Sony WM-EX921 - 6-4. PRINTED WIRING BOARD - MAIN Board (Conductor Side)

WM-EX921
1717
L-ch
R-ch
L-ch
R-ch
REV
FWD
HP901
(PLAYBACK)
1
1 2 3 4 5 6
2
3
4
5
6
M601
CAPSTAN/
REEL
TV
TW
COM
TU
V
U
W
PM701
(PLUNGER)
RECHARGEABLE
BATTERY
NH-14WM
1.2V 1350mAh
(CHASSIS)
S704 (1/2)
(TAPE DETECT)
S704 (2/2)
(ATS)
1-682-489-
11
(11)
1 2 3 4 5 6 7
A
B
C
D
E
F
CHARGING
STAND
DC IN 4.5V
–
+
TP10
(GND)
TP31
(PH-S)
1
1
2
2
5
3
5
3
1
S704
1
5
3
2
MAIN BOARD
(CONDUCTOR SIDE)
(EXCEPT FR)
(FR)
(FR)
6-4. PRINTED WIRING BOARD – MAIN Board (Conductor Side) – :Uses unleaded solder.
• Semiconductor
Location
Ref. No. Location
Q302 C-5
Q304 D-6
Q306 B-7
Q312 F-7
Q314 F-7
Q317 E-7