JVC TV-13142 Service Manual page 18

[ OPERATION PWB CIRCUIT DIAGRAM ]
A B
8
7
6
5
FROM/TO I/O
CD757 (CP757)
CH2A020A
10 REMOCON IN
9 GND
8 AT+5V
7 NC
6 NC
5 KEY A
4
4 T-REC LED
3 REC LED
2 KEY B
1 ON TIMER LED
3
FROM/TO I/O
CD351 (CP353)
CH27080A
7 FRONT VIDEO IN
6 GND
5 FRONT A IN L
4 SOUND GND
3 SOUND OUT L
2 SP OUT L
1 GND
2
SPEAKER
CD352 CH12435A
SP351
1 SP +
SG04D11BNA
2 SP -
8 OHM
NOTE:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
1
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A B
TV-13142W
C
OPERATION SCHEMATIC DAIGRAM
R778 R771 R772 R773 R774 R781
820 1K 1.5K 2.7K 6.8K 22K
R775 R776 R777 R780 R782 R783
820 1K 1.5K 2.7K 6.8K 22K
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
No.51810
TV-13142 TV-13142
TV-13142W
D E
(OPERATION PCB)
3 GND
L751
2 B+
100uH
1 Vout
OS753
PIC-28143TE5
J351
HTJ-035-28A
1
NC 5
4
R380
3
R381 33 1/2W
2
33 1/4W
6
7
H H
C381 2 4
0.022 F
1 3
E E
VIDEO AUDIO L
J701
JPJ3811-01-430
CAUTION: SINCE THESE PARTS MARKED BY ARE ATTENTION:
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
2-27 2-28
F G
PCB030
TUNER VIDEO SIGNAL
TE9965
AUDIO SIGNAL
LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F G
No.51810
H
8
7
6
5
4
3
2
1
H