Circuit Diagram (Main Board: Analog) - Boss GT-100 Service Notes

Mar. 2012

Circuit Diagram (Main Board: Analog)

fig.d-main-3.eps@L
A+12
A+12
CN7
A2001WV2-16P
16
15
INPUT
14
13
R125
AUX-L
12
AUX-R
11 R128
10
MAIN-L
9
MAIN-R
8
7
PHONES-L
6
PHONES-R
5
PHONES-INS
4
3
SEND
2
RETURN
1
GND
A-12
26
D ( 0.5% )
D10
1SS362FV(TPL3)
2 1
f1=8.84kHz
A-12
f2=1.339kHz
A+12 Gain=+16.39dB
D7
1SS362FV(TPL3)
R70
2 1
10k
D ( 0.5% )
C254
TP323 TP324 A-12
1800pF
R197
0
56k
D ( 0.5% )
0
TP321
R71
1k
D ( 0.5% )
C255
0.018uF
R233
5.6k
D ( 0.5% )
f1=8.84kHz
f2=1.339kHz
Gain=+16.39dB
TP322
C185
10uF
16V
f1=8.84kHz
f2=1.339kHz
Gain=+16.39dB
R73
10k
D ( 0.5% )
C256
1800pF
R196
56k
D ( 0.5% )
R74
1k
D ( 0.5% )
C257
0.018uF
R234
5.6k
D ( 0.5% )
f1=8.84kHz
f2=1.339kHz
Gain=+16.39dB
TP338
C236
10uF
16V
C215 UnPop
R221
47k
D ( 0.5% )
2
1
R219
3
47k
IC3
C225 UnPop
NJM4580M(TE3)
R224 47k
GND TP327
D ( 0.5% )
6
7
R222
5
47k
D ( 0.5% ) IC3
NJM4580M(TE3)
GND
CODEC-BCLK
CODEC-MCLK
CODEC-LRCK
XCODEC-PDN
C204 UnPop
Gain=-18.31dB
R182 6.8k
D ( 0.5% )
C161
2
RV2-6V470MU-R
1
3
IC17
NJM2115V(TE1)
TP320
C201 UnPop
C162
RV2-6V470MU-R
R114 10k
D ( 0.5% )
Gain=+5.04dB
6
7
TP319
5
IC17
NJM2115V(TE1)
A+3.3
D ( 0.5% )
C217 C218
C190
10uF
0.1uF 16V
0.1uF
D ( 0.5% )
IC17
NJM2115V(TE1)
GND
C197 UnPop
R183 5.6k
Gain=-20dB
D ( 0.5% )
2
1
3
C154
IC18
10uF
NJM2115V(TE1)
TP336
16V
C194 UnPop
C153
10uF
R124 8.2k
16V
D ( 0.5% )
6
7 Gain=-3.31dB
5
IC18
NJM2115V(TE1)
A+3.3
C210
D ( 0.5% )
C211
C181
10uF
0.1uF 16V
0.1uF IC18
D ( 0.5% )
NJM2115V(TE1)
GND
GT-100
TP328
A+3.3
C207
R243
4.7
C191
10uF
0.1uF
16V
GND
2
LIN
1
RIN
13
SDO-CODEC0
SDTI
14
TP398
LRCK
15
MCLK
16
BCLK
7
DEM1
6
DEM0
17
PDN
12
CKS3
11
CKS2
10
CKS1
9
CKS0
IC20
AK4556VT-E2
GND
GND
A+3.3
C222
0.1uF
R242
C235
10
10uF
16V
GND
2
LIN
1
RIN
13
SDO-CODEC1
SDTI
14
TP401
LRCK
15
MCLK
16
BCLK
7
DEM1
6
DEM0
17
PDN
12
CKS3
11
CKS2
10
CKS1
9
CKS0
IC19
AK4552
GND
GND
OUTPUT-GAIN
C216
0.1uF
C187
10uF
16V
GND
19
LOUT
20
ROUT
R217 10
8
SDTO
18
VCOM
C183
C214
10uF
0.1uF
16V
GND
C219
0.1uF
C182
10uF
16V
GND
19
LOUT
20
ROUT
R216 10
8
SDTO
18
VCOM
C184
C220 1uF
0.1uF 50V
GND
XOUTPUT-MUTE