Sony HCD-EX6 / HCD-EX6T / HCD-EX8 / HCD-EX8T / HCD-EX9 / HCD-EX9T / MHC-EX6 / MHC-EX6T / MHC-EX8 / MHC-EX8T / MHC-EX9 / MHC-EX9T Service Manual ▷ View online
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
29
29
6-9. SCHEMATIC DIAGRAM – PANEL Section –
• See page 20 for Waveforms. • See page 44 for IC Pin Function Descriptions of IC301.
1
H
J
15
4
10
7
16
5
13
B
K
I
F
6
17
E
3
A
D
8
18
12
9
C
G
14
2
11
1
2
BOARD
CN901
USB
B
(2/2)
CN603
BOARD
MAIN-AMP
PT-POWER
D
F
CN011
BOARD
E
BOARD
(2/2)
MAIN-AMP
CN602
1.2
1.2
1.2
2.5
4
8.2
7.6
4.7
4.6
4
6.1
0.7
0
0.2
0.8
4.7
4.9
0
4.7
4.7
4.9
0
4.7
4.9
4.7
0
4.7
4.7
4.9
0
4.7
0
0
3.1
3.1
4.7
4.7
4.7
5.2
0
7.1
7.1
0
8.2
4.9
7.7
7.7
4.9
3.2
7.8
3.9
3.9
0
2.6
4.9
1.9
0.1
0.7
9
4.2
3
2.7
1.2
1.2
1.2
1.2
1.2
1.2
1
1.5
3.1
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
3.1
1.2
1.2
1.2
1.2
1.2
2.4
1.2
0
0
0
3.1
3.1
3.1
0
3.1
3.1
3.1
1.4
3.1
3.1
3
2.1
2.8
3
1.4
0.9
2.3
0
3.2
3.1
3.1
1.6
0
0.2
2.7
0
0
0
0
3.1
3.1
1.5
0
3.1
3.1
3.2
0
0
3.1
3.1
0
2.6
2.9
3.1
3.1
3.1
0
0
3.1
(EX6/EX8/EX9)
EX6/EX8/EX9
(EX6T/EX8T/EX9T)
EX6T/EX8T/EX9T
(EX6/EX6T/
EX8/EX8T)
(EX9/EX9T)
4.9
*1
*2
EX6/EX8/EX9
*2
(E2)
(E51,AR,MX)
*1
(EX6T)
(EX8T)
(EX9T)
(EX6)
(EX8)
EX6T/EX8T/EX9T
IC301
IC302
2SC3052F-T1-LF
Q304
VOLTAGE DETECT
2SC3052F-T1-LF
Q303
+4V REG
R332
10k
C301
0.1
2SC3052F-T1-LF
Q305
VOLTAGE DETECT
Q306
RT1N441C-TP-1
RESET
R337
220
R338
2.2
R339
2.2
R340
4.7k
R342
220k
R343
470k
Q308
RT1N441C-TP-1
VOLTAGE DETECT
Q310
2SC3052F-T1-LF
+5V REG
C309
50V
22
R346
47k
R347
470
R354
47k
R348
47k
R349
470
R350
47k
R351
470
R352
47k
R353
470
R358
47k
R361
47k
R357
47k
R362
22k
R364
22k
R363
22k
R367
22k
R365
22k
C320
22p
C321
0.1
R327
100
R326
100
R325
10
Q301
2SC3052F-T1-LF
LED DRIVE
R328
10k
R498
1k
R497
470
R470
10k
R480
10k
R402
100k
C338
1000p
R301
100
R302
100
R303
100
R304
100
R305
100
R306
100
R307
100
R308
100
R309
100
R310
100
R311
100
R312
100
R313
100
R314
100
R315
100
R316
100
R317
100
R318
100
R319
100
R320
100
R321
100
C310
0.1
C311
0.1
C312
0.1
C330
0.1
Q309
KTA1273-Y-AT
+5V REG
R341
33k
KTA1271Y-AT
Q302
+4V REG
R334
3.3k
R331
100k
C302
100
10V
C341
0.1
R345
4.7k
R344
2.7k
R324
100
R333
100k
R336
10k
C305
10
50V
C303
10
50V
C317
220p
R369
1k
R370
1k
R371
1k
R372
1k
R374
1k
R491
1k
R481
1k
100k
R420
C332
0.01
R390
10k
R392
10k
R389
R391
TP301
TP302
TP303
TP304
TP305
TP306
TP307
TP308
TP309
TP310
TP311
TP312
TP313
TP314
TP315
TP316
TP317
TP318
TP319
TP320
TP321
TP322
TP323
TP324
TP326
TP327
TP341
TP342
TP343
TP344
TP346
TP347
TP348
TP349
TP350
TP351
TP352
R329
2.2k
1
2
3
4
5
6
7
8
9
10
11
12
13
13P
CN302
M2-
M2+
M1-
M1+
SW-COM
SW3
SW1
I-CHACK
SW2
I-CLOSE
I-STOCK
I-OPEN
NC
R330
680
R421
10k
50V
C343
22
C314
0.047
C315
0.047
C316
0.047
C328
0.047
MAZ8043GMLS0
D301
R496
10k
R495
10k
R493
68k
TP328
TP329
TP331
