Casio CT-640

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.

Casio CT-640 replacement keys
Replacement Keys
Button assembly, 5 buttons, Casio
Button assembly, 5 buttons, Casio
$7.95 (Part #7935)
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Button assembly, light brown, Casio
Button assembly, light brown, Casio
$5.95 (Part #7936)
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Button assembly, red, Casio
Button assembly, red, Casio
$6.95 (Part #7937)
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Button, cream, Casio
Button, cream, Casio
$3.95 (Part #7941)
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Button, green, Casio
Button, green, Casio
$3.95 (Part #7934)
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Button, lavender, Casio
Button, lavender, Casio
$3.95 (Part #7943)
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Button, red, Casio
Button, red, Casio
$3.95 (Part #7940)
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Button, teal, Casio
Button, teal, Casio
$3.95 (Part #7942)
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Contact strip, 12 note, Casio
Contact strip, 12 note, Casio
$7.95 (Part #7656)
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Contact strip, 13-note, Casio
Contact strip, 13-note, Casio
$9.95 (Part #7657)
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Headphone board, Casio
Headphone board, Casio
$12.95 (Part #7938)
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IC, 74HC174 flip-flop
IC, 74HC174 flip-flop
$2.95 (Part #4267)
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Key contact boards, Casio
Key contact boards, Casio
$39.95 (Part #5611)
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Key return spring, Casio
Key return spring, Casio
$0.95 (Part #2683)
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Main board, Casio CT-640
Main board, Casio CT-640
$49.95 (Part #7939)
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Phone jack, 1/4-inch, 7-pin PCB mount
Phone jack, 1/4-inch, 7-pin PCB mount
For Phones
$7.95 (Part #3634)
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Pushbutton tact switches, pkg of 10
Pushbutton tact switches, pkg of 10
$11.95 (Part #4572X)
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Slide potentiometer, 10KBx2, 30mm
Slide potentiometer, 10KBx2, 30mm
For Volume
$19.95 (Part #3034)
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Slider mechanism, Casio
Slider mechanism, Casio
$3.95 (Part #7664)
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Style 103U key, black note
Style 103U key, black note
$9.95 (Part #K103UBL)
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Style 103U key, note A
$10.95 (Part #K103UA)
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Style 103U key, note B or E
$10.95 (Part #K103UBE)
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Style 103U key, note C or F
Style 103U key, note C or F
$10.95 (Part #K103UCF)
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Style 103U key, note D
$10.95 (Part #K103UD)
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Style 103U key, note G
Style 103U key, note G
$10.95 (Part #K103UG)
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Style 103U key, top C note
$16.95 (Part #K103UC8)
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