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Roland RD-300GX

Released in 2008

The RD-300GX is an 88-note 128-voice digital piano with built-in effects and an audio file player.

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 #4666)
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Bender frame, Roland
Bender frame, Roland
$16.95 (Part #5056)
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Bender lever, Roland
Bender lever, Roland
$17.95 (Part #5054)
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Bender panel, Roland
Bender panel, Roland
$21.95 (Part #10845)
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Bender PCB, pitch bend, Roland
Bender PCB, pitch bend, Roland
For pitch
$14.95 (Part #5059)
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Bender PCB, Roland
Bender PCB, Roland
For modulation
$14.95 (Part #5060)
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Bender plate, Roland
Bender plate, Roland
For pitch
$12.95 (Part #5057)
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Bender plate, Roland
Bender plate, Roland
For modulation
$8.95 (Part #5058)
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Bender spring, Roland
Bender spring, Roland
For modulation
$2.95 (Part #5055)
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Button, black, Roland/Boss
Button, black, Roland/Boss
$9.95 (Part #7019)
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Button, translucent, Roland
Button, translucent, Roland
$4.95 (Part #3521)
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Button, with LED window, Roland
Button, with LED window, Roland
For bender panel buttons
$5.95 (Part #4476)
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Button, with LED window, Roland
Button, with LED window, Roland
$5.95 (Part #1531)
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Contact strip, 12-note, Roland
Contact strip, 12-note, Roland
Uses 8
$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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Display, Roland
$179.95 (Part #1529)
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Display, Roland
Display, Roland
$87.95 (Part #12867)
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Hammer weight, #0 (white key), Roland
Hammer weight, #0 (white key), Roland
$8.95 (Part #8345)
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Hammer weight, #1 (white key), Roland
Hammer weight, #1 (white key), Roland
$8.95 (Part #7384)
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Hammer weight, #2 (white key), Roland
Hammer weight, #2 (white key), Roland
$8.95 (Part #7382)
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Hammer weight, #3 (white key), Roland
Hammer weight, #3 (white key), Roland
$8.95 (Part #7383)
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Hammer weight, #7 (black key), Roland
Hammer weight, #7 (black key), Roland
$8.95 (Part #8346)
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Hammer weight, #8 (black key), Roland
Hammer weight, #8 (black key), Roland
$8.95 (Part #8347)
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Key contact board (High), Roland
$34.95 (Part #12782)
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Key contact board (Low), Roland
$29.95 (Part #12780)
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Key contact board (Mid), Roland
$34.95 (Part #12781)
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Knob, rotary, Roland
Knob, rotary, Roland
$14.95 (Part #3643)
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MIDI jacks assembly
MIDI jacks assembly
$11.95 (Part #11729)
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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, 7-pin PCB mount
Phone jack, 1/4-inch, 7-pin PCB mount
For all jacks
$10.95 (Part #3634)
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Potentiometer, 10KB rotary
Potentiometer, 10KB rotary
For bender modulation
$8.95 (Part #2982)
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Potentiometer, 10KB rotary
Potentiometer, 10KB rotary
For Contrast
$9.95 (Part #1231)
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Potentiometer, 10KB rotary
Potentiometer, 10KB rotary
For pitch bender
$9.95 (Part #3029)
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Potentiometer, 50KB rotary with center detent
Potentiometer, 50KB rotary with center detent
For EQ/Effects
$12.95 (Part #2612)
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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, 5.5mm, 2-pin
Pushbutton tact switch, 5.5mm, 2-pin
For use under larger buttons
$8.95 (Part #3941)
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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 switch, with orange LED
Pushbutton tact switch, with orange LED
For use under translucent buttons
$10.95 (Part #2389)
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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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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
$24.95 (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/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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USB connector, Type B
USB connector, Type B
$6.95 (Part #11732)
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