Roland JD-XA Operating and maintenance manual

SERVICE NOTES
Issued by RJA
Copyright © 2015 Roland Corporation
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of Roland Corporation.
CC-KWS17058980E0
Jul. 2015 JD-XA
Table of Contents
Cautionary Notes ..............................................................2
Specifications .....................................................................2
Location of Controls (Panel L).........................................4
Location of Controls (Panel R) ........................................6
Location of Controls (Rear)..............................................7
Exploded View ..................................................................8
Exploded View Parts List.................................................9
Plain View ........................................................................10
Exploded View (Fig.A)...................................................12
Exploded View (Fig.A) Parts List .................................13
Plain View (Fig.A) (1) .....................................................14
Plain View (Fig.A) (2) .....................................................15
Disassembly Procedure ..................................................16
Important Notes on Assembly ......................................16
Keyboard Parts List.........................................................17
Block Diagram/Wiring Diagram..................................18
Parts List ...........................................................................20
Verifying the Version......................................................23
Data Backup and Restore Operations ..........................23
Performing a Factory Reset............................................23
Updating the System ......................................................23
Test Mode .........................................................................24
Analog Adjustment Mode .............................................32
Revise Information
Jul. 28, 2015 p. 8, p. 21 Changed screws.

2
Jul. 2015 JD-XA
Cautionary Notes
Before beginning the procedure, please read
through this document. The matters described may
differ according to the model.
Back Up User Data!
User data may be lost during the course of the procedure. Refer to Data
Backup and Restore Operations (p. 23) in the Service Notes and save the
data. After completing the procedure, restore the backed-up data to the
product.
Part Replacement
When replacing components near the power-supply circuit or a heat-
generating circuit (such as a circuit provided with a heat sink or including a
cement resistor), carry out the procedure according to the instructions with
respect to the part number, direction, and attachment position (mounting so as
to leave an air gap between the component and the circuit board, etc.).
Parts List
A component whose part code is ******** will not be supplied as a service part
because one of the following reasons applies.
• Because it is supplied as an assembled part (under a different part code).
• Because a number of circuit boards are grouped together and supplied as
a single circuit board (under a different part code).
• Because supply is prohibited due to copyright restrictions.
• Because reissuance is restricted.
• Because the part is made to order (at current market price).
• Because it is carried in electronic data on the Roland web site.
• Because it is a package or an accessory irrelevant to the function
maintenance of the main body.
• Because it can be replaced with an article on the market. (battery or etc.)
Circuit Diagram
In the circuit diagram, “NIU” is an abbreviation for “Not in Use,” and
“UnPop” is an abbreviation for “Unpopulated.” They both mean non-mounted
components. The circuit board and circuit board diagram show silk-screened
indications, but no components are mounted.
Specifications
Roland JD-XA: Synthesizer keyboard
Keyboard
49 keys (with velocity and channel aftertouch)
Sound Generator Section
Maximum Polyphony
Analog Part: 4 voices
Digital Part: 64 voices (varies according to the sound generator load)
Structure: Analog/Digital Crossover Synthesizer
Analog Part: 4 parts (2 OSCs + AUX, 1 Filter, 1 AMP, 2 Pitch ENV,
1 Filter ENV, 1 AMP ENV, 2 LFOs and 1 MOD LFO)
Digital Part: 4 parts (3 Partial (3 OSCs, 3 Filters, 3 AMPs, Envelops for
each section and LFOs))
(Digital Part uses SuperNATURAL Synth tones that is
compatible with the Integra-7.)
User Program Memory
Internal: 256
USB Flash memory: 256
The patterns of Arpeggio and Sequence are saved as programs.
Analog-OSC Section
Oscillator waveforms: Saw, Square, Pulse/PWM, Triangle, Sine
Knobs/Sliders: Pitch, Fine, Cross Mod, Pulse Width, Pulse Width
Modulation
Pitch Envelopes: Attack, Decay, Envelope Depth
Modulation: Cross Modulation, Ring Modulation, Oscillator Sync
(A-OSC2 is applied as modulation to A-OSC1.)
Analog-FILTER Section
Filter Type: LPF1, LPF2, LPF3, HPF, BPF, Bypass
Knobs: Cutoff, Resonance, Key Follow, Envelope Depth, HPF, Drive
Envelope: Attack, Decay, Sustain, Release
Analog-AMP Section
Knobs: Level
Envelope: Attack, Decay, Sustain, Release
Digital-OSC Section
Oscillator waveforms: Saw, Square, Pulse/PWM, Triangle, Sine, Variation
Knobs/Sliders: Pitch, Fine, Pulse Width, Pulse Width Modulation
Pitch Envelopes: Attack, Decay, Envelope Depth
Modulation: Ring Modulation
(Partial2-OSC is applied as modulation to Partial1-OSC.)

