMP Gain GBLEX 1.2 1.4 1.6 -
Black Expansion Start Point VBLEX - V13 0.9 1.1 1.3 V
Black Peak Detection Level VBLPD - V14 -50 0 50 mV
WPS Level VWPS - V15 2.5 2.8 3.2 Vp-p
Chrome Trap Gain GTRAP 358 - V16 - - -20 dB
GTRAP 443 - - -20 dB
Half Tone Chara. for Y GHTY - V17 -6.9 -6.0 -5.1 dB
1998-05-12 35/77
TOSHIBA
TB1231CN
Chroma stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta =25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
VACCL - 20 30
ACC Chara. VACCH - C1 600 - - mVp-p
F - 5.13 - MH
TOF Chara. (4.43MHz) 0061?: 2 0 2
F - 4.43 - MH
BPF Chara. (4.43MHz) 003443 - 2 o - T
F B443 - C2 - 4 2-8 - MHz
TOF Chara. (3.58MH2) 00:33:88 - '2 0 - -
F - 3.58 - MH
BPF Chara. (3.58MHz) 003833528 2 0 2
C Delay Time tCDEL 550 600 650 ns
Delay Time Difference - C3
between Y/C AtY/C -60 0 60 ns
G 6.93 8.15 9.37
Color Chara. COLMAX - C4 dB
GCOLMIN - - -20
Uni-Color Chara. for C GUCCMIN - C5 -21.5 - 18.8 - 16.0 dB
d f? 30 38 46
Tint Chara. (4.43MHz) A 0443M” -46 -38 -30 deg
Tint Ch (3 58MH ) A 63:23:: - C6 30 38 46 d
I ara. . z A 8358MiN -46 -38 -30 eg
V 0.45 0.55 0.65
Relative Amplitude (PAL) VECRE/Ill: 0 22 0 27 0 32 -
- C7 . . .
V 0.6 0.7 0.8
Relative Amplitude (NTSC) v21: 0 21 0 26 0 31 -
6 - 85 90 95
Relative Phase (PAL) 6:233 233 242 248 deg
- - C8
f? - 88 93 98
Relative Phase (NTSC) 8:: 233 242 247 deg
F4Apcp+ 350 500 -
APC PuII-In Range (4.43MHz) F4APCP- 350 500 - Hz
F 350 500 -
APC Hold Range (4.43MHz) 4APCH+ Hz
F4APCH - - c9 350 500 -
F3Apcp+ 350 500 -
AP P ll-l R . MH H
C u n ange (3 58 z) F3ApCP- 350 500 - z
F3APCH + 350 500 -
APC Hold Range (3.58MH2) F3APCH- 350 500 - Hz
APC Control Sensitivity
(4.43MHz) /3443 - C 0.8 1.0 1.2 Hz/mV
APC Control Sensitivity 10
(4.43MHz) /3358 0.7 0.9 1.1 Hz/mV
1998-05-12 36/77
TOSHIBA TB1231CN
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
PAL ID Sensitivity VPALIDON 1.0 3.0 5.0
(Normal Mode) VPALIDOFF 1.0 3.0 5.0
PAL ID Sensitivity VPALIDLON 4.0 6.0 8.0
(Low Mode) VPALIDLOFF - C 4.0 5.0 8.0
NTSC ID Sensitivity VNTIDON 11 0.4 0.8 1.2 mV
(Normal Mode) VNTIDOFF 0.4 0.8 1.2 p-p
NTSC ID Sensitivity VNTIDLON 0.6 1.2 1.8
(Low Mode) VNTIDLOFF 0.6 1.2 1.8
VIDH 2.9 3.2 3.5
ID Output Level VIDL C12 1.5 1.8 2.1 V
SECAM ID Det. Current ISECAM - C13 80 120 160 pzA
fsc Continuous Wave Output VCW - C14 0.35 0.50 0.70 Vp-p
Sub-Carrier Remain on RGB SCR 0 20 40
Output VSCG - C15 0 20 4O ml/p-p
VSCB 0 20 40
Half Tone Chara. for C GHTC - C16 -6.9 -6.0 -5.1 dB
1998-05-12 37/77
TOSHIBA
TB1231CN
Text stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta =25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
V-BLK Pulse Output Level VVBLK T 0.5 1.0 1.5 v
H-BLK Pulse Output Level VHBLK 1 0.5 1.0 1.5 v
RGB Output Black Level
(OIRE DC) VBLACK - T2 2.35 2.60 2.85 V
RGB Output White Level
(1001RE AC) l/WHITE - T3 - 2.50 - VP'P
Cut-Off Voltage Variable AVCUT+ - T 0.45 0.50 0.55 V
Range AVCUT_ 4 -0.55 -0.50 -0.45
Drive Control Variable Range GDR+ - T5 3.0 3.5 4.0 dB
GDR- -6.0 -5.5 -5.0
VABCLH 6.0 6.1 6.2
ABCL Control Voltage Range VABCLL - T6 5.4 5.5 5.6 V
ACL Gain GACL -16.5 -15 -13.5 dB
VABLP1 -0.06 -0.01 0.04
. VABLPZ -0.16 -0.11 -0.06
ABL Point VABLp3 T7 -0.35 -0.30 -0.25 V
VABLP4 -0.47 -0.42 -0.37
VABLG1 -0.17 -0.12 -0.07
. VABLGZ -0.42 -0.37 -0.32
ABL G - T V
mn VABLG3 8 -0.69 -0.64 -0.59
VABLG4 -0.79 -0.74 -0.69
Analog RGB Dynamic Range DRTX - T9 0.5 - - Vp-p
. G 0.85 1.00 1.20
Analog RGB Contrast 1tf GTXCMAX - T 0 50 0 59 0 71 V
Control Characteristic . TXCCEN 10 . . . p-p
MIN. GTXCMIN 0.08 0.10 0.12
. V 3.0 3.4 3.7
Analog RGB Brightness I): (f,?e,f,)'1x T 2 3 2 6 2 8 V
Control Characteristic . TXBRCEN - 11 . . .
MIN. VTXBRMIN 1.6 1.9 2.1
Analog RGB Mode Switching
Level VYS - T12 0.6 0.8 1.0 V
rRYS - 25 100
Analog RGB Mode Transfer tPRys - T - 30 100 ns
Characteristic rFys 13 - 10 100
tPFYS - 25 100
Cross Talk from Analog RGB
to TV CTTX-TV - T14 - - 55 - 50 dB
Cross Talk from TV to
Analog RGB CTTV-TX - T15 - - 55 - 50 dB
1998-05-12 38/77
TOSHIBA TB1231CN
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
R VROUT 1.0 1.2 1.4
RGB Output
Amplitude G VGOUT - T19 0.45 0.60 0.75 Vp-p
B VBOUT 2.0 2.2 2.4
VSECBMAX 210 245 280
I k I di - - - - mV
zigAaM Bac Leve A j. VSECRMAX 133 154 175
r . VSECBMIN - T20 -320 -280 -240 mV
VSECRMIN - 200 - 176 - 152
SECAM Black Level Adj. Data AVSECB 30 35 40
. . . mV
Sensitivity AVSECR 19 22 25
1H DL stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta=25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
1H DL Dynamic Range DRBDR Pin 37--Pin 20 0.8 1.2 - V
(Direct) DRRDR Pin 38--Pin 18 0.8 1.2 -
1H DL Dynamic Range DRpDL Pin 37--Pin 20 0.8 1.2 - V
(Delay) DRpDL Pin 38--Pin 18 0.8 1.2 -
1H DL Dynamic Range DRBDRDL Pin 37--Pin 20 0.9 1.2 - V
(Direct + Delay) DRRDRDL Pin 38~Pin 18 0.9 1.2 -
. FR A 7 kH - . -2. .
Frequency Response (Direct) BDR - t 00 Z 3 0 0 0 5 dB
FRRDR At 700kHz -3.0 -2.0 0.5
FR A 7 kH - .2 - . -4.
