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

Mar. 2012

Circuit Diagram (Main Board: CPU)

fig.d-main-2.eps@L
D+3.3
R36 R43
470k 4.7k
2
3
1
JK2
HTJ-064-12DSMP
GND
SUB EXP
1
2
3
4
5
6
7
8
UnPop
C145
CN9
0.1uF
08FMN-BMTTN-A-TF (LF)(SN)
GND
D+3.3
R44
6
SCLK
R45
8 5
VCC SI/SIO0
R46
2
SO/SIO1
C35
R47
1
0.1uF _CS
R48
4 3
GND _WP
R49
7
_HOLD
IC5
GND
MX25L3206EM2I-12G
SERIAL FLASH
XSYS-RST
24
JTAG for ESC2
D+3.3
1
2
3
4
5
6
7
8
9
10
11
12
13 XICE-RST
14
CN3
GND
14FMN-BMTTN-A-TF (LF)(SN)
UnPop
D8
1SS362FV(TPL3) D9
1SS362FV(TPL3)
2 1
R79
VR1-COM
2 1
R80
SW-COM
R81
VR2-COM
R51
R82
OUTPUT-VR
4.7k
GND
R83
R84
R85
EXP-VR
R52
4.7k
TP212
TP224 TP225
R41 10
R54 10
R59 10
R78 10
R107 10
SF-SCLK
XSF-CS
SF-SO
SF-SI
XSF-HLD
R29
0
XSF-WP
0
0
0
0
0
0
R53
10k
GND
D+3.3
R265
5.6k
IC24
BD45301G-TR
5 4
VDD VOUT
3 1
GND ER
R88
1M
GND
IC4
TC7WU04FU(TE12L.F)
TP226 3
X1
E3SB16.9344F12D33
1
D+3.3
1 7
C44
IC4
TC7WU04FU(TE12L.F) 18pF
1608
C36 GND
0.1uF
IC4
TC7WU04FU(TE12L.F)
C44,C46:10p->18p
GND
LED-DATA
ADMPX0
ADMPX1
ADMPX2
LED-CLK
PHONES-INS
SW-8
SW-7
SW-6
SW-5
SW-4
SW-3
SW-2
SW-1
CODEC-LRCK
XSWD-PWR
CODEC-BCLK
LCDCS
SW-INT
CODEC-MCLK
SDI-CODEC1
LCD-R
SDO-CODEC1
SDI-CODEC0
LCDE
LCD-D
SDO-CODEC0
D+3.3
R117
10k
RA7
EXB28V220JX
1 8
2 7
3 6
4 5
R133 22
RA8
EXB28V220JX
1 8
2 7
3 6
4 5
D+1.2
D+3.3 D+3.3
C61 C63
TP97 1uF 0.1uF
4 1
VDD TRI-STATE
C49
0.1uF
GND
2 3
GND OUT
R123
IC7
100
GND
DSCB48.0000MNS D+3.3
TP414
TP48 TP57 C62
TP47 TP55 10uF
TP46 TP52 2125
TP49
C64
0.1uF
GND
0
0
0
0
0
0
0
R11 47
MIDI-OUT
R12 47
MIDI-IN
TP185
GND
LCD1-PWM
LCD2-PWM
TP207
R96 33
R97 33
R98 33
R99 33
R100 33
R101
47
MCKO
1 8
XMSDRCS
2 7
XMWE RA5
3 6
MCKE EXB28V330JX
MDQM1 4 5
1 8
MDQM0
2 7
XMCAS RA6
3 6
XMRAS EXB28V330JX
4 5
GND
TP83
R92
TP94 TP84
0
XICE-RST TP88
TP99
R93
0
TP228
GND
TP229
D+1.2
IC4
R95
D3
TC7WU04FU(TE12L.F)
22
5 6 2 C57 C59
1uF 0.1uF
D2
R94
680
TP227
GND
3 C1
D+1.2
C46
18pF E2
1608 C58 C60
1uF 0.1uF
E3
GND
GND
E1
R10 47 H4
R126 47
H3
R127 47
J4
R7 47
J3
R9 47 G2
R6 33
G1
R13 0
H2
R14 0
H1
R15 0
J2
R16 0 J1
R17 0
K2
R18 0
K1
R19 0
L3
R20 0
L2
R110 47
L1
L4
R111 33 M2
R113 47
M1
R181 33
N3
R258 33
N2
R115 47 N1
R116 47
N4
R4
R8 47
R3
R119 47 T2
R120 33
P2
R121 33
R2
R122 33
R1
R268
2.7k
GND
RA9
EXB28V330JX
C20 H19
