Yamaha SY55

Released in 1992

The SY55 is a five-octave wavetable synth with a sequencer. The keyboard responds to velocity and aftertouch.

Yamaha SY55
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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.

Yamaha SY55 replacement keys
Replacement Keys
Aftertouch strip, 61-note
Aftertouch strip, 61-note
$39.95 (Part #6660)
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Battery, 3V lithium
Battery, 3V lithium
$7.95 (Part #4311)
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Button assembly, 0-Enter, Yamaha
Button assembly, 0-Enter, Yamaha
$6.95 (Part #6308)
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Button assembly, 1-3, Yamaha
Button assembly, 1-3, Yamaha
$6.95 (Part #6305)
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Button assembly, 4-6, Yamaha
Button assembly, 4-6, Yamaha
$6.95 (Part #6306)
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Button assembly, 7-9, Yamaha
Button assembly, 7-9, Yamaha
$6.95 (Part #6307)
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Button, Yamaha
Button, Yamaha
$1.95 (Part #5595)
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Contact strip, 61-note
Contact strip, 61-note
$42.95 (Part #3112)
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Display assembly, Yamaha
Display assembly, Yamaha
$59.95 (Part #6304)
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End cap, left, Yamaha
End cap, left, Yamaha
$29.95 (Part #6303)
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End cap, right, Yamaha
End cap, right, Yamaha
$29.95 (Part #6302)
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Key contact board, 61-note
Key contact board, 61-note
$54.95 (Part #3097)
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Key return flat spring
Key return flat spring
$0.95 (Part #KEYSPK)
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Keybed cushion, 61-note
Keybed cushion, 61-note
$10.95 (Part #4795)
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Main board, Yamaha SY55
$89.95 (Part #1835)
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Phone jack, 1/4-inch, 3-pin PCB mount
Phone jack, 1/4-inch, 3-pin PCB mount
For Output, Sustain
$7.95 (Part #4334)
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Phone jack, 1/4-inch, 4-pin PCB mount
Phone jack, 1/4-inch, 4-pin PCB mount
For Phones, Foot Volume
$7.95 (Part #4177)
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Phone jack, mini
Phone jack, mini
For Breath Controller
$5.95 (Part #1840)
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Pitch bend/mod wheel assembly, Yamaha
Pitch bend/mod wheel assembly, Yamaha
$26.95 (Part #6309)
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Pitch bend/mod wheel rubber, Yamaha
Pitch bend/mod wheel rubber, Yamaha
$2.95 (Part #7122)
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Pitch bend/mod wheel, Yamaha
Pitch bend/mod wheel, Yamaha
$9.95 (Part #4963)
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Potentiometer, 10KA rotary
Potentiometer, 10KA rotary
For Click Volume
$6.95 (Part #2646)
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Potentiometer, 10KB rotary
Potentiometer, 10KB rotary
For mod wheel
$9.95 (Part #3479)
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Potentiometer, 10KB rotary with center tap
Potentiometer, 10KB rotary with center tap
For pitch bend wheel
$9.95 (Part #3713)
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Power switch cap, black, round
Power switch cap, black, round
$4.95 (Part #3102)
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Power switch, pushbutton
Power switch, pushbutton
$12.95 (Part #3791)
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Pushbutton tact switch, 4.3mm, 4-pin
Pushbutton tact switch, 4.3mm, 4-pin
$1.95 (Part #3130)
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Pushbutton tact switches, 4.3mm, pkg of 10
Pushbutton tact switches, 4.3mm, pkg of 10
$11.95 (Part #3130X)
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Rubber foot, 5/16-inch tall, with lock pin
Rubber foot, 5/16-inch tall, with lock pin
$2.95 (Part #4980)
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Slide potentiometer, 10KAx2, 30mm
Slide potentiometer, 10KAx2, 30mm
For Volume
$16.95 (Part #3337)
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Slide potentiometer, 10KB, 30mm
Slide potentiometer, 10KB, 30mm
For Data
$24.95 (Part #3426)
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Slider knob, white indicator, Yamaha
Slider knob, white indicator, Yamaha
$8.95 (Part #4950)
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Spring for pitch bend wheel
Spring for pitch bend wheel
$3.95 (Part #4028)
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Stop ring, pitch wheel spring
Stop ring, pitch wheel spring
$0.95 (Part #7697)
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Style 36T key, black note
Style 36T key, black note
$9.95 (Part #K36TBL)
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Style 36U key, note A
Style 36U key, note A
$10.95 (Part #K36UA)
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Style 36U key, note B or E
Style 36U key, note B or E
$10.95 (Part #K36UBE)
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Style 36U key, note C or F
$10.95 (Part #K36UCF)
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Style 36U key, note D
$10.95 (Part #K36UD)
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Style 36U key, note G
Style 36U key, note G
$10.95 (Part #K36UG)
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Style 36U key, top C note
$16.95 (Part #K36UC8)
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Transistor, 2SC1740
Transistor, 2SC1740
$1.95 (Part #7502)
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Transistor, 2SC2878
Transistor, 2SC2878
$1.95 (Part #8149)
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