Circuit Diagram (Main, Vr, Sw Board); Rd901F-40-15Fw-B50K-00Dq7 - Roland BOSS AD-2 Service Notes

Nov. 2015

Circuit Diagram (Main, VR, SW Board)

fig.d-main-2.eps@L
VR BOARD[2/4]
MAX
VR1

RD901F-40-15FW-B50K-00DQ7

MIN
MAX
VR2
RD901F-40-125FW-B50K-00D94A
MIN
MAX
VR3
RD901F-40-15FW-B50K-00DQ7
MIN
GND
VR1 VR1 VR2
RD901F-40-15FW-B50K-00DQ7 RD901F-40-125FW-B50K-00D94A
18
LED1
L-7104SRT
VR+3.3
2 1
CHECK
1
1
2
2
3
3
4
AMBIENCE
4
5
5
6
2
6
7
7
8
8
C201
CN5
10uF
2012
To MAIN BOARD(CN3)
NOTCH
2
GND
ACOUSTIC RESONANCE
2
VR2 VR3 VR3
RD901F-40-15FW-B50K-00DQ7
GND
RIBBON CABLE D+3.3
8X112-P2.0
1
1
2
2
3
3 C101 10uF 2012
4
4
5
5
6
6
7
7
8
8
CN3
To VR BOARD(CN5)
GND
IC4 IC4
TC7W04FK TC7W04FK
1 7 6 2
RESET
TP110
IC4
TC7W04FK
3 5
RST-DCDC
8
TP109
C14
D+3.3
0.1uF
4
C31
IC4
0.1uF
GND
TC7W04FK
GND
VR-AMBIENCE
VR-NOTCH
VR-RESONANCE
PVCC
Q13
2SC4738-GR
1
R75
22k
1
TP46 RED-LED
R73
Q14
680
2SA1832-GR
R86
UnPop
GND
VIOLET
W14
1
W12
GREEN
SW BOARD
[4/4]
AD-2
E2 E2
VCC E1
E0
SDA
VSS SCL
_WC
IC3
M24512-RMN6TP
GND
W13
W11