Sony HCD-EC68USB / MHC-EC68USB Service Manual ▷ View online
HCD-EC68USB
HCD-EC68USB
33
33
PANEL
CN303
BOARD
A
(1/2)
BOARD
C
MAIN
CN605
MAIN
D
BOARD
(1/2)
PANEL
CN306
BOARD
B
17.1
8.9
R407
2.2k
TP415
TP416
R408
2.7k
R409
3.9k
R410
6.8k
R411
15k
KEY CD BOARD
DISC 1
SW306
SW307
DISC 2
SW308
DISC 3
SW309
SW310
DISC SKIP/
EX-CHANGE
KEY-1
GND
1
2
J491
AUDIO IN
C491
0.1
C492
0.1
C495
1000p
C496
1000p
TP491
TP492
TP493
TP494
TP495
TP496
TP497
TP498
J492
PHONES
R491
22k
R492
22k
JACK BOARD
1
A-GND
AUDIO-L
HP-GND
AUDIO-R
HP-R
HP-L
SP-RELAY
AMP-ON
9 GND
0.1
C698
I
O
G
KIA7809API-U/PF
IC601
1
3
2
REG BOARD
+9V REGULATOR
IC601
TP409
TP410
1
2
3
3P
W401
KEY-0
GND
KEY-SW-ON
(NC)
KEY POWER BOARD
STANDBY
SW301
/
B
5
3
1
C
D
E
F
G
4
A
2
3
2
1
3P
W610
OUT
GND
IN
(CHASSIS)
(SUFFIX-14)
W491
R407
R411
R409
R410
R408
KEY CD BOARD
R491
R492
1
9
C491
C492
C495
C496
JACK BOARD
C698
1
3 2
SW301,
SW306 - 310
R491
R492
CN496
1
9
C491
C495
C496
JACK BOARD
1
2
SW310
SW307
(SUFFIX-14)
(SUFFIX-14)
(SUFFIX-13)
(SUFFIX-13)
(SUFFIX-12)
(SUFFIX-14)
(SUFFIX-12/-13)
(SUFFIX-14)
(SUFFIX-12/-13)
(SUFFIX-14)
(SUFFIX-12/-13)
(SUFFIX-14)
(SUFFIX-12/-13)
(SUFFIX-12)
SW309
SW308
SW306
1
3
SW301
W401
KEY POWER BOARD
JW491
W491
1
3
JW614
W610
REG BOARD
JW491
IC601
A3
PANEL
BOARD
CN303
A2
PANEL
BOARD
CN303
A1
PANEL
BOARD
CN303
1-875-492-
12, 13, 14
(12, 13, 14)
12, 13, 14
(12, 13, 14)
14
(14)
12, 13, 14
(12, 13, 14)
DISC 1
DISC SKIP/
EX-CHANGE
DISC 2
DISC 3
;
D1
MAIN
BOARD
D2
MAIN
BOARD
B3
PANEL
BOARD
CN306
B2
PANEL
BOARD
CN306
B1
PANEL
BOARD
CN306
C2
MAIN
BOARD
CN605
C4
MAIN
BOARD
CN605
1-875-489-
1-875-493-
1-875-491-
STANDBY
J492
J491
PHONES
AUDIO IN
B
A
C
D
E
F
G
1
2
3
4
5
(NC)
C1
MAIN
BOARD
CN605
C3
MAIN
BOARD
CN605
1-875-493-
12, 13
(12, 13)
J492
J491
PHONES
AUDIO IN
(CHASSIS)
(Page 37)
6-15. SCHEMATIC DIAGRAM - KEY Section -
(Page 34)
(Page 30)
(Page 30)
(Page 37)
6-14. PRINTED WIRING BOARDS - KEY Section -
•
: Uses unleaded solder.
• See page 23 for Circuit Boards Location.
(Page 35) (Page 36)
(Page 28) (Page 29)
(Page 34)
(Page 35)
(Page 36)
(Page 28)
(Page 29)
(Page 29)
(Page 28)
Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING
BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.