3
Jul. 2015 JD-XA
Digital-FILTER Section
Filter Type: LPF1, LPF2, LPF3, HPF, BPF, Variation, Bypass
Knobs: Cutoff, Resonance, Key Follow, Envelope Depth, HPF
Envelope: Attack, Decay, Sustain, Release
Digital-AMP Section
Knobs: Level
Envelope: Attack, Decay, Sustain, Release
LFO Section
LFO Waveform: Triangle, Sine, Saw, Square, Sample&Hold, Random
Knobs/Sliders: Rate, Fade Time, Pitch Depth, Filter Depth, Amp Depth
Tempo Sync
Mixer Section (For Analog Part)
Level: A-OSC 1, A-OSC 2, AUX
AUX: White Noise, Pink Noise, Digital Part, MIC
MIC
Vocoder
MIC Modulation
Effects
MFX: 8 systems, 67 types (each part has a MFX)
Part EQ 8 systems (each part has a Part EQ)
TFX: 2 systems, 29 types
DELAY
REVERB: 6 types
Master EQ
Mic Input Reverb:8 types
Pattern Sequencer
Track: 16
Patterns are saved as a program.
SMF import supported.
Arpeggio
Preset pattern: 64
Patterns are saved as a program.
Controllers
Pitch bend and modulation lever
Pitch and modulation wheels
Display
16 characters 2 lines LCD
External Storage
USB Flash memory
Connectors
PHONES jack: Stereo 1/4-inch phone type
MAIN OUTPUT jacks (L/MONO, R): 1/4-inch TRS phone type
ANALOG DRY OUTPUT jack: 1/4-inch phone type
CLICK OUTPUT jack: Stereo 1/4-inch phone type
MIC jack: Combo type (XLR, 1/4-inch TRS phone), balanced
FOOT PEDAL jacks (CTRL 1, CTRL 2, HOLD)
CV/GATE OUTPUT jacks (2 systems): Miniature phone type
(CV: These jacks support OCT/V (Hz/V is not supported). GATE: They output
+5 V.)
MIDI connectors (IN, OUT)
USB COMPUTER port (USB Hi-Speed AUDIO/MIDI): USB B type
(Use a USB cable and a computer with a USB port that support USB 2.0 Hi-
Speed.)
USB MEMORY port: USB A type
DC IN jack
Power Supply
AC Adaptor
Current Draw
3,000 mA
Dimensions
899 (W) x 388 (D) x 111 (H) mm
35-7/16 (W) x 15-5/16 (D) x 4-3/8 (H) inches
Weight
6.5 kg
14 lbs 6 oz
(excluding AC Adaptor)
Accessories
Owner’s Manual (#5100045491)
AC Adaptor (#04236112)
Power Cord (#5100012293, #5100000692, #5100000564, #5100039367,
#5100018086, #05017301, #5100029122)
Options (sold separately)
Keyboard Stand (*1): KS-18Z
Pedal Switch: DP series
Expression Pedal: EV-5
USB Flash Memory (*2)
*1 When using the KS-18Z ensure that the height of the unit is one meter or lower.
*2 Use USB Flash Memory (supports USB 2.0 Hi-Speed Flash Memory) sold by
Roland. We cannot guarantee operation if other products are used.
* Printed matters will not be supplied after the end of the production. Then,
download the electronic file from the Roland web site.
* In the interest of product improvement, the specifications and/or appearance of
this unit are subject to change without prior notice.

