Sony CMT-NEZ31 / HCD-NEZ31 Service Manual ▷ View online
HCD-NEZ31
21
21
HCD-NEZ31
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
CN500
L101
L201
JW229
JW230
J321
R514
C364
Q342
R129
R130
R229
R230
C332
C502
C504
IC303
C335
C306
C309
C327
C316
C310
R304
C366
C321
C322
C326
C315
C319
C318
C317
C325
C311
D303
D304
FB304
C238
C138
CN317
FB306
FB305
R136
J302
C328
C515
R371
R370
R369
R386
R385
R391
R392
R153
C122
C119
R253
C222
C219
R523
C507
C510
C509
R518
D320
C503
R503
C506
R508
R524
R509
R504
C505
C501
R517
R521
D325
C525
R536
C526
C530
C529
R539
R537
R538
C528
R513
C527
R512
IC501
CN318
CN321
JW301
Q320
R340
C365
R339
C360
D301
Q319
C357
R338
R332
R333
R334
C359
R337
R336
Q318
R335
R540
R535
D327
D307
D321
D324
D323
C512
C511
C523
C524
R516
C514
R515
C513
MC2840-T112-1
10k
470p
470p
FB317
0
220p
220p
4.7k
4.7k
4P
47k
1k
47k
1k
2200
35V
2200
35V
47k
100k
100
25V
25V
2SC3052EF
10k
10k
10k
470
470
470
220
470
470
470
220
10 50V
100k
13P
10k
10
50V
2SA1235TP-1EF
4.7
4.7
4.7
4.7
1000p
470p
470p
TA7809S
100
16V
16V
0.01
1000
10V
100p
100p
100p
4.7k
220p
100p
100p
100p
100p
100p
100p
22p
100p
100p
1N4002B
1N4002B
0
22
50V
22
50V
23P
0
0
10k
100p
470
10V
10V
10k
10k
10k
100
1k
10
1/2W
0.1
0.1
10
1/2W
0.1
0.1
100
1000p
0.01
0.01
47k
MC2840-T112-1
47
25V
470
47
25V
470
100
47k
47k
100p
100p
47k
10k
MC2840-T112-1
0.0022
100
1/2W
0.0022
100
35V
35V
100
35V
35V
10k
1k
10k
0.0022
2.2k
0.0022
2.2k
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
1SS355WTE-17
1SS355WTE-17
UDZW-TE17-4.7B
UDZW-TE17-4.7B
0.22
0.22
50V
10p
10p
2.2
2W
0.22
2.2
2W
0.22
50V
A1
A2
A4
A5
A7
A8
A9
A10
A11
A12
A13
A14
A6
A15
A16
A17
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
I
O
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 28)
(Page 28)
(Page 22)
(Page 19)
(Page 25)
(Page 22)
(Page 22)
HCD-NEZ31
22
22
HCD-NEZ31
7-7. SCHEMATIC DIAGRAM – MAIN Section (2/2) –
•
See page 23 for Waveforms.
•
See page 23 for IC Block Diagrams.
R
117
R131
R309
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
R
148
R
119
C217
C220
R
219
R
248
R249
R216
R116
R149
R217
R123
R121
R221
R114
R212
R209
R108
R239
R109
C139
C113
C214
R223
C211
R214
R238
R112
R211
C239
C140
C111
R111
C240
R204
C104
C204
R210
R206
R207
C103
R110
R105
C
207
C106
R106
C108
C208
R2
05
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
R102
C102
C202
R202
C201
R200
C314
C303
C362
C107
C302
T301
HRPE301
R312
C355
R222
R122
Q344
C313
R305
Q335
Q329
R306
Q334
Q328
Q326
R308
C312
R313
R315
Q332
R139
R314
Q327
R307
R
302
R303
C301
R
301
C331
C221
C121
JR115
JR215
C305
C367
R319
R317
R224
R245
C233
C133
CN319
CN320
C338
WIRE300
R316
C345
JW251
FB318
JR236
JR136
R226
R126
2.2k
1k
1k
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
2.2k
2.2k
4.7k
22k
4.7k
10k
22k
4.7k
470p
0.22
50V
0.47
50V
2.2k
100
0p
4.7k
2.2k
22k
22k
470p
220p
1000p
22k
220p
47
100
10V
10V
100
10V
10V
1k
