Toshiba 43VS9UA Quick start guide

SCHEMATIC DIAGRAM
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY
PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL.
CAUTION: The international hazard symbols "*" in the schematic diagram and the parts list designate components
which have special characteristics important for safety and should be replaced only with types identical to those in the
original circuit or specified in the parts list. The mounting position of replacements is to be identical with originals.
Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE on the MANUAL for this
model. Do not degrade the safety of the receiver through improper servicing.
NOTE:
1. RESISTOR Resistance is shown in ohm [K = 1.000, M = 1.000.000]. All resistors are 1/6W and 5%
tolerance carbon resistor, unless otherwise noted as the following marks.
1/2R = Metal or Metal oxide of 1/2 watt 1/2S = Carbon compsistion of 1/2 watt
1RF = Fuse resistor of 1 watt 10W = Cement of 10 watt
K = ±10% G = ±2% F = ±1%
2. CAPACITOR Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in
?F, and the values more than 1 in pF.
All capacitors are ceramic 50V, unless otherwise noted as the following marks.
Electolytic capacitor Mylar capacitor
3. The parts indicated with " *" have special characteristics, and should be replaced with identical parts only.
4. Voltages read with DIGITAL MULTI-METER from point indicated to chassing ground, using a color bar signal with all
controls at normal, line voltage 220 volts.
5. Waveforms are taken receiving color bar signal with enough sensitivity.
6. Voltage reading shown are nominal values and may vary ±20% except H.V.
MODEL : 43VS9UA/E/T / 50VS9UA/E/T
–74 –
SCHEMATIC DIAGRAM STRUCTURE:
SIGNAL Circuit OTHERS [ SHEET - 1/9 ] ........ 1/20
AV [ SHEET - 2/9 ] ........ 2/20
SOUND [ SHEET - 3/9 ] ........ 3/20
IF [ SHEET - 4/9 ] ........ 4/20
M-CON [ SHEET - 5/9 ] ........ 5/20
FEP / V-OUT OTHER [ SHEET - 6/9 ] ........ 6/20
D-CONV [ SHEET - 7/9 ] ........ 7/20
REGU-OUT [ SHEET - 8/9 ] ........ 8/20
3DYCS / OTHER [ SHEET - 9/9 ] ........ 9/20
DEF / CONV. Circuit (1/3) [ SHEET - 1/3 ] ...... 10/20
(2/3) [ SHEET - 2/3 ] ...... 11/20
(3/3) [ SHEET - 3/3 ] ...... 12/20
BEP Circuit ............................................................................................................ 13/20
DPC Circuit ........................................................................................................... 14/20
POWER Circuit ..................................................................................................... 15/20
CRT-D(for HD) / SVM Circuit (1/2) [ SHEET - 1/2 ] ...... 16/20
(2/2) [ SHEET - 2/2 ] ...... 17/20
SRS-WOW Circuit ................................................................................................. 18/20
FRONT-IN / RMT-IN Circuit .................................................................................. 19/20
M-TEXT-P2 Circuit ................................................................................................ 20/20

ANT
E1 SYNC-AV
AV Switch
CXA2069Q
Y/Cb/Cr
SW
Y Cb Cr
Y Cb Cr
Y Cb Cr YUV
Y Cb Cr
Noise
UP Converter
HD/VD
HD
VD
Y
YCYC
C
RGB
Multi Color Decoder
Micro Processor
CLK,DATA,CS,BUSY,RST
EEP ROM
3D YCS
TC90A65F
3L Comb
Filter
TDA9181T
Front End
Processor
TA1318N
D.CONV
RGB
Audio
Processor AUDIO AMP
AMP HEADPHONE JACK
VIDEO OUT
RGB
RGB
RGB Processor
TA1360AN
V-OUT
V-OUT
Multi
Window
Picture
Improver
TDA9178T
C-OUT
V-OUT2
SDA9589X
HD
VD
SCP
H
SYNC
VP
AFC
SVM
VIDEO OUT
SVM
VIDEO OUT
SVM
Q302 Q301
V OUT
FBT
Q750,Q751,Q753
CONVER OUT
D CONVER
AFC
AFC
Q404
H OUT
Q460
E/W
CORRECTION
DPC OUT
E2
E3
C2
C4
TUNER
with
antenna
SUB
TUNER
IF MPX
Module
IF Module
SPEAKERS
CRT
CRT
CRT
R
G
B
TEXT
Q831
5V-2
Q832
5V-3
Q830
9V-1
Q836
9V-2
DEF/CONV
E7
POWER
Q801
STR-Z4479
SR80
SR81
R820,
R821
D803
Higher harmonic circuit
T862
TPW3516AS
E-16
E32
E41
E120
E-32
E16
E11
DEF/CONV
DEF/CONV
DEF/CONV
AUDIO
DEF
X-REY
AMP
Z801
Q862
Q861TPW3517AH
T860
SUB POWER
E5-1
RESET
+
CIRCUIT BLOCK DIAGRAM
– 75 – – 76 –

SIGNAL(OTHERS)
[SHEET-1/9]
50VS9UA/UE/UT
43VS9UA/UE/UT

0
0
0
3.6
9
4.3
0
0
0
4.0
3.3
4.0
3.3
0
9
0
0
3.3
3.3
4.0
4.0
5.2
5.2
0
5.2
5.2
0
5.2
5.2
0
5.2
4.5
4.5
0
4.1
4.1
9.0
4.1
5.2
4.1
5.2 5.2 4.1
3.9
0
4.1 4.1
0
0
9.0
0
0
9.0
0
0
0
9.0
[SHEET-2/9]
50VS9UA/UE/UT
SIGNAL(AV)
43VS9UA/UE/UT