D20 K18 1 8
E19 K19 2 7
F19 M18 3 6
G20 M19 4 5
L20
R1 33
L21
R67 33
M20
B19 M21 R66 33
C21
B20 Y15 1 8
MA(15)
A20 AA15 2 7 RA11 MA(14)
B21 W16 3 6
EXB28V330JX
V17 4 5
MA(12)
U18 1 8
MA(11)
AA14 2 7
RA12 MA(10)
C18 AA19 3 6 EXB28V330JX MA(9)
Y19 4 5
MA(8)
AA18 1 8
MA(7)
V16 2 7
RA13 MA(6)
B18 V14 3 6 EXB28V330JX MA(5)
W14 4 5
MA(4)
AA12 1 8
MA(3)
A19 Y13 2 7
RA14 MA(2)
AA13 3 6 EXB28V330JX MA(1)
Y14 4 5
MA(0)
B3 P19 1 8
MD(15)
C4 P18 2 7
RA15 MD(14)
B6 T19 3 6 EXB28V330JX MD(13)
T18 4 5
MD(12)
C66
V20 1 8
MD(11)
0.1uF
V19 2 7
RA16 MD(10)
D5 U20 3 6 EXB28V330JX MD(9)
A6 U19 4 5
MD(8)
C7 T21 1 8
MD(7)
T20 2 7
RA17 MD(6)
R21 3 6 EXB28V101JX MD(5)
A3 R20 4 5
MD(4)
B4 P21 1 8
MD(3)
C5 P20 2 7
RA18 MD(2)
D6 N21 3 6
EXB28V101JX MD(1)
A4 N20 4 5 MD(0)
B5
C6 E18
A5 H18
A13
F21 B13
F20
C14
E21
E20 D13
C13
B16
B14
H21 B12
K21 A16
K20 A14
H20 A12
J20
B15
V21
Y16 D14
AA17
Y20 A15
W17
Y18 D15
Y17
AA16
TP35 TP37
W18
C15
R138 180k
D+3.3
GND
R139 100k
F3 C19
F2
C2
R140 0
A8 1 4
L6 UnPop
B8 2 3 ACM2012-900-2P-T002
B1
D+3.3
R141 0
D10
Y1 D+1.2
A7
B2
D9
C9
B9
C70 C76 C80 C82
A2 B11
C16 B7
0.1uF 0.1uF 10uF 10uF
C12 A11
2125 2125
D16 A9
D8
C8
D+3.3
C10
C71 C77
0.1uF 10uF
AA2
2125
AA20 B10
Y21
R137 12k D ( 0.5% ) 1608
A10
D+1.2
D11
C72 C78
A17
0.1uF 10uF
2125
C11
C65
UnPop
IC1
MB8AA4181(ESC2)
1 8
Y4 2 7
RA19
Y5 3 6 EXB28V470JX
W5 4 5
V5 1 8
W3 2 7
RA20
U4 3 6
EXB28V470JX
V3 4 5
U2 1 8
U1 2 7
RA21
U3 3 6
EXB28V470JX
T1 4 5
V1 1 8
V2 2 7
RA22
W1 3 6
EXB28V470JX
W2 4 5
V12 1 8
W12 2 7 RA23
V11 3 6
EXB28V470JX
W11 4 5
V9 1 8
W9 2 7 RA24
V7 3 6
EXB28V470JX
W7 4 5
AA8 1 8
Y8 2 7 RA25
AA9 3 6 EXB28V470JX
Y9 4 5
AA10 1 8
Y11 2 7
RA26
AA11 3 6 EXB28V470JX
Y12 4 5
RA48
EXB28V470JX
AA6 1 8
XECS
Y6 2 7
XERAS
AA7 3 6
XECAS
Y7 4 5 XEWE
R146 47
Y2 ECKE
AA4 R147 47
ECKO
IC1
MB8AA4181(ESC2)
GT-100
AMP-CTL
XLCD-RST
XCODEC-PDN
XPWR-OFF
XOUTPUT-MUTE
OUTPUT-GAIN
XSF-WP
D+3.3
LCD1-PWM
LCD2-PWM
JK3
UBR23-4K5100
USB
DEVICE
TP230
C83
R150
1uF
UnPop
GND
R152 R155
R153
EZJZ1V500AA EZJZ1V500AA
UnPop EZJZ1V500AA UnPop
UnPop
GND
EA(14:0)
EA(14)
EA(13)
EA(12)
EA(11)
EA(10)
EA(9)
EA(8)
EA(7)
EA(6)
EA(5)
EA(4)
EA(3)
EA(2)
EA(1)
EA(0)
ED(15)
ED(14)
ED(13)
ED(12)
ED(11)
ED(10)
ED(9)
ED(8)
ED(7)
ED(6)
ED(5)
ED(4)
ED(3)
ED(2)
ED(1)
ED(0)
R160
0