Frequency Response (Delay) BDL - t 00 Z 8 6 5 3 dB
FRRDL At 700kHz -8.2 -6.5 -4.3
AC Gain (Direct) GBDR - P1n Ttin 20 -2.0 -0.5 2.0 dB
GRDR Pin MV-Pin 18 - 2.0 -0.5 2.0
AC Gain (Delay) GBDL - lin T-T 20 -2.4 -0.5 1.1 dB
GRDL Pin MV-Pin 18 - 2.4 -0.5 1.1
Direct-Delay AC Gain AGBDR/DL GBDR-GBDL - 1.0 0.0 1.0 dB
Difference AGRDR/DL GRDR-GRDL - 1.0 0.0 1.0
1H Delay Time TBDL - P1n 37~P1n 20 63.7 64.0 64.4 #5
TRDL Pin 38--Pin 18 63.7 64.0 64.4
1998-05-12 39/77
TOSHIBA
TB1231CN
DEF stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta =25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
AFC Inactive Period 50Hz TSOAFCOFF - D1 - 309-8 - H
60Hz T60AFC0FF - 262-10 -
H-OUT Start Voltage VHON - D2 4.7 5.0 5.3 V
H-OUT Pulse Duty WHOUT - D3 38.5 40.5 42.5 %
H- T F . AF
ou req on C Stop FHAFCOFF - D4 15.585 15.734 15.885 kHz
Horizontal Free-Run 50Hz FHSOFR - D 15.745 15.625 15.775 kHz
Frequency 60Hz FH60FR 5 15.585 15.734 15.885
Horizontal Freq. MAX. FHMAX 16.500 16.700 16.900
. - " kHz
Variable Range MIN. FHMIN 14.700 15.000 15.300
Horizontal Freq. Control
Sensitivity i?HAFC - D7 2.0 2.5 3.0 Hz/mV
Horizontal PuII-In Range FHPH - D8 500 - - Hz
FHpL 500 - -
H-OUT Voltage VHOUTH - D9 4.0 4.4 4.8 v
VHOUTL - 0.15 0.30
Horizontal Freq. Dependence
on VCC AFHVCC - D10 20 0 20 Hz/V
FBP Phase PHFBp D 2.3 2.5 2.7 s
H-Sync. Phase PHHSYNC ll 0.2 0.3 0.4 '
Horizontal Position Variable
Range APHHPOS - D12 5.5 6.0 6.5 ps
AFC-2 Pulse Threshold Level VAFCZ - D13 4.7 5.0 5.3 V
H-BLK Pulse Threshold Level VHBLK D14 0.8 1.1 1.4
Black Peak Det. Stop Period PHBPDET D 7.5 8.0 8.5 s
(H) WBpDET 15 13.0 13.5 14.0 '
Clamp Pulse Start Phase PHcp D 2.8 3.0 3.2 s
Clamp Pulse Width ch 16 5.6 5.8 6.0 ”
Gate Pulse Start Phase PHGP - D 2.7 2.9 3.1 s
Gate Pulse Width WGp 17 1.8 2.0 2.2 "
Sync. Output Low Level VSYNCL - D13 0.0 0.3 0.5 V
Vertical Oscillation Start
V - D 4.7 . . V
Voltage VON 19 5 0 5 3
Vertical Free-Run Auto FVAUFR D 40 45 50 Hz
Frequency 60Hz FV60FR 20 48 53 58
Gate Pulse 50Hz TSOGPM D - 308-9 - H
V-Masking Period 60Hz TGOGPM 21 261-10 -
V.Ramp DC on Service Mode VNOVRAMP - D22 3.0 3.2 3.4 V
- 224.5 -
Vertical PulI-ln Range (Auto) FVPAUL
FVPAUH - D23 - 353 - H
. FVP60L - 224.5 -
Vertical Pull-ln Ran e (60Hz)
g FVPGOH - 297 -
1998-05-12 40/77
TOSHIBA TB1231CN
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Vertical Period on Fi ed T - 313 -
I I IX V313 - D24 H
Mode TV263 - 263 -
50Hz PHSOVBLK 44 46 48
V-BLK St rt Ph
a ase 60Hz PH60VBLK 44 46 48 /d;
50Hz WSOVBLK - D25 - 23 -
V-BLK Width H
60Hz W60VBLK - 21 -
Picture Mute Period 50Hz WSOPM - D26 - 304-29 - H
60Hz W60PM - 257-28 -
VSCPH 7.70 8.00 8.30
Sand Castle Pulse Level VSCPM - D27 4.00 4.30 4.60 V
VSCPL 2.25 2.55 2.85
Vertical Ramp Amplitude VVRAMP - D28 1.50 1.67 1.83 Vp-p
Vert1ca| AMP Gain GVAMP 22 25 28 dB
Vertical AMP Max. Output V
Level VOMAX - D29 2.5 3.0 3.5 v
Vertical AMP Min. Output V
Level VOMIN - 0.0 0.3 V
Vertical AMP Min. Output
Current IVOMAX - D30 11 14 17 mA
Vertical NFB Amplitude VNFB 1.50 1.67 1.83 Vp-p
Vertical Amplitude Variable AVVRAMPH - D31 36 40 44 [y
Range AVVRAMPL -44 -40 -36 a
AVLIN1+ -17 -14 -ll
Vertical Linearity Variable AVLIN1- - D 13 16 19 ry
Range AVL|N2+ 32 14.5 17.5 20.5 (1
AVLINZ - - 23 - 20 - 17
AVS1 + -14 - 12 - 10
Vertical S Correction Variable AVSI- 10 12 14
- D33 %
Range AV52 + - 18 - 15 - 12
AVS2 - 12 15 18
V-AGC Current IVAGCH - D34 440 550 660 pzA
IVAGCL 100 120 140 pzA
Vertical Guard Voltage VVG - D35 1.80 2.00 2.20 V
V Integral constant TVSY - D36 12.5 14 16.5 PS
1998-05-12 41/77
TOSHIBA TB1231CN
TEST CONDITION
PIF stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta=25°C)
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a 38.9MHz, 90dB/JV, 87.5%
modulated while signal into Pin 6.
(2) Adjust PIF VCO so that the AFT voltage is
(3) Measure the amplitude of PIF det. output
PIF Det. Output Level RF AGC : except 0 at Pin 47 (Vi Pol : 0), that is "VDET875"-
/VDET875 PIF VCO: adjust (4) Input a 38.9MHZ, 90dBpV, 87.5%
/VDETLS Vi Pol : 0/1 modulated L-SECAM white signal into Pin 6.
/VDET110 Others : Preset (5) Measure the amplitude of PIF det. output
at Pin 47 (Vi Pol : 1), that is "VDETLSH-
(6) Input a 38.9MHz, 90dBpV, 110% modulated
white signal into Pin 6.
(7) Measure the amplitude of PIF det. output
at Pin 47 (Vi Pol : 0), that is "VDET110".
(1) Input a 38.9MHz, 90dBp1/, 87.5%
modulated white signal into Pin 6.
(2) Adjust PIF VCO so that the AFT voltage is
(3) Decreasing the IF input level, measure the
(£22332; RF AGC : except 0 input level at which PIF det. output
P2 PIF VCO: adjust amplitude turrts to be -3dB,, against
Others : Preset VDET875 that G .EPIF'NM'N .
(4) Increasing the IF input level, measure the
input level at which PIF det. output
amplitude turns to be -0.5dB against
VDET875 that is "EPIFINMAX"-
(5) Calculate ;
"AEIFAGC" = EPIFINMAX - EPIFINMIN
(1) Input a 38.9MHz, 90dB/A/, non-modulation
signal into Pin 6.
/VSYNC RF AGC : except 0 (2) Adjust PIF VCO so that the AFT voltage is
PIF VCO: adjust 2.5V.
L-SECAM White Vi Pol : 0/1 (3) Measure; the DE level at Pin 47 (Vi Pol : 0),
Peak Level Others : Preset that IS VSYNC .
/VLSW (4) Measure the DC level at Pin 47 (Vi Pol : 1),
that is "Vst".
PIF Input
Sensitivity
IF AGC Range
IAEIFAGC
PIF Det. Sync. Tip
1998-05-12 42/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Connect Pin 6/7 to GND.
Output Level for ' (2) Suppl 3.0V to Pin 9.
No Input RF AGC q except 0 (3) Measgre the DC level at Pin 47 (vi Pol : 0),
P4 Vi Pol : 0/1 . " "
lVNOIF Others : Preset that IS VNOIF .
/VNOIFLS (4) Measure the DC level at Pin 47 (Vi Pol : 1),
that is "VNOIFLSH-
Differential Gain (1) Input a 38.9MH2, 90dBpV, 87.5%
IDG RF AGC : except 0 modulated video signal into Pin 6.
P5 PIF VCO: adjust (2) Adjust PIF VCO so that the AFT voltage is
Differential Phase Others : Preset 2.5V.
/ DP (3) Measure "DG" & "DP" for Pin 47 output.
(1) Input a 38.9MHz, QOdByV, 87.5%
modulated sweep video signal into Pin 6.
(2) Adjust PIF VCO so that the AFT voltage is
PIF Output Freq. RF AGC : exeept 0 (3) Measure the Pin9 DC level and fix it on
P6 Response PIF VCO: adjust
/FRDET Others : Preset that value.
(4) For PIF det. output signal, measure the
frequency at which the amplitude (Without
sync) turns to be -3dB against the one for
10kHz, that is "FRDET"
(1) Input a 38.9MHz, 90dBluV, non-modulation
signal into Pin 6.
RF AGC : except 0 (2) Adjust PIF VCO so that the AFT voltage is
S/N . di t 2.5V.
P7 /S/NPIF EEthCsO: :rér; (3) Measure the amplitude of PIF det. output,
that Is VN.
(4) Calculate , "S/NpIF" =20*fog (VDET875/
(1) Input a signal composed of following 3
signals into Pin 6;
38.9MHZ / 90dB/N,
34.47MH2 / 84dBp1/
Intermodulation RF AGC : except 0 33.4MHz/84dBpV
P8 PIF VCO: adjust (2) Adjust PIF VCO so that the AFT voltage is
Others : Preset
(3) Adjust Pin9 voltage so that the bottom of
PIF det. output is equal to VSYNC.
(4) Measure the 1.07MHz level against the
4.43MHz level (=OdB), that is "l107"
1998-05-12 43/77
TOSHIBA
TB1231CN
NOTE ITEM /SYMBOL
BUS CONDITION
MEASUREMENT METHOD
IF AGC Voltage
P9 / VIFAGCMAX
/ VIFAGCMIN
RF AGC : except 0
PIF VCO: adjust
Others :Preset
(1) Connect Pin 6/7 to GND.