R490
10k
4.7k
R492
C344
0.047
R335
22k
R368
10k
R394
100k
R366
10k
R393
47k
C345
0.047
0.047
C346
Q307
ISA1235AC1TP-1EF
VOLTAGE DETECT
C304
0.1
R360
560
R359
560
R356
560
R355
560
C306
6.3V
470
R400
1k
R401
1k
R383
100
R434
100
R382
100
R494
33k
MC2836-T112-1
D303
4.7k
R378
4.7k
R379
SW492
MA2J1110GLS0
D305
MA2J1110GLS0
D302
C342
1000p
C319
18p
R396
330k
S491
ROTARY ENCODER
C340
0.1
SW491
TP332
R377
100
R375
47
TP371
TP373
TP374
TP375
TP376
TP377
TP378
TP379
TP372
TP380
R471
1k
1.2k
R482
R486
3.9k
R484
2.2k
SW484
SW485
R485
2.7k
SW486
1.5k
R483
SW483
SW487
R487
6.8k
SW482
SW488
R488
15k
1
2
3
4
5
6
7
8
9
10
11
11P
CN305
RST
MD0
MD2
GND
VDD
P66(42)
P65(41)
RXD(31)
TXD(29)
SCLK(30)
R376
1.2k
27k
R419
6MHz
X302
C336
0.1
R384
33k
C308
0.1
TP336
TP333
1N4002-A2
D453
68
R456
1N4002-A2
D452
TP330
10V
C454
470
2200p
C453
1k
R453
22k
R452
TP335
10V
220
C451
TP338
MAZ8039GHLS0
D451
2SC3052F-T1-LF
Q452
+3.3V REG
TP334
68
R454
470p
C450
TP337
100
R451
68
R455
KTC3203Y-AT
Q451
+3.3V REG
SW476
1.5k
R473
SW475
1.2k
R472
SW474
SW473
R478
15k
SW477
R476
3.9k
R489
47k
R477
6.8k
SW481
SW471
SW478
R474
2.2k
R475
2.7k
SW472
SW489
C497
0.1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
MB90F831PF-G-SPE1
IC301
SYSTEM CONTROLLER
SEG32
O-SP-RELAY-ON/TC ON/SW ON
O-POWER
O-5V-ON
I-3CD-SW3
I-3CD-SW2
I-3CD-SW1
O-3CD-M1+
I-RMC
O-3CD-M1-
O-3CD-M2+
O-3CD-M2-
X0A
X1A
VCC
VSS
O-CD-CE
O-CD-CL
I-CD-DI
O-CD-DO
I-3CD-CHACK
I-3CD-STOCK
O-CD-M-MUTE
O-CD-RST
O-DIMMER1
O-CD-ON
O-LED-VOL
O-LED-LCD
I-USB-TXD
O-TP_REC_MUTE
O-USB-RXD
AV
C
C
O-USB-SLEEP
O-USB-RST
AVSS
I-P-MONI
I-KEY1
I-KEY2
I-TU-ANSD
I-5V/9V
-DET
I-KEY
-W
AKE-UP/VOL
I-HOLD
I-LEVEL
GND
I-3CD-CLOSE/OPEN
I-MODEL
I-SUFFIX/TP-ST
ATE
I-TU-DO
O-I2C-FUNC-DA
TA
O-I2C-FUNC-CLK
MD2
MD1
MD0
I-RST
O-TU-CE
O-TU-DI
O-TU-CLK
VLCD
COM0
COM1
COM2
COM3
SEG0
SEG1
VCC
VSS
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
VCC
VSS
X1
X0
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
2SC3052F-T1-LF
Q320
LED DRIVE
100
R422
68
R423
100
R424
68
R425
100
R426
100
R427
68
R428
R373
10k
2SC3052F-T1-LF
Q401
+4V REG
2SC3052F-T1-LF
Q402
DIMMER CONTROL
33k
R435
1k
R440
100
R441
220
R442
470
R443
R458
0
R459
0
R460
0
R461
0
R462
0
R463
0
R464
0
R465
0
R466
0
100k
R429
100k
R430
22k
R431
10k
R436
100
R444
10k
R432
32.768kHz
X301
1N4002-A2
D400
VCC
OUT
GND
PNA4823M02S0
IC302
REMOTE CONTROL
SIGNAL RECEIVER
1
2
3
1
2
3
4
5
6
7
8
9
10
11
11P
CN306
VBUS5V
VBUS5V
VBUS5V
VBUSGND
VBUSGND
VBUSGND
V-STBY
O-POWER
5V-ON
I-P-MONI
CD-AVR
MC2838-T112-1
D304
1k
R381
0
R449
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
25P
CN451
CD-M-GND
CD-VM(7V)
AVDD(3.3V)
CD/USB-Rch
AU-GND
CD/USB-Lch
AGND
DGND
DVDD(3.3V)
CD-M-MUTE
CD-RST
CD-DO
CD-DI
CD-CL
CD-CE
USB-SLEEP
USB-TXD
USB-RXD
USB-RST
VBUSGND
VBUSGND
VBUSGND
VBUS5V
VBUS5V
VBUS5V
1
7
8
9
10
