Yamaha PSR-31
Released in 1986The PSR-31 is a 61-note consumer keyboard with built-in speakers.

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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.

Replacement Keys

Button contact
$0.45 (Part #6878)
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$0.45 (Part #6878)

Button, blue, Yamaha
$1.95 (Part #8445)
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$1.95 (Part #8445)

Button, green, Yamaha
$2.95 (Part #8444)
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$2.95 (Part #8444)

Button, orange, Yamaha
$2.95 (Part #7996)
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$2.95 (Part #7996)

Button, tan, Yamaha
$2.95 (Part #7995)
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$2.95 (Part #7995)

Headphone jack assembly, Yamaha
$16.95 (Part #8446)
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$16.95 (Part #8446)

IC, 4558 dual op amp
$2.95 (Part #3387)
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$2.95 (Part #3387)

IC, TC40H138 decoder/demultiplexer
$16.95 (Part #2661)
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$16.95 (Part #2661)

Key contact board, 25-note
$24.95 (Part #6669)
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$24.95 (Part #6669)

Key contact board, 37-note, Yamaha
$36.95 (Part #6670)
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$36.95 (Part #6670)

Key return spring, Yamaha
$0.75 (Part #KEYSPX)
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$0.75 (Part #KEYSPX)

Key return springs, package of 10
$4.95 (Part #KEYSPXX)
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$4.95 (Part #KEYSPXX)

Panel board, Yamaha
$22.95 (Part #8447)
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$22.95 (Part #8447)

Phone jack, 1/4-inch, 7-pin PCB mount
For Phones/Output
$10.95 (Part #3634)
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For Phones/Output
$10.95 (Part #3634)

Slider knob, Yamaha
$4.95 (Part #6872)
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$4.95 (Part #6872)

Slider mechanism, Yamaha
$3.95 (Part #6894)
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$3.95 (Part #6894)

Style 24U key, black note
$9.95 (Part #K24UBL)
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$9.95 (Part #K24UBL)

Style 24U key, note A
$10.95 (Part #K24UA)
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$10.95 (Part #K24UA)

Style 24U key, note B or E
$10.95 (Part #K24UBE)
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$10.95 (Part #K24UBE)

Style 24U key, note C or F
$10.95 (Part #K24UCF)
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$10.95 (Part #K24UCF)

Style 24U key, note D
$10.95 (Part #K24UD)
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$10.95 (Part #K24UD)

Style 24U key, note G
$10.95 (Part #K24UG)
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$10.95 (Part #K24UG)

Style 24U key, top C note
$16.95 (Part #K24UC8)
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$16.95 (Part #K24UC8)

Transistor, 2SC1815
$2.95 (Part #1943)
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$2.95 (Part #1943)

Transistor, 2SD880
$2.95 (Part #2955)
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$2.95 (Part #2955)