(2) Measure the Pin9 voltage, that is
"VIFAGCMAX"-
(3) Input a 38.9MHz, 107dBpA/, non-modulation
signal into Pin 6.
(4) Adjust PIF VCO so that the AFT voltage is
(5) Measure the Pin 9 voltage, that is
"VIFAGCMIN"-
RF AGC Voltage
P10 /VRFAGCMIN
/ VRFAGCMAX
RF AGC : adjust
PIF VCO: adjust
Others :Preset
(1) Input a 38.9MHz, 90dBpV, non-modulation
signal into Pin 6.
(2) Adjust PIF VCO so that the AFT voltage is
(3) Adjust RF AGC so that the Pin9 voltage is
(4) Increase the IF input level to 107dBpV.
(5) Measure the Pin 8 voltage, that is
"VRFAGCMIN"
(6) Connect Pin 6/7 to GND.
(7) Measure the Pin 8 voltage, that is
"VRFAGCMAX"
(1) Input a 38.9MHz, 90dBpV, non-modulation
signal into Pin 6.
(2) Adjust PIF VCO so that the AFT voltage is
(3) Set RF AGC to 1.
(4) Decreasing the IF input level, measure the
RF AGC Control : . . . .
RF AGC 1/..63 input level at which the Pin 8 voltage IS
P11 Range PIF VCO: adjust 4.51/ that is ERFAGCMIN
IAE : . ' .
RFAGC Others Preset (5) Set RF AGC to 63.
(6) Increasing the IF input level, measure the
input level at which the Pin 8 voltage is
4.5V, that is ERFAGCMAX.
(7) Calculate ;
"AERFAGC" = ERFAGCMAX - ERFAGCMIN
(1) Connect Pin 6/7 to GND.
P12 CEaCeenter RF AGC : except 0 (2) Supply 3V to Pin 9.
g Others .' Preset (3) Measure the Pin4 voltage, that is
/VAFTCEN
"VAFTCEN".
1998-05-12 44/77
TOSHIBA
TB1231CN
ITEM /SYMBOL
BUS CONDITION
MEASUREMENT METHOD
AFT Voltage
/ VAFTMAX
/ VAFTMIN
RF AGC : except 0
PIF vco: adjust
Others :Preset
(1) Input a 38.9MH2, 90dBpV, 87.5%
modulated video signal into Pin 6.
(2) Adjust PIF VCO so that the AFT voltage is
(3) Input a 37.9MHZ, 90dBpV, 87.5%
modulated video signal into Pin 6.
(4) Measure the Pin4 voltage, that is
"VAFTMAX"
(5) Input a 39.9MHz, 90dBpV, 87.5%
modulated video signal into Pin 6.
(6) Measure the Pin4 voltage, that is
"VAFTMIN"
AFT Sensitivity
RF AGC : except 0
PIF VCO: adjust
Others :Preset
(1) Input a 38.9MHz, 90dBpV, non-modulation
signal into Pin 6.
(2) Adjust PIF VCO so that the AFT voltage is
(3) When changing the input frequency to
120kHz, measure the change of Pin4
voltage, that is AVAFT.
(4) Calculate ; "PAFT" =40/AVAFT
PIF VCO Control
Sensitivity
/ /3IFVCO
RF AGC : except 0
PIF VCO: adjust
Others :Preset
(1) Input a 38.9MHz, 90dB/1V, non-modulation
signal into Pin 6.
(2) Adjust PIF VCO so that the AFT voltage is
(3) Measure the Pin 48 voltage, that is
VLOOP389-
(4) Input a 38.7MH2, 90dBp1/, non-modulation
signal into Pin 6.
(5) Measure the Pin 48 voltage, that is
VLOOP387.
(6) Calculate ;
''aFuco'' = 0.2 / (VLOOP387 - VL00P389)
PIF vco Pull-ln
IFPIFINH
/FPIFINL
RF AGC : except 0
PIF VCO: adjust
Others :Preset
(1) Input a 45MHz, 90dBpV, 87.5% modulated
video signal into Pin 6.
(2) Adjust PIF VCO so that the AFT voltage is
(3) Dcreasing the input frequency, measure the
frequency at which detected video signal
appears on Pin 47, that is "FPIFINH"
(4) Input a 30MHz, 90dBpV, 87.5% modulated
video signal into Pin 6.
(5) Increasing the input frequency, measure
the frequency at which detected video
signal appears on Pin 47, that is "FPIFINL"
1998-05-12 45/77
TOSHIBA
TB1231CN
SIF & audio stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (35 & 46pin), Ta =25°C)
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a 5.5MHz, 90dB/1V FM signal
(Modulate 400Hz with 50kHz deviation) into
Pin 53.
(2) Measure the output amplitude at Pin 2, that
is ''VAUAC5p". (Au Gain : o, AF-G : 0)
. ' (3) Input a 4.5MHz, 90dBpV FM signal
FM Det. Output Level AUdlo.ATT . 127 (Modulate 400Hz with 50kHz deviation) into
(VAUACSP Au Gain : 0/1 .
Sl /VAUAC4p AF-G : 0/1 Pin 53.
/VAUAC4N Others . Preset (4) Measure the output amplitude at Pin 2, that
. is 'NAuAC4p''. (Au Gain 1 0, AF-G I 0)
(5) Input a 4.5MHz, 90dBpN FM signal
(Modulate 400Hz with 25kHz deviation) into
Pin 53.
(6) Measure the output amplitude at Pin 2, that
is ”VAUAC4NH- (Au Gain : 1, AF-G : I)
(1) Input a 5.5MHz, 90dB/z1/ FM signal
(Modulate 400Hz with 50kHz deviation) into
Pin 53.
(2) Measure the distortion of Pin 2 output, that
S2 Audio Distortion Audio ATT : 127 is "DAUDIOP"-
/DAUDIO Others : Preset (3) Input a 4.5MHz, 90dB/N FM signal
(Modulate 400Hz with 25kHz deviation) into
Pin 53.
(4) Measure the distortion of Pin 2 output, that
is ”DAUDION"-
(1) Input a 5.5MHz, 90dBpz1/ non-modulation
signal into Pin 53.
(2) Measure the output amplitude at Pin 2, that
is VNOAUACP-
(3) Calculate ,
S3 Audio S/N Audio ATT : 127 "S/Nw:P" =20*eog (VAUACSP/VNOAUACP)
/S/NW: Others : Preset (4) Input a 4.5MHz, 90dB/N non-modulation
signal into Pin 53.
(5) Measure the output amplitude at Pin 2, that
is VNOAUACN.
(6) Calculate ,
"s / NSIFN” = 20*tog (VAUACSP / VNOAUACN)
1998-05-12 46/77
TOSHIBA
TB1231CN
NOTE ITEM /SYMBOL
BUS CONDITION
MEASUREMENT METHOD
S4 IAMR
Audio ATT :
: Preset
Others
(1) Input a 5.5MH2, 90ngV AM signal
(Modulate 400Hz with 30%) into Pin 53.
(2) Measure the output amplitude at Pin 2, that
is VAMAU.
(3) Calculate ,
"AMR" = 20*Ng (VAUACSP/ VAMAU)
Limiting Sensitivity
Audio ATT :
: Preset
Others
(1) Input a 5.5MH2, 90dBp1/ FM signal
(Modulate 400Hz with 50kHz deviation) into
Pin 53.
(2) Decreasing the input level, measure the
input level at which Pin 2 output amplitude
turns to be -3dB against VAUACSP: that is
''ELIM".
Band Width
(5.5MHz/PAL)
/FAUH5P
/FAUL5P
Audio ATT :
I Preset
Others
(1) Input a 5.5MHz, 90dBpN FM signal
(Modulate 400Hz with 50kHz deviation) into
Pin 53.
(2) Increasing the input frequency, measure the
frequency at which Pin 2 output turns to be
-3dil against VAUACSPI that is "FAUHSPn-
(2) Decreasing the input frequency, measure the
frequency at which Pin 2 output turns to be
-3dil against VAUACSPI that is "FAULSPH-
Band Width
(4.5M Hz / PAL)
/FAUH4N
/FAUL4N
Audio ATT :
: Preset
Au Gain
Others
(1) Input a 4.5MH2, 90(1pr FM signal
(Modulate 400Hz with 25kHz deviation) into
Pin 53.
(2) Increasing the input frequency, measure the
frequency at which Pin 2 output turns to be
-3dB against VAUAC4N, that is "FAUH4N".
(3) Decreasing the input frequency, measure the
frequency at which Pin 2 output turns to be
-3dB against VAUAC4N, that is "FAUL4N".
1998-05-12 47/77
TOSHIBA
TB1231CN
NOTE ITEM /SYMBOL
BUS CONDITION
MEASUREMENT METHOD
Attenuator Gain
/GATTMAX
/GATrCEN
/GATTMIN
Audio ATT :
0/64/127
Au SW : 1
Others : Preset
(1) Input a 1MHz, 500mVrms signal into Pin 55.
(2) Set Audio ATT to 0/64/ 127 and measure
the Pin 2 output amplitude for each bus
data, that is VATTMAx/ VATTCEN / VATTMIN.
(3) Calculate ,
"GATTMAX" = 2tPtog (VATTMAX/ 500)
"GATTCEN" = 20*8og (VATTCEN / 500)
"GATTMIN" = 20*fog (VATTMIN / 500)
Offset between
S9 TV / Ext.