4.7k
100k
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
47k
2200p
2200p
47k
0.001
10k
0.01
4700p
10
50V
2.2
50V
220
10V
10V
4.7
0.022
470k
470k
2SC2001TP-LK
100
16V
16V
2.2k
2SC3052EF
2SC3052EF
2.2k
2SC3052EF
2SC3052EF
2SC3052EF
1k
4.7
50V
50V
2.2k
10k
2SA1235
22k
10k
2SC3052EF
1k
100k
10k
10p
22k
0.22
1
1
0
0
220
10V
10V
470p
22k
10k
22k
0
0.047
0.047
9P
11P
0.01
10k
C330
2200p
0
0
A1
A2
A4
A5
A7
A8
A9
A10
A11
A12
A13
A6
A14
A15
A16
A17
STCLK
STCLK
STDOUT
STDOUT
STDIN
STDIN
STCE
STCE
TUNED
TUNED
CD-L
CD-R
0
0
22k
22k
B
A
S
S
-R
O
U
T
-
R
B
A
S
S
-L
O
U
T
-
L
A
U
X
-L
C
D
-
L
C
D
-
R
R
E
C
O
-
R
R
E
C
O
-L
N
F
-
L
N
F
-
R
A
U
X
-
R
AMPMUTE
TAMUTE
FDATA
REC/PB
BIAS
ST-L
ST-R
ST CE
ST CLK
(2/2)
V
E
E
C
O
N
T
V
D
D
T
R
E
-
R
T
R
E
-
L
G
N
D
V
O
L
I-R
V
O
L
I-
L
P
B
O
-
L
P
B
0
-
R
N
F
-R
TC-R
TC-L
N
F
-L
AM
ANTENNA
COAXIAL
INPUT SELECT,
ELECTRICAL VOLUME
1
2
3
4
5
6
BIAS OSC
BIAS OSC
REEC BIAS SWITCH
L-CH
R-CH
(REC/PB/ERASE)
ERASE
Q347,348
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)
FM 75
Ω
WIRE200
R527
R525
R519
R520
R526
R528
J500
EPT500
R533
R531
R529
R534
R532
R530
R541
R542
R544
R546
R548
R543
R545
R547
C520
C521
470
470
470
470
470
470
220
220
220
220
220
220
10k
10k
10k
10k
10k
10k
10k
10k
0.01
0.01
HP-L
HPGND
HP-R
SP-L
SP-R
HP-L
HP-L
HP-R
HP-R
SP-L
SP-L
SP-R
SP-R
FFC501
1
13
(CHASSIS)
(CHASSIS)
PHONES
JW011
JW258
SHIELD BOARD
JW012
JW013
JW014
1
1
(Page 25)
(Page 21)
(Page 21)
(Page 21)
HCD-NEZ31
23
23
HCD-NEZ31
•
Waveforms
– CD Board –
– MAIN Board –
– PANEL Board –
ws
IC801
od
(XO)
(CD play mode)
1 V/DIV, 100 ns/DIV
238 ns
3.6 Vp-p
wa
IC801
qf
(X1A)
1 V/DIV, 10
µ
s/DIV
30.6
µ
s
3.1Vp-p
3
IC201
u;
(RFACO)
(CD PLAY mode)
200 mV/DIV, 500 ns/DIV
0.5 to 1.3 Vp-p
22.8
µ
s
3.3 Vp-p
1
IC201
1
(LRCK)
(CD PLAY mode)
1 V/DIV, 10
µ
s/DIV
2
IC201
5
(BCK)
(CD PLAY mode)
1 V/DIV, 200 ns/DIV
472 ns
3.3 Vp-p
4
IC201
<z/,
(XTAO)
(CD PLAY mode)
1 V/DIV, 20 ns/DIV
59.4 ns
2.3 Vp-p
qa
T301
4
(REC mode)
50 V/DIV, 5
µ
s/DIV
12
µ
s
81.6 Vp-p
qs
Q344 (Collector)
(REC mode)
(REC mode)
5 V/DIV, 5
µ
s/DIV
12
µ
s
16.2 Vp-p
IC402
BA5947FM-E2
1
LEVEL SHIFT
MUTING
D
15
16
+ –
+
–
D
D
17
18
D
19
20
VREF
21
22
23
24
25
26
27
28
PREVCC
OPOUT
OUTVREF
CH4CAPA
CH4IN
CH3FIN
CH3RIN
GND
MUTE
POWVCC
CH3OUTF
CH3OUTR
CH4OUTF
CH4OUTR
OPIN–
2
OPIN+
INTERFACE
14
13
D
12
11
D
10
9
8
7
6
CH2FIN
CH2RIN
GND
5
4
CH1FIN
CH1RIN
VREFIN
POWVCC
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
INTERFACE
D
D
3
SW
INTERFACE
•
IC Block Diagrams
– CD Board –
IC302
BD3881FV
28
REC1O
27
REC1N
26
REC2N
25
REC2O
24
INC2
23
INC1
22
INB2
21
INB1
20
INA2
19
INA1
18
OUT1
17
BAS1
16
OUT2
15
BAS2
BASS
BASS
13
CONT
14
VEE
12
VDD
11
TRE2
10
TRE1
TREBLE
TREBLE
7
VOLIN1
8
VOLIN2
9
GND
VOLUME
VOLUME
6
PB1O
LOGIC
CONTROL
5
PB2O
4
PB2N
1
PB1N
2
PB1P
3
PB2P
– MAIN Board –
HCD-NEZ31
24
24
HCD-NEZ31
7-8. PRINTED WIRING BOARD – PANEL Board –
: Uses unleaded solder.