HCD-EC68USB
HCD-EC68USB
34
34
1
100
30
31
81
80
50
51
B E
B E
B E
B E
B E
B
E
B E
B E
B
E
B
E
B
E
B
E
B
E
R400
R401
R402
R405
R406
R412
R413
R414
R415
R416
R417
R418
R419
R420
R422
R426
R428
R446
R433
R447
Q301
Q303
Q304
Q305
Q306
Q311
Q312
Q313
Q314
Q315
Q316
Q317
Q318
FB301
R301 R302
R303
R304
R305
R306
R307
R308
R311
R310
R312
R313
R314
R315
R316
R317
R318
R319
R320
R321
R321
R322
R323
R324
R325
R326
R327
R328
R329
R330
R331
R332
R333
R334
R335
R336
R337
C301
C304
R346
R347
R348
R349
C311
C312
C313
R350
C314
R351
C315
R352
C316
R353
C317
R354
R437
R355
C319
R356
R357
R358
R359
R359
C320
C321
C348
C347
R360
R361
R362
R363
R364
C328
R365
R366
R367
R368
R369
C330
C332
R370
R371
R372
R373
R374
C338
R375
C340
C341
C342
R380
SW303 - 305,
SW311 - 319
SW311 - 319
C344
R381
C345
CN307
R382
C346
R383
R384
R385
R386
R387
R389
C354
R390
C355
R391
C356
R392
R396
D301
D302
D303
D304
JR301
JR302
JR303
JR304
JR305
JR307
R434
R435
JR308
JR309
JR310
JR311
JR313
JR315
SCR1
R376
R377
R378
R379
B E
B E
B E
R421
Q307
Q308
Q310
R338
R339
R340
R341
R342
R343
R344
C308
R345
C310
D305
B
E
1
37
11
2
27
26
1
2
12
13
2
4
1
5
3
2
1
11
2
1
2
JW370
JW371
JW372
JW374
JW375
JW376
JW377
JW378
JW379
JW380
JW381
JW382
JW383
JW384
JW385
JW386
JW387
JW388
JW390
JW391
JW392
JW393
JW394
JW395
JW396
JW401
JW402
JW405
JW406
Q302
LED301
SW303
SW303
SW304
SW305
TUNING +
W301
3
1
SW311
SW312
SW313
SW314
SW315
SW316
SW317
SW318
SW319
CN304
CN302
CN303
CN306
C302
C303
C305
C306
X301
X302
S301
JW301
JW302
JW303
JW304
JW305
JW306
JW307
JW308
JW309
JW310
JW311
JW312
JW313
JW314
JW315
JW316
JW317
JW318
JW319
JW320
JW321
JW322
JW323
JW324
JW325
JW326
JW328
JW329
JW330
JW331
JW332
JW333
JW334
JW336
JW338
JW339
JW340
JW341
JW342
JW343
JW344
JW345
JW346
JW347
JW348
JW349
JW350
JW351
JW352
JW353
JW354
JW355
JW356
JW357
JW358
JW359
JW360
JW361
JW362
JW363
JW364
JW365
JW366
JW367
JW368
PANEL BOARD
JW397
JW398
JW403
JW404
JW337
E
B
JW373
JW389
JW399
JW400
Q309
C309
C343
JW335
JW369
IC301
IC302
ENTER
.-
USB SYNC
REC/REC 1
USB
FUNCTION
VOLUME
DSGX
EQ
ROTARY
ENCODER
ENCODER
DISPLAY
ERASE
-TUNING
V
SW311
(SUFFIX-12/-13)
(SUFFIX-14)
(EXCEPT AEP)
LCD301
LIQDID CRYSTAL DISPLAY
Y
.-
L1
MAIN
BOARD
CN607
L4
MAIN
BOARD
CN607
B1
KEY
POWER
BOARD
W401
STANDBY
1-875-490-
12
(12)
A1
KEY CD
BOARD
T1
USB BOARD
CN902
CD MECHANISM
DECK
A
B
C
D
E
F
G
1
2
3
4
5
6
(CHASSIS)
(Page 33)
(Page 33)
(Page 26)
(Page 28)
6-16. PRINTED WIRING BOARD - PANEL Board (Suffi x-12) -
•
: Uses unleaded solder.
• See page 23 for Circuit Boards Location.
Ref. No. Location
• Semiconductor
Location
D301
D-4
D302
D-2
D303
D-3
D304
C-4
D305
E-5
IC301
B-3
IC302
A-5
LED301 A-1
Q301
B-1
Q302
D-4
Q303
D-4
Q304
D-3
Q305
D-2
Q306
D-2
Q307
E-5
Q308
E-5
Q309
E-5
Q310
E-5
Q311
F-5
Q312
F-5
Q313
F-4
Q314
F-4
Q315
F-5
Q316
F-4
Q317
F-4
Q318
F-4
(Page 29)
Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING
BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.
