Syntaur Productions
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Products for the Roland
A Series
Replacement Keys - Parts
Keyboard Service Center


Replacement Keys
These plastic keys will replace broken ones on your keyboard. There are several different types of keys used on the Roland keyboards, so you will need to make sure you order the correct style (click on the link for your keyboard below). With the exception of the Top C note on the 61-note keyboards, all keys from octave to octave are identical, and all black keys within a given style are identical. In other words, a B note in the lowest octave uses the same key as a B note in any other octave. But the highest C note is different from the other C notes (see illustration below).

If you do not know the note names, on the 61-note keyboard shown below, the white keys from the bottom (left side) up are: C, D, E, F, G, A, B, and then the sequence repeats.

Roland Synth Notes

Click below to view keys for:
A-30   A-33   A-37   A-50   A-70   A-80   A-90   A-90 EX
A-300Pro   A-500Pro   A-800Pro



Parts
We stock both new and used parts; the individual item descriptions will specify whether a part is NEW or USED. All used electronic parts are tested and guaranteed working. This listing reflects our current inventory and is updated daily, so if a part is shown with a "Buy" button, we should have it in stock.

If a part is shown as Out of Stock, then we do not have it, and in most cases, we don't know when or even if we might have it again. Your best bet is to simply check back on our site occasionally. If a part is not listed on our site, then we do not carry that part. We can no longer research or special order parts that are not listed here, and we just don't have time to answer questions about parts that we don't carry.

We want to help you get the parts you need, but please do not ask us to help diagnose problems with your equipment. We simply don't have the resources to do this, and it is just not practical to diagnose repair issues without being able to test the equipment in person.

