22
22
CDC-X237/X437
• Refer to page 19 for Waveforms.
3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 28 for IC Block Diagrams.
Note:
• Voltage is dc with respect to
ground under no-signal conditions.
no mark : CD PLAY
∗
: Impossible to measure
(Page 24)
IC B/D
IC B/D
RF AMP,ANALOG SERVO,
ANALOG SIGNAL PROCESSOR
REG DRIVE
R238
R297
R219
R217
R220
R229
R230
R234
R271
R236
R252
R261
R262
R295
R296
R291
R215
R216
R218
R214
R274
TC201
C203
C204
C207
C206
C217
C221
C218
C216
C219
C215
C214
C209
C237
C238
C230
C232
C235
C234
C229
C250
C253
C254
C261
C225
C282
C262
C270
C269
C268
C267
C265
C263
C266
R204
R205
R203
R206
C201
R201
C202
R246
R209
R210
R245
R244
R202
R211
R212
R282
R281
R213
R221
C208
C210
C212
R224
C213
R223
R273
R231
R228
R233
R232
C220
R235
R237
R278
C222
R239
C223
R240
C224
C240
C236
C228
C231
C227
R265
C226
C251
C252
R257
R256
R258
C258
R253
R251
C259
R248
R250
R247
R268
IC202
R272
R284
R270
R277
R286
R276
R285
C280
R264
R263
C264
R259
R267
R266
CON201
R260
R275
M2
M1
S3
S1
S2
Q207
Q208
X201
Q201
Q206
C233
IC201
IC203
C281
R254
R269
C256
R255
Q205
Q204
Q203
Q202
C205
R222
C211
R225
R227
R226
R242
R241
R243
R288
LD DRIVE
CD-DA/CD-DA SWITCHING
SERVO CONTROL,
DIGITAL SIGNAL PROCESSOR