Schematic Diagram - Switch Board (Suffix-12) - Sony HCD-M90 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
6-49. SCHEMATIC DIAGRAM – SWITCH Board (Suffix-12) –
CN501
21P
AC DET
POWER KEY
LCD RS
T E
L 1 3 9 4 2 2 9 6 5 1 3
LCD CS
LCD CLK
LCD DATA
KEY
KEY3
KEY1
KEY2
BACKUP3.3V
CD-SYNC LED
(Page 73) DSG-LED
SIRCS
TC-LED
CD-LED
TU-LED
D-GND
+8V
STBY-LED
w w w
.
http://www.xiaoyu163.com
LCD802
LIQUID CRYSTAL DISPLAY
C874
0.001
R538
10k
C807 C806
1 1
50V 50V
R534 100
R535 100
R536 100
L501 C800
10µH 0.1
R537 100
x a o u 1 6 3
y
i
http://www.xiaoyu163.com
8 9
Q Q
3 7 6 3 1 5
C833
JR513
100
0
6.3V
JR521
0
R501 R502 R503
560 560 560
D809 D810 D811 D812
SLI-343-YC SLI-343-YC SLI-343-YC SLI-343-YC
DVD TUNER DSG TAPE
Q805
Q806 Q807 Q808
SRC1202S
SRC1202S SRC1202S SRC1202S
Q805-809
LED DRIVE
c o
.
77 77
2 4 2
9 8
D804-806
(LCD BACK LIGHT)
R813 470
D804
NSPW315BS R898 470
R812 470
D806
NSPW315BS R899 470
R811 470
D805
NSPW315BS R900 470
S817 TUNING +
DVD
R521
1.5k
S812
TAPE
R520
1k
S820
TUNER
VOLUME +
AM
R519
680
JR501
S801 S808
0
VOLUME -
DSG
DVD
R514 R518
470 470
S804
DVD S805
TUNER
FUNCTION
FM
R513
1 5 0 8 9 2 4 9 8
330 R517
330
S807 S802
TAPE
DVD
R512
220
R516
220
O I
G
IC802
C820 NJL74H400A
100p
R504 R505 REMOTE
560 560
CONTROL
RECEIVER
D813
SLR325VR-T31
R542
CD SYNCHRO 2.2k
Q812,813
LED DRIVE
Q809 Q813
SRC1202SS SRC1202S
m
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
HCD-M90
Ver 1.3
9 9
S818
TUNING -
S815
R527
1.5k
R526
1k
S813
R525
680
S811
R524
470
S809
R523
330
S806
2 9 9
S803
R522 R530 R531
220 3.3k 1k
JR505 JR523
0 0
D814
C822 SLR325VR
C821 4.7 -T31
0.01 16V
(STANDBY)
Q811
SRC1202S
LED DRIVE
R541
1k
Q812
SRC1202S