11
12
5
6
14
19 18 17
13
16
20
15
23
24
27
21
28
26 25
22
31
33
35
30
32
36
34
29
2
3
4
37
LCD301
LIQUID CRYSTAL DISPLAY PANEL
1L434XA22E0DDT01
D313
(VOLUME)
1L434XA22E0DDT01
D314
(VOLUME)
1L434XA22E0DDT01
D315
(VOLUME)
1L434XA22E0DDT01
D316
(VOLUME)
1L434XA22E0DDT01
D317
(VOLUME)
1L0341Y23E0CA602-II
D306
(LCD BACK LIGHT)
Q315
2SC3440-T12-1F
MOTOR DRIVE
Q316
2SC3440-T12-1F
MOTOR DRIVE
Q317
2SC3440-T12-1F
MOTOR DRIVE
Q318
2SC3440-T12-1F
MOTOR DRIVE
Q311
2SA1365-T112-1EF
MOTOR DRIVE
Q312
2SA1365-T112-1EF
MOTOR DRIVE
Q313
2SA1365-T112-1EF
MOTOR DRIVE
Q314
2SA1365-T112-1EF
MOTOR DRIVE
1N4002-A2
D322
10V
C452
470
0.01
C498
10k
R450
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
19P
CN303
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
21P
CN301
I-TP-STATE
O-TP-REC-MUTE
O-POWER
O-SP-RELAY/O-TP-ON
O-TU-CE
O-TU-DI
O-TU-CLK
I-TU-ANSD
I-TU-DO
I-LEVEL
O-FUNC-DATA
O-FUNC-CLK
D-GND
CD/USB-L
CD-A-GND
CD-A-GND
CD-A-GND
CD/USB-R
9V
M-GND
CD-M-GND
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
I-SW2
I-SW1/CDM-OPEN
I-SW3/CDM-CLOSE
COM0
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG1
1
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
M2-
O-M2-
O-M1-/CDM-M-
O-M1+/CDM-M+
O-M1+/CDM-M+
O-M1-/CDM-M-
O-M2+
O-M2-
M1-
SEG32
I-STOCK
I-CHACK
M2-
M2+
M1+
I-RST
MD0
MD2
I-KEY-WAKE-UP/VOL
O-USB-RXD
I-HOLD
I-KEY2
I-KEY1
O-TP-REC-MUTE
I-USB-TXD
O-TU-CE
O-TU-DI
O-TU-CLK
O-USB-SLEEP
O-LED-VOL
O-USB-RXD
I-RST
I-RMC
I-KEY1
I-KEY2
I-KEY
-W
AKE-UP/VOL
O-USB-RXD
O-USB-SLEEP
O-CD-CE
O-CD-CL
O-CD-DO
I-CD-DI
O-CD-RST
O-CD-M-MUTE
O-POWER
O-SP-RELAY
O-TU-CE
O-TU-DI
O-TU-CLK
I-TU-ANSD
I-TU-DO
I-LEVEL
I/O-I2C-DATA
O-USB-RST
I-USB-TXD
MD2
SEG11
SEG12
SEG13
SEG14
SEG15
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM3
COM2
COM1
COM0
I/O-I2C-DA
TA
I-TU-DO
I/O-I2C-CLK
TP-ST
ATE
I-CLOSE/OPEN
I-LEVEL
I-TU-ANSD
O-USB-RST
I-P-MONI
I-5V/9V
-DET
O-POWER
O-5V-ON
O-CD-CE
O-CD-CL
I-CD-DI
O-CD-DO
O-CD-M-MUTE
O-CD-RST
O-DIMMER1
O-CD-ON
O-LED-LCD
I-USB-TXD
O-TP-REC-MUTE
O-POWER
O-TP-REC-MUTE
TP-STATE
O-LED-VOL
O-M2+
M1-
O-LED-LCD
I-5V/9V-DET
O-CD-ON
O-DIMMER1
I-CLOSE/OPEN
O-5V-ON
I-P-MONI
SEG32
I-SW1/CDM-OPEN
I-SW2
I-SW3/CDM-CLOSE
I-CHACK
I-STOCK
I-RMC
I/O-I2C-CLK
M2+
M1+
SEG31
I-HOLD
I-KEY-WAKE-UP/VOL
MD0
I-RST
I-HOLD
O-SP-RELAY
PANEL BOARD
PROGRAMMING
)
FLASH
(
CD
DECK
MECHANISM
DISPLAY
OPTIONS
USB
DISC 3
DISC 2
DISC 1
– TUNING
EX-CHANGE
DISC SKIP/
"/1
REC TO
CD
(VOLUME)
ENTER
USB
FUNCTION
DSGX
SUBWOOFER
ON/OFF
EQ
TUNING +
O-TU-CE
M-GND
O-SP-RELAY/TP-ON
I-TU-DO
CD/USB-L
CD-A-GND
O-FUNC-CLK
I-TU-ANSD
O-FUNC-DATA
O-TU-CLK
CD-A-GND
I-LEVEL
9V
O-TU-DI
CD-M-GND
CD/USB-R
O-POWER
D-GND
CD-A-GND
R389
12k
18k
27k
47k
100k
R391
47k
100k
(Page 27)
(Page 35)
(Page 33)
(Page 33)
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
30
30
•
: Uses unleaded solder.