4
Jul. 2015 JD-XA
Location of Controls (Panel L)
fig.Panel-L.eps
8910
19
1
5
11
16 16
16
17
143 4
2
12
18
5
15 15145
12 1213
1476
No. Part Code Part Name Description Q’ty
1 5100042388 PANEL SHEET A 1
2 5100042391 PANEL SHEET B 1
5100042659 BENDER WHEEL ASSY 1
* This unit includes the following parts.
3******** PITCH WHEEL ASSY 1
4******** MOD WHEEL ASSY 1
5 5100042395 ZT C-KEYTOP SD1H BLK/CLR 14
02781634 TACT SWITCH SKRGAED010 14
5100036720 LED WW-OR190TS-J 14
6 5100042395 ZT C-KEYTOP SD1H BLK/CLR 11
02781634 TACT SWITCH SKRGAED010 11
5100036720 LED WW-OR190TS-J 11
5100036498 LED WW-GIS190TS-G 11
7 5100042395 ZT C-KEYTOP SD1H BLK/CLR 11
02781634 TACT SWITCH SKRGAED010 11
5100041421 LED WW-BIS190TS-G 11
8 5100042401 ZT R-KNOB MF BLK/SLV 1
5100041025 ENCODER EC18AGA20402 1
5100036720 LED WW-OR190TS-J 6
9 5100042401 ZT R-KNOB MF BLK/SLV 1
5100041025 ENCODER EC18AGA20402 1
5100036720 LED WW-OR190TS-J 6
10 5100042401 ZT R-KNOB MF BLK/SLV 1
5100041025 ENCODER EC18AGA20402 1
5100036720 LED WW-OR190TS-J 5
11 5100041314 LCD 221-1162-2123 1
5100010674 DISPLAY CUSHION 1
5100044220 LCD SHIELD SHEET 1
40122534 DOUBLE-FACED TAPE #500 W3MM 20M 136P -
12 5100042396 ZT C-KEYTOP SX1H BLK 8
02781634 TACT SWITCH SKRGAED010 8
13 5100042395 ZT C-KEYTOP SD1H BLK/CLR 1
02781634 TACT SWITCH SKRGAED010 1
5100036498 LED WW-GIS190TS-G 1
14 5100042398 ZT R-KNOB SF BLK/SLV 3
5100037792 R-KNOB ESCUTCHEON CLR 3
5100041032 ROTARY POTENTIOMETER XV09223NPV25F972Z10K/I 3
5100036720 LED WW-OR190TS-J 3
15 5100042398 ZT R-KNOB SF BLK/SLV 4
5100037792 R-KNOB ESCUTCHEON CLR 4
5100041031 ROTARY POTENTIOMETER XV09223NPV25F972Z10KCC/I 4
5100036720 LED WW-OR190TS-J 4

5
Jul. 2015 JD-XA
fig.Panel-LS.eps
16 5100044852 J S-KNOB M BLK/RED 5
5100037657 SLIDE POTENTIOMETER C3080G1AV1B103BA00B3 5
5100037876 S-KNOB ESCUTCHEON CLR 5
5100036720 LED WW-OR190TS-J 10
17 5100044852 J S-KNOB M BLK/RED 3
5100043757 SLIDE POTENTIOMETER C3080G1AV1B103BA01BF 3
5100037876 S-KNOB ESCUTCHEON CLR 3
5100036720 LED WW-OR190TS-J 6
18 5100019998 LED DKA13SR053G(F5229831R0) 3
19 5100036720 LED WW-OR190TS-J on WHEEL BOARD 8
No. Part Code Part Name Description Q’ty
23
20
21
22
No. Part Code Part Name Description Q’ty
20 5100042394 BENDER PANEL SHEET 1
21 5100042395 ZT C-KEYTOP SD1H BLK/CLR 7
02781634 TACT SWITCH SKRGAED010 7
5100036720 LED WW-OR190TS-J 7
22 5100042398 ZT R-KNOB SF BLK/SLV 1
5100037792 R-KNOB ESCUTCHEON CLR 1
5100041032 ROTARY POTENTIOMETER XV09223NPV25F972Z10K/I 1
5100036720 LED WW-OR190TS-J 1
23 5100035565 BENDER PB-H0301-BK 1

