Service manual
– 28 –
MD-SR50H/50W/60E/60W
• The numbers 1 to 18 are waveform numbers shown in page 31.
: Through-hole where the top, bottom and +B patterns are connected.
: Through-hole where the top, bottom and hround patterns are connected.
: Through-hole where the top and bottom patterns are connected.
A
B
C
D
E
F
G
H
1
23456
Figure 28 WIRING OF P.W.BOARD (1/3)
R291
HOLD
SW402
IC257
R292
TP803
TP171
TP106
C291
TP441
C454
R464
TP100
L171
C171
C172
CK112
C110
C109
C112
C111
C106
C107
TP105
TP144
TP110
TP139
TP118
TP103
TP101
C161
TP114
R106
Q101
CK105
IC101
C102
CK101
CK107
R154
C103
R408
TP109
C104
R407
TP111
CN101
R105
TP102
TP116
TP404
CK106
CK104
CK102
TP115
C130
CK103
TP151
TP117
R422
TP145
TP108
TP119
CK108
TP133
TP121
TP130
TP131
TP132
TP122
TP120
TP205
R101
R102
R103
R104
CK901
TP351
C121
C122
C123
C124
R920
R412
TP409
TP665
TP407
TP201
R411
IC351
R413
C357
TP658
R414
IC402
TP408
TP410
TP411
R415
TP655
TP659
R416
TP601
R404
R406
R405
TP405
TP652
R403
TP651
TP406
TP660
TP653
C604
C603
L604
L603
TP661
C609
R921
TP657
TP610
CN601
R922
L609
TP654
C836
IC873
IC601
L610
C622
TP666
C610
TP662
TP663
TP664
C837
TP602
C651
R600
TP708
EJECT
SW401
L710
C715
Q711
TP707
TP706
C734
C733
R728
R717
C704
C731
R701
TP202
R718
C505
C506
R727
TP702
C703
R703
TP703
C713
TP713
R502
C502
IC701
TP701
TP704
R715
IC501
TP714
C501
R713
R716
TP712
R501
R714
TP705
R729
TP500
C721
TP711
R730
L500
C722
TP727
TP728
TP729
TP721
L800
TP722
TP805
D801
TP772
TP725
TP726
TP723
R492
TP801
TP802
C492
TP771
IC703
R765
D494
R767
R762
R768
C491
TP724
R766
D495
D496
L801
R808
R810
C765
C766
C758
D492
L491
C481
C760
R757
R758
R754
R761
TP453
R457
TP412
TP451
TP452
R456
TP481
TP454
R458
R455
TP482
TP456
C482
CN482
CN451
TP483
TP460
TP486
TP458
TP461
TP487
TP489
TP463
TP459
TP488
R451
R452
R453
R454
TP462
TP206
TP656
R463
TP457
R806
TP455
TP419
R465
D803
TP210
R461
Q891
TP209
R466
R811
TP417
R802
D431
TP416
TP208
D802
R801
R809
R803
C431
TP204
R431
IC431
R853
IC852
TP403
TP400
IC401
C857
C860
C856
R854
TP401
C825
XL401
R855
R856
R402
D822
TP414
C830
R831
TP413
C876
R823
C828
IC822
C401
R832
TP415
TP212
R871
C839
C827
TP203
TP402
C826
IC871
R826
R443
R423
R425
R424
C206
TP207
D823
C259
TP804
C200
TP200
R287
R269
R283
R819
R277
IC809
R261
R262
R263
R266
R267
TP809
Q257
R284
IC259
R279
R271
R270
C255
IC256
IC258
IC253
IC260
TP842
R288
R281
R286
C254
R250
R272
R256
R255
R257
R285
R282
Q251
D281
R252
IC255
IC251
R253
R251
R293
Q250
TP841
D251
C251
C253
R254
C252
R295
R294
R296
IC892
R827
R824
R825
R857
D461
C714
1
5
10
15
20
25
30
35
40
45
50
55
60
65
70
80
85
90
95
PWB-A(TOP VIEW)
1
4
5
8
5
8
1
4
1
1
1
1
1
1
1
1
1
3
3
3
3
3
4
4
4
4
4
4
4
4
6
6
6
6
1
3
4
6
1
3
4
6
5
5
5
8
8
3
2
100
75
76
26
1
2
3
J801
DC IN
J703
REMOTECONTROL/
HEADPHONES
1
1
2
3
3
4
1
1
1
5
5
10
12
1
5
10
12
13
15
20
24
13
15
20
24
8
9
10
15
16
8
7
2
1
6
5
3
4
13
1
9
1
1
5
10
12
15
20
13
24
25
30
35
36
40
37
45
48
1
5
10
12
15
20
13
24
25
30
35
36
40
37
45
48
1
22
7
5
5
1
1
4
8
8
10
14
1
16
4
5
TO MECHANISM
FLEXIBLE PWB
ASS'Y
P30 6-C
TO OPTICAL
PICKUP UNIT
P30 1-D
BATTERY
TERMINAL,+
BATTERY
TERMINAL,-
51
6
3
4
2
3
9
13
15
18
5
7
8
6
1
14
11
10
TO LCD
ASS'Y
P30 5-E
TO KEY
FLEXIBLE
PWB ASS'Y
P30 3-E
17
16
3
4
2
J702
MIC IN