• See page 18 for Circuit Boards Location.
6-10. PRINTED WIRING BOARD – USB-JACK Section –
6-11. SCHEMATIC DIAGRAM – USB-JACK Section –
1
A
B
C
D
2
3
4
5
6
7
1
28
9
1
4
1
4
TP551
TP552
TP553
TP554
TP555
TP556
TP557
TP558
TP559
TP560
TP561
TP562
W550
R550
FB561
R551
FB562
R552
R561
R562
CN551
CN560
CN561
LP551
C550
C551
C552
JW501
JW502
JW503
JW505
C561
C565
D551
USB-JACK BOARD
11
(11)
1-881-329-
G
MAIN-AMP
BOARD
CN604
C
USB BOARD
CN903
CN560
(USB)
J552
PC IN
J551
PHONES
3
C
2
1
B
5
4
A
G
MAIN-AMP
BOARD
(2/2)
CN604
CN903
USB
C
BOARD
J552
C552
1000p
TP551
R551
22k
TP558
C550
0.1
TP553
TP556
TP555
TP555
C551
1000p
TP557
TP554
J551
TP552
R552
22k
1
2
3
4
5
6
7
8
9
9P
CN551
GND
SP-RELAY
HP-SW
HP-R
HP-L
HP-GND
AUDIO-R
A-GND
AUDIO-L
TP559
0
FB562
C565
1
TP560
4P
CN560
1
2
3
4
2
3
4
TP561
TP562
0
FB561
2.2
R562
2.2
R561
MC2840-T112-1
D551
R550
0
10V
220
C561
1
2
3
4
4P
CN561
VBUSGND
D+
D-
VBUS5V
USB-JACK BOARD
(USB)
PC IN
PHONES
(Page 26)
(Page 27)
(Page 33)
(Page 31)
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
31
31
•
: Uses unleaded solder.
• See page 18 for Circuit Boards Location.
6-12. PRINTED WIRING BOARDS – MAIN-AMP Section –
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
19
15
13
1
3
1
1
13
1
23
9
82
1
1
2
8
9
1
3
10
1
15
19
18
1
2
20
21
1
16
17
32
1
15
16
30
BCE
BCE
BCE
BCE
ECB
BCE
BCE
BCE
ECB
ECB
ECB
ECB
ECB
ECB
BCE
ECB
ECB
E C B
ECB
ECB
ECB
ECB
BCE
B C E
ECB
ECB
ECB
ECB
ECB
ECB
ECB
JW758
Q654
JW759
R210
D751
R211
R212
R213
JW760
R214
JW761
R215
JW762
R216
JW763
JW764
JW765
R601
JW766
R602
JW767
JW768
JW769
R605
R606
R221
R609
R223
JW770
JW771
R225
R801
JW772
R802
JW773
R227
R803
JW774
R610
R804
JW775
Q671
R61
1
R805
JW776
Q672
R612
R806
JW777
R613
R807
JW778
D190
R614
R808
JW779
R615
R809
R616
R617
R618
R231
R233
JW780
R810
R811
JW781
R235
CN601
CN602
(21P)
(EX6T/EX8T/EX9T)
CN603
(19P)
(EX6/EX8/EX9)
CN602
R236
JW782
CN603
JW783
R237
JW784
CN604
CN604
JW785
R621
CN605
CN605
JW786
R622
JW787
R623
JW788
R624
JW789
CN609
CN609
C201
C202
C203
C204
R241
C205
CN801
R242
C206
R243
JW790
R244
JW791
R245
CN61
1
LP601
JW792
R246
LP602
JW793
LP603
FAN901
DC FAN
DC FAN
JW794
LP604
JW795
LP605
R631
JW796
R632
JW797
R633
JW798
R634
JW799
R635
C211
R636
C212
R637
C213
R250
R638
C214
R251
R253
C600
R255
C601
C602
C603
C604
R641
C605
R642
C606
R643
C607
C608
C221
C609
C223
R261
C225
R262
R263
R264
C610
C61
1
C612
C613
R650
C614
R651
C615
R652
C616
C617
R654
C618
R655
C231
C619
R656
R657
C233
R658
C810
R659
C81
