Sony HCD-GN70V / MHC-GN70V Service Manual ▷ View online
HCD-GN70V
45
45
7-16. SCHEMATIC DIAGRAM – DISPLAY SECTION –
•
See page 58 for Pin Function Description.
KARAOKE/MPX
FL601
CN601
D106
D107
S758
S756
S754
S753
S752
S751
S779
S781
S782
S783
S784
S785
S786
S787
CN604
Q602
Q603
Q604
R632
R636
R634
R633
R637
R635
R670
D604
D601
D605
D606
D603
D602
D
1
01
D
1
02
D
1
03
D
1
04
D
1
00
R130
R129
C122
R137
C124
R136
R139
C123
R140
R138
C118
D105
R127
R128
C121
C120
R125
R124
C119
R123
C114
R118
R119
R117
C115
C110
C105
R107
R113
R111
R106
R112
C109
C104
C107
R110
IC101(2/2)
C106
R109
R108
R133
R132
R104
C102
C101
R102
R103
IC101(1/2)
C653
C651
C652
R808
R807
C622
C712
C
62
8
C
62
7
C
62
6
C
6
25
C
62
4
C711
C710
L602
C618
C620
C619
C112
R116
C111
R114
R115
R131
R134
R120
R121
C116
IC102(2/2)
R122
C117
NO602
R105
R628
R626
R627
R629
R630
R779
R782
R781
R783
R784
R785
R786
R787
R631
R756
R755
R757
R754
R753
R752
R758
R751
R662
R663
R
6
55
R
65
6
R661
R652
R
658
R
659
R
6
57
R654
R822
R823
C623
IC601
R660
R
8
18
R
8
19
R
8
2
0
R
8
21
R
8
17
R647
R646
D610
R645
C153
C154
C155
C156
C157
C152
C125
S755
S757
X601
L601
R653
Q100
IC102(1/2)
Q807
Q808
Q707
Q601
Q605
Q606
C100
19P
FFC-S
10EDB40
10EDB40
17P
FFC-L
BA1A4M
BA1A4M
BA1A4M
680
10k
10k
680
10k
10k
JW
SEL5923A
AMBER
SLR325VC
RED
SEL5923A
AMBER
SEL5923A
AMBER
SEL5923A
AMBER
SEL5923A
AMBER
1S
S
13
3
T-7
2
1S
S
13
3
T-7
2
1
S
S
13
3
T
-7
2
1S
S
13
3
T-7
2
*
1
*1 D100
MTZJ-T-77-3.3B
: TH
MTZJ-T-72-3.3B
: EXCEPT TH
4.7k
4.7k
100
10V
10V
22k
10
50V
68k
330
100
10V
10V
100
1k
10
50V
1SS133T-72
220
470k
4.7
50V
0.22
50V
100k
100k
10
50V
680
10
50V
100k
100k
680
0.22
50V
0.22
50V
0.22
50V
100k
100k
680
100k
100k
10
50V
10
50V
0.1
47k
NJM4565D
0.1
1.5k
1.5k
100k
100k
47k
0.47
0.47
1.5k
1.5k
NJM4565D
10
50V
0.1
10
50V
100k
100k
4.7
50V
0.01
0
.0
1
0
.0
1
0
.0
1
0
.01
0
.0
1
0.01
0.01
JW
0.01
0.01
47
10V
0.022
47k
0.022
1.5k
1.5k
100k
100k
1.5k
1.5k
0.0033
NJM4565D
47k
0.0033
5P
AMP-L
680
330
330
330
330
330
470
1k
680
1.5k
1.5k
2.2k
3.3k
4.7k
680
2.2k
1.5k
3.3k
1.5k
1k
680
4.7k
470
10k
10k
10
0
10
0
10k
10k
1
5k
15k
1
5k
100
1k
1k
0.001
MB90M407PF-G-129
-BND
1M
1
80
1
80
1
8
0
1
20
1
20
100
100
MTZJ-T-72-5.1B
10k
220p
220p
220p
220p
220p
220p
0.1
50V
4MHz
JW
10k
2SC3623
BUFFER
NJM4565D
BA1L3Z
BA1L3Z
BA1A4M
INV.
