Circuit Diagram (Contrast) - Roland VS-2400CD Service Notes

Jan.2003

CIRCUIT DIAGRAM (CONTRAST)

fig.cont-c
+ 5 L1
D
LQH4N151K
R7
IC2
180
NJM2360M
8
CD
7
SI
6
V+
5
INV GND
C2 R11
100/6.3 1k
D D
+ 5
TO MAIN BOARD D
CN3
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
B11B-PH-K-S
D
D
12
D Q
11
CK
Q
D
D1
1SS294 Q1
2SC4117GR
1 3
R9
R8
3.3k
1
1
CS
2 C1 100
ES
560p
3
GT
R10
4
18k
C3 C4 R12
47/35 47/35 ERTJ1VR153J
D D D D
+ 5
D
IC3A
2 5
D Q
3
CK
6
Q
TC74VHC74F
+ 5
D
+ 5
D
IC3B IC3C
TC74VHC74F
9
8
TC74VHC74F
D
IC1E
BA10324AF
-
C5
0.1
+
D D
R13
15
IC1A BA10324AF
R1
2.2k R14
2
-
1
3
+
15
IC1B BA10324AF
VR1A R2
2
EVUF2AE25B53 2.2k R15
6
-
7
5
+
15
IC1C BA10324AF
R3
22k R16
9
-
8
10
+
D 15
IC1D BA10324AF
R4
2.2k R17
13
-
14
12
+
15
R5
2.2k
D
C6
4.7/35
D
C7
4.7/35
D
C8
4.7/35
D
C9
4.7/35
D
+ 5
D
C10
4.7/35
CN1
D 1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
TO LCD UNIT
15
15
16
16
17
17
18
18
19
19
20
20
R6 3.3
21
21
22
22
23
23
23FLZ-RSM1-TB
D
VS-2400CD
71