Roland AC-33 - Circuit Diagram (Guitar Input Board); Circuit Diagram (MIC Input Board)

32
Feb. 2010 AC-33
Circuit Diagram (Guitar Input Board)
fig.d-guitar-input.eps@L
Circuit Diagram (Mic Input Board)
fig.d-mic-input.eps@L
0.25Vrms
0.23Vrms
G
V_MC+10V
AGND_MC
V_MC+10V
AGND_MC
V_MC+10V
AGND_MC
AGND_MC
AGND_MC
V_MC+1_2V
AGND_MC AGND_MC
L400
100
R400
220pF
C403
IC400
NJM14558D
3
1
2
NJM14558D
IC400
48
L401
100
R414
D403
1SS133 T-77(PB FREE)
D402
1SS133 T-77(PB FREE)
D405
1SS133 T-77(PB FREE)
D404
1SS133 T-77(PB FREE)
220pF
C415
C420
10uF
50V
0.1uF
C421
1000pF
C400
1000pF
C401
C402
10uF
50V
C404
10uF
50V
YKB21-5006
JK401
1
8
7
3
2
4
5
JY-5033A*030
JK400
2
3
1
100k
R401
100k
R402
5.6k
R405
5.6k
R415
5.6k
R406
5.6k
R416
180pF
C413
180pF
C414
5.6k
R418
5.6k
R410
C412
0.47uF
50V
MIC/LINE INPUT
JUMPER 5mm
JUMPER 5mm
FGND
0.0062Vrms
0.0123Vrms
0.0123
V