Yamaha CS40M
Released in 1979The CS40M is rather like two CS20M's combined - it is a 2-voice polyphonic (duophonic) synthesizer, with two VCOs per voice, and with a filter switchable between low-pass, band-pass, and high-pass. This 44-note analog synthesizer has 20 locations for storing user programs.

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.


$3.95 (Part #3022)

$3.95 (Part #5166)

$2.95 (Part #3391)

$2.95 (Part #3322)

$2.95 (Part #3302)

$2.95 (Part #1945)

$3.95 (Part #3303)

$2.95 (Part #2382)

$2.95 (Part #1775)

$2.95 (Part #3994)

$2.95 (Part #3994)

$2.95 (Part #2716)

$2.95 (Part #10659)

$2.95 (Part #3387)

$14.95 (Part #5083)

$9.95 (Part #8901)

$79.95 (Part #8340)

$42.95 (Part #7259)

$1.95 (Part #KYSP11)

$1.95 (Part #KYSP10)

For Pitch knobs, Brilliance, Initial Level, Output knobs
$7.95 (Part #9844)

For LFO Mod Depth, all Mixer and Output pots, VCA 1 and 2
$11.95 (Part #6864)

For VCO Pitch, PWM Depth; all LFO, Ring Mod, VCF pots; VCA Depth, Initial Level
$9.95 (Part #3356)

$7.95 (Part #PC)

For EG-VCF Sustain, EG-VCA Sustain
$17.95 (Part #4482)

$12.95 (Part #2461)

$16.95 (Part #2462)

$12.95 (Part #K16UBL)

$12.95 (Part #K16UA)

$12.95 (Part #K16UBE)

$12.95 (Part #K16UCF)

$12.95 (Part #K16UD)

$12.95 (Part #K16UG)

$19.95 (Part #K16UC8)

$1.95 (Part #3294)

$7.95 (Part #8976)

$3.95 (Part #2577)

$2.95 (Part #1943)

$6.95 (Part #8900)

$4.95 (Part #7371)

$4.95 (Part #7374)