A Series
Roland Power Inlet AC power socket, for A-70 (Part #1513)
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Roland Aftertouch board Aftertouch (key pressure) board, for A-90 (Part #6631)
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Roland A-80 Battery Battery, for A-50/70/80/90 (Part #4347)
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Roland A-30 Bender Assembly Bender assembly, for A-30 (Part #4595)
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Roland Bender Assembly Bender assembly, for A-70/90 (Part #5041)
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Roland Bender Assembly Bender assembly, for A-88/300Pro/500Pro/800Pro (Part #4666)
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Roland Bender Frame Bender frame, for A-30 (Part #3914)
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Roland Bender Frame Bender frame, for A-70/90/300Pro/500Pro/800Pro (Part #5056)
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Roland Bender Lever Bender lever, for A-30 (Part #4955)
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Roland Bender Lever Bender lever, for A-70/90/300Pro/500Pro/800Pro (Part #5054)
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Roland Bender PCB Bender PCB, for pitch, for A-300Pro/500Pro/800Pro (Part #5059)
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Roland Bender PCB Bender PCB, for modulation, for A-300Pro/500Pro/800Pro (Part #5060)
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Roland Bender Plate Bender plate, for A-30 (Part #3902)
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Roland Bender Plate Bender plate, for pitch, for A-70/90/300Pro/500Pro/800Pro (Part #5057)
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Roland Bender Plate Bender plate, for modulation, for A-70/90/300Pro/500Pro/800Pro (Part #5058)
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Roland Bender Potentiometer Bender potentiometer, for A-30 (Part #4952)
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Roland Bender Potentiometer Bender potentiometer, modulation, for A-70/90/300Pro/500Pro/800Pro (Part #2982)
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Roland Bender Potentiometer Bender potentiometer, pitch, for A-70/90/300Pro/500Pro/800Pro (Part #3029)
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Roland Bender Rubber Stop Bender rubber stop, for A-30 (Part #3553)
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Roland Bender Spring Bender spring, modulation, for A-30 (Part #4957)
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Roland Bender Spring Bender spring, modulation, for A-70/90/300Pro/500Pro/800Pro (Part #5055)
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Roland Bender Spring Bender spring, pitch, for A-70/90/300Pro/500Pro/800Pro (Part #4956)
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Roland Button Button, black, no LED window, for A-50/80 (Part #4633)
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Roland Button Button, black, with LED window, for A-50/80 (Part #4634)
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Roland Button Button, gray, for A-50/80 (Part #1150)
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Roland Button Button, with LED window, for A-70 (Part #5841)
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Roland Button Button set, small, black without LED window, for A-70 (Part #5158)
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Roland Button Assembly Button assembly, arrow cursor buttons, for A-90 (Part #1168)
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Roland Button Button set, for A-300Pro/500Pro/800Pro bender panel (Part #1391)
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Roland Contact Strip Contact strip, single-note, for A-33/70 (Part #4883)
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Roland Contact Strip Contact strip, 4-notes, for A-30/33/50/70 (Part #4157)
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Roland Contact Strip Contact strip, 8-notes, for A-30/33/37/50/70 (Part #4159)
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Roland Contact Strip Contact strip, 12-notes, for A-30/33/37/50/70 (Part #4156)
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Roland Contact Strip Contact strip, 13-notes, for A-30/70 (Part #4158)
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Roland Contact Strip Contact strip, 13-notes, for A-33/50 (Part #CS4160)
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Roland Contact Strip Contact strip, 1-note, for A-80 (Part #6520)
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Roland Contact Strip Contact strip, 3-notes, for A-80 (Part #6519)
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Roland Contact Strip Contact strip, 4-notes, for A-80 (Part #6310)
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Roland Contact Strip Contact strip, 4-notes, for A-80 (Part #5753)
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Roland Contact Strip Contact strip, 7-notes, for A-80 (Part #1302)
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Roland Contact Strip Contact strip, 8-notes, for A-80 (Part #1301)
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Roland Contact Strip Contact strip, 12-notes, for A-80 (Part #1300)
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Roland A-90 Contact Strip Contact strip, 4-note, for A-90 (Part #4926)
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Roland A-90 Contact Strip Contact strip, 8-note, for A-90 (Part #4927)
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Roland A-90 Contact Strip Contact strip, 12-note, for A-90 (Part #4928)
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Roland A-50 Display Display, for A-50 (Part #1152)
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No Longer Available Display, for A-90
This part is no longer available.
Roland Rotary Knob Encoder knob, for Value, A-300Pro/500Pro/800Pro (Part #2348)
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Roland End Cap End cap, left, for A-70 (Part #1155)
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Roland End Cap End cap, right, for A-70 (Part #1160)
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Roland A-90 Hammer Weight Hammer weight, white key, for A-90 (Part #4920)
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Roland A-90 Hammer Weight Hammer weight, black key, for A-90 (Part #4921)
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Integrated Circuit IC, 4051 multiplexer (Part #4319)
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Integrated Circuit IC, 4052 multiplexer switch (Part #7739)
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Integrated Circuit IC, 74LS138 decoder/demultiplexer (Part #3251)
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Integrated Circuit IC, 74LS32N quad gate (Part #4262)
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Integrated Circuit IC, MB8416 SRAM chip (Part #7115)
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Roland Keyboard Contact Board Key contact board, Low, for A-30 (Part #1141)
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Roland Key Contact Board Key contact board, High, for A-30/33 (Part #1142)
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Roland A-37 Contact Board Key contact board, lower 32-note, for A-37 (Part #6438)
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Roland A-37 Contact Board Key contact board, middle 24-note, for A-37 (Part #6439)
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Roland A-37 Contact Board Key contact board, upper 20-note, for A-37 (Part #6440)
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Roland A-80 Contact Board Key contact board, lower, for A-80 (Part #5721)
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Roland A-80 Contact Board Key contact board, middle, for A-80 (Part #5722)
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Roland A-80 Contact Board Key contact board, upper, for A-80 (Part #5723)
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Roland Keyboard Contact Board Key contact board, Low, for A-90 (Part #4923)
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Roland Keyboard Contact Board Key contact board, Mid, for A-90 (Part #4924)
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Roland Keyboard Contact Board Key contact board, High, for A-90 (Part #4925)
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Roland Key Cushion Key cushion, felt lowers, for A-80* (Part #1129)
*The original felt and foam cushion is no longer available; this part will work as a decent substitute.

