Sharp MD-R3 Service Manual page 56

MD-R3
A
24
B
24
C
D
15
1
P55 9 - B
E
2
TO MD SPINDLE
PWB
16
22
Q1601
F
R1617
23
R1609
TO MD SLED
MOTOR
1
P55 9 - C
CN1603
2
17
L1601
G
:Through-hole where the top, bottom and +B patterns are connected.
:Through-hole where the top, bottom and ground patterns are connected.
H
:Through-hole where the top and bottom patterns are connected.
The numbers 1 to 23
1
TO MAIN PWB
CN1902
R1459
R1463
R1461
R1940
20
1
R1266
50
51
R1263
C1610
R1262
55
R1261
C1203
60
65
C1205
R1611
70
C1204
R1612
75
76
RC120
R1668
20
19
21
are waveform numbers shown in page 60, 61.
2 3
Figure 56 WIRIMG SIDE OF P.W.BOARD (7/8)
P50 4 - A
CNP401
MD MAIN PWB - E (TOP VIEW)
1
Q1820
1
R1827
R1939
Q1253
C1425
7 1
IC1251
14
8
J1921
8
14
IC1916
1
7
15 11
16
1 5
IC1202
3
4
6
5
10
L1203
C1210
26
40 30 25
45
35
20
15
IC1201
10
5
80
90 95
85 1
100
C1202
C1208
R1210
L1102
R1100
L1201
18
14 13
4
– 56 –
CN1252 TO MAGNETIC
1
2
HEAD
C1251
P55 9 - H
C1252
R1251
1
Q1254
R1223
R1964 R1968
16 9
IC1907
1 8
C1952
C1955
R1963 R1962
1 14
C1992
D1990
10
7 8
11
3
1
12
2
FLEXIBLE
PWB
P55 9 - G
TO MD PICKUP
UNIT
28
5 6