Toshiba 20A22 Service Manual page 20

A B
8
RED LED
POWER ON
7 D105
R135
270
SLR-342VCT32
OS101
RPM7138-H5
6
R140
10 1/4W
TO SOUND
AUDIO_MUTE
GND R125
2.2K
5 R138
2.2K
R112
2.2K
R113
2.2K 1/4W
FROM/TO DEFLECTION/CRT R115
47K 1/4W
X-RAY
X-RAY_TEST
R146
10K
4
R114
10K 1/4W
3
2
1 NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
C D
MICON/TUNER SCHEMATIC DIAGRAM
R002
R101 R126
100
560 2.7K
R128
560
R107
47K 1/4W
MICON IC IC101 OEC7072A
5.02
0.03
AUDIO MUTE H_CTL
0.04 0.010
EXT_MUTE PROTECT
R109
0.04 5.00
STANDBY_H
I2C_OFF
47K
R139 100 1/4W
0.04 0.78
VOLUME SYNC
2.2 4.17
AFT H.SYNC
3
5.02 4.89
KEY1 V.SYNC
4
5.02
0
KEY2 BLUE B
0
0
X-RAY GREEN G
R131 5
0
REMOCON RED R
100
5.06 0
TRAP_OFF(ON_TIMER) BLANK
0 5.02
X-RAY_TEST CLOCK CONT
0
W899 S802X 4.92
NC AV2 SDA1
0
0.66
NC AV1 SCL1
5.02
0
DEGAUSS_H
POWER
5.01 5.02
P.FAIL FSC IN
C113
0.069
0
RESET
OSC2
15P CH
C114
0 0
CVIN
OSC1
15P CH
1
0.15 C120
0
CNVSS V.HOLD
0.001 B C121
2.24 0.18
Xin HLF
R130
2.3
0.928 C103
1K
Xout FILT
NC
C104
470P CH
5.03
0.08
0.01 B
VSS VCC
C118
6.3V 470 YK
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C D
E
(MAIN PCB)
TU001 ENV56DB6G3
TM101
RC-EH020
C003
50V 4.7 YK
R004
390K
W810
R110
1K 1/4W
C140
0.001 CH
C137
R123
4.7K 50V 0.1 KA
C129
R122
4.7K 50V 0.1 KA
R121
4.7K 50V
R120
4.7K
R136
100
R137
100
R119
2 1K
R134 C124
470 0.1 B
220P CH
C122
50V 1 KA
R108 1K
4.8 4.8 0 4.9
5 6 7 8
4 3 2 1
0 0 0 0
CAUTION: SINCE THESE PARTS MARKED BY ARE
ATTENTION: LES PIECES REPAREES PAR UN
CRITICAL FOR SAFETY,USE ONES
DANGEREUSES AN POINT DE VUE SECURITE
DESCRIBED IN PARTS LIST ONLY
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
E
F G
ACCESSORY
BT001
R03(AB)E_20_T
BT002
R03(AB)E_20_T
R001
1K 1/2W
C125
0.1 KA
R.SIGNAL
G.SIGNAL
ETANT
B.SIGNAL
DEFLECTION SIGNAL
TUNER VIDEO SIGNAL
F G
H
8
7
FROM/TO POWER
AT+40V
POWER_FAIL
GND 6
DEGAUSS_H
FROM/TO CHROMA
STEREO+5V
AGC
GND
IF
TUNER+5V
5
PROTECT
AFT
SYNC
HD
VD
I2C_OFF
OSD_B
OSD_G
OSD_R
4
OSD_BLK
SDA
SCL
CLOCK_CONT
POWER
FSC
RESET
3
AT+5V
Y_VIDEO
2
FROM/TO DEFLECTION/CRT
AT+5V
H_CTL
GND
PCB010
TMB540
1
H