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Roland Key Cushion Key cushion, felt uppers, for A-80 (Part #1130)
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Roland Key Cushion Key cushion, felt uppers, for A-90 (Part #1129)
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Roland Key Hammer Cushion Key cushion, felt and foam, for A-90 (Part #3542)
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Roland A-90 Key Hammer Cushion Key hammer cushion, lower, for A-90 (Part #4929)
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Roland A-90 Key Hammer Cushion Key hammer cushion, upper, for A-90 (Part #3351)
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Roland A-50 Key Return Spring Key return spring, white keys, for A-50 (Part #KEYSPS)
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Roland A-50 Key Return Spring Key return spring, black keys, for A-50 (Part #KEYSPT)
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Roland Rotary Knob Knob, rotary, for A-88/300Pro/500Pro/800Pro (Part #1500)
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Roland Phone Jack Phone jack, A-33 Expression Pedal (Part #4178)
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Roland Phone Jack Phone jack, A-30/33 Sustain (Part #4334)
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Roland Phone Jack Phone jack, A-70 Outputs (Part #4178)
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Roland Phone Jack Phone jack, A-70 Pedals (Part #4334)
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Roland Phone Jack Phone jack, A-80, all jacks (Part #4177)
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Roland Phone Jack Phone jack, A-88 Pedals (Part #4978)
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Roland Phone Jack Phone jack, A-90 Control Pedal FS1, FS2, Hold (Part #3688)
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Roland Phone Jack Phone jack, A-90 Phones, L Output, Control Pedal FC1, FC2, Total Vol (Part #3654)
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Roland Phone Jack Phone jack, A-90 R Output (Part #3410)
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Roland Phone Jack Phone jack, A-300Pro/500Pro/800Pro Pedals (Part #4978)
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Roland Potentiometer Potentiometer, for A-88 C1, C2 (Part #5174)
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Roland Potentiometer Potentiometer, A-300Pro/500Pro/800Pro R1-R9 (Part #5028)
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Roland Power Adapter Power adapter, for A-30/33/37 (Part #3628)
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Roland Power Cord Power cord, for A-80 (Part #PC)
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Roland Power Cord Power cord, non-detachable, for A-90 (Part #4465)
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Roland Power Inlet Jack Power inlet jack, for A-30/33/88 (Part #3062)
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Roland Power Supply Power supply, for A-90 (Part #1167)
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Roland Power Switch Power switch, for A-50/80/90 (Part #4289)
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Roland Power Switch Power switch, for A-70 (Part #2176)
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Roland Power Switch Cap Power switch cap, for A-70 (Part #3492)
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Tact Switch Pushbutton tact switch, for A-30/33/50/70/80 (Part #4572)
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Tact Switch Pushbutton tact switches, set of 10, for A-30/33/50/70/80 (Part #4572X)
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Tact Switch Pushbutton tact switch, for A-90, A-90 EX, all arrow buttons and Data Entry section, except Help (Part #4478)
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Tact Switch Pushbutton tact switches, set of 10, for A-90, A-90 EX, all arrow buttons and Data Entry section, except Help (Part #4478X)
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Roland A-90 Tact Switch Pushbutton tact switch, for A-90, A-90 EX, all other buttons (Part #3941)
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Roland A-50 ROM Card Holder RAM card holder, for A-50 (Part #4947)
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Roland A-37 Ribbon Cable Ribbon cable, 4.25-inch, for A-37 (Part #6441)
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Roland Rubber Foot Rubber foot, for A-70 (Part #4272)
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Roland Rubber Foot Rubber foot, for A-80/90 (Part #4295)
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Roland Slider Potentiometer Slide potentiometer, for A-30/33/37 (Part #4868)
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Roland Slider Potentiometer Slide potentiometer, for A-50/80 (Part #4682)
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Roland A-70 Slider Potentiometer Slide potentiometer, for A-70/90 Int Volume (Part #3275)
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Roland A-70 Slider Potentiometer Slide potentiometer, for A-70/90 Total Volume, Palette, Data Entry (Part #3503)
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Roland Slide Potentiometer Slide potentiometer, for A-300Pro/500Pro/800Pro (Part #2316)
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Roland Slider Knob Slider knob, for A-30 (Part #2144)
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Roland Slider Knob Slider knob, for A-33/37 (Part #3699)
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Roland Slider Knob Slider knob, for A-50/80 (Part #1135)
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Roland Slider Knob Slider knob, for A-70/90 (Part #1163)
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Roland Slider Knob Slider knob, for A-300/500/800 Pro (Part #6338)
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Roland Transformer Transformer, for A90 (Part #3282)
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Transistor Transistor, 2SA1015 (Part #3294)
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