/VAUOFFSET
Audio ATT : 127
Au SW : 0/1
Others : Preset
(1) Input a 5.5MHz, 90dB/z1/ non-modulation
signal into Pin 53.
(2) Connect Pin 55 to GND via a 4.7PF
capacitor.
(3) Switching Au SW to 0/1 and measure the
change of Pin 2 DC level, that is
"VAUOFFSETn-
DC Change by
S10 Volume
/ AVVOLDC
Audio ATT : 0/127
Au SW : 1
Others : Preset
(1) Connect Pin 55 to GND via a 4.7prF capacitor.
(2) Switching Audio ATT to 0/127 and measure
the change of Pin 2 DC level, that is
''nuvo LDC” .
1998-05-12 48/77
TOSHIBA
TB1231CN
Video stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta=25°C)
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
TV Input Dynamic (1) Input a white signal with sync into Pin 41 &
Range 43.
V1 /DRTV Video SW : 00/01 (2) Increasing the input amplitude, measure the
External Input Others : Preset amplitude (Include sync) at which the Pin 35
Dynamic Range output is clipped, that is "DRTV" (Video SW
/DREXT 2 00)/"DREXT" (Video SW 2 01)
TV Mode Gain (1) [n.pu) a Il/p-p, white signal with sync into
/GTV . Pin 4.1. & 43. .
V2 Video SW : 00/01 (2) Set Video SW to 00 and measure the gain
. Others : Preset between Pin 43 and Pin 35, that is "GTV"
Ext. Mode Gain . .
/GEXT (3) Set Video P( to 01 ahd measure the gait:
between Pin 41 and Pin 35, that IS GEXT
(1) Input a PAL red signal with sync into Pin 43
and connect Pin 41 to GND via a 1/1F
capacitor.
(2) Set Video SW 01, measure the amplitude of
AV SW Cross-Talk Video SW : 00/01 4.43MHz signa|.at"Pin 35 ahd calculate the
1/3 /CTSWTE Others . Preset cross-talk, that IS CTSWTE .
/CTSWET . (3) Input a red signal into Pin 41 and connect
Pin 43 to GND via a 1/1F capacitor.
(4) Set Video SW 00, measure the amplitude of
4.43MHz signal at Pin 35 and calculate the
cross-talk, that is "CTSWET".
(1) Input a white signal with sync into Pin 43 &
Y Input Dynamic yn.ifolor : 32 39. . . . .
Brightness : O (2) Increasing the Pin 39 input amplitude,
V4 Range . .
IDRY Color : 0 measure the. amplitude Inch/de sync) It.
Others : Preset which the Pin 18 output IS clipped, that IS
"DRY".
Y Input Pedestal (1) Input a composite sync si.gnal into Pin 43.
V5 Clamp Voltage All : Preset (2) Connect Pin 39 to GND Via a .1/f. capaCItor.
/VYCLP (3) Measure the DC Voltage at Pin 39, that IS
'NYCLP".
. Uni-Color : 63 (1) Input a 2T puise with sync into Pin 43 & 39.
Y Delay Time (2) Observe the Pin 18 output, measure the
V6 MYDEL Color : 0 delay time between Pin 39 and Pin 18 that
Others : Preset . " " I
IS tYDEL .
1998-05-12 49/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
rig tnest . (1) Input a OIRE black signal with sync into Pin
Characteristics
/V 43 & 39.
NBRTMAX Brightness : 0/64/127 (2) Measure the DC level of picture period at
1/7 //'/'/li.f,Et Color : 0 Pin 18 for Brightness : 127/64/0, that is
. Others : Preset "VBRTMAX" / "VBRTCEN" / "VBRTMINH-
Brightness Data
Sensitivity (3) Calculate ,
"AV " = V -v 127
/d1/BRT BRT ( BRTMAX BRTMIN)/
(1) Input a 50IRE (0.357V) white signal with sync
into Pin 43 & 39.
Uni-Color (2) Measure the output picture amplitude at Pin
Characteristics for Y Uni-Color : 0/32/63 18 for Uni-Color 63/32/0, that is VUCYMAX
V8 /GUCYMAX Color I 0 /VUCYCEN\VUCYM|N-
/GUCYCEN Others : Preset (3) Calculate ,
/GUCYMIN "GUCYMAX"=20*€09 (VUCYMAx/0-357)
"GUCYCEN" =20*hrg (VUCYCEN/0-357)
”GUCYMIN" =20*eog (VUCYMIN/0357)
(1) Input a 50IRE white signal with sync into Pin
43 & 39.
. (2) Measure the output picture amplitude at Pin
Sub-Contrast Sub Contrast i, /8/15 18 for Sub-Contrast 15/8/0, that is
Characteristics i- . VSCONMAX / VSCONCEN /VSCONM|N-
V9 Uni Color . 63
/Gsc0NMAX Color . 0 (3) Calculate ,
lGSCONMIN . "GscoNMAx"
Others : Preset
--2tPgog (VSCONMAX/ VSCONCEN)
”GSCONMIN"
=20*eog (VSCONMIN/VSCONCEN)
. Sharpness : 63 (1) Input a 0.5Vp-p sweep signal with sync into
v10 :E'EEEZS Peaking Uni-Color : 63 Pin 43 a 39.
/F q y Color : 0 (2) Measure the frequency at which the Pin 18
SHP Others : Preset output amplitude is Max., that is "FSHp".
(1) Input a 0.5Vp-p sweep signal with sync into
Pin 43 & 39.
(2) Measure the output picture amplitude for
Sharpness- f.ontrol Sharpness : 0/32/63 100KHz at Pin 18, that. IS V5H100K.
Characteristics Uni-Color . 63 (3) Measure the output picture amplitude for
V11 /GSHMAX Color I 0 FSHP when Sharpness is max., center and
/GSHCEN . min., that is VSHMAXI VSHCEN and VSHMIN-
Others . Preset
/GSHMIN (4) Calculate ,
"GSHMAx" =20*tog (VsHMAx/1/sH100k)
GSHCEN =2tPtog (VSHCEN/VSH1OOk)
"GSHMIN''20*eog (VSHMIN/VSHwok)
1998-05-12 50/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a 0.5Vp-p sweep signal with sync into
. Pin 43 & 39.
Uni-Calor q fl, (2) Adjust Sharpness so that the output
Y Frequency Response Sharpness : Adjust .
V12 amplitude for FSHp equals VSH1OOk-
IFRY Color : 0 .
(3) Measure the frequency at which the output
Others : Preset . . .
amplitude IS 3dB down against VSH100kI
which is "FRy".
(1) Input a 100IRE ramp signal with sync into
. Pin 43 & 39.
Black 5x.rension (2) Supply 2.4V/2.0V to Pin 44 and observe the
Start Point Pin 18 output.
/VBLEX (3) Measure "VBLEX" and "GBLEX".
Uni-Color : 63 .
. [Pin 18 Output]
V13 Color . 0 GBLEX .' Ratio of slope below
Others : Preset VBLEX
Black Expansion Pin44 I "he' - -c
AMP Gain ”/ VBLEX
/GBLEX I F" .
Pin44 : 2.0V
(1) Input a composite sync signal into Pin 43.
Black Peak (2) :ncnleas’ltng hth: En 33nD4C4|ev<|atL mejsure the
V14 Detection Level Others : Preset eve a W it e I vo age rops
/AV down, that Is VBLPD.
BLPD (3) Calculate ,
”AVBLPD" = VB LPD - V39
Uni-Color : 63 (1) Lr:::t3a&1;)glRE ramp signal with sync into
V15 WPS Level Brightness : 127 (2) Measure the amplitude from cut-off level to
/VWps Color :0 eak(Atwhichoutputsinnaliscli ed)
Others : Preset p . " " p g pp '
that IS VWPS .
(1) Input a 0.5Vp-p, 3.58MH2 signal with sync
into Pin 43 & 39.
(2) Measure the 3.58MH2 amplitude at Pin 18
for Chroma Trap : 1/0, that is VTRAPON/
VTRAPOFF.
Chroma Trap Gain C-Trap . 0/1 (3) Ealculate J n *
V16 /G 358 Uni-Color: 63 GTRAP358 =20 fog (VTRAPON/VTRAPOFF)
GTRAZA3I Color :0 (4)lnputa0.51/pp4.43MHzsignalwithsync
TRAP Others : Preset into Pin 43 & 39.
(5) Measure the 4.43MHz amplitude at Pin 18
for Chroma Trap .' 1/0, that is VTRAPON/
VTRApoFF.
(6) Calculate ,
"GTRAP443" = 20*eog (VTRAPON /VTRAPOFF)
1998-05-12 51/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a 100IRE white signal with sync into
Pin 43 & 39.
Half Tone 3:22:21: , 22:1 (2) Measure the output picture amplitude at Pin
V17 Characteristics for Y Color I 0 18 for Half Tone : 1/0, that is VHTYON/
/GHTY Others : Preset VHTYOFF.
(3) Calculate ,
"GHTY" = 20*4og (VHTYON /VHTYOFF)
1998-05-12 52/77
TOSHIBA
TB1231CN
Chrome stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta =25°C)
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a 4.43MHz PAL rainbow color-bar
(300m1/p-p, burst : chroma=1 : 1) with sync
. . into Pin 43.
C1 Iff Characteristics [Clarilifgolor , g; (2) Changing the amplitude of burst and
NACCH Others : Preset chroma, measure the input amplitude at
ACCL . which Pin 20 output amplitude is +1dB/ -
1dB against the one for 300mVp-p input,
that is "VAccH"/"VAccL''.
