Circuit Diagram (Jack Board) - Boss GT-100 Service Notes

Mar. 2012

Circuit Diagram (Jack Board)

fig.d-jack.eps
JK101
GUITAR INPUT
HTJ-064-12IMP
MK103
GT-3 JACK SHIELD COVER
JK102
AUX IN
HSJ0857-0162109
JK103
L(MONO)
HTJ-064-12IMP
MAIN OUTPUT
JK104
R
HTJ-064-12IMP
JK105
PHONES
HTJ-064-05A
JK107
SEND
HTJ-064-12IMP
GND LIFT
GND
SW101
RSS037-222N-AACD1B-A
GND
JK106
RETURN
HTJ-064-12IMP
MK102
GT-10 JACK COVER L
UnPop
36
GND
2
4
R102
C102
1
10k
1uF
6Y1H105J-T2
C101
10pF
GND
10
20
30 A+12
GND
D101
GND
1SS133 T-77(PB FREE)
R107 330
2
3
1
R109 330
GND
2
4
1
C100
470pF
GND
GND
2
4
1
C130
470pF
GND
GND
5
4
2
3
7
8
1
C104 C114 C116 C117
R124
UnPop UnPop
100k 4700pF 4700pF
GND
GND
R122
2
4
1
C103
470pF
1
2 3
GND
SW101
RSS037-222N-AACD1B-A
6
5 4
SW101
RSS037-222N-AACD1B-A
R117
10k
2
4
1
GND
10
20
30
GND
R103
1%
10k R104 12k Gain=+6.85dB
1%
C109
6
10uF 25V
7
5
IC101
NJM2082D-D
R105
1M
GND
D102
1SS133 T-77(PB FREE)
A-12 C112
10uF 25V
C113
10uF 25V
C111
C110
1000pF
1000pF
GND
R111
1k
R113
1k
C128
220uF 16V
C129
220uF 16V
R123
100k
1k
R118
1%
10k R119 12k
1%
Gain=+6.85dB
GND
2
1
3
IC102
C119 10uF 25V
NJM4580D
1uF
6Y1H105J-T2
R120
100k
GND
D104
A+12
1SS133 T-77(PB FREE)
D103
A-12
1SS133 T-77(PB FREE)
IC102
NJM4580D
6
7
5
GND
2
IC101
1
NJM2082D-D
3
IC101
NJM2082D-D
GND
INPUT
AUX-L
AUX-R
MAIN-L
MAIN-R
PHONES-L
PHONES-R
PHONES-CNT
SEND
RETURN
GND
C126
A+12
C124
10uF
C122
25V
0.1uF
IC102
NJM4580D
C125
C123
10uF
0.1uF GND
25V
A-12
GT-100
A+12
C107
10uF
C105
25V
0.1uF
C108
C106
10uF
0.1uF
25V
GND
A-12
A+12
CN101
16
15
14
13
12
11
10
9
8
TO MAIN BOARD CN7
7
6
5
4
3
2
1
GT-100 WIRING W1 (INPUT-OUTPUT)
A-12