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HCD-GNX780/GNX880
37
37
HCD-GNX780/GNX880
7-11. SCHEMATIC DIAGRAM – MAIN BOARD (1/3) –
• See page 54 for Waveforms.
R594
330
2W
R294
R296
R293
R272
C340
R340
R344
R343
R342
R347
R348
C341
R341
R345
R349
CN509
CN510
R385
R387
C375
R382
R381
R384
R399
R383
R390
R396
L371
R376
R373
R372
R375
C378
L370
C380
C384
R392
C386
R397
R393
C383
C385
R391
C372
C373
R374
R371
R370
C371
C370
R379
R386
R377
R378
C377
T301
C379
R394
R395
L372
100uH
R306
R307
R308
R310
R312
R309
R311
L302
100uH
C312
C308
C307
R319
C314
R302
R301
C303
C304
R304
R305
C306
C305
C301
C310
C351
R351
C353
R352
C354
C355
R354
C356
R355
C311
R339
R337
R548
R542
R541
C541
R540
C540
C545
R546
R547
C544
CN501
C553
C551
C550
C552
C563
C564
C566
C565
C562
D561
D562
R575
R577
CN580
C580
C581
Q585
R560
R562
C567
C568
CN502
R186
R187
C181
C180
R184
R185
R182
R183
R180
R181
CN507
CN503
D341
D342
D340
D550
R495
R108
CN513
D581
D583
Q580
Q582
JW561
JW568
JW566
R336
C309
C359
R380
C374
Q376
Q375
Q371
Q372
Q373
Q374
Q377
Q379
Q381
Q382
Q383
Q378
Q380
Q370
Q541
Q540
IC560
IC561
Q341
Q344
Q342
Q345
Q340
Q343
R346
Q181
Q180
IC562
R563
Q560
Q561
R388
C382
C381
R273
JW567
IC301
C376
R389
R357
C361
C364
R353
R369
R303
CN102
IC550
Q584
R356
R297
R295
Q544
Q545
EPT560
VCC
GND
R578
Q581
D584
4.7k
4.7k
47k
22k
0.0047
2.2k
680
2.2k
2.2k
2.2k
680
0.0047
3.3k
3.3k
3.3k
11P
3P
2.2k
2.2k
680p
2.2k
2.2k
2.2k
10k
2.2k
10k
10k
27mH
4.7k
4.7k
10k
10k
120p
27mH
120p
330p
10k
0.022
2.2k
2.2k
330p
0.022
10k
0.001
0.001
4.7k
4.7k
3.3k
0.0047
0.01
100V
10
33
47
10k
0.01
0.0068
4.7k
47k
22k
1M
100
100
100
4.7k
0
10
50V
470
10V
10
50V
2.2k
0.0022
4.7k
3.3k
0.1
10
50V
2.2k
47k
2.2
50V
1
50V
0.012
10
50V
0.012
3.3k
0.1
4.7k
10
16V
1
50V
2.2k
2.2
50V
47k
10
50V
22k
10k
470k
470k
15k
1
50V
68k
1
50V
1
50V
68k
15k
1
50V
13P
1000
25V
0.1
100
16V
2.2
50V
470
10V
0.1
4700
25V
0.1
100
16V
10EDB40
10EDB40
1k
10k
3P
CN560
2P
0.1
0.1
2SD2525
2.7k
2.2k
0.1
1000
6.3V
8P
10k
10k
4.7
50V
4.7
50V
1k
1k
47k
47k
10k
10k
8P
3P
1SS355WTE-17
1SS355WTE-17
1SS355WTE-17
1SS355WTE-17
100
1
9P
UDZSTE-176.2B
UDZSTE-176.8B
2SC2712-YG
2SC2712-YG
6.8k
0.5%
47
35V
47
35V
6.8k
0.5%
47
35V
2SD2704K
SWITCH
2SD2704K
SWITCH
2SD2704K
SWITCH
2SD2704K
SWITCH
2SD2704K
SWITCH
2SD2704K
SWITCH
2SA1235
SWITCH DRIVE
DTC114EKA
SWITCH DRIVE
DTC114EKA
BUFFER
DTA114EKA
SWITCH DRIVE
DTC114EKA
SWITCH DRIVE
RT1P137P-TP-1
SWITCH
DTC114EKA
SWITCH
2SD596DV345
BIAS OSC
DTC114EKA
CD MUTE DRIVE
DTA124EKA
CD MUTE DRIVE
BA09T
BA09T
2SB1132
CAP MOTOR
DRIVE
DTC114EKA
CAP MOTOR
DRIVE
2SB1132
B TRIG DRIVE
DTC114EKA
B TRIG DRIVE
2SB1132
A TRIG DRIVE
DTC114EKA
A TRIG DRIVE
680
2SD2114K
MUTE
2SD2114K
MUTE
TA78033LS
2.2k
RT1P137P
B+ SWITCH
DTC114EKA
B+ SWITCH
6.8k
0.5%
1200p
1200p
10k
HA12237F
680p
22k
10k
10
50V
0.0022
10k
2.2k
10k
4P
RT8H015C-T112-1
DTC114EKA
BUFFER
6.8k
0.5%
3.3k
3.3k
DTA124EKA
LINE MUTE DRIVE
DTC114EKA
LINE MUTE DRIVE
1k
2SC2712-YG
HI SPEED
SWITCH
HZU2.0BTRF
A-TRG
B-TRG
BUS8
BUS7
BUS6
LED+9V
EVER+3.3V
B+
D GND
CD POW
ER
G
ND
SW
O
UT
M
+7V
A+9V
D
BFB FB
CD M
UTE
3.3V
REC
-O
UT-R
REC
-O
UT-L
TC
-PB-R
TC-PB-L
R-OUT
L-O
UT
D
GND
GN
D
U
N
REG
58
59
37
75
78
53
54
55
90
89
48
94
66
67
65
97
57
76
77
70
68
78
56
95
83
60
72
SYSTEM
CONTROL
(FOR CHECK)
DECK A/B SELECT,
PB/REC EQUALIZER AMP
+9V REGULATOR
+9V REGULATOR
REGULATOR
+3.3V
OVER CURRENT
PROTECTOR
M891
DC FAN
(2/3)
BOARD
MAIN
(Page 38)
(3/3)
BOARD
MAIN
(Page 39)
BOARD
BOARD
PA
SURROUND
(Page 47)
(Page 45)
CN600
CN700
BOARD
PA
(Page 45)
CN601
BOARD
CDG
(Page 51)
CN1003
N
GNX880
GNX880
Ver. 1.1