CN804
CN1805
JW
801
JW
802
JW
803
JW
804
JW
805
JW
806
JW
807
JW
808
JW
809
JW
810
JW
811
JW
812
JW
813
JW818
JW819
JW820
JW
822
JW823
JW824
JW825
JW826
JW827
JW828
JW829
JW830
JW831
JW832
JW833
JW834
JW835
JW836
JW837
JW838
JW
839
JW
844
JW
845
JW
847
JW
848
JW
850
JW
851
JW
852
JW
853
JW
854
JW855
JW856
JW
857
JW
858
JW
859
JW
860
JW
861
JW863
JW
867
JW
868
JW874
JW875
JW876
JW877
JW878
JW
87
9
JW880
JW881
JW882
JW883
JW884
JW885
JW886
JW
887
JW889
JW891
JW893
JW895
JW896
JW
897
JW890
JW892
JW894
JW814
JW816
JW815
JW817
JW
869
JW
870
JW871
JW872
JW873
JW
849
JW864
JW841
JW842
JW843
JW
821
JW
888
X801
C801
C807
C818
S803
D806
RV801
S808
S802
S813
S812
S811
S810
S809
S804
IC802
S801
C809
C802
C859
D805
C808
Q802
Q804
LCD801
S805
C811
D804
JW
840
JW865
JW
898
JR708
JR709
JR710 JR711
JR712
JR713
JR714
JR715
JR717
JR719
JR720
JR722
JR723
JR724
JR725 JR726
JR727
R712
C804
C803
R843
R
842
R844
R845
R814
R804
R808
R812
R807
R839
R840
R815
R836
R847
R846
R851
R850
R853
R852
Q805
Q803
R711
R805
R703
R704
R710
R701
R702
R875
R874
R873
R872
Q808
R832
R813
R829
R722
R822
R827
R828
R709
R707
C816
R854
R818
R819
R816
C812
R833
R721
R863
R817
R886
R831
R857
R858
C828
D807
R860
C823
R861
R820
R830
R715
R848
C833
R869
R803
R878
R885
R871
R884
R810
R811
R870
R826
R824
D801
R859
C827
IC803
R849
R883
R882
R881
R880 R879
R835
R825
C834
C821
C822
R856
R862
C819
IC801
C820
C826
D
809
R841
Q801
Q807
C817
R806
R868
C829
C815
R837
C805
R713
R725
R726
R724
R717
R719
R716
R718
R720
R723
R727
FFC801
1
100
30 31
50
51
80
81
PANEL BOARD
1-869-181-
E
E
E
E
1
2
4
E
LIQUID CRYSTAL DISPLAY
D804,805
(LCD BACK LIGHT)
1
3
3
1
STANDBY
DSGX
CD SYNC
PAUSE/
START
TUNER/
BAND
TUNING –
TUNING +
PLAY MODE/
TUNING MODE
VOLUME
ROTALY ENCODER
(NC)
3
1
2
X802
TAPE
CD
E
E
TAPE MECHANISM
DECK BLOCK
SUPPLIED WITH THE
ASSEMBLED BLOCK
1
9
5
FFC803
G
DC BOARD
CN900
1
1
17
11
FFC804
FFC805
2
1
F
MAIN BOARD
CN320
D
MAIN BOARD
CN321
S820
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
CD LID
OPEN/CLOSE
DETECT
S801 – 813
A
K
K
1
6
R708
R876
S807
S806
R877
+
–
14
(14)
C806
C832
Ref. No. Location
D801
G-7
D804
C-4
D805
C-4
D806
F-8
D807
C-9
D809
D-9
IC801
D-7
IC802
E-9
IC803
D-9
Q801
C-8
Q802
G-5
Q803
H-5
Q804
G-5
Q805
G-5
Q807
B-8
Q808
C-4
•
Semiconductor
Location
Location
(Page 20)
(Page 20)
(Page
26)
•
See page 17 for Circuit Boards Location.
Click on the first or last page to see other CMT-NEZ31 / HCD-NEZ31 service manuals if exist.