Boss GT-100 Service Notes page 35

Mar. 2012
fig.d-panel.eps@R
CN1
TO EXP BOARD CN201
GT-100 WIRING W2 (EXP)
4
2
5
1
12
15
14
13
9
10
2 4
11
6
C22 C23
1000pF 1000pF
UnPop UnPop
VR8
RV112FF-40B1-125F-0B20K-00A2
4
2
5
1
12
15
14
13
9
10
11
VR8 VR8
6
RV112FF-40B1-125F-0B20K-00A2
RV112FF-40B1-125F-0B20K-00A2
R8 100
4
R7 100
2
R6 100
5
R5 100
1
R4 100
12
R3 100 15
R2 100 14
R1 100
13
9
10
11
6
GND
LED+3.3
C34 0.1uF
C35 0.1uF
C36 0.1uF
10uF 16V
C37
C38
10uF 16V
GND
LED9
L-34HDSL
1 2
EXP-PEDAL-SW
LED8
L-34HDSL
1 2
BANK-UP
LED7
L-34HDSL
1 2
BANK-DOWN
LED6
L-34HDSL
1 2
WARP
LED5
L-34HDSL
1 2
PHRASE-LOOP
LED4
L-34HDSL
1 2
PEDAL4
LED3
L-34HDSL
1 2
PEDAL3
LED2
L-34HDSL
1 2
PEDAL2
LED1
L-34HDSL
1 2
PEDAL1
D+3.3
1
2
3
C2
C1
0.1uF 10uF
16V
GND
3
X7 COM
D+3.3
X6
X5
X4
16
X3 VCC
X2
C7
X1
0.1uF
X0
8
GND
C
B
A
7
INH VEE
IC1
HD74HC4051P
2 6V
GND
3
X7 COM
D+3.3
X6
X5
X4
16
X3 VCC
X2
C24
X1
0.1uF
X0
8
GND
C
B
A
7
INH VEE
IC2
HD74HC4051P
2 6V
GND
3
X7 COM
X6 D+3.3
X5
X4
16
X3 VCC
X2
C33
X1
0.1uF
X0
8
GND
C
B
A
7
INH VEE
IC3
HD74HC4051P
2 6V
GND
D+3.3
15
Q11
14
Q10
13
Q9 DATA
R17 470
12
Q8
R16 470
11
Q7 CLOCK
R15 470
10
R14 470 Q6
9
R13 470 Q5
8
Q4
R12 470 7
Q3
R11 470 6
Q2
R10 470
5
Q1
R9 470
4
Q0
IC4
BU2090
GND
R33 0
EXP-VR
R32 0
OUTPUT-VR
R31 0
VR1-COM
R30 0
VR2-COM
R29 0
SW-COM
R28 33
ADMPX2
R27 33
ADMPX1
R26 33
ADMPX0
LED-DATA
LED-CLK
SW-8
SW-7
SW-6
SW-5
SW-4
SW-3
SW-2
SW-1
SW1 SKQKAKD010
SW2 SKQKAKD010
SW3 SKQKAKD010
SW4 SKQKAKD010
SW5 SKQKAKD010
SW6 SKQKAKD010
SW7 SKQKAKD010
SW8 SKQKAKD010
2
3
C39
0.1uF
Note. Use Jumper 5mm instead of 0 ohm resistor
GT-100
D+3.3
C4
100uF16V
C5 0.1uF
LED+3.3 GND
CN2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
26FE-ST-VK-N
GND
PEDAL1
PEDAL2
PEDAL3
PEDAL4
PHRASE-LOOP
WARP
BANK-DOWN
BANK-UP
GND
35