BA1A4M
INV.
2SB1116
SWITCH
2SB1116
SWITCH
10
50V
66
65
48
60
61
69
70
71
73
68
12
13
14
15
16
17
18
19
20
21
22
24
25
26
27
28
29
30
10
9
8
7
6
5
4
3
2
1
100
99
98
97
96
95
94
66
7
9
8
0
77
7
7
93
87
88
89
90
91
92
52
53
54
55
56
57
58
59
31
32
33
34
35
36
37
38
39
40
41
43
44
61
60
49
51
6
4
48
72
7
3
72
67
6
7
6
8
6
9
7
0
7
1
8
9
1
0
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
20
21
22
24
25
26
27
28
29
30
31
32
33
34
35
36
3
7
3
8
3
9
4
0
4
1
44
4
5
4
6
7
6
5
4
3
2
1
1
00
9
9
9
8
9
7
9
6
9
5
9
2
9
1
9
0
8
9
8
8
8
7
45
46
4
3
5
9
5
8
93
94
79
65
80
52
53
54
55
56
57
64
FLUORESCENT
INDICATOR
TUBE
REC
PAUSE/START
REC
PAUSE/START
+
-
ALBUM +
ALBUM -
DISPLAY
BUFFER
BUFFER
KEY CONTROL
CONTROL,
LED DRIVE
Q602-604
CD SWITCH
BOARD
(Page 43)
VOLUME
BOARD
(Page 43)
MAIN
BOARD
(3/3)
(Page 41)
HCD-GN70V
46
46
7-17. PRINTED WIRING BOARDS – POWER AMP SECTION –
•
See page 26 for Circuit Boards Location.
D501
E-3
D502
D-2
D503
D-4
D504
D-5
D506
C-7
D507
B-5
D508
H-2
D509
H-2
D510
C-8
D511
B-5
D541
G-3
D543
H-4
D551
E-3
D581
F-2
IC501
D-4
Q501
E-4
Q503
G-2
Q504
F-2
Q505
B-2
Q506
B-2
Q510
F-6
Q511
F-6
Q513
H-6
Q514
B-2
Q515
H-6
Q516
H-5
Q517
H-5
Q518
B-2
Q551
E-4
Q581
F-2
• Semiconductor
Location
Ref. No.
Location
Q581
Q503
E
E
E
Q504
C581
R561
R509
R559
C507
C508
C519
C520
C522
C521
C557
C558
TH501
Q514
R531
R522
Q506
Q505
D504
D
503
R508
R
558
Q501
Q551
R555
IC501
C516
Q510
C517
Q511
C546
C596
C542
C592
D541
R
519
R
581
CN
503
C551
R551
R552
C553
R553
C554
R518
C552
C503
R
503
C504
C509
R512
R511
R540
R547
R562
R563
R548
D507
D511
TM501
C559
Q516
Q517
Q513
Q515
C526
R564
R565
D508
D509
R591
R541
R
527
R521
D543
R542
R507
R505
C512
EP502
R513
D581
R517
R515
R514
R557
R592
CN504
R573
R566
R571
R567
R570
R569
R569
R568
R572
R545
R546
R582
R516
R528
R506
R556
R554
D551
D501
D501
R504
R529
R530
D502
JW780
JW781
JW783
JW785
JW786
JW787
JW788
JW
790
JW
791
JW
792
JW
793
JW
794
JW795
JW
796
JW797
JW
798
JW
799
JW800
JW801
JW802
JW803
JW804
JW805
JW806
JW807
JW
809
JW
810
JW
811
JW
812
JW
813
JW
814
JW816
JW817
JW818
JW
820
JW
821
JW
822
JW
823
JW
824
JW828
JW
829
JW
830
JW
831
JW
832
JW
833
JW
834
JW835
JW836
JW
837
JW838
JW840