HCD-EC68USB
HCD-EC68USB
35
35
1
100
30
31
81
80
50
51
B E
B E
B E
B E
B E
B E
B E
B
E
B E
B
E
B E
B
E
B
E
B
E
B
E
B
E
R400
R401
R402
R405
R406
R412
R413
R414
R415
R416
R417
R418
R419
R420
R421
R422
R426
R428
R446
R433
R447
Q301
Q303
Q304
Q305
Q306
Q307
Q308
Q310
Q311
Q312
Q313
Q314
Q315
Q316
Q317
Q318
FB301
R301 R302
R303
R304
R305
R306
R307
R308
R311
R310
R312
R313
R314
R315
R316
R317
R318
R319
R320
R321
R321
R322
R323
R324
R325
R326
R327
R328
R329
R330
R331
R332
R333
R334
R335
R336
R337
R338
R339
C301
R340
C304
R341
R342
R343
R344
C308
R345
R346
R347
R348
R349
C310
C311
C312
C313
R350
C314
R351
C315
R352
C316
R353
C317
R354
R437
R355
C319
R356
R357
R358
R359
R359
C320
C321
C348
C347
R360
R361
R362
R363
R364
C328
R365
R366
R367
R368
R369
C330
C332
R370
R371
R372
R373
R374
C338
R375
R376
R377
R378
R379
C340
C341
C342
R380
SW303 - 305,
SW311 - 319
SW311 - 319
C344
R381
C345
CN307
R382
C346
R383
R384
R385
R386
R387
R389
C354
R390
C355
R391
C356
R392
R396
D301
D302
D303
D304
D305
JR301
JR302
JR303
JR304
JR305
JR307
R434
R435
JR308
JR309
JR310
JR311
JR313
JR315
SCR1
B
E
E
B
1
37
11
2
27
26
1
2
12
13
2
4
1
5
3
2
1
11
2
1
2
JW370
JW371
JW372
JW373
JW374
JW375
JW376
JW377
JW378
JW379
JW380
JW381
JW382
JW383
JW384
JW385
JW386
JW387
JW388
JW389
JW390
JW391
JW392
JW393
JW394
JW395
JW396
JW398
JW397
JW399
JW400
JW401
JW402
JW403
JW404
JW405
JW406
Q302
Q309
LED301
SW303
SW303
SW304
SW305
TUNING +
W301
3
1
SW311
SW312
SW313
SW314
SW315
SW316
SW317
SW318
SW319
CN304
CN302
CN303
CN306
C302
C303
C305
C306
C309
X301
X302
S301
C343
JW301
JW302
JW303
JW304
JW305
JW306
JW307
JW308
JW309
JW310
JW311
JW312
JW313
JW314
JW315
JW316
JW317
JW318
JW319
JW320
JW321
JW322
JW323
JW324
JW325
JW326
JW328
JW329
JW330
JW331
JW332
JW333
JW334
JW335
JW336
JW337
JW338
JW339
JW340
JW341
JW342
JW343
JW344
JW345
JW346
JW347
JW348
JW349
JW350
JW351
JW352
JW353
JW354
JW355
JW356
JW357
JW358
JW359
JW360
JW361
JW362
JW363
JW364
JW365
JW366
JW367
JW368
JW369
PANEL BOARD
IC301
IC302
ENTER
.-
USB SYNC
REC/REC 1
USB
FUNCTION
VOLUME
DSGX
EQ
ROTARY
ENCODER
ENCODER
DISPLAY
ERASE
-TUNING
V
SW311
(SUFFIX-12/-13)
(SUFFIX-14)
(EXCEPT AEP)
LCD301
LIQDID CRYSTAL DISPLAY
Y
.-
L2
MAIN
BOARD
CN607
L5
MAIN
BOARD
CN607
B2
KEY
POWER
BOARD
W401
STANDBY
1-875-490-
13
(13)
A2
KEY CD
BOARD
T2
USB BOARD
CN902
CD MECHANISM
DECK
A
B
C
D
E
F
G
1
2
3
4
5
6
(CHASSIS)
(Page 33)
(Page 28)
(Page 26)
(Page 33)
(Page 29)
6-17. PRINTED WIRING BOARD - PANEL Board (Suffi x-13) -
•
: Uses unleaded solder.
• See page 23 for Circuit Boards Location.
Ref. No. Location
• Semiconductor
Location
D301
D-4
D302
D-2
D303
D-3
D304
C-4
D305
E-5
IC301
B-3
IC302
A-5
LED301 A-1
Q301
B-1
Q302
D-4
Q303
D-4
Q304
D-3
Q305
D-2
Q306
D-2
Q307
E-5
Q308
E-5
Q309
E-5
Q310
E-5
Q311
F-5
Q312
F-5
Q313
F-4
Q314
F-4
Q315
F-5
Q316
F-4
Q317
F-4
Q318
F-4
Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING
BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.
