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Roland RD-300SX

Released in 2005

The RD-300SX is an 88-note digital piano with a hammer-action keyboard and 128-voice polyphony.

Synth
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We stock both NEW and USED parts; all used electronic parts are tested and guaranteed working.

This listing reflects our current inventory and is updated in real time. If a part is shown as Out of Stock, we typically don't know when or if we might have it again - but click on the part for more info, and then you will be able to sign up for an alert when we do have it available again. By including out of stock parts in our listings, we hope to offer customers a more complete and useful resource.

We cannot diagnose repair issues by phone or email. For technical questions, we suggest posting on our Forums, where our techs - as well as other users - can offer help.

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Bender assembly, Roland
Bender assembly, Roland
$49.95 (Part #3668)
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Bender frame, Roland
Bender frame, Roland
$14.95 (Part #3914)
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Bender lever, Roland
Bender lever, Roland
$21.95 (Part #4955)
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Bender panel, Roland
Bender panel, Roland
$24.95 (Part #7027)
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Bender plate, Roland
Bender plate, Roland
$12.95 (Part #3902)
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Bender rubber stop
Bender rubber stop
$1.95 (Part #3553)
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Button, black, Roland/Boss
Button, black, Roland/Boss
$9.95 (Part #7019)
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Button, gray, Roland
Button, gray, Roland
$5.95 (Part #7020)
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Button, with LED window, Roland
Button, with LED window, Roland
$5.95 (Part #1531)
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Cheek block, Roland
Cheek block, Roland
$12.95 (Part #7017)
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Contact strip, 12-note, Roland
Contact strip, 12-note, Roland
$12.95 (Part #7385)
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Contact strip, 4-note, Roland
Contact strip, 4-note, Roland
$10.95 (Part #7395)
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Contact strip, 8-note, Roland
Contact strip, 8-note, Roland
$11.95 (Part #7394)
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Cord lock, Roland
Cord lock, Roland
$7.95 (Part #6062)
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End cap, left, Roland
End cap, left, Roland
$29.95 (Part #7391)
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End cap, right, Roland
End cap, right, Roland
$29.95 (Part #7392)
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Hammer weight, #1 (white key), Roland
Hammer weight, #1 (white key), Roland
For white keys up through F2
$8.95 (Part #7384)
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Hammer weight, #2 (white key), Roland
Hammer weight, #2 (white key), Roland
For white keys G2 through E4
$8.95 (Part #7382)
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Hammer weight, #3 (white key), Roland
Hammer weight, #3 (white key), Roland
For white keys F4 through D6
$8.95 (Part #7383)
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Hammer weight, #4 (white key), Roland
Hammer weight, #4 (white key), Roland
For white keys D7 up
$8.95 (Part #7381)
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Hammer weight, #5 (black key), Roland
Hammer weight, #5 (black key), Roland
For black keys up through D#4
$8.95 (Part #7380)
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Hammer weight, #6 (black key), Roland
Hammer weight, #6 (black key), Roland
For black keys F#4 up
$8.95 (Part #7379)
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IC, 74HC138 3 to 8 multiplexer
IC, 74HC138 3 to 8 multiplexer
$1.95 (Part #8125)
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IC, TC40H157P multiplexer
IC, TC40H157P multiplexer
$29.95 (Part #10003)
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Jack board, Roland
Jack board, Roland
$59.95 (Part #7386)
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Key contact board, 24-note, Low, Roland
Key contact board, 24-note, Low, Roland
$39.95 (Part #7387)
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Key contact board, 32-note, High, Roland
Key contact board, 32-note, High, Roland
$39.95 (Part #7388)
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Key contact board, 32-note, Mid, Roland
Key contact board, 32-note, Mid, Roland
$39.95 (Part #7389)
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Knob, Roland
