Sony HCD-ED2 Service Manual ▷ View online
HCD-ED2
17
17
6-5. PRINTED WIRING BOARD – FUNCTION SECTION –
• See page 13 for Circuit Boards Location.
Ref. No.
Location
• Semiconductor
Location
D301
A-5
D302
A-5
D303
A-5
IC301
B-4
IC302
D-2
IC305
A-2
Q301
C-2
Q302
C-2
Q303
C-2
Q304
B-1
Q305
A-3
Q306
A-2
R353
R390
C389
R354
R331
C321
C362
C361
C377
R352
R376
R378
R377
D301
D302
C347
J39
R345
M302
M301
J14
R311
C373
J22
J21
J34
J04
C363
C322
C323
C364
R321
C313
J33
J32
J35
J36
J37
J38
J27
J28
J24
J31
J30
J29
C342
C337
C331
C332
R334
R333
R398
R332
R388
R308
R348
C320
R346
IC302
R307
R378
R386
R381
C348
C346
C345
C343
J20
J19
J18
C311
C334
C335
J23
C338
C336
D303
J13
C376
CHASSIS
IC305
C380
R375
C386
Q306
R379
L301
C310
C355
C340
C326
R314
J15
J16
J17
C325
R325
R326
R327
R315
R312
R304
R305
R313
R316
C324
R306
R301
R302
R303
C333
R322
J26
J25
C314
E
C350
R363
R365
C392
R337
C349
C327
C341
R366
R364
R361
R385
R391
R382
R374
C374
J05
C370
C385
C390
R342
R340
R336
R347
C318
C317
C312
R330
R329
R323
R335
R339
R341
C319
J01
C316
R324
Q303
Q302
C315
C387
R393
R397
J03
5
E
1
R392
W902
J02
C369
C383
C307
C351
C308
R318
C344
R317
R387
C382
C391
IC301
Q305
R383
R384
C388
C379
R384
R394
R380
R344
R338
J10
C375
1
8
24
25
41
64
65
80
1
10
1
13
1
E
J11
J08
R389
J06
C381
L
R
L
R
IN
MD
OUT
FUNCTION BOARD
09
1
D
C
B
A
2
3
4
5
6
Q304
Q301
E
B
E
B
E
C
B
B
E
C
JK302
JK301
TAPE
PRE AMP
BOARD
M902
D
RELAY
BOARD
M3011
B
RELAY
BOARD
M3012
C
(Page 23)
(Page 23)
(Page 19)
HCD-ED2
18
18
6-6. SCHEMATIC DIAGRAM – TAPE PREAMP SECTION –
• See page 13 for Waveforms.
• See page 19 for Printed Wiring Board.
• See page 28 for IC Block Diagrams.
• See page 30 for IC Pin Functions.
• See page 19 for Printed Wiring Board.
• See page 28 for IC Block Diagrams.
• See page 30 for IC Pin Functions.
HCD-ED2
19
19
6-7. PRINTED WIRING BOARD – TAPE PREAMP SECTION –
• See page 13 for Circuit Boards Location.
Ref. No.
Location
• Semiconductor
Location
D191
A-1
IC191
A-1
IC701
C-5
IC702
B-5
IC703
B-3
Q702
D-3
Q704
D-3
Q705
D-3
Q706
D-2
Q707
C-5
Q708
C-2
1
1
W193
SW601
CD SW BOARD
09
1
2
A
W193
OPEN
CLOSE
1
M7031
M7032
J733
J730
J731
J734
C762
J736
J704
J717
Q705
R724
C716
R720
R743
C749
R761
R758
C745
J707
R717
C723
C727
C722
R702
R701
C725
C726
J727
R723
TP705
J740
J481
JK800
C712
J706
C704
C719
R703
R713
C754
C753
TP799
C711
R709
C709
R711
R712
C707
R707
R746
C750
R762
R760
R744
R752
C756
J723
R754
J718
J717
J715
J714
J713
R750
C746
J712
J711
C705
R705
J710
R706
C706
R708
R714
C708
C710
R710
C713
C720
C700
J508
R716
C703
R704
R766
R765
Q707
R486
R485
C799A
C484
C741
C724
R718
C732
R722
C730
C731
R721
C721
C747
C751
R705
R719
J728
J732
R763
D191
J180
M193
R191
M194
C192
R192
R759
J724
J725
C761
J719
J721
J716
J720
R751
J783
R764
R757
R749
R741
C743
VR705
Q708
Q704
J705
C728
L704
Q702
C729
Q706
L703
VR701
L702
TP703
TP701
TP704
IC701
IC702
C715
C714
R715
JK900
J800
C801
C802
VR704
VR703
M701
J482
C483
1
1
4
1
6
2
5
7
3
1
TP705
TP706
C799
M902
L701
J706
VR702
B
E
B
E
J722
R753
IC703
C752
R725
TP708
C748
R742
C744
C758
C742
VR706
IC191
1
42
22
21
1
C191
B
E
B
B
C
E
E
TAPE PREAMP BOARD
09
1
2
3
4
5
6
D
C
B
A
1
2
3
10
1
13
1
9
1
FUNCTION
BOARD
W902
D
REC LEVEL
L
B
R
L
JK800
CD DIGITAL
OUT
OPTICAL
PHONES
JK900
PB LEVEL
R
PB LEVEL
L
REC BIAS
R
M
DOOR
MOTOR
REC BIAS
L
E
RELAY
BOARD
W7032
F
RELAY
BOARD
W7031
REC LEVEL
R
(Page 23)
(Page 23)
1
(Page 17)
HCD-ED2
20
20
6-8. SCHEMATIC DIAGRAM – DISPLAY SECTION –
• See page 13 for Waveforms.
• See page 21 for Printed Wiring Board.
• See page 28 for IC Block Diagrams.
• See page 30 for IC Pin Functions.
• See page 21 for Printed Wiring Board.
• See page 28 for IC Block Diagrams.
• See page 30 for IC Pin Functions.
Click on the first or last page to see other HCD-ED2 service manuals if exist.