1
TP701
X801
C812
TP702
C237
C813
TP703
C238
C620
C814
TP704
C621
C815
TP705
C622
C816
TP706
C623
TP707
R660
C624
R661
C625
R662
C626
R663
R664
R665
C241
R666
C242
R667
R668
C820
R669
C821
C822
C630
C631
C632
C633
C634
R671
C635
R672
C636
R673
C637
R674
C638
R675
C251
R676
R290
R678
R291
R679
R871
C641
R872
C642
R873
C643
R680
R874
C644
R681
C645
R682
C261
C262
C263
C264
C265
C266
C267
C268
C650
C651
C652
C653
C654
C655
C656
JW603
C657
JW604
C658
JW800
JW801
JW802
JW803
JW804
JW805
JW807
JW808
JW809
IC201
IC202
D801
D802
JW810
JW811
C671
JW812
JW813
C673
JW814
C674
JW815
ET601
JW816
JW817
JW818
C290
C291
L701
L702
JW820
JW821
Q141
IC601
JW822
Q142
JW823
JW824
JW825
JW826
JW827
JW828
D240
D241
IC801
Q151
Q152
Q731
Q732
D251
R101
R102
R103
R104
Q741
R105
R106
R108
R109
R1
10
R111
R112
R113
R107
R114
Q751
R115
Q752
R116
Q753
R117
Q754
R1
18
Q755
TB701
R
L
R
L
SPEAKERS
(EX6/EX6T)
I0PEDANCE8SE 6ȍ
SPEAKERS HIGH
(EX8/EX8T/EX9/EX9T)
I0PEDANCE8SE 8ȍ
TB702
SPEAKERS LOW
EX8/EX8T/EX9/EX9T
EX9/EX9T
EX8/EX8T/EX9/EX9T
EX8/EX8T
EX6/EX6T
EX8/EX8T
EX8/EX8T/EX9/EX9T
EX8/EX8T
EX9/EX9T
EX9/EX9T
EX6T/
EX8T/
EX9T
EX6/EX6T
(EX8/EX8T)
(EX6/EX6T)
(EX9/EX9T)
(EX9/EX9T)
EX8/EX8T/ EX9/EX9T
EX8/ EX8T
EX8/EX8T
EX8/EX8T/EX9/EX9T
EX6T/EX8T/
EX9T
EX6/EX6T
EX8/EX8T/EX9/EX9T
EX9/EX9T
EX9/EX9T
EX9/EX9T
EX6/EX6T/EX9/EX9T
EX6/EX6T/EX9/EX9T
EX9/EX9T
EX9/EX9T
EX9/EX9T
EX6/EX6T/EX8/EX8T
EX6/EX6T
EX6/EX6T/
EX9/EX9T
EX9/EX9T
EX6/EX6T/
EX9/EX9T
EX6T/EX8T/EX9T
I0PEDANCE8SE 8ȍ
TB703
SUBWOOFER
CN801
3.FM
2.GND
1.AM
2.GND
1.AM
ANTENNA
FM/AM
IMPEDANCEUSE 4ȍ
Q756
Q181
R121
Q182
R122
R123
R124
R125
R701
R126
R702
R127
R703
R128
R705
R706
R707
R708
R709
Q190
D671
R131
R132
R133
Q770
R134
R710
Q771
R135
R711
Q772
R136
R712
R713
R715
R716
R719
C101
C102
C103
C104
R141
C105
CN701
R142
C106
R143
R144
R720
R145
R721
R146
R722
R723
R725
R729
C111
C112
C1
13
C1
14
R151
R152
R153
R154
R155
R731
R156
R732
R733
R734
R735
R736
R737
R738
C121
C122
C123
C124
R161
C125
C701
R162
C126
C702
R163
C703
R164
C704
R165
C705
R166
C706
R167
R168
R744
R745
R746
R747
R749
C131
C132
C133
C134
C711
A001
C712
C713
R750
C714
R751
C715
R752
C716
R753
R754
R755
R756
R757
R758
R759
C141
TP801
C142
TP802
TP803
TP610
TP804
R181
C721
TP611
TP805
R182
TP612
R183
C723
TP613
R184
R760
TP614
R761
TP615
R762
TP616
R763
TP617
R764
TP618
R765
TP619
R766
R767
R768
C151
C152
R190
TP620
R191
C731
TP621
R192
C732
R193
TP623
R194
R770
R771
R772
R773
R774
R775
C161
C162
C163
C164
C165
TP631
R
Y701
C166
C742
TP632
