Roland PX-7B - Circuit Diagram (Low) - Part 2

15
Oct. 2013 PX-7B, PX-7C
fig.d-low.eps@R
S
M
P S
M
P
S
M
P
S
M P
S
M P
S
M P
S
M
P
S
M
P
T(4)
T(5)
T(0) T(1) T(2) T(3)
T(4)
T(5)
D(11) D(10)
D(9)
D(0)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
D(8)
D(9)
D(10)
D(11)
T(5)
T(4)
T(3)
T(2)
T(1)
T(0)
HN2D01F(TE85L,F)
D123
16 34
2
5
HN2D01F(TE85L,F) D122
1
6
34 25
HN2D01F(TE85L,F) D121
1
6
34 25
HN2D01F(TE85L,F) D120
16 34 2
5
HN2D01F(TE85L,F) D119
1
6
3
4
25
HN2D01F(TE85L,F) D118
1
6
34 2
5
HN2D01F(TE85L,F)
D117
1
6
3
4
25
HN2D01F(TE85L,F) D124
1
6
3
4
25
FS101
FS102
SW117 CARBON_SW KB028-01
P1 M1
S1 S2
M2 P2
SW118
CARBON_SW KB028-01
P1
M1 S1 S2
M2
P2
SW119 CARBON_SW KB028-01
P1
M1 S1
S2 M2 P2
SW120 CARBON_SW KB028-01
P1
M1
S1
S2 M2 P2
SW121 CARBON_SW KB028-01
P1
M1 S1 S2
M2 P2
SW122 CARBON_SW KB028-01
P1
M1 S1
S2 M2
P2
SW123 CARBON_SW KB028-01
P1
M1 S1
S2 M2 P2
SW124 CARBON_SW KB028-01
P1 M1
S1
S2
M2 P2
CN101
20FMN-BTK-A (LF)(SN)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
(P0)
(M0)
(S0)
(P1)
(M1)
(S1)
(P2)
(M2)
(S2)
(P3)
(M3)
(S3)
(P3) (M3)
(S3)
D2C2
##
D2
#
F2F2 G2 G2E2
#
DIP NORMAL-TOP_type
To PWB Mid