6
Jul. 2015 JD-XA
Location of Controls (Panel R)
fig.Panel-R.eps
No. Part Code Part Name Description Q’ty
1 5100042398 ZT R-KNOB SF BLK/SLV 3
5100037792 R-KNOB ESCUTCHEON CLR 3
5100041031 ROTARY POTENTIOMETER XV09223NPV25F972Z10KCC/I 3
5100036720 LED WW-OR190TS-J 3
2 5100042398 ZT R-KNOB SF BLK/SLV 16
5100037792 R-KNOB ESCUTCHEON CLR 16
5100041032 ROTARY POTENTIOMETER XV09223NPV25F972Z10K/I 16
5100036720 LED WW-OR190TS-J 16
3 5100046586 ZT R-KNOB SF BLK/RED 1
5100037792 R-KNOB ESCUTCHEON CLR 1
5100041032 ROTARY POTENTIOMETER XV09223NPV25F972Z10K/I 1
5100036720 LED WW-OR190TS-J 1
4 5100042401 ZT R-KNOB MF BLK/SLV 1
5100041025 ENCODER EC18AGA20402 1
5100036720 LED WW-OR190TS-J 7
5 5100042397 ZT S-KEYTOP SD1H BLK/CLR 16
02781634 TACT SWITCH SKRGAED010 16
5100036746 LED WW-FCE50TC-Q1(BTF) 16
6 5100042396 ZT C-KEYTOP SX1H BLK 3
02781634 TACT SWITCH SKRGAED010 3
7 5100042395 ZT C-KEYTOP SD1H BLK/CLR 12
02781634 TACT SWITCH SKRGAED010 12
5100036720 LED WW-OR190TS-J 12
8 5100042395 ZT C-KEYTOP SD1H BLK/CLR 2
02781634 TACT SWITCH SKRGAED010 2
5100036720 LED WW-OR190TS-J 2
5100036498 LED WW-GIS190TS-G 2
9 5100019998 LED DKA13SR053G(F5229831R0) 3
10 5100044852 J S-KNOB M BLK/RED 10
5100037657 SLIDE POTENTIOMETER C3080G1AV1B103BA00B3 10
5100037876 S-KNOB ESCUTCHEON CLR 10
5100036720 LED WW-OR190TS-J 20
11 5100036720 LED WW-OR190TS-J 12
12 5100042392 PANEL SHEET C 1
13 5100042393 PANEL SHEET D 1
2
1
3 2
511 8
10 1010
12 2
7
9
412 136
6
11 11
7
6

7
Jul. 2015 JD-XA
Location of Controls (Rear)
fig.Panel-rear.eps
fig.Panel-rear.eps
1
1310 12 1113
No. Part Code Part Name Description Q’ty
1 5100044791 ROLAND BADGE 1
2 5100044793 JD BADGE 1
3 5100037825 G S-BUTTON BLK (710-12058-15-00) 1
04904123 PUSH SWITCH AC POWER SUPPLY 400-07040-01-00(PWL-2P2T-6SBP 1
4 02900312 DC JACK HEC0470-01-640 1
5 5100027106 CORD HOOK 40516-014 1
6 04459190 USB CONNECTOR A TYPE FEMALE YKF45-0033N 1
7 5100010665 USB CONNECTOR B TYPE FEMALE 2549A-04G2T(610-02001-04-00) 1
8 13429676 MIDI CONNECTOR YKF51-5048V(TWIN) 1
9 02456390 3.5MM JACK STEREO YKB21-5290 4
10 13449252 6.5MM JACK YKB21-5006 (STEREO W/SW) 4
11 5100014678 CANNON CONNECTOR CT/PJ-02-EP 1F
12 04901712 ROTARY POTENTIOMETER RK09K1110D4S 1
13 13449275 6.5MM JACK YKB21-5074 4
2
345678910

8
Jul. 2015 JD-XA
Exploded View
fig.Bunkaizu.eps
5
1
8
3
2
4
10
7
6
9
a g
f
a
b
View 1
Refer to Fig. A
View 3
View 2
View 1
11
12
5

