Sony HCD-GX25 / MHC-GX25 Service Manual ▷ View online
29
29
HCD-GX25
3-11. SCHEMATIC DIAGRAM — PANEL SECTION — • Refer to page 20 for Waveforms.
(Page 27)
(Page 26)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
E
F
G
H
I
J
D
MAIN BOARD CN311
C
MAIN
BOARD
CN304
1.6
3.6
3.6
3.4
3.4
1.2
0.8
0.8
8.6
3.3
3.1
3.3
3.5
0
3.3
3.6
0
0
0
3.3
3.4
0
0
0
0
0
3.6
3
1.9
3.3
0
0
3
1.5
3.3
1.4
1.7
1.6
1.7
3.3
3
1.6
3.3
3.3
3.3
3.3
-1.5
-1.5
-1.5
3.6
3.6
-1.5
3.2
0
3.2
0
0
0
-25.8
-25.8
-25.8
-25.8
-25.8
-25.8
3.3
-25.8
3.3
0
3.4
1.3
7.5
3.5
0
7.5
4
3.3
0
0
8.6
8.6
0.7
8.6
9.7
5.7
9
9
0.9
1.2
0
9
9
0
1.2
0.4
1
5.7
5.2
0
IC602
9P
2P
2P
Q609, 610
BUFFER
Q618
CAPM
DRIVE
Q616
TAPE SOL A
DRIVE
TAPE DECK BLOCK
SUPPLIED WITH
THE ASSEMBLED
BLOCK
Q617
TAPE SOL B
DRIVE
GAME
DISC1
3P
Q601 RESET SWITCH
31P
CN604
RM601
DISC2
DISC3
/
GAME
MIXING
DISC SKIP/
EX-CHANGE
x
X
G
Z
.
>
M
+
m
–
13P
POWER
HL-30105Q2AT
HL-30805Q2IT
(1STREAM)
GAME
LED607 – 609, 612
HL-30105Q2AT
Q602 – 604, 607
LED DRIVE
REMOTE BOARD
1 STREAM LED BOARD
TAPE A/B
CD
VOLUME
TUNER
/BAND
IC601
LC876756C-51H7-E
IC601
EVER +4V
REG
IC602
RESET
IC603
SYSTEM CONTROL,
FLD CONTROL
PANEL BOARD
30
30
HCD-GX25
(Page 24)
3-12. PRINTED WIRING BOARD — POWER AMP SECTION — • Refer to page 19 for Circuit Boards Location.
D2
H-10
D3
F-10
D4
F-10
D5
G-10
D6
F-10
D11
F-7
D12
F-9
D13
F-9
D16
F-11
D17
G-11
D18
B-3
D19
B-3
D20
A-3
D23
E-4
D24
G-4
D25
E-4
D29
E-5
D30
E-5
D31
D-4
D32
D-4
D33
E-4
D34
E-4
D35
E-4
D36
E-4
D37
D-4
D38
D-4
D39
F-6
D40
F-6
D41
F-4
D42
F-4
D43
F-6
D501
D-4
D502
B-4
D503
D-4
D504
B-4
D505
C-3
D506
B-4
D507
C-4
D508
A-4
D509
D-2
D510
B-4
D511
G-4
D513
I-5
D514
F-8
D515
I-10
D584
I-4
Q5
F-8
Ref. No.
Location
• Semiconductor Location
Ref. No.