C167
TP633
C168
TP634
TP635
TP636
TP641
RY
71
1
TP642
TP643
TP644
JW701
TP645
JW702
TP646
JW703
TP647
JW704(EX9/EX9T)
TP648
JW705
TP649
Q601
JW706
Q602
JW707
JW708
JW709
C181
IC101
C182
IC102
Q607
TP650
TP651
R
Y721
Q609
D701
JW710
EX6/EX6T
EX9/EX9T
JW711
JW712
JW713
JW714
JW715
JR701
JW716
JW717
JW718
C190
JW719
C191
C193
C771
D71
1
C773
JW720
JW721
JW722
JW723
JW724
JW725
L801
JW726
L802
JW727
L803
JW728
D140
JW729
D141
Q241
D721
Q242
JW730
JW731
JW732
JW733
JW734
JW735
JW736
JW737
JW738
JW739
FL801
D152
D730
Q251
D731
D732
D733
JW740
JW741
JW742
JW743
JW744
JW745
JW746
JW747
JW748
JW749
TP691
R201
TP692
R202
TP693
R203
JW750
TP694
R204
JW751
TP695
R205
JW752
TP696
R206
JW753
TP697
R207
JW754
R208
JW755
Q651
JW756
Q652
JW757
Q653
3
1
1
3
2
W690
C697
C698
IC690
J
DECK
BOARD
CN502
(EX6T/EX8T/EX9T)
PANEL
BOARD
CN303
(EX6/EX8/EX9)
D
PANEL
BOARD
CN301
(EX6T/EX8T/EX9T)
E
USB-JACK
BOARD
CN551
G
H
PT-POWER
BOARD
CN012
(EX6/EX6T/EX8/EX8T)
I
PT-POWER
BOARD
CN010
(EX9/EX9T)
MAIN-AMP BOARD
11
(11)
1-881-322-
11
(11)
1-881-323-
REG
BOARD
ECB
R776
C776
D734
(Page 34)
(Page 34)
(Page 37)
(Page 30)
(Page 28)
(Page 28)
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
32
32
• See page 20 for Waveform. • See page 39 for IC Block Diagrams.
6-13. SCHEMATIC DIAGRAM – MAIN-AMP Section (1/2) –
9
I
15
L
3
F
8
A
6
16
E
M
D
7
C
2
11
12
13
G
J
H
5
4
14
K
10
B
1
(2/2)
MAIN-AMP
1
BOARD
CN012
H
BOARD
PT-POWER
I
CN010
BOARD
PT-POWER
1
IC B/D
IC B/D
IC B/D
2.3
0.8
2
6.5
1.4
0.1
2
0.7
15.4
13.2
0.6
0.2
8.3
9
1.9
0.6
0
0.1
2.4
0
13.3
4.8
13.1
0.1
*
0.1
0.6
4.5
13.8
0
13.3
0
3.9
0
0
0
0
0
0
0
0
0
0
0
0
0
*
9
2.9
9.7
2.4
0
*
0
-33.8
0
33.6
0
32
0
-31.9
0
0
0
0
2
0
0
32
0
33.6
0
0
0
-31.9
2
0
-33.8
0
0
0
0
0
0
0
0
0
2.5
0
2.3
1.7
0
4.5
4.3
4.5
0
3.3
3.2
3.2
3.2
0
7.5
0
1.9
1.9
8.6
4.5
0
4.5
0
(EX6/EX6T/EX8/EX8T)
(EX9/EX9T)
EX6/EX6T/EX8/EX8T
EX9/EX9T
EX9/EX9T
EX8/EX8T
EX6/EX6T
EX6/EX6T
EX6/EX6T
EX9/EX9T
(EX9/EX9T)
EX9/EX9T
(EX6/EX6T)
EX8/EX8T/EX9/EX9T
(EX8/EX8T/EX9/EX9T)
(EX8/EX8T/EX9/EX9T)
9
15.4
EX8/EX8T
EX8/EX8T/EX9/EX9T
EX9/EX9T
EX9/EX9T
EX6/EX6T/EX8/EX8T
EX9/EX9T
*1
*2
*2
*1
*1
(EX9/EX9T)
(EX8/EX8T)
*2
(EX8/EX8T)
(EX9/EX9T)
*3
(MX)
(EXCEPT MX)
*3
*3
*3
*4
*4
*4
*5
*5
*5
*4
(MX)
(EXCEPT MX)
*5
(MX)
(EXCEPT MX)
MAIN-AMP BOARD (1/2)
REG BOARD
IC801
IC102
IC101
IC690
2SC3052F-T1-LF
Q751
RELAY DRIVE
16V
100
C600
2SC3052F-T1-LF
Q190
STANDBY SWITCH
R194
47k
1k
R193
1k
R751
2SC3052F-T1-LF
Q181
PROTECT DETECT
100k
R181
10k
R183
10k
R184
4.7k
R182
