6
PSR-740 BLOCK DIAGRAM
PSR-740/PSR-640
28CA1-8814457
PN
IC29
IC33
IC24
108
114
120
123
122
5
43
48
114
94,96
IC23
IC25
IC31
IC27
IC26
IC32
IC3
IC1
IC30
IC2
8
IC22
IC28
33
232
231
34
35
234
134
77
76,222,225
86,98,99
102,103
223,221
81
101
135
136
IC6
IC4
IC14
IC14
IC7
IC8
IC15
IC11
IC12
IC9
IC310
IC320
IC210,220
IC510
IC410
IC610
IC710
IC13
IC14
IC15
11 13 32
14 29 28 13
14 29 28 13
IC10
IC19
IC18
IC20
IC21
IC16
IC17
IC5
IC1
IC2
PC1
19
6
17
11
11
TA2
TA1
13
14
27
28
29
17-19 21
5
7
(1)
11 13 32
22 24 29
10 13 14 37
1 3 5 7 20 21 40
4
39
4
15
14
13
12
11
(2)
(2)
(1)
Summary of Contents for PortaTone PSR-640
Page 4: ...4 PSR 740 PSR 640 ...
Page 22: ...22 PSR 740 PSR 640 DM Circuit Board PSR 640 Component side Pattern side 2NA V350510 1 2 1 ...
Page 27: ...27 PSR 740 PSR 640 ...
Page 28: ...28 PSR 740 PSR 640 ...
Page 32: ...32 PSR 740 PSR 640 ...
Page 33: ...33 PSR 740 PSR 640 ...