Location
Q6
F-8
Q7
G-7
Q8
F-8
Q9
F-8
Q10
B-3
Q11
B-3
Q12
A-3
Q13
A-4
Q17
G-4
Q18
F-4
Q19
F-3
Q20
E-4
Q21
D-4
Q22
E-4
Q23
E-4
Q24
E-4
Q501
F-2
Q502
C-2
Q503
E-2
Q504
B-2
Q505
F-2
Q506
D-3
Q507
E-3
Q508
C-2
Q509
E-3
Q510
C-3
Q511
D-4
Q512
B-3
Q513
C-4
Q514
A-3
Q515
C-4
Q516
B-4
Q517
C-4
Q518
B-4
Q519
C-4
Q520
B-4
Q521
C-4
Q522
B-4
Q523
C-4
Q524
B-4
Q525
C-4
Q526
B-5
Q527
F-5
Q529
I-4
Q530
H-6
Q534
I-9
Q535
I-8
Q536
I-8
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
Q527
C530
R561
R562
R592
R576
R575
R577
R566
C1
C2
C3
C4
C5
C6
C7
C8
JR514
JR515
JR516
R32
R34
R35
R36
R33
R37
D16
D17
D12
D13
Q8
R17
Q6
Q5
R21
R16
R20
R6
R7
R8
R9
R10
R19
R22
Q9
R23
R11
R12
R14
R18
R4
Q7
R40
R38
Q536
R581
R563
R564
R567
R568
R580
R83
R58
R78
Q17
R72
R79
TH502
R516
C504
R524
R522
R518
R520
Q516
R526
R528
C506
C508
Q520
Q524
Q518
Q522
R534
R536
C510
R532
R530
D502
D504
R538
R542
R544
R546
C503
C505
C507
C509
D503
D501
Q515
Q519
Q523
Q517
Q521
R515
R523
R521
R517
R519
R525
R527
R533
R535
R531
R529
R537
R541
R543
R545
TH501
R505
R507
R509
C501
Q505
R511
R513
R506
R508
Q506
C502
R510
R512
R514
Q10
Q11
D509
R52
R51
R50
C25
Q12
Q13
C26
D20
R46
R49
R48
R47
D19
D18
R550
R554
R556
C520
R560
Q526
R558
C538
D510
R540
R559
Q525
R549
C519
R555
R553
C35
C36
Q20
R82
R85
R76
Q21
R93
R86
R91
R71
Q22
R60
C42
Q23
R59
Q24
C43
R70
R75
R94
R96
R54
R41
R77
R69
C40
C40
R53
R43
R26
R27
C45
R42
C30
R64
R62
R98
C31
R61
R63
R97
C523
JR511
JR512
R65
R66
R67
R68
R73
D39
D40
R13
D11
D511
D24
D513
R569
R591
D514
R90
R548
D508
Q510
D507
R539
R547
R557
Q509
Q507
R45
Q508
D31
D32
D37
D38
D30
D29
D23
D36
D25
D33
D34
D35
D515
R81
C534
C535
C532
C533
C525
C527
C524 C526
R103
R104
R105
R106
R107
R108
R109
R110
R29
R100
R31
R574
R578
R99
R55
R102
R56
R44
R74
JR513
R573
R579
R572
R582
D43
R584
JR517
R28
R39
C542
C544
C541
C543
Q529
R599
D584
R500
Q530
R601
R602
R603
R604
R594
R593
R589
JR2
R92
R95
C37
C41
C34
C529
RY501
CN501
CN502
JW1
D4
D5
D6
C11
C12
JW544
JW571
JW577
JW578
JW579
JW580
JW581
JW585
JW586
JW28
JW29
JW30
JW34
JW38
JW39
JW40
JW41
JW43
JW53
JW58
JW59
JW587
C22
C23
C24
C531
Q535
Q534
JW545
Q18
Q19
L501
JW47
Q502
Q504
Q512
Q514
C512
R502
R504
C511
Q501
Q503
Q511
Q513
R501
R503
C514
C518
C522
C521
C513
C517
C33
EP501
JW511
JW514
JW521
JW523
JW528
JW532
JW525
JW527
JW531
JW48
JW49
D41
JW42
JW583
JW584
JW2
JW56
JW57
JW529
JW524
JW530
JW512
JW574
JW573
D506
D505
JW7
JW12
L502
JK502
EP502
JW9
JW16
R570
R571
JW11
JW15
JW6
JW10
JW540
