Toshiba 43VS9UA /E/T, 50VS9UA /E/T Schematic

SCHEMATIC DIAGRAM

MODEL : 43VS9UA/E/T / 50VS9UA/E/T

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.

SCHEMATIC DIAGRAM STRUCTURE:

SIGNAL Circuit OTHERS [ SHEET - 1/9 ] ........ 1/20

DEF / CONV. Circuit (1/3) [ SHEET - 1/3 ] ...... 10/20

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

SRS-WOW Circuit ................................................................................................. 18/20

FRONT-IN / RMT-IN Circuit .................................................................................. 19/20

M-TEXT-P2 Circuit ................................................................................................ 20/20

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

(2/3) [ SHEET - 2/3 ] ...... 11/20

(3/3) [ SHEET - 3/3 ] ...... 12/20

(2/2) [ SHEET - 2/2 ] ...... 17/20

– 74 –

ANT

TUNER
with
antenna

SUB
TUNER

E1

E2

E3

C2

IF MPX
Module

IF Module

SYNC-AV

AV Switch
CXA2069Q

V-OUT

V-OUT

C-OUT

V-OUT2

CIRCUIT BLOCK DIAGRAM

Micro Processor

EEP ROM

3D YCS
TC90A65F

3L Comb
Filter
TDA9181T

YCYC

Multi Color Decoder

Y

C

Multi
Window

SDA9589X

RGB

Y Cb Cr

Y Cb Cr

CLK,DATA,CS,BUSY,RST

TEXT

Front End
Processor
TA1318N

HD
VD

D.CONV
RGB

RGB

RGB Processor
TA1360AN

HD
VD
SCP

Y Cb Cr YUV

SYNC

H

VP

Audio
Processor

RGB

AFC

AUDIO AMP

AMP

VIDEO OUT

SVM

VIDEO OUT

SVM

VIDEO OUT

SVM

SPEAKERS

HEADPHONE JACK

CRT

R

CRT

G

CRT

B

SR80

R820,
R821

SR81

D803

Higher harmonic circuit

C4

Y/Cb/Cr
SW

Q801
STR-Z4479

+

T862
TPW3516AS

E7

E11

E16

E-16
E32

E-32
E41

E120

AMP

POWER

Z801

Q831
5V-2

Q832
5V-3

Q830
9V-1

Q836
9V-2

DEF/CONV

DEF/CONV

DEF/CONV

DEF/CONV

AUDIO

DEF

X-REY

Picture
Improver
TDA9178T

Y Cb Cr

Noise

UP Converter

HD/VD

Q302

E/W
CORRECTION

Q460

DPC OUT

AFC

D CONVER

Q301

V OUT

Q404

H OUT

Q750,Q751,Q753

CONVER OUT

FBT

AFC

T860
SUB POWER

Q862

Q861TPW3517AH

E5-1

RESET

– 75 – – 76 –

43VS9UA/UE/UT
50VS9UA/UE/UT
SIGNAL(OTHERS)

[SHEET-1/9]

5.2

5.2 5.2 4.1

5.2

5.2

5.2

0

0

3.9

4.1

4.1

0

9.0

4.1

5.2

4.1

9.0

4.1

0

5.2

5.2

5.2

0

4.0

3.3

4.0

3.3

0

0

0

0

9

4.3

3.6

0

0

9

4.0

3.3

4.0

3.3

4.1

0

4.5

4.5

0

9.0

0

0

9.0

0

0

0

0

0

0

43VS9UA/UE/UT
50VS9UA/UE/UT
SIGNAL(AV)

[SHEET-2/9]

12.0

36.0

190.70.71.0 0 191.0 19 000

9.0

43VS9UA/UE/UT
50VS9UA/UE/UT

SIGNAL(SOUND)

[SHEET-3/9]

4.24.2 32.05.0 9.0 0 0

5.0 32.0

04.3 4.3

9.000

4.2 4.2

5.0 32.0 0 9.0 5.0 4.2

4.2

0

43VS9UA/UE/UT
50VS9UA/UE/UT
SIGNAL(IF)

[SHEET-4/9]

5Vp-p

SCL

5Vp-p

SCL

5.0

0

4.5

4.5

4.5

4.5

5.0

0

0

2.0

4.5

4.5

5Vp-p

SDA

5.0

4.3

5.0

4.5

4.5

5.0

5.0

4.5

4.5

0

5Vp-p

SDA

4.2

4.2

5.0

5.0

4.7

4.5

4.5

fV

5Vp-p

fH

5Vp-p

43VS9UA/UE/UT
50VS9UA/UE/UT

SIGNAL(M-CON)

[SHEET-5/9]