0.01
C182
4700p
C181
2SC3052F-T1-LF
Q752
RELAY DRIVE
2SC3052F-T1-LF
Q753
RELAY DRIVE
R754
4.7k
R755
4.7k
10k
R192
ISA1235AC1TP-1EF
Q182
PROTECT DETECT
R756
47k
10k
R753
2.2k
R752
MA2J1110GLS0
D190
MA2J1
110GLS0
D751
R757
10k
E
ET601
2SC3052F-T1-LF
Q755
RELAY DRIVE
ISA1235AC1TP-1EF
Q756
RELAY DRIVE
ISA1235AC1TP-1EF
Q754
RELAY DRIVE
10k
R764
10k
R765
10k
R767
10k
R766
4.7k
R768
47k
R762
10k
R763
3.3k
R760
1.5k
R761
10k
R758
10k
R759
R750
0
0.1
C163
C126
100p
220
R161
470
R107
C103
470p
50V
C121
1
2.2k
R145
C111
3p
2SA2026
Q151
OVERLOAD DETECT
50V
C122
1
R127
470
R132
47k
C112
3p
220
R164
R1
14
1.5k
R112
47k
R101
2SA2026
Q142
OVERLOAD DETECT
22k
R143
C132
3p
R104
10k
MC2838-T1
12-1
D152
2W
R135
0.22
C131
3p
0.1
C164
C141
0.1
220
R163
220
R162
R128
470
2SA2026
Q152
OVERLOAD DETECT
R102
R154
22k
R156
2.2k
R151
1.2k
2.2k
R146
R152
1.2k
R191
100
1.2k
R142
0.1
C162
50V
C102
1
C106
100p
R134
1.5k
25V
C1
14
47
C104
470p
C142
0.1
C152
0.1
C105
100p
2W
0.22
R116
C191
4700p
0.1
C190
1.2k
R141
R105
47k
C151
0.1
2SA2026
Q141
OVERLOAD DETECT
MA2J1110GLS0
D140
22k
R144
R103
10k
C125
100p
50V
C101
1
R106
47k
2W
R136
0.22
R131
47k
R153
22k
470
R108
R126
47k
1k
R190
0.1
C161
2W
0.22
R115
R1
13
1.5k
MC2838-T1
12-1
D141
25V
C1
13
47
R133
1.5k
R155
2.2k
R111
47k
R125
47k
0
R808
1k
R803
TP801
0.1
C816
MC2840-T112-1
D801
1k
R801
1k
R802
0.1
C815
1k
R804
L801 39nH
MC2840-T112-1
D802
180k
R807
1
2
3
3P
CN801
AM
GND
FM
100
R805
TP802
L802 39nH
22k
R809
0.1
C81
1
0.047
C812
TP803
10k
R806
BPF
G
I
O
FL801
R701
MA2J1110GLS0
D721
C714
0.1
R720
100k
C705
4700p
0.1
C704
TP704
R725
10
TB701
4P
1
Rch(+)
2
Rch(–)
3
Lch(–)
4
Lch(+)
TP703
C716
4700p
TP705
1uH
L702
C723
0.1
R668
33k
TB702
4P
1
Rch(+)
2
Rch(–)
3
Lch(–)
4
Lch(+)
C721
0.1
0.1
C702
D711
MA2J1110GLS0
MC2838-T112-1
D730
R715
10
0.1
C701
R723
R711
R712
C711
0.1
10
R708
C715
4700p
10
R705
C713
0.1
R729
100k
4.7k
R745
R703
0.1
C703
R713
R716
10
10
R707
R719
100k
TP701
R702
100k
R710
RY711
RELAY
TP702
C712
0.1
1uH
L701
C706
4700p
4.7k
R746
RY701
RELAY
JW721
D701
MA2J1110GLS0
R669
33k
R721
TB703
2P
1
2
RELAY
RY721
100k
R709
R722
10
R706
C165
50V
10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
19
18
17
16
20
21
22
23
STK433-870-E
IC102
4CH POWER AMP
-PRE
-VCC
+VCC
HI-LO+
HI-LO-
HI-RO+
HI-RO-
+PRE
SUB
GND
HI-LIN+
HI-LIN-
ST
-BY
HI-RIN-
HI-RIN+
LOW
-LIN-
LOW
-LIN+
LOW
-RIN+
LOW
-RIN-
LOW
-LO-
LOW
-LO+
LOW
-RO-
LOW
-RO+
2SC3052F-T1-LF
Q671
AUDIO LEVEL DETECT
1k
R675
1k
R678
2SC3052F-T1-LF
Q672