HCD-EC68USB
HCD-EC68USB
36
36
1
100
30
31
81
80
50
51
B E
B E
B E
B E
B E
B E
B E
B
E
B E
B
E
B E
B
E
B
E
B
E
B
E
B
E
R400
R401
R402
R405
R406
R412
R413
R414
R415
R416
R417
R418
R419
R420
R421
R422
R426
R428
R446
R433
R447
Q301
Q303
Q304
Q305
Q306
Q307
Q308
Q310
Q311
Q312
Q313
Q314
Q315
Q316
Q317
Q318
FB301
R301 R302
R303
R304
R305
R306
R307
R308
R311
R310
R312
R313
R314
R315
R316
R317
R318
R319
R320
R321
R321
R322
R323
R324
R325
R326
R327
R328
R329
R330
R331
R332
R333
R334
R335
R336
R337
R338
R339
C301
R340
C304
R341
R342
R343
R344
C308
R345
R346
R347
R348
R349
C310
C311
C312
C313
R350
C314
R351
C315
R352
C316
R353
C317
R354
R437
R355
C319
R356
R357
R358
R359
R359
C320
C321
C348
C347
R360
R361
R362
R363
R364
C328
R365
R366
R367
R368
R369
C330
C332
R370
R371
R372
R373
R374
C338
R375
R376
R377
R378
R379
C340
C341
C342
R380
SW303 - 305,
SW311 - 319
SW311 - 319
C344
R381
C345
CN307
R382
C346
R383
R384
R385
R386
R387
R389
C354
R390
C355
R391
R392
R396
D301
D302
D303
D304
D305
JR301
JR302
JR303
JR304
JR305
JR307
R434
R435
JR309
JR310
JR311
JR313
JR315
SCR1
B
E
E
B
1
37
11
2
27
26
1
2
12
13
2
4
1
5
3
2
1
11
2
1
2
JW370
JW371
JW372
JW373
JW374
JW375
JW376
JW377
JW378
JW379
JW380
JW381
JW382
JW383
JW384
JW385
JW386
JW387
JW388
JW389
JW390
JW391
JW392
JW393
JW394
JW395
JW396
JW398
JW397
JW399
JW400
JW401
JW402
JW403
JW404
JW405
JW406
Q302
Q309
LED301
SW303
SW303
SW304
SW305
TUNING +
W301
3
1
SW311
SW312
SW313
SW314
SW315
SW316
SW317
SW318
SW319
CN304
CN302
CN303
CN306
C302
C303
C305
C306
C309
X301
X302
S301
C343
JW301
JW302
JW303
JW304
JW305
JW306
JW307
JW308
JW309
JW310
JW311
JW312
JW313
JW314
JW315
JW316
JW317
JW318
JW319
JW320
JW321
JW322
JW323
JW324
JW325
JW326
JW328
JW329
JW330
JW331
JW332
JW333
JW334
JW335
JW336
JW337
JW338
JW339
JW340
JW341
JW342
JW343
JW344
JW345
JW346
JW347
JW348
JW349
JW350
JW351
JW352
JW353
JW354
JW355
JW356
JW357
JW358
JW359
JW360
JW361
JW362
JW363
JW364
JW365
JW366
JW367
JW368
JW369
PANEL BOARD
IC301
IC302
ENTER
.-
USB SYNC
REC/REC 1
USB
FUNCTION
VOLUME
DSGX
EQ
ROTARY
ENCODER
ENCODER
DISPLAY
ERASE
-TUNING
V
SW311
(SUFFIX-12/-13)
(SUFFIX-14)
(EXCEPT AEP)
LCD301
LIQDID CRYSTAL DISPLAY
Y
.-
L3
MAIN
BOARD
CN607
L6
MAIN
BOARD
CN607
B3
KEY
POWER
BOARD
W401
STANDBY
1-875-490-
14
(14)
A3
KEY CD
BOARD
T3
USB BOARD
CN902
CD MECHANISM
DECK
A
B
C
D
E
F
G
1
2
3
4
5
6
(CHASSIS)
(Page 33)
6-18. PRINTED WIRING BOARD - PANEL Board (Suffi x-14) -
•
: Uses unleaded solder.
• See page 23 for Circuit Boards Location.
Ref. No. Location
• Semiconductor
Location
D301
D-4
D302
D-2
D303
D-3
D304
C-4
D305
E-5
IC301
B-3
IC302
A-5
LED301 A-1
Q301
B-1
Q302
D-4
Q303
D-4
Q304
D-3
Q305
D-2
Q306
D-2
Q307
E-5
Q308
E-5
Q309
E-5
Q310
E-5
Q311
F-5
Q312
F-5
Q313
F-4
Q314
F-4
Q315
F-5
Q316
F-4
Q317
F-4
Q318
F-4
(Page 26)
(Page 33)
(Page 28)
(Page 29)
Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING
BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.
Click on the first or last page to see other HCD-EC68USB / MHC-EC68USB service manuals if exist.