Service manual
HCD-NEZ30
2424
HCD-NEZ30
7-7. SCHEMATIC DIAGRAM – MAIN Section (2/2) – • See page 25 for Waveforms. • See page 25 for IC Block Diagrams.
R117
R131
R309
R527
R525
R519
R520
R526
R528
R134
R107
C358
R135 R235
C235
C135
R228
R233
C218
R234
R231
R132
R133
R128
R243
R143 R145
R124
R125
R225
C213
R120
R220
C116 C216
C114
R147
R118
R218
R247
C120 C117
R148
R119
C217 C220
R219
R248
R249
R216
R116
R149
R217
R123
R121R221
R114
R212
R209
R108
R239
R109
C139
C113
C214
R223
C211
R214
R238
R112
R211
C239 C140
C111
R111
C240
R204
C104C204
R210R206R207
C103
R110
R105
C207
C106
R106
C108
C208
R205
C203
R104
C206
IC302
R103
R203
R208
C304
R310
R201
R100
R101
C101
R368
R367
R366
Q348
C354
R311
R362
C356
Q347
CN301
R138
R232
C118
R102C102
C202 R202
C201
R200
C314C303
C362
C107C302
T301
HRPE301
J500
EPT500
R312
C355
R222 R122
Q344
C313
R305
Q335 Q329
R306
Q334 Q328
Q326
R308 C312R313
R315
Q332
R139
R314
Q327
R307
R302
R303
C301
R301
C331
C221
C121
JR115
JR215
C305
C367
R319R317
R224 R245
C233
C133
CN319
CN320
C338
WIRE300
R533
R531
R529
R534
R532
R530
R541
R542
R544
R546
R548
R543
R545
R547
R316
C361
C520C521
C348 C349
JR301
C330
R226
R126
C345 JR137 C347
C337
JR236 JR136
2.2k
1k
1k
470
470
470
470
470
470
0
100k
0.01
100k 100k
10
50V
10
50V
1k
0
47000p
0
1k
1k
0
1k
10k
10k 0
22k
22k
22k
0.22
50V
10k
10k
470p 470p
0.47
50V
22k
10k
10k
22k
220p 1000p
2.2k
10k
1000p 220p
10k
2.2k
10k
47k
47k
10k
2.2k
2.2k
2.2k2.2k
4.7k
22k
4.7k
10k
22k
4.7k
470p
0.22
50V
0.47
50V
2.2k
1000p
4.7k
2.2k
22k
22k
470p 220p
1000p
22k
220p
47
100
10V
100
10V
1k4.7k100k
100p
1k
220k
2.2
50V
0.022
4.7k
4700p
4700p
220k
100p
47
0.022
BD3881FV
470
470
10k
0.0047
4.7k
47k
10k
47k
0.001
10k
2.2k
22k
RT1N141C-TP-1
47
16V
4.7
22k
0.001
KTA1266-GR-AT
7P
2.2k
1k
47000p
47k2200p
2200p 47k
0.001
10k
0.014700p
10
50V
2.2 50V220
10V
4.7
0.022
470k 470k
2SC2001TP-LK
100
16V
2.2k
2SC3052EF 2SC3052EF
2.2k
2SC3052EF 2SC3052EF
2SC3052EF
1k 4.7
50V
2.2k
10k
2SA1235
22k
10k
2SC3052EF
1k
100k
10k
10p
22k
0.22
1
1
0
0
220
10V
470p
22k10k
22k 0
0.047
0.047
9P
11P
0.01
220
220
220
220
220
220
10k
10k
10k
10k
10k
10k
10k
10k
10k
47
16V
0.010.01
4700p 4700p
0
2200p
0
0
0.01 0 1000p
470 10V
22K 22K
A1
A2
A4
A5
A7
A8
A9
A10
A11
A12
A13
A6
A14
A15
A16
STCLK
STCLK
STDOUT
STDOUT
STDIN
STDIN
STCE
STCE
TUNED
TUNED
CD-L
CD-R
BASS
-R
O
UT-
R
BAS
S-L
O
UT-L
AUX-L
CD
-L
CD-R
RE
CO-
R
REC
O-L
NF-
L
N
F-R
AU
X-
R
HP-L
HPGND
HP-R
SP-L
SP-R
AMPMUTE
TAMUTE
FDATA
REC/PB
BIAS
ST-L
ST-R
ST CE
ST CLK
HP-L
HP-L
HP-R
HP-R
SP-L
SP-L
SP-R
SP-R
(2/2)
VE
E
CO
NT
VDD
TRE
-R
T
RE
-L
G
ND
VOL
I-R
VOLI-
L
PB
O-
L
PB
0-R
NF-R
TC-R
TC-L
NF-L
AM
ANTENNA
COAXIAL
INPUT SELECT,
ELECTRICAL VOLUME
1
2
34
5
6
BIAS OSC
BIAS OSC
REEC BIAS SWITCH
L-CH
R-CH
(REC/PB/ERASE)
ERASE
FFC501
1
13
(CHASSIS)
Q349
B+ SWITCH
Q347,348
PHONES
REC/PB SWITCH
Q326-329,332,334,335
TUNER
(FM/AM)
STK-ON
DO UCOM->ST
DI ST->UCOM
SD(TUNED)
A-GND
DI
CLK
DO
CE
ST(TUNED)
L-OUT
VCC
R-OUT
(CHASSIS)
(EXCEPT US,CND)
FM 75Ω
(1/2)
(1/2)
(Page 27)
(Page 23)
(Page 23)
(Page 23)
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. 1.5
Refer to SUPPLEMENT-2 for the HEAD PHONE board of schematic diagram of UK and East European models.
When repairing the set of except UK and East European models, refer to either of original service manual/
SUPPLEMENT-2 according to the set.