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Sep. 2017
Block Diagram/Wiring Diagram
fig.block.eps@L
MAIN BOARD
AVCC
2SK880
JK7
GUITAR 1
buffer
GTR1
DET
AVCC
2SK880
JK2
GUITAR 2
buffer
GTR2
DET
AVCC
JK3
2SK880
RETURN
buffer
RTN
DET
SW2
POWER
PVCC
JK1
Q7
DC IN
MOS-FET
FOR PSA-**S
(9.65-8.55V)
ripple
F1
CN1
1
AA, LR6 x 6
10
A+3.3
NJM2115
Pre-Em
Multiplexer
(GAIN ctl)
A+3.3
NJM2115
Pre-Em
Multiplexer
(GAIN ctl)
A+3.3
NJM2115
Pre-Em
D+1.2
D+3.3
CH1
CH2
IC2
AVCC
AVCC-PHONE
DC-DC
CH3
Reg
ripple
filter
Reg
XOFF_PWR
XSWD_PWR
JTAG
Serial Flash
D+3.3
RESET
IC
48MHz
X1
16.9344MHz
Buffer
XTAL
A+3.3
A+3.3
IC18
CODEC
NJM2115
(AK4556)
AFAD
SDDA1
A+3.3
SDAD1
IC17
A+3.3
CODEC
(AK4556)
NJM2115
AFAD
SDDA2
A+3.3
SDAD2
IC19
A+3.3
CODEC
(AK4556)
NJM2115
AFAD
SDDA0
SDAD0
SDDA0-2
SDAD0-2
FB4.9
AF+3.3
port
port
D+3.3
TRCD0-3/DRCCKO
TRST/TCK,SWCLK/SMS,SWDIO/TDI/TDO,SWV
SFI
SFICKO/SFICSO/SFIDIN/SFIDO/_SFIHLD
_RESET
CKCPU
CKUDL
UD
JK9 USB
FUNCTION
AD-10
AVCC
IC10
NJM4580
De-Em
IC3
NJM4580
De-Em
AVCC-PHONES
IC15
NJM4580
De-Em
AVCC
NJM4580
De-Em
D+1.2
D+3.3
MUTE Ctrl
PB7
VDD
VDE
IC20
ESC2
D+3.3
D+3.3
IC5
IC6
E-RAM
W-RAM
(64Mbit)
(256Mbit)
MUTE DTr
MUTE DTr
MUTE DTr
MUTE DTr
MUTE DTr
AIN 0:1
port
AIN2,3
AIN 4:7
ADMPX0,1
PF12/PF15
BUDO0,1,2/BUCK
BULCK/PA0
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