Sony CDC-R30MP, Руководство по обслуживанию

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26 26
CDC-R30MP/X30MP
4-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Refer to page 25 for Circuit Boards Location.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise
specified.
• % : indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages are taken with a VOM (Input impedance 10 M Ω ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F : FM
f : AM/MW/LW
J
: CD
for printed wiring boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
x
: parts mounted on the conductor side.
•
a : Through hole.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
parts face are indicated.
Note: The components identified by mark
0
or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
1
A
B
C
D
E
F
G
H
I
J
2 3 4 5 6 7 8 9 10 11 12 13 14
C383
C385
C387
C384 C386
C388
D201
C382
C381
L241
L203
L201
R256
R257
R258
R259
R260
R261
R262 R263
R270
R271
R272
R273
R274
R275
R207
R208
R209
R228
R229
R230
R231
R291
R292
R293
R294
R240
R241
C222
C223
R237 R238
C228
C232
C235
C241
C251
C252
C243
C245
C246
C257
TC608
TC607
R411
R412
R413
R416
R302
R320
R322
R324
R326
R327
R328
R329
R330
R332 R333
R335
R337
C334
C333
C332
C331
R212
R214
R215
R216
C237 C238
C239
C256
R331
R334
TC604
TC605
TC606
FMB3
FMB4
C220
TC611 TC612 TC613 TC614
C260
C255
C259
L214
C362