Block Diagram/Wiring Diagram - Roland JD-XA Service Notes

Jul. 2015

Block Diagram/Wiring Diagram

fig.WIRING-BLOCK.eps@L
PSB-7U
USB HOST
JK11
Prog ROM
Work RAM x2
IC34/35 IC33
Effect RAM
IC8
Wave ROM
IC2
LED PWM
TAP SW/LED
LCD SSU
CN2 CN5
5
CN10 CN11
PANEL-L
BOARD
AD
I/F
LED I/F
SW I/F
D+5V
CN8 CN6
11 11
CN701 CN801
ENCODER1 ENCODER2
BOARD BOARD
18
MSK-2
49Keys
1
MIDI IN/OUT CN29
JK5
Keyscan CPU
MB9AF111LA
IC66
IC21
SSC
PCA9306
IC37
DCUR
Work RAM
IC44
CN6
3 4
CN4
AD
I/F
LED I/F (SEQUENCER)
SW I/F (SEQUENCER)
10
CN2 CN1
13
CN922
CN5
SIDE BOARD
14
CN3 CN1003
CN1001
12
CN1
CN9
BNEDER WHEEL
CN7
11
CN901
ENCODER3
BOARD
CN732
AFTER SENSOR
CN731
USB FUNC CN11
JK10
Work RAM
IC51
Effect RAM
IC8
CODEC
ESC2
WM8778SEDS
IC45
8ch DAC
AK4358VQ
IC29
PANEL-R
BOARD
LED I/F
SW I/F
11
CN3
PB-H0301-BK
12
CN921
BENDER ASSY
WHEEL
BOARD
CN1002
15
BW-G0501
ASSY
AFTER
BOARD
2
CTRL1 CTRL2
JK2 JK3
WHEEL
BENDER
ESC2
IC1
ADC
AK5384VFP
IC3
DAC x2
CS4398CZZR
IC10/19
DAC
CS4398CZZR
IC4
IC63
MAIN BOARD
CN801
ENCODER4
BOARD
JD-XA
HOLD
JK4
CV OUT1
JK8
GATE OUT1
JK6
CV OUT2
JK9
GATE OUT2
JK7
6
CN1 CN3
7
CN7 CN4
8
CN9 CN1
9
CN4 CN2