Sony CX-JN331 / CX-JPK331 / JAX-N331 Service Manual ▷ View online
CX-JN331/JPK331
25
25
CX-JN331/JPK331
7-2. BLOCK DIAGRAM – MAIN Section –
OVER LOAD
DETECT
Q441, 442
PROTECT
DETECT
Q485, 487
AMS DETECT
Q327
THERMAL
DETECT
Q483, 484
FEED BACK
SWITCH
Q106
TH441
R-CH
R-CH
R-CH
+
R-CH
R-CH
7
INPUT SELECT,
TONE CONTROL,
ELECTRICAL VOLUME
IC101
LOADING/TABLE
MOTOR DRIVE
IC371
Q1
6
Q0
37
TONE OUT1
15
REC OUT1
33
VOL OUT1
3
DATA
4
CLOCK
5
LCH
19
SI
10 Q4
12
Q6
14 Q8
CD-MUTING
MP3-STB
17 Q11
FRONT SP RELAY
11 Q5
TU-MUTING
13 Q7
LM-R
LM-F
16 Q10
TM-F
15 Q9
1 CD L
61 TUNER L
3 TAPE L
9 TAPE A1
7 PB OUT1
11 TAPE B1
63 MD L
36 VIN1
TM-R
REC/PB
SWITCH
IC201,
Q322, 323
R-CH
CD
A
58 MIC
MIC
D
CD-MUTING, MP3-STB,
LM-L, LM-R, TM-L, TM-R
LM-L, LM-R, TM-L, TM-R
B
MIC DET
E
• SIGNAL PATH
: CD PLAY
: TAPE PLAY (DECK-A)
: REC
• R-ch is omitted due to same as L-ch.
: TAPE PLAY (DECK-B)
: TUNER
MOTOR/PLUNGER DRIVER
IC602
18 SO
11 MP3-STB
C
JK101
R
VIDEO/MD
IN
L
: AUX IN
D481
D201
J801
PHONES
SPEAKER
IMPEDANCE
USE 6 – 16
Ω
+
–
–
–
+
R
L
JK441
FM/AM TUNER PACK
AM
FM ANT
AM ANT
TUNER-L
TUNER-R
LC72121 CE
CE
R-CH
ANT GND
ANT GND
TUNED
TUNED
STEREO
STEREO
TU MUTE
TU-MUTING
LC72121 DI
DO
LC72121 DO
DI
LC72121 CLK
CLK
CE
TUNED
STEREO
DO
DI
CLK
FM 75
Ω
COAXIAL
BIAS OSC
L101
REC BIAS
SWITCH
Q324
B +9V
BIAS OSC
Q321
ERASE
HRPE1
(REC/PB/ERASE)
(DECK-B)
HP1
(PB)
(DECK-A)
L-CH
R-CH
R-CH
L-CH
R-CH
R-CH
40
AMS OUT
BAND-PASS
FILTER
Q351, 352
56
SAOUT1
18
SC
+
RY441
–1
–2
PROTECTOR
Q486, 488
POWER ON
MUTING
Q105
STANDBY
SWITCH
Q489
MUTING
Q103
MUTING
CONTROL
Q101, 102
POWER AMP
ON/OFF
Q308
DC
DETECT
Q481, 482
+
+
POWER
AMP
IC441
LINE AMP
IC102
B+9V
B+9V
POWER ON
MUTING
Q309, 313
83
I-LC72121 DI
86
O-LC72121/BU2099FV CLK
84
O-LC72121 CE
67
I-TUNED-IN
68
I-STEREO-IN
87
O-BU2099FV LCH
85
O-LC72121/BU2099FV DO
69
I-AMS-IN
24
I-STREAM/VACS
19
WFR/HP/MIC-IN
18
I-PROTECT
91
O-BD3401 DATA
88
O-BD3401 CLK
75
O-SYSTEM-MUTE
8
CAPSTAN/REEL
MOTOR DRIVE
Q601
6
PLUNGER DRIVE
(DECK-A)
Q603
M
M
(CAPSTAN/REEL)
(DECK-A)
(DECK-B)
MOTOR
SOL-A
7
PLUNGER DRIVE
(DECK-B)
Q602
SOL-B
A-HALF
B-SOL
A-SOL
CAPM+
A-MODE
REC (REW)
A-PHOTO
B-PHOTO
I-REEL A IN
I-REEL B IN
22
70
71
I-TAPE A STAT
3
DATA
4
CLOCK
5
LCH
B-HALF
B-MODE
REC (FWD)
23
I-TAPE B STAT
SYSTEM CONTROLLER
IC601 (2/3)
TAPE MECHANISM
DECK BLOCK
: MIC
(JPK331: Chilean and Peruvian)
(JPK331: Chilean and Peruvian)
(Page 26)
(Page 24)
(Page 24)
(Page 26)
(Page 26)
CX-JN331/JPK331
26
26
CX-JN331/JPK331
7-3. BLOCK DIAGRAM – PANEL/POWER SUPPLY Section –
–27V
REGULATOR
Q902
W001
(AC IN)
SUB POWER
TRANSFORMER
PT902
MAIN POWER
TRANSFORMER
PT901
RY901
VF1, 2
VDD2
VDD1,
VDD3/4
TO
FLUORESCENT
INDICATOR TUBE
–VFL
VP
RECT
D401
D401
RECT
D301 – 304
AMP B+
AMP B–
D324 – 326
D321
D609
D610
D607, 608
D316
D908
RECT
RECT
D314, 315
VOLTAGE
SELECTOR
S901
+3.3V
REGULATOR
IC301
B+3.5V
+3.3V
REGULATOR
IC302
VOLTAGE
DETECT
IC604
+3.3V
REGULATOR
IC603
CD +3V
+1.5V
REGULATOR
IC303
CD +1.5V
RECT
D309 – 312
RECT
D902 – 904
RY B+
+9V
REGULATOR
IC304
CD M+7V
RECT
D305 – 308
UNREG +16V
+9V
REGULATOR
IC303
B+9V
EVER +10V
M +9V
B+3.5V
B+ SWITCH
Q312
B+ SWITCH
Q604, 616
RESET SWITCH
Q605
B+ SWITCH
Q314, 315
RELAY DRIVE
Q361, 362
29
I-AC CUT
74
O-POWER RELAY
11
RESET
SYSTEM CONTROLLER
IC601 (3/3)
O-POWER LED 76
FRONT SP RELAY
C
FLUORESCENT
INDICATOR TUBE
FL601
S1 – 21
G1 – G13
