Casio CTK-220L, Руководство по обслуживанию

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PRINTED CIRCUIT BOARDS
Sub PCB KDM445-MA2M
Top view
Main PCB JCM446-MA1M
Bottom view Top view
GR
0
R
5
5
E
R309
R324
VC
JA3
5
5
D329
R354
Q305
C363
R353 R352
R342
5
5
125
5
5
75
125
125
225
C348
C342
C374
R326
R325
C341
C344
C350
IC301
C347
C345
C346
C349
R365
R339
C361
225
200
100
5
R310
R348
R343
C339
B
5
E
5
5
5
AVDD
DVDD
LVDD
VCC
R320
R318
R302
JA5
JA4 125
D331
J301
J302
C368
D333
5
GR
PS
D332
0
100
100
75
75
75
D320 D319 D318 D317 D316 D315 D310 D308 D306 D307 D305 D309 D323 D322 D321
12
JJ
1
1
0
J
H
1
D301 D330
D325 D326 D324
175
250
R373
R370
R368
R369
C332
D302
C371
R338
C306
C307
R311
100
JA2
JA1
125
Q301
Q302
C336
Q303
D334 C330
R321
R323
R322
D336
D308
C334
C331
C335
R388
Q304
R317 R316
D304 R303 R301
C301
C328
L301
L302
445B UJW5
L305
R335 R333 R331
C352
L303
L304
LED301
D335 C333
R319
EB
150
150
75
B
B
E
100
5
5 5
5 5
BE
5
75
D328 D327
D314 D312 D311 D313
R327
C337
5
C373
Q310
C355
C372
B E
R374
R371
R372
C359
R366
C356
R
Q312
B E
C364