Sony CDX-848X Service Manual ▷ View online
CDX-848X
21
21
6-3.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from CD changer controller.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
no mark : 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.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD PLAY (ANALOG OUT)
c
: CD PLAY (DIGITAL OUT)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Circuit Boards Location
SWITCH board
DIGITAL OUT board
JACK board
LSW board
RF board
MAIN board
CDX-848X
22
22
• Semiconductor
Location
Ref. No.
Location
IC101
H-6
IC201
J-5
Q101
F-7
Q102
H-7
C201
C121
C105
SW1
CHUKING
END DETECT
SW2
SAVE END
DETECT
CN102
IC201
C102
Q101
TP101
TP102
TP108
TP107
TP104
TP103
TP105
TP106
IC101
C217
C203
C204
C205
C206
C207
C208
C202
C106
C209
C109
C104
C122
C107
C111
C101
R201
R202
R203
R204
R206
R205
R207
R208
R210
R209
R211
R212
R214
R213
R218
R219
R220
R222
R223
R104
R215
R216
R108
R109
R110
R117
R112
R113
R107
R105
R101
R103
R102
C103
R120
R121
R122
R106
C108
Q102
R119
CNJ101
SW3
(LIMIT)
BLU
YEL
YEL
RED
BLK
WHT
1-679-422-
11
(11)
M101
(SLED)
M
LSW BOARD
M103
(CHUKING)
M
OPTICAL
PICK-UP
BLOCK
(KSS-720A)
OP FLEXIBLE
BOARD
MAIN FLEXIBLE
BOARD
MAIN BOARD
TP
(TE)
TP
(VC)
A
M102
(SPINDLE)
M
BLK
RED
YEL
BLU
1-679-421-
11
(11)
TP
(RFAC)
1-679-421-
11
(11)
B
C
D
E
F
G
H
I
J
K
1
2
3
4
5
6
7
8
9
10
11
12
13
A
6-4.
PRINTED WIRING BOARDS – RF/LSW Boards –
•
See page 21 for Circuit Boards Location.
(Page 24)
CDX-848X
23
23
6-5.
SCHEMATIC DIAGRAM – RF/LSW Boards –
•
See page 30 for for Waveforms.
•
See page 30 for IC Block Diagrams.
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
(Page 26)
CDX-848X
24
24
6-6.
PRINTED WIRING BOARDS – MAIN Board (Component Side) –
•
See page 21 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
D302
D-3
D303
E-3
D306
F-6
D307
F-5
D310
G-4
D313
E-3
D314
D-3
IC101
C-9
IC102
D-7
IC201
F-9
IC203
H-10
IC301
H-4
IC302
D-3
IC303
G-3
IC306
A-9
IC401
D-6
IC402
D-5
IC501
B-7
Q202
G-11
Q301
F-6
Q303
F-4
Q304
G-4
Q402
E-4
Q410
D-4
Q420
E-4
D307
D306
D310
IC303
IC301
D303
D302
IC306
IC102
IC101
IC203
IC501
CN301
Q202
Q301
IC401
IC402
Q410
Q420
Q402
IC302
SW201
MAGAZINE
DETECT
IC201
D314
D313
C314
C301
C302
C303
C308
C312
C309
C318
C306
C304
C305
C411
C412
C406
C404
C405
C403
C162
C161
C113
C504
C506
C112
C502
C501
C110
C109
C111
C107
C108
C106
C105
C115
C123
C122
C121
C103
C101
C102
C114
C205
C206
C204
C201
C202
C307
R305
R311
R310
R306
R302
R303
R304
R204
R208
R206
R205
R201
R250
R203
R211
R209
R221
R222
R202
R207
C203
R101
R125
R123
R122
R108
R109
R103
R102
R104
R105
R106
R107
C104
R501
R401
R403
R405
R411
R409 R407
R410
R412
R408
R406 R404
R402
C408
R413
R414
R416
R415
R301
C317
R210
Q304
FB101
Q303
B
JACK BOARD
CNJ901
JACK FLEXIBLE BOARD
A
RF BOARD
CNJ101
MAIN FLEXIBLE BOARD
1-679-417-
11
(11)
Y
SUB BOARD
X
SUB BOARD
B
C
D
E
F
G
H
I
J
K
1
2
3
4
5
6
7
8
9
10
11
12
A
(Page 29)
(Page 22)
Ver 1.1 2001.05
(Page 25)
(Page 25)
Click on the first or last page to see other CDX-848X service manuals if exist.