TOF Characteristics
(4.43MHz)
(gong (1) Set C-BPF to 1 and Color System to 010.
il,1Plh3aracteristics (2) Input a sweep signal into Pin 43.
(4.43MHz) (3) Observe the frequency response at Pin 18
/F. TEST : 01000111 and measure the Peaking Frequency/Q of
'21he C-BPF : 0/1 chroma filter, that is "F0T443"/"QT443".
c2 (ifl1fh3aracte,istics Color . (110/101 (4) Set C-BPF to o and Color System to 010 and
(3 58MHz) System . repeat (2) & (3), that is "F0B443"/"QB443".
' Others : Preset (5) Set C-BPF to 1 and Color System to 101 and
/QOT358 repeat (2) & (3), that is "F0T358"/"QT3S8".
il/,ygaracteristics (6) Set C-BPF to o and Color System to 101 and
(3 58MHz) repeat (2) & (3), that is "FOB358"/"QB358".
/FOB358
/QB358
. (1) Input a 4.43MHz, PAL rainbow color-bar
f, Delay Time (300mVp-p, burst : chroma=1 : I) with sync
CDEL Mute : 01 into Pin 43.
C3 Dela Time Difference Uni-Color : 63 (2) Observe the Pin 18 output, measure the
betmi/een Y/C Others : Preset delay time between Pin 43 and Pin 18, that
is "tcDEL''.
lAtY/c (3) Calculate , ''nty/c"--tYDEL-tcDEL
(1) Input a 4.43MHz PAL rainbow color-bar
(300mVp-p, burst : chroma=1 : 1) with sync
into Pin 43.
Color Characteristics CMOJ: . 81/64/127 (2) Measure the Pin 18 amplitude for Color 127
C4 /GCOLMAX Uni_Co|orI 63 /64/0, that is VCOLMAX/VCOLCEN/
IGCOLM'N Others : Preset COLMIN
(3)Calculate ;
"GCOLMAX" = 20Vog (VCOLMAX/ VCOLCEN)
GCOLMIN =20*tog (VCOLMIN/VCOLCEN)
1998-05-12 53/77
TOSHIBA
TB1231CN
Relative Amplitude
(NTSC)
/VNR/B
/VNG/B
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a 4.43MHz, PAL rainbow color-bar
(300mVp.p, burst : chroma=1 : 1) with sync
Uni-Color Uni-Color: 0/63 into Pin 43.
C5 Characteristics for C Mute : 01 (2) Measure the Pin 18 amplitude for Uni-Color
IGUCC Others : Preset 63/0, that is VUCCMAX and VUCCMIN-
(3) Calculate ,
"Gucc" =20*8og (VUCCMIN/VUCCMAX)
(1) Input a 3.58MHz NTSC rainbow color-bar
(286mVp-p, burst .' chroma=1 : 1) with sync
into Pin 43.
Tint Characteristics (2) Set Tint to 64 and adjust the burst phase
(3.58MHz) so that the 6th bar of Pin 20 output is
M 9358MAX maximum, that is 5358CEN-
/A 5358NHN (3)Change Tintto 127/0 and adjustthe burst
Tint : 0/64/127 Phase .so that the .6th bar of Pin 20 output
Mute : 01 IS maximum, that Is (?3s8MAx/83s8hmN.
C6 . (4) Calculate ;
Uni-Color: 63 "n t? " = -0? -t?
Others : Preset " 358MA5, 358MAX 358CEN)
n 6358NHN = -W3s8hmN-e358CEN)
Tint Characteristics (5) Input a 4.43MH2 NTSC rainbow color-bar
(4.43MHz) (286mVp-p, burst : chroma=1 : 1) with sync
M 9443MAX into Pin 43 and repeat (2) & (3), that is
/A 5443mm t?443cEN/e443Max/f?443twN.
(6) Calculate ;
"n 6443MAX" = -(6443MAx- 9443CEN)
"n 6443mm" = -(6443MIN -9443CEN)
(1) Input a 4.43MHz, PAL rainbow color-bar
(300mVp-p, burst : chroma=1 : 1) with sync
Relative Amplitude into Pin 43.
(PAL) (2) Measure the amplitude of Pin 18/ 19/20
/VpR/B output, that is ''1/pRoUT"/"1/pGOUT''/
/VPG/B "VPBOUT"
Mute : 01 (3) Eslcmatf l /V
c7 Uni-Color:; "VPR/B”: PROUT PBOUT
Others : Preset PG/B =VpGOUT/VpBoUT
(4) Input a 3.58MHz NTSC rainbow color-bar
(286mVp-p, burst : chroma=1 : 1) with sync
into Pin 43, then repeat (2), that is
VNROUT/VNGoUT/VNBOUT.
(5) Calculate ;
"VNR/B" = VNROUT/VNBOUT
"VNG/B" = VNGOUT/VNBOUT
1998-05-12 54/77
TOSHIBA
TB1231CN
ITEM /SYMBOL
BUS CONDITION
MEASUREMENT METHOD
Relative Phase (PAL)
/<9PR-B
Relative Phase (NTSC)
/ HNR-B
/ 6NG-B
Mute : O1
Uni-Color: 63
Others : Preset
(1) Input a 4.43MHz PAL rainbow color-bar
(300mVp.p, burst : chroma=1 : 1) with sync
into Pin 43.
(2) Observe the Pin 18 /19/20 output, measure
the R/G/B modulation angle (6pR/6p6/
t?rns) accoeding following figure and
equality.
6 w--.e w- t -15
P 0 an 1-A+,/7
Peak B
For f/PR ; Peak : 3rd bar, 60R=90
For flpts , Peak (Negative) : 4th bar,
606:240
For (lpie ; Peak : 6th bar, 603:0
(3) Calculate ;
"t9PR-B" = OR - 6P3
"0PG-B”=9PG -6PB
(4) Input a 3.58MH2 NTSC rainbow color-bar
(286mVp-p, burst : chroma=1 : 1) with sync
into Pin 43, then repeat (2), that is 3NR/
9NG/5NB-
(5) Calculate ;
''t?NR-B"=8NR-f?NB
"0NG-B" =5NG -8NB
1998-05-12 55/77
TOSHIBA
TB1231CN
APC Hold Range
(3.58MHz)
MF3APCH +
IAF3APCH -
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a 4.43MH2 PAL rainbow color-bar
(300mVp-p, burst : chroma=1 : 1) with
APC PulI-In Range sync into Pin 43.
(4.43MHa) (2) Set Color System to 010 (443PAL).
MF4APCP+ (3) For higher frequency than 4.43MHz,
/dF4APCP- measure the burst frequency at which Pin
29 DC level changes from low to high/
from high to low, that is F4Apcp+/
F4APCH +.
APC Hold Range (4) For lower frequency than 4.43MHz, repeat
(4.43MHz) (2), that is F4Apcp - IF4APCH -.
/AF4APCH+ (5) Calculate ;
/AF4APCH - "AF4Apcp + " = F4Apcp + -4433619
Color System : "AF4Apcp - " = 4433619 - F4Apcp -
C9 010/101 "AF4APCH + " = F4APCH + -4433619
Others : Preset "4F4APCH - " =4433619 - F4APCH -
APC Pull-ln Range (6) Input a 3.58MH2 NTSC rainbow color-bar
(3.58MHz) (286mVp-p, burst : chroma=1 : I) with
/AF3APCP+ sync into Pin 43.
/dF3ApCP- (7) Set Color System to 101 (358NTSC).
(8) For higher frequency than 3.58MH2, repeat
(2), that is F3Apcp+ /F3APCH +.
(9) For lower frequency than 3.58MHz, repeat
(10) Calculate ;
(2), that is F3Apcp_ /F3APCH -.
”AF3Apcp + " = F3Apcp + - 3579545
”AF3Apcp - " = 3579545 - F3Apcp -
"nF3ApCH + " = F3APCH + - 3579545
"4F3APCH - " = 3579545 - F3ApCH -
1998-05-12 56/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Connect Pin 43 to GND via a IPF capacitor.
(2) Set Color System to 010 (443PAL).
(3) Adjust Pin 10 voltage so that the Pin 29
output frequency is 4.433619MHz, that is
y'c.f.o.el, V4ApCCEN.
Sensitivity (4.43MHz) (4) Measure the Pin 29 output frequency when
/i3443 Pin 10 voltage is V4APCCEN +100mV/
V4APCCEN -100mV, that is F4APC + /
F4APc--
Color System : (5) Calculate ;
C10 010/101 "/3443" =(F4ApC+ -F4Apc-)/200
Others : Preset (6) Set Color System to 101 (358NTSC).
(7) Adjust Pin 10 voltage so that the Pin 29
output frequency is 3.579545MHz, that is
APC Control V3APCCEN-
Sensitivity (3.58MHz) (8) Measure the Pin 29 output frequency when
/i3358 Pin 10 voltage is V3APCCEN +100mV/
V3APCCEN -100mV, that is F3Apc +/
F3APC-.
(9) Calculate ;
"/3358" = (F3APC + - F3APc - ) / 200
PAL ID Sensitivity (1) Set ID SW to 0.
(Normal Mode) (2) Set Color System to 010 (443PAL).