JW841
JW842
JW843
JW844
JW
847
JW
848
JW
849
JW
850
JW
851
JW
852
JW
853
JW
854
JW
855
JW
856
JW
857
JW858
JW
859
JW
860
JW861
JW862
JW863
JW864
JW865
JW866
JW867
JW868
JW
869
JW870
JW874
JW878
JW
879
JW
880
JW
881
JW882
JW815
PL005
PL006
PL007
R501
R502
C502
C501
JW819
RY501
RY502
D506
D510
R539
C523
C524
EP501
C527
C513
JW893
JW894
PL003
JW
891
JW
890
JW
887
JW
886
JW885
JW884
JW871
JW826
JW827
JW876
JW875
R
520
R
524
C541
C544
C545
JW
789
C591
JW897
JW
846
JW
845
JW839
PL010
JW782
JW873
JW896
JW
877
JW899
JW900
TH502
JW898
CN502
JW808
R523
R532
R533
R577
Q518
R578
JW927
JW926
E
E
E
E
E
E
E
E
E
11
(11)
1-686-932-
POWER AMP BOARD
FRONT SPEAKER
(IMPEDANCE
USE 6–16Ω)
SURROUND
SPEAKER
(IMPEDANCE USE 24Ω)
+
-
+
-
L
R
+
-
+
-
L
R
+
–
+
–
D
E
MAIN
BOARD
(Page 38)
MAIN
BOARD
(Page 38)
1
6
O
TRANS
BOARD
(Page 48)
E
E
2
3
4
5
6
7
8
A
1
B
C
D
E
F
G
H
HCD-GN70V
47
47
7-18. SCHEMATIC DIAGRAM – POWER AMP SECTION –
R501
R551
R504
D501
D551
R509
R559
R582
R581
C581
R561
Q506
Q505
R524
R520
C544
C545
R592
R533
R532
JW566
JW567
D506
Q510
R527
R528 R529
R530
C516
D510
D507
JW
885
CN503
CN504
D502
R508
R558
NO502
6P
R578
C502
C552
C501
C551
C554
C504
R512
R517
R516
R513
R515
R514
D581
R519
C559
C509
R521
R522
Q514
C512
RY501
R545
C524
C523
C520
0.01
R563
10
C522
0.01
C519
0.01
R562
10
C521
0.01
RY502
R548
R547
D511
JW
884
JW890
JW886
TH502
R571
TH501
JW891
JW887
R577
JW927
JW871
C596
R531
R555
R556
R557
R507
Q501
Q551
D503
D504
C503
R503
R553
C553
R511
D543
C546
R542
EP501
C513
C542
R541
C592
R591
C591
C541
R523
R502
R552
R554
R518
R506
JW926
C527
R565
R564
D509
D508
C517
R546
R573
R566
R567
R570
R569
Q581
Q504
Q517
Q516
R572
R568
Q518
Q513
Q515
C526
C507
C508
Q511
C558
C557
EP502
R505
D541
R540
R539
IC501(1/2)
IC501(2/2)
Q503
1k
1k
56k
1SS133T
-72
1SS133T-72
10
1/2W
10
1/2W
33k
33k
22 50V
100
1/4W
FR
2SC2785
2SC2785
3.3k
1W
3.3k
1W
0.1
100V
0.1
100V
100k
47k
100k
1SS133T
2SC2785
56k
47k
22k
22k
100
10V
1SS133T
1SS133T
13P
6P
1SS133T
0.1
5W
5W
0.1
5W
560k
1000p
1000p
4.7
50V
4.7
50V
100
10V
10V
100
10V
10V
1
1/4W
FR
10k
10k
33k
22k
2.2k
1SS133T-72
68k
22
100V
22
100V
100k
100k
2SC2785
0.01
RELAY
24V
1k
0.01
25V
0.01
25V
47k
47k