42 – 30
43 – 45, 47 – 50,
52 – 65
LED601
I/1
O-I-BASS LED 77
I-SIRCS-IN 28
LED602
i-BASS
LED DRIVE
Q609
REMOTE CONTROL
RECEIVER
IC610
S601 – 610,
S621 – 630,
S621 – 630,
S641 – 650
(FRONT PANEL KEYS)
10 I-VOLUME-IN2
9 I-VOLUME-IN1
ROTARY
ENCODER
S660
VOLUME
82 I-MULTI-JOG IN2
I-KEY1 –
I-KEY3
I-KEY3
81 I-MULTI-JOG IN1
ROTARY
ENCODER
S661
AMS/
TUNING
27 – 25
X601
32.768kHz
13
12
O-XT2
I-XT1
16
15
X602
10MHz
CF2
CF1
(JPK331: Mexican)
(JN331/JPK331: Chilean and Peruvian)
(JPK331: Mexican)
• SIGNAL PATH
: MIC
D
MIC
E
MIC DET
M +9V
MIC AMP
IC801 (
2/2)
MIC AGC
Q801
MIC DETECT
Q372
MUTING
Q802
MIC AMP
IC801 (1/2)
VR801
MIC LEVEL
J802
MIC
(JPK331: Chilean and Peruvian)
(Page 25)
(Page 25)
(Page 25)
CX-JN331/JPK331
27
27
CX-JN331/JPK331
•
Note for Printed Wiring Boards and Schematic Diagrams
•
Circuit Boards Location
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
•
All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
• 2
: nonflammable resistor.
• 5
: fusible resistor.
• C
: panel designation.
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• A
: B+ Line.
• B
: B– Line.
•
Voltages and waveforms are dc with respect to ground
under no-signal conditions.
under no-signal conditions.
−
BD Section
−
no mark : CD PLAY
−
Other Sections
−
no mark : FM
(
(
) : TAPE PLAY
〈〈
〉〉
: TAPE REC
[
] : CD PLAY
∗
: Impossible to measure
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
•
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Circled numbers refer to waveforms.
•
Signal path.
F
: TUNER (FM/AM)
E
: TAPE PLAY (DECK A)
d
: TAPE PLAY (DECK B)
G
: REC
J
: CD PLAY
L
: AUX IN
N
: MIC
•
Abbreviation
E51
E51
: Chilean and Peruvian models
MX
: Mexican model
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
SENSOR board
PANEL board
CDMP3 CONNECT board
MAIN board
POWER board
SUB TRANS board
TRANS board
HEADPHONE board
MIC JACK board
(JPK331: E51)
(JPK331: E51)
CD board
MOTOR (TB) board
MOTOR (LD) board
SW board
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
Indication of transistor
• Abbreviation
E51 : Chilean and Peruvian models
CX-JN331/JPK331
28
28
CX-JN331/JPK331
M101
(SPINDLE)
S101
R419
R
412
R411
R
410
R409
R408
R407
R
406
R404
R403
R402
R401
R305
R303
R301
R252
R
251
R
182
R
181
R163
R151
R
143
R142
R
141
R133
R132
R
131
R114
R113
R112
R111
R
307
C313
C311
C310
C309
C307
C306
C252
C
251
C194
C181
C320
C163
C162
C143
C142
C141
C
133
C
132
C131
C124
C111
C122
C115
C114
C113
C112
C185
C
186
R306
CN101
CN202
CN201
C317
R203
R161
C161
C211
C212
R204
C
213
IC101
IC301
C10
C260
C14
C15
C16
C13
C18
C11
R405
C316
R354
R353
R352
R351
R302
R253
C315
R191
R172
R
171
R162
R313
R121
R
12
R
11
R10
Q10
C116
C312
C184
C183
C303
C302
C305
C259
C258
C257
C255
C203
C196
C195
C201
C182
C
171
C172
C12
C308
C151
C134
C125
C314
C123
R165
R13
C17
FB301
C318
R201
C174
R205
C209
C210
X171
R173
E
IC501
R501
C501
IC303
IC251
1-860-502-
13
(13)
(CONDUCTOR SIDE)
CD BOARD
M
M102
(SLED)
M
1
3
5
4
1
16
48
33
49
64
32
17
OPTICAL
PICK-UP BLOCK
(KSM-215DCP)
(LIMIT)
(COMPONENT SIDE)
CD BOARD
1-860-502-
13
(13)
TP (RFACO)
TP (FE)
TP (VC)
A
B
C
D
E
1
2
3
4
5
6
7
8
9
CDMP3
CONNECT
BOARD
CN871
A
7-4. PRINTED WIRING BOARD – CD Board –
•
See page 27 for Circuit Boards Location.
: Uses unleaded solder.
(Page 32)
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