Roland V-Accordion FR-8x Service Notes page 70

July 2013
CIRCUIT BOARD
CIRCUIT DIAGRAM (AFTER-TOUCH)
To
After
Touch Sensor
00-8370-049-000-800
CIRCUIT BOARD
View from component side
CIRCUIT DIAGRAM (MASTER SWITCH)
1
To
2
3
POWER AMP B.
4
(CN 81)
5
6
CN1
53253-0670
94
ASSY 7783615000
CN2
1
2
3
4
R1
ASSY 7783601000
+5VREF
R5
C7
+5VREF
1K
100nF
TP8
D
100
TP10
R7
MOD
R6
C4
D 10K
100nF
1
2 3
SW1
SSCUANP
(AFTER-TOUCH)
470
R2
470
D
(MASTER SWITCH)
C5
1uF
R9
180K
R8
TP9
10K
2
Q1 IC7
2SA1037
3
2
KTIR0811S
D
View from component side
CN1
TO
1
POWER AMP
2
3
BOARD
4
(CN36)
53015-0410
D
R10
1K8
C6
100nF
4
1
R11
220
D