9
Jul. 2015 JD-XA
Exploded View Parts List
View 1
No. Part Code Part Name Description Q’ty
1 5100042729 MAIN BOARD ASSY 1
2 5100042730 ANALOG JACK BOARD ASSY 1
3 5100046310 SHIELD SHEET 1
4 5100009856 KEYBOARD ASSY MSK-249 AFT W/O CABLE (990-06022-10-02) 1
5100042731 PANEL L SHEET ASSY 1
* This unit includes the following parts.
5******** AFTER BOARD 1
******** PANEL L BOARD Refer to Exploded View (Fig.A) (p. 12) 1
******** SIDE BOARD Refer to Exploded View (Fig.A) (p. 12) 1
******** WHEEL BOARD Refer to Exploded View (Fig.A) (p. 12) 1
******** ENCODER1 BOARD Refer to Exploded View (Fig.A) (p. 12) 1
******** ENCODER2 BOARD Refer to Exploded View (Fig.A) (p. 12) 1
******** ENCODER3 BOARD Refer to Exploded View (Fig.A) (p. 12) 1
6 5100037825 G S-BUTTON BLK (710-12058-15-00) 1
7 5100027106 CORD HOOK 40516-014 1
8 5100042383 BOTTOM CASE 1
9 12359137 RUBBER FOOT SJ-5012 BLK 5
10 40122490 DOUBLE-FACED TAPE #500 W5MM 20M 40P -
11 40122645 NITTO FILAMENT TAPE #3883 W19MM 50M 60P (CM) -
12 40122812 ACETATE TAPE NITTO #5 BLACK W15MM 30M -
No. Part Code Part Name Description Q’ty
a 40011312 SCREW 3X8 BINDING TAPTITE P FE BZC 4 2
b 40011334 SCREW 3X12 BINDING TAPTITE P FE BZC 2
f 5100034002 SCREW M3X12 PAN MACHINE W/SMW+PW BZC 1
g 40454856 SCREW M4X10 BINDING MACHINE NI 1

10
Jul. 2015 JD-XA
Plain View
fig.Bunkaizu-H.eps
View 2
View 3
a
aa
b
b
d
e
e
b
View 2
View 3
12
12
No. Part Code Part Name Description Q’ty
12 40122812 ACETATE TAPE NITTO #5 BLACK W15MM 30M -
a 40011312 SCREW 3X8 BINDING TAPTITE P FE BZC 27
b 40011334 SCREW 3X12 BINDING TAPTITE P FE BZC 2
No. Part Code Part Name Description Q’ty
b 40011334 SCREW 3X12 BINDING TAPTITE P FE BZC 10
d 40012345 SCREW 4X10 BINDING TAPTITE B BZC 4
e 40012490 SCREW 4X10 BINDING TAPTITE P BZC 15

11
Jul. 2015 JD-XA

12
Jul. 2015 JD-XA
Exploded View (Fig.A)
fig.Bunkaizu-A.eps
View 7
View 8
7
7
2
3
5
4
5
12
14
23
23
37
26
20
21
22
38
10
19 23
24
28
25
36
31
32
30
24
26
25
25
27
34
35
26
11
1
8
6
9
13
14
29
15
17
16 18
33
View 6
View 5
View 4
37

13
Jul. 2015 JD-XA
Exploded View (Fig.A) Parts List
No. Part Code Part Name Description Q’ty
1 5100044793 JD BADGE 1
2 5100044791 ROLAND BADGE 1
3 5100042386 REAR CORNER COVER 1
4 5100042385 FRONT CORNER COVER 1
5 5100042398 ZT R-KNOB SF BLK/SLV 27
6 5100042401 ZT R-KNOB MF BLK/SLV 4
7 5100044852 J S-KNOB M BLK/RED 18
8 5100046586 ZT R-KNOB SF BLK/RED 1
9 5100042388 PANEL SHEET A 1
10 5100042391 PANEL SHEET B 1
11 5100042392 PANEL SHEET C 1
12 5100042393 PANEL SHEET D 1
13 5100042394 BENDER PANEL SHEET 1
14 5100042384 SIDE COVER 2
15 5100042382 TOP CASE 1
5100042659 BENDER WHEEL ASSY 1
* This unit includes the following parts.
17 ******** PITCH WHEEL ASSY 1
18 ******** MOD WHEEL ASSY 1
19 5100035565 BENDER PB-H0301-BK 1
20 5100044220 LCD SHIELD SHEET 1
21 5100010674 DISPLAY CUSHION 1
22 5100041314 LCD 221-1162-2123 1
23 5100037792 R-KNOB ESCUTCHEON CLR 28
24 5100037876 S-KNOB ESCUTCHEON CLR 18
25 5100042396 ZT C-KEYTOP SX1H BLK 11
26 5100042395 ZT C-KEYTOP SD1H BLK/CLR 58
27 5100042397 ZT S-KEYTOP SD1H BLK/CLR 16
5100042731 PANEL L SHEET ASSY 1
* This unit includes the following parts.
16 ******** WHEEL BOARD 1
28 ******** PANEL L BOARD 1
29 ******** SIDE BOARD 1
30 ******** ENCODER1 BOARD 1
31 ******** ENCODER2 BOARD 1
32 ******** ENCODER3 BOARD 1
******** AFTER BOARD Refer to Exploded View (p. 8) 1
5100042732 PANEL R SHEET ASSY 1
* This unit includes the following parts.
33 ******** PANEL R BOARD 1
34 ******** ENCODER4 BOARD 1
35 5100044851 INSULATING SHEET 1
36 5100042387 CENTER HOLDER 4
37 40122812 ACETATE TAPE NITTO #5 BLACK W15MM 30M -
38 40122534 DOUBLE-FACED TAPE #500 W3MM 20M 136P -

