Yamaha CS15

Released in 1978

The CS15 is a solidly-built two-VCO monosynth with a 37-note keyboard. It has two 2-pole resonant filters, each switchable between LP, BP, or HP.

Yamaha CS15
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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 CS15 replacement keys
Replacement Keys
End cap, left, Yamaha
End cap, left, Yamaha
$31.95 (Part #9914)
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IC, 4069 hex inverter
IC, 4069 hex inverter
$2.95 (Part #3994)
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IC, 4558 dual op amp
IC, 4558 dual op amp
$2.95 (Part #3387)
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IC, Yamaha IG00153 VCO
IC, Yamaha IG00153 VCO
$79.95 (Part #8340)
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Key return spring, Yamaha
Key return spring, Yamaha
$0.75 (Part #KEYSPX)
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Key return springs, package of 10
Key return springs, package of 10
$4.95 (Part #KEYSPXX)
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Knob, Yamaha
Knob, Yamaha
$7.95 (Part #5093)
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Potentiometer, 10KB rotary
Potentiometer, 10KB rotary
For LFO Speed, Glide VCO 1/2 Depth, Tune, VCO 2 Detune, VCO 1/2 LFO Mod, PW, PWM, all Mixer, all VCF, all VCA
$9.95 (Part #3356)
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Potentiometer, 10KB rotary
Potentiometer, 10KB rotary
For Pitch Bend 'slider'
$9.95 (Part #3649)
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Slide potentiometer, 10KB, 30mm
Slide potentiometer, 10KB, 30mm
For Brilliance, Sustain
$15.95 (Part #4482)
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Slide potentiometer, 2MA
Slide potentiometer, 2MA
For Portamento, Attack, Decay, Release
$17.95 (Part #3333)
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Slide switch, 2-position
Slide switch, 2-position
$12.95 (Part #2461)
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Slide switch, 3-position
Slide switch, 3-position
$16.95 (Part #2462)
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Slider knob
Slider knob
for Pitch Bend/Portamento/Brilliance (This part is different from the original slider cap, but is a workable replacement)
$4.95 (Part #3551)
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Slider knob, Yamaha
Slider knob, Yamaha
For EG1, EG2
$6.95 (Part #2749)
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Style 24U key, black note
$9.95 (Part #K24UBL)
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Style 24U key, note A
$10.95 (Part #K24UA)
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Style 24U key, note B or E
$10.95 (Part #K24UBE)
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Style 24U key, note C or F
$10.95 (Part #K24UCF)
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Style 24U key, note D
$10.95 (Part #K24UD)
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Style 24U key, note G
$10.95 (Part #K24UG)
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Style 24U key, top C note
$16.95 (Part #K24UC8)
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Transistor, 2SA1015
Transistor, 2SA1015
$1.95 (Part #3294)
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Transistor, 2SC1815
Transistor, 2SC1815
$2.95 (Part #1943)
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