Service manual
HCD-NEZ30
2323
HCD-NEZ30
7-6. SCHEMATIC DIAGRAM – MAIN Section (1/2) –
D319
R236
C127
C227
C126
C226 R237
R137
CN314
R505
R506
R502
R501
C353
C352
R358
R376
C351
Q343
R389
R387
R388
R377 R379 R381 R383
R378 R380 R382 R384
C363
R390
D321
CN500
L101
L201
JW229
JW230
J321
R514
C364
Q342
D323
FB317
R129 R130
R229 R230
C502
C504
IC303
C335
C306
C309
C327C316C310
R304C366
C321
C322
C326
C315
C319
C318
C317
C325
C311
D303D304
FB304
C238
C138
CN317
FB306
FB305
R136
J302
C328
D307
C515
R371
R370R369
R386R385
R391 R392
R153
C122 C119
R253
C222 C219
R523
C507
C510
C509
R518
D324
D320
C503
R503
C506
R508R524
R509
C523
R504
C505
C501
R517R521
D325
C525
R536
C526
C530
C524
C529
R539
R537
R538
C528R513
C527R512
IC501
CN318
CN321
JW301
Q320
R340
C365
R339
C360
D301
Q319
C357
R338
R332
R333
R334
C359
R337
R336Q318
R335
R540
R535
D327
MC2840-T112-1
10k
470p
470p
220p
220p 4.7k
4.7k
4P
47k
1k
47k
1k
2200
35V
2200
35V
47k
100k
100
25V
2SC3052EF
10k
10k
10k
470 470 470 220
470 470 470 220
10 50V
100k
1SS355TE-17
13P
10k
10
50V
2SA1235TP-1EF
UDZ-TE-17-4.7B
0
4.7 4.7
4.7 4.7
470p
470p
BA09T
100
16V
0.01
1000
10V
100p100p100p
4.7k220p
100p
100p
100p
100p
100p
100p
22p
100p
100p
1N4002B1N4002B
0
22
50V
22
50V
23P
0
0
10k
100p
1SS355TE
470
10V
10k
10k10k
1001k
10
1/2W 0.1 0.1
10
1/2W
0.1 0.1
100
1000p
0.01
0.01
47k
UDZSTE-174.7B
MC2840-T112-1
47
25V
470
47
25V
470100
47k
10p
47k
100p
100p
47k10k
MC2840-T112-1
0.0022
100
1/2W
0.0022
100
35V
10p
100
35V
10k
1k
10k
0.00222.2k
0.00222.2k
STK453-030A
7P
17P
2SK2158-T2
T2B
470k
4.7 50V
470k
1
MC2840
2SC3052F
0.1
470k
10k
10k
220k
1
47k
47k
2SC3052F
10k
10k
100
1/2W
MC2840-T112-1
A1
A2
A4
A5
A7
A8
A9
A10
A11
A12
A13
A14
A6
A15
A16
CD-L
CD-R
SCOR
SENS
XLAT
MP3-ACK
MP3-O-REQ
MP3-XLAT
MP3-DATA
CLK
MP3-I-REQ
XRST
XTACN
MP3-SSTB
MP3-CLK
DATA
SCOR
SENS
XLAT
MP3-ACK
MP3-O-REQ
MP3-XLAT
MP3-DATA
CLK
MP3-I-REQ
XRST
XTACN
MP3-SSTB
MP3-CLK
DATA
DGND
PROTECT
HP-L
HP-L
HP-L
HP-R
HP-R
HP-R
HPGND
SP-L
SP-L
SP-L
SP-R
SP-R
SP-R
MGND
+UNREG
M+10V
GND(CT)
-B
GND
+B
(1/2)
(CHASSIS)
Q342,343
DC DETECT
L
R
AUDIO IN
D+3.3V
+9V REGULATOR
G
IO
DATA
MP3-CLK
MP3-SSTB
D-GND
XTACN
XRST
MP3-I-REQ
CLK
MP3-DATA
MP3-XLAT
MP3-O-REQ
MP3-ACK
XLAT
SENS
SCOR
LED-GND
DATA
MP3-CLK
MP3-SSTB
D-GND
XTACN
XRST
MP3-I-REQ
CLK
MP3-DATA
MP3-XLAT
MP3-O-REQ
MP3-ACK
XLAT
SENS
SCOR
D-OUT
L-OUT
A-GND
R-OUT
MGND
VM(7V)
AVDD(3.3V)
DVDD(3.3V)
LED+9V
SPEAKER
RI-
LI-
RI+
LI+
GND
SUB
STBY
+VC
RO-
-VC
RO+
LO+
+VP
LO-
-VP
POWER AMP
I-P.MONITOR
Q318-320
DC DETECT
S
(Page 30)
(Page 30)
(Page 24)
(Page 21)
(Page 27)
(Page 24)
(Page 24)
Refer to SUPPLEMENT-1 for the MAIN board of schematic diagram of except US and Canadian models.
When repairing the set of US and Canadian models, refer to either of original service manual/SUPPLEMENT-1 according to
the set.
Ver. 1.1