14
Jul. 2015 JD-XA
Plain View (Fig.A) (1)
fig.Bunkaizu-A-H1.eps
View 4
View 5, 6
aa
h
View 4
View 5 View 6
No. Part Code Part Name Description Q’ty
h 5100044863 SCREW 3X8 HEX SOCKET HEAD TAPTITE B BZC 10
No. Part Code Part Name Description Q’ty
a 40011312 SCREW 3X8 BINDING TAPTITE P FE BZC 6

15
Jul. 2015 JD-XA
Plain View (Fig.A) (2)
fig.Bunkaizu-A-H2.eps
View 7
View 8
a
a
a
kkk
a
aa a a
a
a
c
k
View 7
View 8
40
37
No. Part Code Part Name Description Q’ty
40 40120967 COATING CLIP CS-3 1
a 40011312 SCREW 3X8 BINDING TAPTITE P FE BZC 8
c 5100038406 SCREW 2.6X6 BINDING TAPTITE P BZC 4
No. Part Code Part Name Description Q’ty
37 40122812 ACETATE TAPE NITTO #5 BLACK W15MM 30M -
a 40011312 SCREW 3X8 BINDING TAPTITE P FE BZC 51
k 40011323 SCREW 3X10 BINDING TAPTITE P BZC 4

16
Jul. 2015 JD-XA
Disassembly Procedure
1. Place the unit so that the Bottom Case is upward.
* Be careful not to apply undue force to knobs or others parts.
2. Remove screws d(x 4) and e(x 15) in View 3 (Plain View (p. 10)).
3. Place the unit so that the keyboard and the Top Case are upward.
* When inverting the unit, catch the both side of it and be careful not to leave the
Bottom Case and the Top Case each other.
4. Lift the Top Case from the rear side slightly.
5. Disconnect the wiring (x 1) and the flat cables (x 2).
6. Lift the rear side more, and detach the Top Case carefully so that it does
not hook the keyboard.
Important Notes on
Assembly
Arranging the Wiring
Pass the wiring which connects the Main Board to the Panel L Board
under the wiring which connects the Main Board to the keyboard.
fig.kumitate-1.eps
Screws for Bottom Case
Length of the two kinds of screws securing the Bottom Case (dand ein
View 3) are the same, but types are different. Be careful not to make a
mistake in attaching them.

17
Jul. 2015 JD-XA
Keyboard Parts List
fig.key-MSK2.eps
No. Part Code Part Name Description Q’ty
5100009856 KEYBOARD ASSY MSK-2 49KEY AFT (W/O CABLE)
1 03786378 NATURAL KEY C FOR MSK-2 4
03786389 NATURAL KEY D FOR MSK-2 4
03786390 NATURAL KEY E FOR MSK-2 4
03786401 NATURAL KEY F FOR MSK-2 4
03786412 NATURAL KEY G FOR MSK-2 4
03786423 NATURAL KEY A FOR MSK-2 4
03786434 NATURAL KEY B FOR MSK-2 4
03786445 NATURAL KEY C’ FOR MSK-2 1
2 03786456 SHARP KEY FOR MSK-2 20
3 5100009931 KEY FELT MSK-2 HOOK T2.5X695X5.5 1
4 03456967 COILED SPRING MSK-1 NATURAL KEY 29
03456978 COILED SPRING MSK-1 SHARP KEY 20
5 5100009933 KEY FELT MSK-2 BACK T3.0X677X6.0 1
6 04230834 RUBBER SWITCH 12P FOR MSK-1/MSK-2 3
04230845 RUBBER SWITCH 13P FOR MSK-1/MSK-2 1
7 03897389 PWB KEYBOARD ASSY 990-02067-10-00 1
8******** CHASSIS KEYBOARD FOR MSK-2 1
9 04348590 AFTERTOUCH SENSOR 1
10 5100009935 KEY FELT MSK-2 BOTTOM T2.5X677X10 1
a 40011189 SCREW 3X8 PAN TAPTITE-P FE ZC 28
10
2
6
7
8
4
5
1 3
9 a

