Printed Wiring Boards - Main Section (1/2) - Sony MZ-B50 Service Manual

MZ-B50
6-5. PRINTED WIRING BOARDS – MAIN Section (1/2) –
Semiconductor Location
z
A
Ref. No. Location Ref. No. Location
D301 C-10 Q104 I-9
D302 B-10 Q105 I-9
D303 H-8
D501 F-5 Q106 C-6
D602 D-3 Q201 B-9
Q202 B-9
D603 D-9 Q204 H-9
B
D901 D-7 Q205 H-9
D905 C-7
D906 C-7 Q206 C-6
Q301 B-9
Q303 B-10
IC301 H-8 Q304 G-10
IC302 C-5 Q305 B-8
IC303 B-8
IC304 B-4 Q306 C-8
C
IC305 G-9 Q307 C-9
Q308 C-9
IC307 F-9 Q309 C-10
IC308 H-9 Q312 H-10
IC309 H-10
IC310 G-9 Q313 G-8
IC311 F-10 Q314 G-8
Q315 G-10
IC501 F-5 Q316 H-10 D
IC502 F-6 Q321 C-8
IC504 G-7
IC505 F-7 Q322 H-10
IC601 E-8 Q325 C-9
Q331 F-8
IC602 D-8 Q332 F-8
IC603 D-4 Q333 G-8
IC604 D-8
E
IC605 D-8 Q334 I-8
IC801 H-6 Q338 B-4
Q501 D-5
IC802 H-7 Q603 C-5
IC803 H-7 Q604 C-5
IC804 H-6
IC901 D-6 Q605 D-8
IC904 B-2 Q607 D-9
Q809 I-7 F
IC905 D-3 Q901 B-3
IC906 F-4 Q904 B-7
Q905 B-3
Q101 B-9 Q906 B-3
Q102 B-9 Q907 F-4
Q103 B-4
G
H
I
02
1 2 3
(PLUG IN POWR)
MAIN BOARD (SIDE A)
C908 5
C907 1 Q906
R940
G
S
R944 C933 D
3
4
4
C924
Q905
E B
C G
5
D
C905
S
Q901
C323
R908
A
BATT BOARD
C602
D602
R945
4
5
1 3
C936
OPTICAL PICK-UP
BLOCK
LCX-2R
C961
IC906
MIC1 SWITCH & LCD MIC2
MIC MODULE UNIT MIC
SP1
B
SPEAKER
SLED CONTROL
BOARD
– 35 –
Refer to page 49 for Notes.
z
4 5 6
J303
MIC
R318
IC304
3
R218
R212
R201
R309 R118
1 C211
R101
C322
C111
C240 R112
C140
R247
R248 Q206
IC302
R147
R148
E B
B
C216
4
C 5
C
C116
E
C928
1
8
Q106
C927
C213
B
R930
C
Q604
E C923
R606
R935 36
R612
R611
R927 37
C603
R928
C614
40
C922
IC603
R938
C605 45
R909
48
C921
R931
1
C925
R522
C530
Q501
X501
R506
CN501
C512
IC501
*
IC502
C960
R947
Q907
R526 R524
R946
C1001
R525
C537 C534
CN801
X801
GRN
R807 R850
R803
BP801
R804
SHORT: TEST MODE
YEL OPEN: NORMAL MODE
*
IC801
R838
L801
C806
GND
8
7
Q305
C315
L302 D
C324
G S
R317 R208
R301 C319 R108
C101
1
8
Q904
IC303
S
D
G 4 5
C915
D906
D905
R128
R228
R929
Q321
35 30 25
C910
Q306
R913
24
16
20
C932 1
IC901
15
C919
15 IC604
5
IC602
13
R905
10
8 9
Q605
5 10 12
R618
C913
R939
R620
D603
IC605
D
C911
G S
R619 48 45 40 37
Q607
36
1
35
IC601
5
30
10
12
25
13 15 20 24
C630
C376 IC307
Q331
C C226 1 8
B E
IC505
C348 4 5
R377 R378
8 5
C351 C352
R342 R343
Q333
Q313
C532 C119 R106
IC504
1 4
1
1 8
R345
R344
4 5 G C112
4
C110
S
C519 D
Q314
C301
C103
64 60 55 50 49
C210
IC804 1
1
4
48
5 1
45
5
C203
IC301 40
IC802 10
4
35
15
6 10
33
16
5 8
IC308
25 3032
C303 17 20
C801
X802 C208
C309
C235
4
5
3
C236
C304
C308
1
5
R830 R831 R833
C307
Q334
C130
Q809 L303
– 36 –
9 10 11
Q201
R229 R245 R223 C207
R123
R129 R145
R207
C107
5 4
Q303 D302
1 2 3
R109
BCE
R333
Q102
Q309
BCE Q307
C311
BCE
C313
R322 C331
5 4
R305
FB306
D301
FB305
1 2 3 C314
Q308 Q325
C316
CN802
SWITCH
UNIT
C637
CN602
MD
MECHANISM
S808
CLOCK SET
C126
5 4
IC311
1 3
C369
8
C334
R326
5
Q315
R325
C336
R347
C345
5 4
IC305
Q304
C346
1 3
C302 C333
Q205
C339
G
S
R350
D
R234 R349
Q204
C363
Q312
8
S
G
D
R134
C364
Q104
Q105
1-678-842- 12
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