/VPAL|DON (3) Input a 4.43MH2 PAL rainbow color-bar
/VpAL|DOFF (300m1/p-p, burst : chroma=1 : 1) with sync
PAL ID Sensitivity 4 LT" Pin e; b li d hi h Pi
(Low Mode) ID SW : 0/1 ( ) easure t e urst amp itu e at w 1c In
29 DC level changes from low to high/
[VPALIDLON Color System : from hi h to low that is "V "/
C11 /VPAL|DLOFF 010/101 "VPALIDgOFF" ' PALIDON
. . . M : 1 .
NTSC ”3' 59";'t'v'ty blue, . 23 (5) Set Color System to 101 (358NTSC).
(Norma Mo e) Others , Preset (6) Input a 3.58MH2 NTSC rainbow color-bar
/VNTOON . (286mVp-p, burst : chroma=1 : 1) with sync
/VNTIDOFF into Pin 43, and repeat (3), that is
NTSC ID Sensitivity "VNTIDON" / "VNTIDOFFH-
(Low Mode) (7) Set ID sw to 1, repeat (2) ' (6), that is
/VNTIDLON ''VPAuDLON'', ''VPALoLOFF'', "VNTIDLON":
/VNTIDLOFF "VNTIDLOFF"-
1998-05-12 57/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a 4.43MHz PAL color-bar (300mVp-p,
burst : chroma=1 : 1) with sync into Pin
ID Output Level 43.
C12 /VIDH All : Preset (2) Measure the center DC level of Pin 29
/VIDL output, that is "l/OH".
(3) Connect Pin 43 to GND via a IPF capacitor
and repeat (2), that is "VOL".
(1) Input a 4.43MHz NTSC color-bar with sync
into Pin 43.
SECAM ID Det. (2) 5::anceger 37/38 to GND Via a 0.1PF
C13 [Clurrent All : Preset (3) Pulling the current out of Pin 29, measure
SECAM the current at which a demodulated output
signal disappears at Pin 20, that is
"'SECAM"-
fsc Continuous Wave CW SW : 1 Measure the amplitude of Pin 29 output, that
C14 Output Level . " "
Others : Preset IS VCW .
Sub-Carrier Remain on (I) 1:33;: 1,e,e,1z ..'1ec,it'=T..ctovttr,rs nc
RGB Output Mute : OI . . p-pr . - . y
C15 /V Uni-Color: 63 into Pin 43.
IVSCR Others , Preset (2) Measure the amplitude of 4.43MHz signal
NSCG . at Pin 18/19/20, that is "VSCR"/"VSCG"/
SCB 'Nscis".
(1) Input a 4.43MH2 PAL rainbow color-bar
Half Tone : 1 i300myp.p, burst : chroma=1 : 1) with sync
Half Tone Mute . 01 into Pin 43.
C16 Characteristics for C . . (2) Set Half Tone to 1 and measure the
/G Uni-Color : 63 am litude of Pin 20 out ut that is V
HTC Others : Preset p p ' PBHTC.
(3) Calculate ;
"GHTc" = 20'tog (VPBHTC/ VPBOUT)
1998-05-12 58/77
TOSHIBA
TB1231CN
Text stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta =25°C)
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
V-BLK Pulse
?;CETK Level (1) Input a composite sync signal into Pin 43.
T1 All : Preset (2) Measure the DC level of V/H blanking
H-BLK Pulse . . . " " " "
Output Level period at Pin 20, that IS VVBLK / VHBLK .
/VHBLK
RGB Output Black (1) Input a OIRE Y signal with sync into Pin 43
T2 Level (OIRE DC) Color : O & 39. . .
/VBLACK Others : Preset (2) Measure P. DC level of picture period at
Pin 20, that IS "l/BLACK".
RGB Output White Uni-Color : 63 (1)|4n3pl;t 3ag100|RE Y signal with sync into Pin
T3 fslefngE AC) 82:; '.. greset (2) Measure the amplitude from O to 100IRE at
Pin 20, that is "VWHITEn-
(1) Input a OIRE Y signal with sync into Pin 43
Cut-Off Voltage . (2) Measure the DC level of picture period at
T4 Variable Range 20%: Off , 8/255 Pin 20 for B Cut-off : 255/0, that is
/AVCUT+ Others . Preset VCUTMAX/VCUTMIN-
/AVCUT_ . (3) Calculate ;
"AVCUT + " = VCUTMAX - VBLACK
"AVCUT - " = VCUTMIN - VBLACK
(1) Input a 100IRE Y signal with sync into Pin
43 & 39.
Drive Control Variable B Drive : 0/127 (2) Measure the amplitude from 0 to 100IRE at
T5 Range Uni-Color : 63 Pin20 for B drive 127/0, that is VDRMAX/
/GDR + Color 0 VDRMIN.
IGDR_ Others : Preset (3) Calculate ;
"GDR," =20*tog (VDRMAx/VWHITE)
"GDR-" =20*eog (VDRMIN/VWHITE)
(1) Input a 100IRE Y signal with sync into Pin
43 & 39.
:aBrféeControl Voltage (2) Decreasing the Pin 21 voltage, measure the
/VABCLH ABL Gain : 11 voltage at which Pin 20 output begins/
Uni-Color : 63 stops decreasing, that is VABCLH"/
T6 /VABCLL Color . 0 "v "
. ABCLL .
ACL G . Others '. Preset (3) Measure the minimum amplitude of Pin 20
am hat is V .
/GACL output, t ACLMIN
(4) Calculate ;
"GACL" = 20'tog (VACLMIN / VWHITE)
1998-05-12 59/77
TOSHIBA TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a OIRE Y signal with sync into Pin 43
(2) For ABL Point 00/01 /10/11, decreasing
. ABL Start Point : the Pin 21 voltage, measure the voltage the
fiat: Point 00/01 / 10/11 voltage at which Pin 20 output begins
ABL Gain : 11 decreasing, that is VABL1/VABL2/VABL3/
T7 NABLP1 Uni-Color ' 63 V
/VABLP2 ' ABL4.
/VABLP3 Color : 0 (3) Calculate ,
Others 2 Preset "VABLP0" =VABL1 -VABCLH
"VABLP1" =VABL2 -VABCLH
"VABLP2" = VABL3 - VABCLH
"VABLP3" =VABL4 -VABCLH
(1) Input a OIRE Y signal with sync into Pin 43
(2) For ABL Gain 00/01/10/11, measure the
ABL Gain ABL Gain : DC level of picture period at Pin 20 when
IVABLGO 00/01/10/11 Pin 21 voltage is VABCLL, that is VABLS/
T8 /VABLG1 Uni-Color 2 63 VABL6/VABL7/VABL8.
/VABLG2 Color 2 0 (3) Calculate ;
/VABLG3 Others I Preset "VABLGo" =VABL5-VBLACK
"VABLG1” =VABL6 - VBLACK
"VABLGZ" =VABL7 - VBLACK
"VABL63” = VABL8 - VBLACK
(1) Input a composite sync signal into Pin 43.
(2) Supply 2V to Pin 13.
(3) Input a signal of following figure into Pin
Analog RGB Dynamic PIN43
T9 Range RGB Contrast : 32
IDRTX Others : Preset n n n n n n
(4) Increasing the amplitude of Pin 16 input,
measure the amplitude at which the Pin 20
amplitude stops increasing, that is "DRTX".
1998-05-12 60/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a composite sync signal into Pin 43.
(2) Supply 2V to Pin 13.
Analog RGB (3) Input a signal of NOTE : T9 figure into Pin
Contrast Control 16.
Characteristic RGB Contrast : 32 (4) For RGB Contrest 63/32/0, meastire the
T10 /GTXCMAX amplitude of Pin 20 output, that IS
Others : Preset
/GTXCCEN VTXCMAX/VTXCCEN / VTXCMIN-
IGTXCMIN (5) Calculate ,
"GTXCMAX" = 20*fog (VTXCMAX/ 0.2)
"GTXCCEN" = 20*fog (VTXCCEN / 0.2)
"GTXCMIN" = 20*fog (VTXCMIN / 0.2)
Analog RGB (1) Supply 2V to Pin13.
Brightness Control (2) Connect Pin 16 to GND via a 0.1PF
T11 Characteristic Brightness : 0/64/127 capacitor.
/VTXBRMAX Others : Preset (3) For Brightness 127/64/0, measure the DC
/VTXBRCEN level of picture period at Pin 20, that is
/ VTXBRMIN "VTXBRMAX" / "VTXBRCEN" / ''VTXBRMIN''.
(1) Input a composite sync signal into Pin 43.
Analog RGB Mode RGB C nt ast 32 (2) Il"" a signal of NOTE : T9 figure into Pin
. . o r : .
S tch n Le el
T12 [17' I g V Others : Preset (3) Increasing the Pin 13 voltage, measure the
YS voltage at which the signal inputted into
Pin 16 appears at Pin 20, that is 'NYS".
(1) Input a 50IRE Y signal with sync into Pin 43
(2) Connect Pin 16 to GND via a 0.1PF
capacitor.
(3) According to following figure, measure the
Analog RGB Mode Transfer Characteristic
Analog RGB Mode
Transfer Characteristic 20ps 20ps
/rR - 20ns 20ns
T13 ltPIIYSS All : Preset Input Signal
/cFys 50% ------------ - ----------- - ------------
ltPFYS
tPRys tPFys
100% - ___________ -
90% ----------.-------------------------
50% -------- + ____________ ' -------
10% -_--__-_-__- + -___---____- ' -------
0% ______________ I" F ________
TRYS! I I I TFYS
1998-05-12 61/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a composite sync signal into Pin 43.
