Roland RD-250S

Released in 1986

The RD-250S is a 76-note digital piano with fully weighted keys, and with chorus and tremolo effects.

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.

Roland RD-250S replacement keys
Replacement Keys
AC power socket, 2-blade
AC power socket, 2-blade
$14.95 (Part #4415)
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Button, gray, with LED window, Roland
Button, gray, with LED window, Roland
$6.95 (Part #1290)
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Button, with LED window, Roland
Button, with LED window, Roland
$5.95 (Part #1289)
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Cheek block, Roland
Cheek block, Roland
For right or left
$8.95 (Part #9318)
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Contact strip, 12-note
Contact strip, 12-note
$16.95 (Part #1300)
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Contact strip, 4-note
Contact strip, 4-note
$11.95 (Part #6310)
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Contact strip, 7-note
Contact strip, 7-note
$16.95 (Part #1302)
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Contact strip, 8-note
Contact strip, 8-note
$16.95 (Part #1301)
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CPU-A board, Roland RD-250S
CPU-A board, Roland RD-250S
$59.95 (Part #8643)
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CPU-B board, Roland RD
CPU-B board, Roland RD
$62.95 (Part #8641)
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Effects/jack board, Roland RD
Effects/jack board, Roland RD
$69.95 (Part #8637)
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Encoder, rotary
For Tune
$16.95 (Part #1125)
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End cap, left, Roland
End cap, left, Roland
$27.95 (Part #8639)
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End cap, right, Roland
End cap, right, Roland
$27.95 (Part #8635)
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Fuse board, Roland
Fuse board, Roland
$9.95 (Part #8634)
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IC, 4066 quad bilateral switch
IC, 4066 quad bilateral switch
$2.95 (Part #3723)
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IC, 4584 hex Schmitt trigger
IC, 4584 hex Schmitt trigger
$3.95 (Part #8981)
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IC, 74LS05 hex inverter
IC, 74LS05 hex inverter
$2.95 (Part #8114)
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IC, C4570HA dual op amp, SIP
IC, C4570HA dual op amp, SIP
$3.95 (Part #6624)
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IC, HM6116ASP-12 or MB8416A SRAM chip
IC, HM6116ASP-12 or MB8416A SRAM chip
$7.95 (Part #7115)
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IC, LM311 comparator
IC, LM311 comparator
$2.95 (Part #2560)
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IC, MN3007 BBD chip
IC, MN3007 BBD chip
$21.95 (Part #2587)
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IC, MN3101 BBD clock driver
IC, MN3101 BBD clock driver
$7.95 (Part #5084)
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IC, PCM54HP D/A converter
IC, PCM54HP D/A converter
$11.95 (Part #5707)
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IC, TC40H000P quad NAND gate
IC, TC40H000P quad NAND gate
$4.95 (Part #3398)
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IC, TC40H032 quad 2-input OR gate
IC, TC40H032 quad 2-input OR gate
$2.95 (Part #2659)
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IC, TC40H138 decoder/demultiplexer
IC, TC40H138 decoder/demultiplexer
$14.95 (Part #2661)
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IC, TC40H157P multiplexer
IC, TC40H157P multiplexer
$29.95 (Part #10003)
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Key contact board, 24-note (Low), Roland
Key contact board, 24-note (Low), Roland
$29.95 (Part #8645)
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Key contact board, 24-note (Mid), Roland
Key contact board, 24-note (Mid), Roland
$26.95 (Part #9411)
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Key contact board, 28-note (High), Roland
Key contact board, 28-note (High), Roland
$34.95 (Part #8644)
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Key guide, black note
Key guide, black note
$0.45 (Part #5042)
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Key guide, white key
Key guide, white key
$0.45 (Part #5043)
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Key lock, black key, Roland
Key lock, black key, Roland
$2.95 (Part #5757)
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Key lock, white key, Roland
Key lock, white key, Roland
$2.95 (Part #5758)
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Key return spring, Roland
Key return spring, Roland
$1.95 (Part #5754)
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Keybed cushion, 76-note
Keybed cushion, 76-note
For lower felts (keys rest against this cushion)
$9.95 (Part #9044)
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Knob, rotary, Roland
Knob, rotary, Roland
For Tune
$6.95 (Part #2188)
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MIDI jack, female
MIDI jack, female
$8.95 (Part #5325)
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Panel board, Roland RD
Panel board, Roland RD
$59.95 (Part #8636)
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Phone jack, 1/4-inch, 3-pin PCB mount
Phone jack, 1/4-inch, 3-pin PCB mount
For Phones
$7.95 (Part #4178)
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Phone jack, 1/4-inch, 3-pin PCB mount
Phone jack, 1/4-inch, 3-pin PCB mount
For Pedals
$7.95 (Part #4334)
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Phone jack, 1/4-inch, 7-pin PCB mount
Phone jack, 1/4-inch, 7-pin PCB mount
For Outputs
$7.95 (Part #3634)
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Power cord, 2-blade
Power cord, 2-blade
$13.95 (Part #PCJ)
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Power supply board, Roland RD
Power supply board, Roland RD
$44.95 (Part #8638)
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Power switch, rocker type
Power switch, rocker type
$5.95 (Part #4289)
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Pushbutton tact switch, 5mm, 4-pin with ground
Pushbutton tact switch, 5mm, 4-pin with ground
$1.95 (Part #1175)
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Rubber foot, 3/8-inch tall
Rubber foot, 3/8-inch tall
$1.45 (Part #4295)
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Slide potentiometer, 100KB, 30mm
Slide potentiometer, 100KB, 30mm
For Tremolo Rate
$24.95 (Part #6383)
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Slide potentiometer, 10KA, 30mm
Slide potentiometer, 10KA, 30mm
For Tremolo Depth
$24.95 (Part #3658)
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Slide potentiometer, 10KAx2, 30mm
Slide potentiometer, 10KAx2, 30mm
For Internal Volume
$24.95 (Part #3811)
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Slide potentiometer, 10KB, 30mm
Slide potentiometer, 10KB, 30mm
For Lower, Upper External Volume
$26.95 (Part #1426)
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Slide potentiometer, 10KBx2, 30mm
Slide potentiometer, 10KBx2, 30mm
For Brilliance
$24.95 (Part #1340)
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Slide switch, 3-position
Slide switch, 3-position
For Level
$16.95 (Part #2592)
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Slider knob, Roland
Slider knob, Roland
$6.95 (Part #1135)
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Style 20W key, black note
Style 20W key, black note
$12.95 (Part #K20WBL)
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Style 20W key, bottom E note
Style 20W key, bottom E note
$19.95 (Part #K20WEB)
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Style 20W key, note A
$14.95 (Part #K20WA)
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Style 20W key, note B
$14.95 (Part #K20WB)
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Style 20W key, note C
$14.95 (Part #K20WC)
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Style 20W key, note D
$14.95 (Part #K20WD)
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Style 20W key, note E
$14.95 (Part #K20WE)
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Style 20W key, note F
$14.95 (Part #K20WF)
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Style 20W key, note G
$14.95 (Part #K20WG)
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Style 20W key, top G note
$19.95 (Part #K20WGT)
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Transformer, Roland
Transformer, Roland
$39.95 (Part #8640)
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Transistor, 2SB507 or NTE153 or 2SB1015
Transistor, 2SB507 or NTE153 or 2SB1015
$3.95 (Part #2577)
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Transistor, 2SC1740
Transistor, 2SC1740
$1.95 (Part #7502)
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Voltage regulator, 7805
Voltage regulator, 7805
$2.95 (Part #2256)
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