12.0
9.0
190.70.71.0 0 191.0 19 000
36.0
[SHEET-3/9]
SIGNAL(SOUND)
50VS9UA/UE/UT
43VS9UA/UE/UT

4.2 4.2 5.0 32.0 0 9.0 5.0 4.2
4.24.2 32.05.0 9.0 0 0
4.2 0
04.3 4.3
5.0 32.0
9.000
[SHEET-4/9]
SIGNAL(IF)
50VS9UA/UE/UT
43VS9UA/UE/UT

[SHEET-5/9]
SIGNAL(M-CON)
50VS9UA/UE/UT
43VS9UA/UE/UT
5.0
4.5
4.5
fH
5Vp-p
4.5
4.3
4.5
5.0
4.7
5.0
5.0
4.2
4.2
0
4.5
4.5
0
5.0
0
5Vp-p SDA
0
5Vp-p SCL
4.5
4.5
2.0
5.0
4.5
4.5
5.0
4.5
4.5
5.0
5Vp-p
5Vp-p
fV
SDA
SCL
5Vp-p

SIGNAL(FEP/V-OUT OTHER)
50VS9UA/UE/UT
43VS9UA/UE/UT
[SHEET-6/9]
5ms/div
10V/div
GND
7V
16.6ms
58V
25V
-16.0 19.0
0
9.0
0
4.5
4.5
0
GND
5ms/div
10V/div
75V
55V
16.0 0.8 16.00.9 2.0
5ms/div
2V/div 8V
9.6V
16.6ms
GND

4.5
0
5.0
5.0
5.0
0
4.54.5 4.5
0
[SHEET-7/9]
SIGNAL(D-CONV)
50VS9UA/UE/UT
43VS9UA/UE/UT

ANT-GND
[SHEET-8/9]
SIGNAL(REGU-OUT)
50VS9UA/UE/UT
43VS9UA/UE/UT

SIGNAL(3DYCS/OTHER)
[SHEET-9/9]
50VS9UA/UE/UT
43VS9UA/UE/UT

43VS9UA/UE/UT
50VS9UA/UE/UT
DEF/CONV.(1/3)
[SHEET-1/3]

08.5 8.08.5
9.0 8.27.4
7.4
9.0 8.2
8.5 8.5 8.0 0
15.0
0
0
11.9
-17.6
-17.6
126
[SHEET-2/3]
DEF/CONV.(2/3)
43VS9UA/UE/UT
50VS9UA/UE/UT

5.0
-5.0
-5.0
5.0
-32.0
0032.0 -16.0 -16.0-16.0
0 -16.032.0
0-32.0 -16.0 -16.0
[SHEET-3/3]
DEF/CONV.(3/3)
43VS9UA/UE/UT
50VS9UA/UE/UT

BEP
50VS9UA/UE/UT
43VS9UA/UE/UT
3.4V(p-p) (H)
3.5V(p-p) (H)
0.9V(p-p) (H)
5.6
3.0 0
0 2.5 2.5
6.6 6.3 2.4
2.7 00 003.5 3.5 3.5
7.3
9.1 5.7 1.5 1.3
4.8
4.8
0
4.7
0.1
03.3
3.6V(p-p) (H)
0.53V(p-p)
0.75V(p-p) (H)
(H)
0.78V(p-p) (H)

4.5
4.5
5.0
0
0
5.0
5.0
0 12.0
0
0
16.0
-16.0
9.0
4.5
3.5V(p-p)(V)
4.5
0
3.1
3.4
4.7
2.9
1.1
3.4
0
9.4
5.5
0.8
1.2V(p-p)(V)
3.2
43VS9UA/UE/UT
50VS9UA/UE/UT
DPC

50VS9UA/UE/UT
43VS9UA/UE/UT
POWER
3.6
0
156.7 2.30 6.1 5.8 5.9
BWL5µs
50
50
3
4
1
2
mV AC
mV AC
5V
5V
10
10
DC
DC
5µs
2
50V
1
5µs
1
50V
2
1 AC 0V
2
T862
12
10
Q801
14
5.4
0
120.7
119.7
125.3
124.9 119.0
6.0 0 0
24.7
0
22.0
0 5.0 4.9 0
2
7.70.3 17.8 0.8 78.3 085.4
1

[SHEET-1/2]
CRT-D(for HD)/SVM(1/2)
43VS9UA/UE/UT
50VS9UA/UE/UT
2.7
8.6
3.2
8.9
9.3
114
9.2
2.1
8.3
2.6
167.0
9.5
0V
10V
220V
1H
1H
110V
0V
220V
2.9
2.3
8.0
9.5
9.2
148
220V
50V
0V
1H

5.0
0
4.8
5.4
5.1
0.5
0.8
119.1
61.9
61.9
119.3
6.1
5.4
10.6
10.6
0
4.8
5.0
5.4
5.1
6.1
5.4
10.6
10.6
0.5
0.8
61.9
119.1
61.9
119.3
8.9
0.8
1.5
0.8
0.1
6.0
10.6
5.4
6.0
4.8
0
5.0
5.4
5.4
6.1
10.6
5.1
10.6
0.5
61.9
0.8
119.3
61.9
119.1
[SHEET-2/2]
CRT-D(for HD)/SVM(2/2)
50VS9UA/UE/UT
43VS9UA/UE/UT

12.0 0
3.9
3.9
12.0
6.0
6.0
0
0
0
0
6.0
6.0
6.0
6.0
6.0
6.0 6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
0
0
0
6.0
0
0
6.0
0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
0
0
0
5.1
43VS9UA/UE/UT
50VS9UA/UE/UT
SRS-WOW