(2) Connect Pin 39 to GND via a IPF capacitor.
(3) Input a signal of following figure into Pin
Cross Talk from Uni-Color : 63
T14 Analog RGB to TV RGB Contrast : 63
/CTTX-TV Others : Preset
(4) Measure the amplitude of 4MHz signal at
Pin 20, that is VTX-TV.
(5) Calculate ;
"CTTX-TV" = 20*fog (VTX-TV/O-S)
(1) Input a 4MHz, 0.5Vp-p Y signal with sync
into Pin 43 & 39.
Cross Talk from TV to . (2) Connect Pin 16 to GND via a 0.1PF
Analog RGB Uni-Color 2 63 capacitor. .
T15 /CTTV TX RGB Contrast : 63 (3) Supply 2V to Pin 13.
- Others : Preset (4) Measure the amplitude of 4MHz signal at
Pin 20, that is I/TV-TX.
(5) Calculate ;
"CTTV-TX” = 20*tog (VTV-TX/o-S)
(1) Connect Pin 29 to GND via a 5.1kQ resistor.
SECAM Black (2) For B-Y/R-Y Black Adj. : 8, measure the
Level Adj. DC level of picture period at Pin 20/18,
Characteristics that is VSECBCEN/VSECRCEN-
/VSECBMAX (3) For B-Y Black Adj. : 0/15, measure the DC
/VSECRMAX Color System : 111 level change of picture period against
/VSECBMIN B-Y Black Adj : VSECBCEN at Pin 20, that is "VSECBMINU/
T20 /VSECRMIN 0/8/15 "VsEcBMax''.
R-Y Black Adj : (4) For R-Y Black Adj. : 0/ 15, measure the DC
SECAM Black 0/8/15 level change of picture period against
Level Adj. VSECRCEN at Pin 18, that is "VSECRMINH/
Data Sensitivity "VSECRMAXII-
IAVSECB (5) Calculate ;
MVSECR "AVSECB" = (VSECBMAX -VSECBMIN)/ 16
"AVSECR" = (VSECRMAX 'VSECRMIN) / 16
1998-05-12 62/77
TOSHIBA
TB1231CN
DEF stage (Unless otherwise specified, Vcc=9V (3, 17, 28 & 52pin)/5V (36 & 46pin), Ta =25°C)
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
AFC Inactive Period (1) tnpute 50Hz/60Hz composite sync signal
D1 /T All . Preset into Pin 43.
,TSOAFCOFF . (2) Measure "T50AFc0FF"/ "TSOAFCOFF" at Pin
60AFCOFF 40. (cf. Fig.D1)
(1) Let Pin 3/17/52/36/46 be open.
D2 H-OUT Start Voltage All : Preset (2) Increasing Pin 28 voltage, measure the
/VHON voltage at which H OUT pulse appears at
Pin 32, that is "l/HON".
(1) Measure tHOUT1 & tHOUT2 at Pin 32.
D3 H-OUT Pulse Duty All : Preset tHOUT1 ‘HOUTZ
/WHOUT
(2) Calculate ,
"WHOUT" =tHOUT1/(tHOUT1 +tH0UT2) *100
H-OUT Freq. on AFC . (1) Input a 50Hz composite sync signal into Pin
D4 Sto Mode AFC Gain : 11 43.
p Others : Preset (2) Measure the H OUT frequency at Pin 32,
/FHAFCOFF . " "
that IS FHAFCOFF .
Horizontal Free-Run
D5 Frequency V-Freq : 10/11 For V-Freq 10/11, measure the H OUT
/FH50FR Others : Preset frequency at Pin 32, that is 'TH50FR"/"FH60FR"
/ FH60FR
(1) Connect Pin 40 to VCC via a 10kQ and
Horizontal Freq. measure the H OUT frequency at Pin 32,
Variable Range that is "FHMAX".
D All : P . .
6 /FHMAX reset (2) Connect Pin 40 to GND Via a 68kQ and
/FHMIN measure the H OUT frequency at Pin 32,
that is ''FHMIN''.
(1) Measure the Pin 40 voltage at which H OUT
frequency is 15.734kHz, that is VH15734.
Horizontal Freq. (2) Measure the H OUT frequency when Pin 40
D7 Control Sensitivity All : Preset voltage is VH15734+50mV/VH15734-50mV,
IBHAFC that is FHHIGH/FHLOW-
(3) Calculate ,
13HAFC" = (FHHIGH - FHLow) / 100
1998-05-12 63/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a composite sync signal into Pin 43.
(2) Decreasing the horizontal frequency from
17kHz, measure the frequency at which H
OUT synchronized with Sync Out (Pin 31),
Horizontal Pull-in that is FHpH.
Range . (3) Increasing the horizontal frequency from
D8 /AFHpH All . Preset 14kHz, measure the frequency at which H
IAFHPL OUT synchronized with Sync Out (Pin 31),
that is FHPL.
(4) Calculate ;
"AFHPH" = FHPH - 15734
"AFHPL" = 15625 - FHPL
. I I f H T Pi 2,
H-OUT Voltage (1)ltft'1';rtvt2,i1h" eve o ou at in3
D9 xHOUTH All : Preset (2) Measure the Low level of H OUT at Pin 32,
HOUTL that is "1/HOUTL".
Horizontal Freq. (1)ihs/"rgr/e9.t,',t ELSE; ',:CCCrlcy:, en CC
D10 Dependence on VCC All : Preset . . ' HVCCH HI/CCL.
IAF (2)Calculate ;
HVCC "AFchc" = (FHVCCH - FHVCCL)/ 1
(1) Input a composite sync signal into Pin 43.
(2) According to the following figure, measure
FBP Phase "PHFBP" & 'THHSYNC".
/PHFBP
63.5ps
Sync In a-- "-4.7ps 0.25V
D11 All : Preset (f43) I
H-Sync. Phase (#40)
IPHHSYNC - PHHSYNC
FBP IN I
1998-05-12 64/77
Even Field ——‘—-0dd Field
307M 308H 3051-! 310K 31lH 3|2H§ 1H 2H 3H 4H SH 6H
7H 8H 9H 10H 11H 12H 13H 11H 15H 16H 17H 18H 19H 20H 21H 2214
pianignaI l-T-r
307“ 3081-4 3091-!
TSOAFCOFF
Odd Field —-§- Evvn Field
312H 313“: IN 1H 5H M 5H
HHH'HYHHH
6H 7H 8H 9H 10H 11H 12H 13H 14H 15H 16H 17H 18H 19H 20H 21H
..-._-
Pin 40 Signal v
259H 260H
; TSDAFCOFF
Even raw—Q-wdd mm
1H 2H 3H IH 5H 5H 7H
HHHVHH
8H 9H IOH 11H 12H 13H 14H 15H 16H ”N 1BH 19H 20H 21H 22H 23H 14H
llllHLflJUUUUIIII
PIIHO Slqnel y y
ZGOH 261M
‘—_:—— TGOAFCOF F
Odd Field‘t—E—vaen Field
253" m 2H 3H AH 5H 6H 7H
EH 9H 10H 11H '12H 13H ‘14H ISH 16H 17H 18H 19H 20H 21H 22H 23H
Pm IO Signal
T81231CN — 65
1998-05-12 65/77
TOSHIBA
TB1231CN
TOSHIBA
TB1231CN
NOTE ITEM /SYMBOL
BUS CONDITION
MEASUREMENT METHOD
Horizontal Position
D12 Variable Range
H Position : 0/31
(1) Input a composite sync signal into Pin 43.
(2)Changing Horizontal Position from 0 to 31,
measure "nPHHpos" according to the
following figure.
Clamp Pulse Width
Others : Preset I
/APHHPOS FBP IN
(f30) - - APHHPOS
AFC-il Pulse (1) Input a'composite T" signal into Pin 43.
D13 Thresh Id Level All . Preset (2) Decreasing the FBP high level, measure the
/V O . DC level at which H OUT phase changes
AFC2 against Sync Out phase, that is ''VAFC2".
H-BLK Pulse (1) Input , composite y.'", signal into Pin 43.
D14 Threshold Level All . Preset (2) Increasing the FBP high level, measure the
/V . DC level at which H blanking begins to
HBLK work, that is "VHBLK".
(1) Input a composite sync signal into Pin 43.
(2)According to the following figure, measure
"PHBPDET" & "WBPDET".
63.5 s
Black Peak Det. Sync IN " Tvs o.25v
D15 Stop Period (H) TEST : 00001000 W3)
/PHBPDET Others : Preset
/WBPDET (#40)
"-PHBPDET
SCP OUT
(#34) WBPDET_‘ -
(1) Input a composite sync signal into Pin 43.
(2)According to the following figure, measure
Clamp Pulse Start PHCP & WCP .
Phase 63.5,us
TEST : 00001000 mg)“ ms 0.25v
D16 V Position : 001
Others : Preset
PHCP WCP-'" Il-- 43V
SCP OUT
1998-05-12 66/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Input a composite sync signal into Pin 43.
(2) According to the following figure, measure
IIPHGP" 8 "u/tsp''.
