Sharp MD-R3H Service Manual page 56

MD-R3H
A
24
B
C
D
15
P55 9 - B
E
TO MD SPINDLE
PWB
16
22
Q1601
F
R1617
23
R1609
TO MD SLED
MOTOR
P55 9 - C
CN1603
17
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
1
CN1902
24
R1940
1
2
R1266
R1263
C1610
R1262
R1261
C1203
C1205
R1611
C1204
R1612
1
2
R1668
L1601
20
19
21
23 are waveform numbers shown in page 60, 61.
2
Figure 56 WIRIMG SIDE OF P.W.BOARD (7/8)
P50 4 - A
TO MAIN PWB
CNP401
MD MAIN PWB - E (TOP VIEW)
1
Q1820
1
R1827
R1463 R1459 R1939
C1425
R1461
J1921
8
14
IC1916
1
7
15
20 16
IC1202
1 5 6
L1203
C1210
50
26
51 30
40
45 35
55
20
60
15
IC1201
65
10
70
5
80
95
85 90
75
100
76
C1208
R1210
RC120
L1102
L1201
18
14 13
3 4
– 56 –
CN1252
1
2
C1251
C1252
R1251
1
Q1253
Q1254
7 1
R1223
IC1251
14
8
R1964 R1968
16
IC1907
11
1
1 5
C1952
C1955
3
4
R1963 R1962
1
14
C1992
10
7
8
1
25
1
C1202
28
R1100
5
TO MAGNETIC
HEAD
P55 9 - H
9
8
D1990
10
11
3
12
2
FLEXIBLE
PWB
P55 9 - G
TO MD PICKUP
UNIT
6