Toshiba MD20FM1 Service Manual page 48

A B
8
7
FROM/TO MICON/TUNER
CD757_1 CU292501
1 REMOCON OUT
2 GND
6
3 AT+5.6V
4 POWER ON LED
5 NC
L756
6 KEY A
W5T18.4X10X9.6
7 NC
8 NC
9 KEY B
5
4
FROM/TO SOUND AMP
CD702 CU2B2801
1 FRONT VIDEO IN
2 GND
3 FRONT A IN L
4 SOUND GND
5 SOUND OUT L
6 SP OUT L
3
7 GND
8 FRONT A IN R
9 NC
10 SOUND OUT R
11 SP OUT R
SPEAKER CD355 CU123802
SP351
1 SP OUT R+
MSF-18D5SB05-02
2 SP OUT R-
8OHM
SPEAKER
CD356 CU123802
SP352
1 SP OUT L+
MSF-18D5SB05-02
2 SP OUT L-
8OHM
2
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
1
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A B
G-25
C
OPERATION SCHEMATIC DIAGRAM
R778 R771 R772
820 1/4W 1K 1/4W 1.5K 1/4W
R775A R776 R777
820 1/4W 1K 1/4W 1.5K 1/4W
W806 W812
W808
W809 W813
C352_1 R351
220 1/2W
16V 100 YK C353 R352
220 1/2W
16V 47 KA
C351
16V 47 KA
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME CAUTION:
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(OPERATION PCB)
R773A R774
2.7K 1/4W 5.6K 1/4W
0
3 GND
4.8
2 B+
4.8
1 Vout
OS753
PIC-28143TC5
J701_1
JPJ1187-010010
J351
HTJ-035-28A
1
5
4
3
2
6
7
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
D E
F G
0
POWER LED SW
5.0
Q752A
KRC114MAT
0
PCB030
TEXA33
TUNER VIDEO SIGNAL
AUDIO SIGNAL
ETANT CAUTION: DIGITAL TRANSISTOR
F G
H
8
7
6
5
4
3
2
1
H
G-26