1SS133T
47k
100
2200
100V
270k
820
*3
100k
100k
2SC1841
OVER LOAD
DETECT
2SC1841
OVER LOAD
DETECT
*1
MTZJ-T-77-18C
MTZJ-T-72-18C
*2
MTZJ-T-77-18C
MTZJ-T-72-18C
220p
330
330
220p
100
1/4W
FR
D5SBA20
2200
100V
100k
TERMINAL, EARTH
0.01
4700
50V
100k
4700
50V
100k
0.1
0.1
*4
56k
56k
56k
33k
*3
0.01
25V
22k
22k
1SS133T
1SS133T
10
50V
22k
100k
10k
10k
10k
47k
2SC1841
STANDBY
STANDBY
SWITCH
2SC1841
STANDBY
STANDBY
SWITCH
2SA1175TP-HFE
2SC2785
100k
10k
2SC2785
FAN MOTOR
ON SWITCH
2SC2785
2SA1175TP-HFE
10
50V
0.068
0.068
2SC2785
RELAY
SWITCH
0.068
0.068
EARTH
820
D5SBA204101
STK412-150
POWER AMP
POWER AMP
2SA1207-AA
STANDBY
SWITCH
R CH
L CH
R CH
R GND
L CH
L GND
REAR R-CH
REAR L-CH
VH
VH
VL
VL
REAR R GND
560
2W
+
+
+
–
–
–
–
+
R
L
R
L
(IMPEDANCE USE 6-16Ω)
FRONT SPEAKER
(IMPEDANCE USE 24Ω)
SURROUND SPEAKER
TM501 8P
RELAY DRIVE
FRONT SPEAKER
RELAY DRIVE
FRONT SPEAKER
SWITCH
OVER
LOAD
LOAD
DETECT
SWITCH
DETECT
Q505,506,514
TEMPERATURE
RELAY DRIVE
SURROUND SPEAKER
PROTECT
RELAY DRIVE
SURROUND SPEAKER
PROTECT
EXCEPT TH
TH
*1 D504
33k
15k
EXCEPT TH
TH
*3 R506,D556
EXCEPT TH
TH
*1 D503
100k
150k
EXCEPT TH
TH
*4 R523
STK412-150
560
2W
(Page 49)
MAIN
BOARD
(3/3)
(page 41)
MAIN
BOARD
(3/3)
(page 41)
HCD-GN70V
48
48
7-19. PRINTED WIRING BOARDS – TRANS SECTION –
•
See page 26 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
D971
B-4
D972
B-6
D973
B-6
D974
C-6
D975
C-6
D977
D-3
IC971
A-5
Q971
B-4
F978
F975
F977
R952
JW906
JW907
JW908
JW909
F974
PL002
PL008
R941
D977
C941
CN997
CN998
F976
PL009
JW912
JW914
JW911
JW913
NO973
JW928
JW929
C971
T972
S901
IC971
D974
D975
C973
D971
Q971
RY971
CN974
C975
C976
C977
JW921
D972
D973
C978
R974
R975
PL001
PL004
JW920
JW924
JW923
JW925
TH
TH
TH
B100
CN976
CN971
E
TRANS BOARD
SUB TRANS BOARD
11
(11)
1-686-930-
11
(11)
1-686-931-
1
2
3
4
1
1
7
1
6
4
1
4
1
3
1
2
EXCEPT TH
EXCEPT TH
AC IN
120V
220V
230-240V
t
t
VOLTAGE SELECTOR
*
* NOT REPLACEABLE:
BUILT IN TRANSFORMER
BUILT IN TRANSFORMER
T910
POWER TRANSFORMER
H
O
MAIN
BOARD
(Page 38)
POWER AMP
BOARD
(Page 46)
F
MAIN
BOARD
(Page 38)
TH
TH
EXCEPT TH
EXCEPT TH
EXCEPT TH
2
3
4
5
6
7
A
1
B
C
D
E
F
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