JW13
JW45
JW46
JW501
LP902
LP903
JW538
JW537
JW539
JW14
JW17
JW18
JW25
JW26
JW60
JW61
JW62
JW63
JW555
JW64
D42
JW519
JW526
JW517
JW588
JW546
CN1
EP01
JW575
JW52
JW37
JW36
JW44
JW33
JW35
C9
C10
JW54
JW31
JW55
JW32
JW51
JW513
JW520
JW516
JW534
C13
C584
JW3
JW547
JW549
JW548
JW65
JW68
JW69
JW72
JW551
JW552
JW73
JW74
JW75
JW589
JW591
JW594
JW595
JW533
JW542
JW554
JW535
JW536
JW8
JW550
JW582
JW590
JW556
JW522
JW67
JW66
JW71
JW70
JW20
JW23
JW76
JW77
JW78
JW515
JW541
JW543
JW592
JW593
D2
JW27
JW21
JW24
JW50
D3
(Page 24)
(Page 33)
31
31
HCD-GX25
(Page 26)
3-13. SCHEMATIC DIAGRAM — POWER AMP SECTION (1/2) —
D509
D510
R45
R46
CN501
CN502
R584
C584
D
584
R591
R592
R562
JW1
R79
D33
R72
Q17
C34
R70
R77
R54
D37
R75
R43
Q22
C37
R85
R94
R69
R98
R560
R556
R558
R559
R557
R554
C514
R555
R553
R539
R545
Q519
R531
R523
R527
C511
R547
D501
R533
R535
R530
D502
Q520
R546
R540
R532
EP501
D508
R534
R536
C512
R548
R520
R526
R528
R61
R63
D31
D32
R62
R41
R64
R42
R27
R26
D38
R52
Q
11
R51
R50
Q
10
D19
D18
R49
R48
R47
D20
Q13
R518
R510
R506
R512
Q
50
6
R524
D504
TH502
R511
R509
Q
505
R505
R519
R525
R517
D505
D507
TH501
D503
R529
D
42
D
41
C530
Q527
R90
R86
R99
C36
R95
Q20
D24
R92
R78
R58
C42
R59
Q
23
R60
R56
R55
R74
D34
D36
JW2
D35
C30
C45
R53
C40
R91
R96
C31
Q21
R76
D23
D29
R542
R544
C513
R538
Q
523
R543
R541
C509
R537
C507 C505
C503
Q
52
1
Q
51
3
Q
51
1
Q507
Q509
R501
R503
Q
508
C510
C506
Q510
C504
R502
R504
C501
C502
R67
R66
C26
R65
C25
R68
Q12
R561
C523
Q
51
6
D506
C508
R97
Q
24
C35
Q514
Q
512
Q
522
Q
524
Q515
D25
D30
Q518
Q517
C521
C517
Q525
R569
C519
R599
R549
R550
C520
C518
C522
Q526
R500
C538
R82
C41
Q19
R71
C43
R93
R81
Q18
R83
C33
R521
Q501
R507
R513
Q503
R515
R522
Q502
R514
R508
Q504
R516
(Page 27)
(Page 32)
32
32
HCD-GX25
(Page 34)
(Page 31)
3-14. SCHEMATIC DIAGRAM — POWER AMP SECTION (2/2) —
D6
D3
D5
D4
D2
C13
C23
R20
R19
R18
R11
R10
D13
R21
R23
R22
R40
C24
R39
R38
D17
D16
R37
R34
R16
R17
D40
D12
R593
C529
R576
R575
D513
R577
R594
R589
D511
L502
R570
R571
L501
EP502
R105
R104
R106
R103
R108
R107
R110
R109
C9
C10
C6
C5
C8
C7
C11
C12
R563
R564
Q534
R567
R568
C531
JW501
Q536
Q535
R580
R581
R29
R100
R44
R73
D11
R4
D43
D39
D514
R102
Q5
Q6
R28
Q529
Q530
C535
C534
C526
C527
C544
C543
R574
R578
C541
C542
C525
C524
R582
R572
R579
R573
R604
R602
R603
R601
C532
C533
R13
Q8
Q9
Q7
EP01
CN1
RY501
R31
D515
JK502
C1
C2
C3
C4
JW3
R6
R8
R7
R9
R12
R14
C22
R32
R33
R35
R36
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