AUDIO LEVEL DETECT
4.7k
R737
R734
47k
2SC3052F-T1-LF
Q732
FAN MOTOR DRIVE
R738
470
TP707
50V
4.7
C731
R732
15
15
R731
50V
10
C732
R735
4.7k
TP706
KTA1266GR-AT
Q731
FAN MOTOR DRIVE
MAZ8043GMLS0
D731
15
R733
R736
10k
1
2
3
3P
CN701
VDD+
VDD-
VDD+
MAZ8051GLLS0
D732
25V
C133
47
25V
C134
47
R121
5.6k
R122
5.6k
R123
10k
R124
10k
1
C671
47k
R679
100k
R673
47k
R674
100k
R676
TP641
TP642
TP643
TP644
TP645
TP646
TP647
TP804
TP805
10
R810
C123
0.015
C124
0.015
32.768kHz
X801
1k
R680
MC2840-T1
12-1
D671
50V
22
C820
50V
4.7
C813
50V
1
C814
10V
470
C810
2SC3052F-T1-LF
Q741
FAN MOTOR DRIVE
R744
22k
R747
22k
10V
C742
220
R749
10k
1
2
3
4
5
6
7
8
9
10
11
12
13
13P
CN601
DC-DET
PROTECT
9V
AU-GND
UNREG
-B
-B
+B
+B
PA-GND
L-GND
R-GND
SW-GND
1
2
3
4
5
6
7
8
9
10
10P
CN611
DC-DET
PROTECT
9V
AU-GND
UNREG
-B
+B
PA-GND
L-GND
R-GND
TP648
TP649
TP650
TP651
50V
1
C771
220k
R775
R772
12k
16V
100
C773
1000p
C776
2SC3052F-T1-LF
Q770
PROTECT DETECT
R774
10k
220k
R773
R770
22
2SC3052F-T1-LF
Q771
PROTECT
DETECT
2SC3052F-T1-LF
Q772
PROTECT
DETECT
R771
22
1
2
3
1
2
3
3P
CN609
IN
GND
OUT
1
C673
470
R682
50V
2.2
C674
0
R681
JW704
JW702
JW701
JW703
30
29
28
27
26
25
24
7
6
5
4
3
2
1
18
19
20
21
22
23
8
9
10
17
16
11
12
13
14
15
LV23401V-TLM-H
IC801
AM/FM DET,OSC,
MIX,PLL,IF AMP
AM ANT
AM REF
AM Vt
GND AM
VREF1(4.3V)
MPX OUT
AM AGC
GND1
L-OUT
R-OUT
VCC LOW
AM LCF
SD OUT
ST
OUT
VCC
CLK IN
ST
ADJ
CE
CL
DI
DO
VREF2(3.3V)
GND3
L1
VREF3(4.3V)
L2
SD ADJ
FLL
CAP
GND4
FM ANT
1
9
8
7
6
5
4
3
2
15
14
13
12
11
10
IC101
STK433-070-S-E
2CH POWER AMP
33k
R811
L803
AM ANT
1
2
3
4
6
5
JW603
JW604
50V
22
C193
1
C822
1
C821
C168
C167
MAZ8051GLLS0
D733
BUS1
1
2
3
4
5
7
8
9
10
11
12
13
14
15
16
17
18
19
20
0.1
C698
3P
W690
IN
GND
OUT
C697
0.1
IO
G
IC690
KIA7809API-U/PF
1
2
3
R168
220
R166
220
R167
220
R165
220
50V
C166
10
47k
R776
MA2J1110GLS0
D734
O-TU-DI
O-TU-CE
I-TU-ANSD
I-LEVEL
O-TU-CLK
I-TU-DO
O-POWER
HP-SW
O-SP-RELAY/O-TP-ON
3STATE-OUT
(CHASSIS)
–
+
FAN901
DC FAN
SPEAKERS LOW
SPEAKERS
SPEAKERS HIGH
SUBWOOFER
FM/AM
ANTENNA
+
–
,03('$1&(86(ȍ
,03('$1&(86(ȍ
,03('$1&(86(ȍ
,03('$1&(86(ȍ
+9V REG
-PRE
-VCC
+VCC
LO+
LO-
RO+
RO-
+PRE
SUB
GND
LIN+
LIN-
ST
-BY
RIN-
RIN+
C167,168
100 50V
220 50V
R101,102
5.6k
6.2k
R701-703
47
68
R711-713
47
68
R721-723
47
68
(Page 33)
(Page 35)
(Page 35)
Click on the first or last page to see other HCD-EX6 / HCD-EX6T / HCD-EX8 / HCD-EX8T / HCD-EX9 / HCD-EX9T / MHC-EX6 / MHC-EX6T / MHC-EX8 / MHC-EX8T / MHC-EX9 / MHC-EX9T service manuals if exist.