Knob, Roland
$12.95 (Part #3979)
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Main board, Roland RD-300SX
Main board, Roland RD-300SX
$179.95 (Part #7393)
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Panel board, Roland
Panel board, Roland
$69.95 (Part #7390)
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Pedal, damper-style
Pedal, damper-style
$34.95 (Part #VFP115)
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Pedal, Expression/Control
Pedal, Expression/Control
$52.95 (Part #VP26U)
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Phone jack, 1/4-inch, 4-pin PCB mount
Phone jack, 1/4-inch, 4-pin PCB mount
For Phones
$10.95 (Part #3654)
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Phone jack, 1/4-inch, 4-pin PCB mount
Phone jack, 1/4-inch, 4-pin PCB mount
For Outputs
$12.95 (Part #3688)
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Phone jack, 1/4-inch, 7-pin PCB mount
Phone jack, 1/4-inch, 7-pin PCB mount
For Pedals
$10.95 (Part #3634)
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Potentiometer, 100KB rotary with center tap
Potentiometer, 100KB rotary with center tap
For bender
$23.95 (Part #4952)
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Potentiometer, 50KB rotary with center detent
Potentiometer, 50KB rotary with center detent
For EQ/Effects
$8.95 (Part #3904)
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Power adapter, 9VDC, 2000mA
Power adapter, 9VDC, 2000mA
$42.95 (Part #2512)
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Power inlet jack
Power inlet jack
$6.95 (Part #3062)
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Power switch, pushbutton
Power switch, pushbutton
$14.95 (Part #3543)
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Pushbutton tact switch, 5mm, 2-pin
Pushbutton tact switch, 5mm, 2-pin
$1.95 (Part #4478)
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Pushbutton tact switches, 5mm, pkg of 10
Pushbutton tact switches, 5mm, pkg of 10
$11.95 (Part #4478X)
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Ribbon cable, 16-wire, 400mm FFC
Main board to keybed
$17.95 (Part #12631)
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Ribbon cable, 22-wire, 500mm FFC
Main board to keybed
$17.95 (Part #12632)
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Rubber foot, 3/8-inch tall
Rubber foot, 3/8-inch tall
$2.95 (Part #4295)
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Slide potentiometer, 10KB, 30mm
Slide potentiometer, 10KB, 30mm
For Zone Level
$17.95 (Part #4682)
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Slide potentiometer, 10KBx2, 30mm
Slide potentiometer, 10KBx2, 30mm
For Volume
$19.95 (Part #4531)
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Slider knob, Roland/Boss
Slider knob, Roland/Boss
$8.95 (Part #4888)
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Spring for bender
Spring for bender
For modulation
$3.95 (Part #4957)
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Spring for bender/joystick
Spring for bender/joystick
$1.95 (Part #4956)
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Style 79U key, black note
Style 79U key, black note
$9.95 (Part #K79UBL)
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Style 79U key, bottom A note
Style 79U key, bottom A note
$16.95 (Part #K79UAB)
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Style 79U key, note A
Style 79U key, note A
$11.95 (Part #K79UA)
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Style 79U key, note B
Style 79U key, note B
$11.95 (Part #K79UB)
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Style 79U key, note C
Style 79U key, note C
$11.95 (Part #K79UC)
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Style 79U key, note D
Style 79U key, note D
$11.95 (Part #K79UD)
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Style 79U key, note E
Style 79U key, note E
$11.95 (Part #K79UE)
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Style 79U key, note F
Style 79U key, note F
$11.95 (Part #K79UF)
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Style 79U key, note G
Style 79U key, note G
$11.95 (Part #K79UG)
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Style 79U key, top C note
Style 79U key, top C note
$16.95 (Part #K79UC8)
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Switch cap, black
Switch cap, black
For Power
$5.95 (Part #4665)
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Transistor, 2SC1815
Transistor, 2SC1815
$2.95 (Part #1943)
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USB connector, Type B
USB connector, Type B
$6.95 (Part #3487)
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Volume board, Roland
Volume board, Roland
$29.95 (Part #7378)
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