Gate Pulse Start Phase
/PHGP 63.5ps
Sync IN -
(#43) - "-4.7ps 0.25v
D17 All : Preset
Gate Pulse Width PHGP WGP” - 9V
/WGp SCP our 6V
Sync. Output Low (1) Input a composite sync signal into Pin 43.
D18 Level All : Preset (2) Measure the DC voltage of Sync Out low
/VSYNCL level, that is "VSYNCL"-
Vertical Oscillation (1) Let ''in.3/1_7./?1/36../46 be open.
(2) Increasing Pin 28 voltage, measure the
D19 Start Voltage All : Preset . .
/V voltage at which V Ramp signal appears at
VON Pin 22, that is "VVON".
Vertical Free-Run
D20 Frequency V-Freq : 00/01 For V-Freq 00/01, measure the frequency of V
/FVAUFR Others : Preset Ramp at Pin 22, that is "FvAUFR"/"Fu60FR".
/ FV60FR
Gate Pulse V-Masking (1) Input a 50Hz/60Hz composite sync signal
Period into Pin 43.
D21 All : P .
/T50GPM reset (2) Measure "T50GPM"/"T60GPM" at Pin 34.
/T606PM (cf. Fig.D21)
V.Ramp DC on Service MUTE : 11 Measure the DC level of Pin 22, that is
D22 Mode Others . Preset "V "
1998-05-12 67/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
. . (1) Input a composite sync signal into Pin 43.
Vertical Pull-in Range (2) For V-Freq 00/01, increasing the input
I?Uto) vertical period from 220H by 0.5H step,
VPAUL measure the period at which V OUT signal
/FVPAUH synchronized with Sync out, that is
V-Freq 200/01 " " n n
D23 . FVPAUL / FVP60L .
Others . Preset (3) For V-Freq 00/01 decreasing the input
Vertical Pull-ln Range . . '
(60Hz) vertical period from 36OH ly 0.5H step,
/FVP60L measure the period at which V OUT signal
/F synchronized with Sync out, that is
VP60H "F " / "F ".
VPAUL VPEOL
Vertical Period on
D24 Fixed Mode V-Freq : 10/11 For V-Freq 10/11, measure the vertical period
/TV313 Others : Preset at Pin 34, that is "Tvit63"/"Tu3o3".
/Tv263
V-BLK Start Phase
/PH50VBLK (1) Input a 50Hz/60Hz composite sync signal
D25 /PH60VBLK All . Preset into Pin 43.
V-BLK Width . (2) Measure "TSOAFCOFF"/"T60AFCOFF" at Pin
/W50VBLK 40. (cf. Fig.D25)
/W60VBLK
(1) Input a 50Hz/60Hz composite sync signal
into Pin 43.
(2) According to a following figure, measure
”WSOPM" / "W60PM".
D26 7w:g:MM”te Period TEST : 00001000 I I I I II
Others : Preset - 4.3V
/W60PM
-"-Vil5typM, WSOPM -
1998-05-12 68/77
LL/69 Z L'SO'866I.
69 " NDIEZLEL
LZCI '55
Inuflm new
‘wamé;
H5 F? H5
Iwfils re um
HGSZ HBSZ
HLQI H09!
IIHinl
H91 H51 HVI HSL
HDZ HSL
H92 HS? HVZ H22
..—a—.pa
PW! PRO
130555 DE "H
“="“"‘
H806 "L02
HHE HOLE H602
H5! Ht! HR "22 H1! H0! H6l HE; HLI. HM HSL Hvl H51 HZL HlL Hm H6 H9 Ht H9 H9
Pllli FPO
Plali “Ma
mm; vs UM
PIIH 05"?
FIUH FPO
NDLEZLSL
VEIHSOJ.
1998-05-12 70/77
SOHZ ' Even FieId—-£—-Odd Field
1H 2H 3H AH 5H 6H 7H RH 9H 15H 11H 11H 13H 14H ISH 16H 17H 18H |9H 20H 21H 21H 23H 24H 25H 26H
307“ 308}! 30% 3TDH 31'IH 312H
Pin?! signal
odd Field «2—» Even Field
307M 301“»! 309H ZIDH 31‘IH 312” 313“ 1 1H 2H 3H 1H 5H 6H 7H 8H 9H 10H ‘HH 12H 13H 14H 15” IEH 17H 13H 19H 10" 11H 2
Pln34 Signal
WSOVBLK
60H: Even
258H 259H ZGCH ISIH 5 3H LH 5H 6H 7H v.8}! 9H 10H 11H 12H 13H 14H 15H 16H 17H 18H 19H 20H 21H 22“ BR 24H 25" 263i 27H 28H
Pln 34 Signal
ow Field +9“ Held
259H ZSUH ZEIH ZEZH 263M? IH 2H 3H 6H SH SH 7H '8H '9H 10H 11H '12H 13H |‘4H 15H 16H 17H 18H 19H
—- P{‘sovam,
Pin 34 Signal
I I I i i 'Waovauc
Fig. 025
TB1231CN — 7G
TOSHIBA
TB1231CN
TOSHIBA
TB1231CN
NOTE ITEM /SYMBOL
BUS CONDITION
MEASUREMENT METHOD
Sand Castle Pulse
Measure "VscPH"/"VscPM"/"VscPL'' at Pin
Vertical Amplitude
Variable Range
V Size : 0/32/63
Others : Preset
Level VSCPH
D27 /V All : P
SCPH reset VSCPM
/VSCPL Vsch
Vertical Ramp . .
D28 Amplitude All : Preset relisme theHV Ramp amplitude at Pin 22, that
/VVRAMP VRAMP .
. . (1) Let Pin 24 be open.
Vertical AMP Gain (2) Changing the Pin 23 DC voltage, measure
/ GVAMP "VVOMAX" / "VVOMIN" / "GVAMP"
according to a following figure.
Vertical AMP Max. #23 DC
D29 Output Level All : Preset
/Vv0MAx
VVOMAX ............................
AV It/gn A
Vertical AMP Min. =20 og( “W Vg24)
Output Level V
/1/VOMIN V0MIN #24 DC
Vertical AMP Max. (1) Supply 7V to Pin 23.
D30 Output Current All : Preset (2) Measure the Current from Pin 24 to GND,
“VOMAX that is "IVOMAxn-
. (1) Measure the amplitude of NFB V Ramp at
Vert'éa' NFB Pin 23, that is "VNFB".
Amplitude (2) Measure the amplitude of NFB V Ramp at
/VNFB Pin 23 for V-Size 0/63, that is VNFBMIN/
VNFBMAX-
(3) Calculate ,
"AVVRAMPH" = (VNFBMAX - VNFB)/
/AVVRAMPH VNFB*100
IAVVRAMPL AVVRAMPL = (VNFBMIN 'VNFB)/
VNFB*100
1998-05-12 71/77
TOSHIBA
TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) For V linearity 8, Measure V1 (From center
to max.) and V2 (From center to min.) at
Pin 22 according to a following figure.
- L___________ Pin22 Signal
Vertical Linearity E l
Variable Range V2 l E
D32 /d1/LIN1+ v Linearity : 0/8/15 - - ',,' ,' '
IAVL|N1 - Others : Preset
/AVLIN2 +
/AVLIN2 -
(2) For V linearity 15/0, measure VLIN1+ /
VLIN1- and VLIN2 + / VLIN2 -.
(3) Calculate ,
"AVLIN1+"=(VLIN1+ -V1)/V1*100
"AVLIN1 -" =(VLIN1 - -V1)/V1*100
”AVLIN2 + " = (VLIN2 + -V2) /V2*100
”AVLINz - " = (VLIN2 - -V2) /V2*100
(1) For V s Correction : 8, measure V1 and V2
at Pin 22 according to a figure of NOTE :
Vertical S Correction D32.
Variable Range (2) For V s Correction : 15/0, measure V51 + /
D33 [AVS1+ VS Corr. : 0/8/15 VSI- and I/site/Vp-.
/AV51_ Others : Preset (3) Calculate ,
/4V52+ "AVs1+"=(Vs1+ -V1)/V1"’100
MI/Sa- ''z11/s1-''--(Vs1- -V1)/V1*100
'UI/sa + " = (V52 + - V2) /V2*100
"nl/sa - " = (V52 - - V2) /V2*100
1998-05-12 72/77
TOSHIBA TB1231CN
NOTE ITEM/SYMBOL BUS CONDITION MEASUREMENT METHOD
(1) Connect Pin 25 to GND via a 200 resistor.
(2) For V-AGC : 0/1, measure VVAGCL/
V-AGC Current - . VVAGCH at Pin 25 according to a following
D34 H V-AGC:0/1 .
VAGCH Others : Preset figure.
“VAGCL (3) Calculate ,
"|VAGCL" = VVAGCL/ 200
”IVAGCH" = VVAGCH / 200
Vertical Guard Decreasing the Pin 23 voltage from 5V,
D35 Voltage All : Preset measure the voltage at which Pin 20 output
/VVG drops to blanking level, that is "l/VG".
(1) Input a C-sync into TV- IN/C (43pin).
Video SW : 01 (2) Measure Tvgy.
Vertical posmo'n. : 010 43Pin C-sync input
Horizontal position : l-l ;
V Integral constant 10000
D36 /TVSY TEST MODE : W T Pul 5
00001000 outSLtESt "e-i-l,
(34pm : TEST pulse _J TVSY 'U-
output) l !
1998-05-12 73/77
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TEST CIRCUIT 2
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1998-05-12 75/77
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