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39
HCD-GNX60/GNX70/GX9900
HCD-GNX60/GNX70/GX9900
7-14. SCHEMATIC DIAGRAM – MAIN BOARD (3/3) –
• See page 48 for Waveforms.
JW382
D583
D581
JW580
Q582
Q581
R577
Q580
R575
C580
CN580
C581
Q585
R580
R579
R305
C306
C311
R339
R304
C305
R303
R319
C314
R302
R301
C303
C304
C356
R355
R354
C355
R353
R369
C364
R352
C353
R351
C312
R309
R308
R310
R311
R312
R306
C308
C561
C560
D560
CN510
CN503
CN508
C382
C310
L302
100uH
C550
C551
D550
C552
R551
EPT560
R553
R548
R547
R543
R546
C544
C545
R545
R544
C542
C543
R541
C540
C541
R542
Q584
C562
C563
C564
C565
R182
R183
R185
R184
R186
R187
C180
C181
R393
R397
R391
R392
R380
C383
C384
L371
C380
C378
L370
C373
R374
R371
C372
R370
T301
C371
C370
R377
R378
C377
C379
R379
R386
R395
R394
L372
100uH
R389
C361
C376
CN507
C375
R387
R385
R381
R382
R383
R384
R396
R390
R399
C566
D563
D562
D561
CN501
CN502
R180
R181
R307
C307
NO503
R372
R373
R375
R376
R388
C386
C374
C385
C359
C309
C301
C351
C391
C553
IC550
R540
IC301
Q543
Q541
C381
Q376
Q375
Q374
Q373
Q372
Q371
Q377
Q379
Q381
Q382
Q383
Q378
Q380
Q370
C354
Q545
IC560
IC561
D551
Q550
Q181
Q180
R356
R336
R337
R357
Q540
Q542
Q544
MT
UDZ6.8B
UDZ6.2B
JW
2SC1623
DTC114EKA
100k
2SC1623
1k
0.1
3P
0.1
2SD2525
10k
10k
47k
2.2
50V
10
50V
22k
2.2k
1
50V
10k
2.2k
0.0022
4.7k
3.3k
0.1
10
50V
2.2
50V
47k
2.2k
1
50V
10k
2.2k
0.0022
4.7k
0.1
3.3k
10
50V
4.7k
100
100
0
100
22k
470
10V
0.01
0.01
D3SBA20-4101
3P
3P
17P
1200p
10
50V
100
16V
0.1
1SS355
2.2
50V
56k
GND PLATE
1.8k
470k
15k
68k
68k
1
50V
1
50V
470k
15k
1
50V
1
50V
15k
1
50V
1
50V
470k
DTC114EKA
100
16V
470
10V
0.1
0.1
47k
47k
1k
1k
10k
10k
4.7
50V
4.7
50V
2.2k
2.2k
10k
10k
8.2k
330p
330p
27mH
120p
120p
27mH
0.001
4.7k
4.7k
0.001
3.3k
0.0047
0.01
47
10k
0.01
0.0068
10
33
47k
4.7k
22k
10
50V
680p
8P
680p
2.2k
2.2k
2.2k
2.2k
2.2k
2.2k
10k
10k
10k
4700
25V
10EDB40
10EDB40
10EDB40
13P
8P
10k
10k
1M
10
50V
6P
10k
4.7k
10k
4.7k
6.8k
0.022
47
35V
0.022
47
35V
47
35V
0.012
0.012
100
16V
1000
25V
RT8H015C-T112-1
68k
HA12237F
DTC114EKA
MUTE DRIVE
DTC114EKA
MUTE DRIVE
1200p
2SC3661
SWITCH
2SC3661
SWITCH
2SC3661
SWITCH
2SC3661
SWITCH
2SC3661
SWITCH
2SC3661
SWITCH
2SA1235TP
SWITCH DRIVE
DTC114EKA
SWITCH DRIVE
DTC114EKA
BUFFER
DTA114EKA
SWITCH DRIVE
DTC114EKA
SWITCH DRIVE
RT1P137P-TP-1
SWITCH
DTC114EKA
SWITCH
2SD596
BIAS OSC
10
16V
DTC114EKA
BUFFER
BA09T
TA7809LS
1SS355
FA1L3Z
OVER VOLTAGE
DETECT
2SC3661
MUTE
2SC3661
MUTE
6.8k
6.8k
10k
10k
DTA124EKA
CD MUTE DRIVE
DTA124EKA
TC MUTE DRIVE
DTA124EKA
LINE MUTE
DRIVE
BUS1
BUS2
BUS3
BUS5
B
US
6
EVER +4V
M
G
ND
A+9V
CD M
U
TE
TC M
UTE
M+9V
SP
EAN
A
OVER VOLTAGE
O
V
ER
LOAD
DETECT
D
C D
ETECT
TC L
TC
R
R
EC L
REC R
DB
FB
FB
U
NR
EG
M
+7V
LINE M
U
TE
G
ND
R
IN
L IN
67/A7
65/A5
59
58
57
56
52
78
76
75
77
70
36
72
71
29
30
4
73
74
72
97
AC
CU
T D
ET
66/A6
65/A5
37
PROTECTOR CCT
TAPE A
HEAD
HEAD
TAPE B
E2,E3,E51
DECK A/B SELECT
PB/REC EQUALIZER AMP
+9V
REGULATOR
+9V
REGULATOR