18
Jul. 2015 JD-XA
Block Diagram/Wiring Diagram
fig.WIRING-BLOCK.eps@L
AFTER
BOARD
CN1
D+5V
CN3
CN5
CN2
CN6CN5CN2
CN29
CN732
AFTER SENSOR
CN731
CN11 HOLD
JK4
CTRL2
JK3
CTRL1
JK2
CN2
CN1
CN4
CN3
CN4
CN9
CN7
CN1
CN921
CN1002
CN3
CN701
ENCODER1
BOARD
CN801
ENCODER2
BOARD
CN901
ENCODER3
BOARD
BW-G0501
BNEDER WHEEL
ASSY
LCD
221-1162-2123
PB-H0301-BK
BENDER ASSY
WHEEL
BOARD
SIDE BOARD
CN801
ENCODER4
BOARD
CN1001
CN8CN6CN7
CV OUT1
JK8
GATE OUT1
JK6
CV OUT2
JK9
GATE OUT2
JK7
ESC2
IC1
ESC2
IC45
BENDER
MSK-2
49Keys
USB FUNC
JK10
Effect RAM
IC8
Work RAM
IC51
DAC
CS4398CZZR
IC4
DAC x2
CS4398CZZR
IC10/19
ADC
AK5384VFP
IC3
CODEC
WM8778SEDS
IC63
MIDI IN/OUT
JK5
USB HOST
JK11
Effect RAM
IC8
Wave ROM
IC2
Work RAM x2
IC34/35
Prog ROM
IC33
Work RAM
IC44
SSC
IC37
Keyscan CPU
MB9AF111LA
IC66
IC21
PCA9306
DCUR
LED PWM
TAP SW/LED
LCD SSU
8ch DAC
AK4358VQ
IC29
CN10 CN11 CN4
PSB-7U
PANEL-L
BOARD
BENDER
WHEEL
TAP SW/LED
CN1
LED I/F (SEQUENCER)
SWI/F (SEQUENCER)
PANEL-R
BOARD
AD
I/F
AD
I/F
MAINBOARD
CN1003
CN922
CN9
WHEEL
LED I/F
SWI/F
LED I/F
SWI/F
1
6
7
8
9
2
5
11 11
11
11
10
13
14
12
12
15
43

19
Jul. 2015 JD-XA
fig.WIRING-BLOCK.eps@R
ANALOG JACKBOARD
ANALOG DRY
OUT JK7
MAINOUT L
JK3
MAINOUT R
JK4
PHONSE OUT
JK6
CLICK OUT
JK5
MIC IN
JK2
VR1
SHIFT RESISTOR x4
TC74VHC9595FK
IC45/53/54/55
MPX x8
TC74VHC4051AFK
IC44/46/47/48/49
/50/51/52
ANALOG
SYNTH
CIRCIT x4
SHIFT RESISTOR x12
TC74VHC9595FK
IC300/301/302/304/305/306
/308/309/310/312/313/314
No. Part Code Part Name Description Q’ty
1 04569890 WIRING CA ASSY 26WAY 400MM W/2 HX2 1
2 5100045471 WIRING 1061#28 4X100-PHR-PHR-F 1
3 5100046507 FLAT CABLE SML2CD-24X360-BDX8(BL)-P1.0-S 1
4 5100046508 FLAT CABLE SML2CD-22X550-BDX8(BL)-P1.0-S 1
5 5100046512 WIRING 1061#28 14X450-PHR-PHR-F 1
6 5100022474 FLAT CABLE SML2CD-20X40-BDX8(BL)-P1.0 1
7 5100046509 FLAT CABLE SML2CD-24X40-BDX8(BL)-P1.0-S4 1
8 5100046506 FLAT CABLE SML2CD-38X40-BDX8(BL)-P1.0-S4 1
9 5100046511 WIRING 1061#28 8X40-PHR-PHR-F 1
10 5100046513 WIRING 1061#28 8X450-PHR-PHR-F 1
11 5100046504 FLAT CABLE SML2CD-14X70-BDX8(BL)-P1.0-S4 4
12 5100043932 WIRING 1061#28 4X60-PHR-PHR-F 2
13 5100046505 FLAT CABLE SML2CD-14X80-BDX8(BL)-P1.0-S4 1
14 5100046510 WIRING 1061#28 7X110-PHR-PHR-F 1
15 5100039038 WIRING 1061#28 3X80-PHR-PHR-F 1

