Sony HCD-EP50, Service Manual

Page: 24 / 48

HCD-EP50
24 24
4
1 3
5
DISPLAY BOARD
MAIN BOARD
CN2
F
MAIN BOARD
CN15
D
MAIN BOARD
CN4
A
16
1
MEGA BASS
SW316
ISS
TUNER
+
PRESET
CD
x
STEREO t MONO
2 t 1
SW318
(MONO STEREO)
Z PUSH
OPEN/CLOSE
SW300
1
2
B C E B C E
VOLUME
SW311
–
SW310 SW309
X303
ROTARY ENCODER
MUSIC
MENU
TUNER MEM
ENTER
SW305
PLAY MODE
RDS/DIR
SW306
X
SW307
b B
SW308
TAPE
SW303
DISPLAY
TIMER
I/ 1
D312
CN301
LIQUID CRYSTAL DISPLAY
1
1
1
2
2
3
E C B
B C E
E C B
E C B
+
TUNING
M > . m
SW314
–
SW313
z
D313, SW317
SW301 – 317
(AEP, UK)
MAIN BOARD
CN5
C
MAIN BOARD
CN11
B
1
1
11
7
(INCLUDED IN DISPLAY BOARD)
D701 – 709
(LCD BACK LIGHT)
1 2
2 1
IC302
IC301
1
4
8
5
IC305
3 1
IC304
A
B
C
D
E
F
G
H
1 2 3 4 5 6 7 8
EXCEPT
AEP, UK, CH
(AEP, UK)
(AEP, UK)
(AEP, UK)
(AEP, UK)
(AEP, UK) (AEP, UK)
(EXCEPT AEP, UK, CH)
(AEP, UK, CH)
(AEP, UK)
6-11. PRINTED WIRING BOARD – DISPLAY Board –
(Page 23)
(Page 23)
(Page 23)
(Page 23)
(Page 23)
• Semiconductor
Location
Ref. No. Location
D301 B-3
D302 B-3
D303 A-2
D304 A-2
D305 B-3
D306 A-2
D307 B-3
D308 B-2
D309 D-6
D310 D-6
D311 E-7
D312 B-7
D313 E-7
D315 C-2
D316 E-3
D317 E-3
D318 E-2
D701 H-6
D702 H-6
D703 H-7
D704 H-7
D705 H-7
D706 H-7
D707 H-8
D708 H-8
D709 H-8
IC301 B-5
IC302 C-3
IC304 E-3
IC305 E-2
Q301 E-7
Q302 D-7
Q303 E-2
Q304 A-7
Q305 E-6
Q306 E-3
X302 F-3
Ver 1.1