Circuit Diagram (Panel Board) - Roland AC-40 Service Notes

Jul. 2013

Circuit Diagram (Panel Board)

fig.d-panel.eps@L
REF+3.3V_PANEL
1
2
3
4
5
6
7
8
9
10
11
12
CN1
12P-SAN
REF
DGND_PANEL
R4
470
LED4
L-34HDSL
DGND_PANEL
To MAIN BOARD CN300
SW3 SW3
SS71020F-0103-6T-025-NP-017 SS71020F-0103-6T-025-NP-017
DGND_PANEL
SW5 SW5
SS71010F-0102-6T-015-NP SS71010F-0102-6T-015-NP
DGND_PANELDGND_PANEL
32
C19
C18
10uF
35V
0.1uF
7mm height type
REF
VOL05
VOL04
R6 100
VOL03
VOL02 R7 100
REF+3.3V_PANEL
3
2COM
4
SWI3
2Y3
2
SWI4
2Y2
5
SWI5
2Y1
1
VOL06
2Y0
13
1COM
11 9
VOL09
1Y3 B
15 10
VOL07
1Y2 A
14
VOL08
1Y1
12 6
VOL01
1Y0 INH
IC1
SN74LV4052AN
C9
0.1uF
DGND_PANEL REF
SS71020F-0103-6T-025-NP-017
SW4 SW4
SS71020F-0103-6T-025-NP-017
DGND_PANEL DGND_PANEL
REF+3.3V_PANEL
SS71020F-0103-6T-025-NP-017
2
3 1
4 5
SW3
REF REF
SW3,SW4
1
WIDE 2
SPACE 3
OFF 4
5
REF+3.3V_PANEL
VR1 10kB
2
C4
UnPop
REF
C16
0.1uF
REF+3.3V_PANEL
VR6 10kB
2
C14
UnPop
REF
DGND_PANELDGND_PANEL
REF+3.3V_PANEL
VR2 10kB
VOL01
2
C1
UnPop
REF
REF+3.3V_PANEL
VR7 10kB
VOL06 VOL07
2
C7
UnPop
REF
VR1 VR1 VR2 VR2
10kB
10kB 10kB
DGND_PANEL DGND_PANEL
AC-40
VOL02
10kB