20
Jul. 2015 JD-XA
Parts List
fig.-part1-e.eps
Note: The parts marked # are new. (initial parts) The description “Q’ty” means a necessary number of the parts per one product.
Due to one or more of the following reasons, parts with parts code ******** cannot be supplied
as service parts.
• Supply is prohibited due to copyright restrictions.
• It is carried in electronic data on the Roland web site.
• The part is made to order (at current market price).
• It can be replaced with an article on the market. (battery or etc.)
• It is a package or an accessory irrelevant to the function maintenance of the main body.
• A number of circuit boards are grouped together and supplied as a single circuit board (under a different part code).
• Reissuance is restricted.
• It is supplied as an assembled part
(under a different part code).
Safety Precautions:
The parts marked have
safety-related characteristics. Use
only listed parts for replacement.
CASING
# 5100042382 TOP CASE 1
# 5100042383 BOTTOM CASE 1
# 5100042385 FRONT CORNER COVER 1
# 5100042386 REAR CORNER COVER 1
# 5100042384 SIDE COVER 2
# 5100042388 PANEL SHEET A 1
# 5100042391 PANEL SHEET B 1
# 5100042392 PANEL SHEET C 1
# 5100042393 PANEL SHEET D 1
# 5100042394 BENDER PANEL SHEET 1
CHASSIS
# 5100042387 CENTER HOLDER 4
KNOB, BUTTON
# 5100044852 J S-KNOB M BLK/RED 18
# 5100042398 ZT R-KNOB SF BLK/SLV 27
# 5100046586 ZT R-KNOB SF BLK/RED 1
# 5100042401 ZT R-KNOB MF BLK/SLV 4
# 5100042396 ZT C-KEYTOP SX1H BLK 11
# 5100042395 ZT C-KEYTOP SD1H BLK/CLR 58
# 5100042397 ZT S-KEYTOP SD1H BLK/CLR 16
5100037825 G S-BUTTON BLK (710-12058-15-00) 1
SWITCH
02781634 TACT SWITCH SKRGAED010 85
04904123 PUSH SWITCH AC POWER SUPPLY 400-07040-01-00(PWL-2P2T-6SBP 1
JACK, EXT TERMINAL
02456390 3.5MM JACK STEREO YKB21-5290 4
13449275 6.5MM JACK YKB21-5074 4
13449252 6.5MM JACK YKB21-5006 (STEREO W/SW) 4
02900312 DC JACK HEC0470-01-640 1
13429676 MIDI CONNECTOR YKF51-5048V(TWIN) 1
5100014678 CANNON CONNECTOR CT/PJ-02-EP 1
04459190 USB CONNECTOR A TYPE FEMALE YKF45-0033N 1
5100010665 USB CONNECTOR B TYPE FEMALE 2549A-04G2T(610-02001-04-00) 1
DISPLAY UNIT
5100041314 LCD 221-1162-2123 1
KEYBOARD ASSY
5100009856 KEYBOARD ASSY MSK-249 AFT W/O CABLE (990-06022-10-02) 1
PWB ASSY
# 5100042729 MAIN BOARD ASSY 1
# 5100042730 ANALOG JACK BOARD ASSY 1
# 5100042731 PANEL L SHEET ASSY 1
* This unit includes the following parts.
#******** PANEL L BOARD 1
#******** SIDE BOARD 1
#******** WHEEL BOARD 1
#******** ENCODER1 BOARD 1
#******** ENCODER2 BOARD 1
#******** ENCODER3 BOARD 1
#******** AFTER BOARD 1