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Vintage Yamaha Psr 32 Music Keyboard Noise

regenerative7

Nov 15, 2023
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I am getting a noise that is fairly constant. It's low and one doesn't quite notice it when using the speakers. It's not a low cycle hum, its more like a ever changing very low volume buzzing.

Would just spraying the circuit boards with cleaner fix this?
 

Bluejets

Oct 5, 2014
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Could be picking up mains buzz from improperly shielded cables/connections on the inputs.
Perhaps even leaky decoupling caps.
How old is the unit.?
 

Delta Prime

Jul 29, 2020
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Welcome to Maker Pro. :cool:I would start with the easiest task, effective & it couldn't hurt.
With no power applied!
Clean any and all mechanical switches slide switches rotating switches etc. Toggle (physically move back and forth) selector switches as you spray.
PDF document below is your musical instrument owners manual.enjoy!
photo_1700083230512.png
Pro audio musical instruments fellows use this.
Screenshot_20231115_133329.jpg

 

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  • yamaha_psr-32_keyboard_user_manual.pdf
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kellys_eye

Jun 25, 2010
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Thanks. I believe it's from the mid 1980s.
If it's as old as that then you really should check or change some capacitors in there. It's a common issue and there is no cure other than replacement parts (assuming that's the eventual issue - quite likely).
 

Bluejets

Oct 5, 2014
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Spraying cleaner on circuit boards might help with some noises, but it's not a sure fix.
why not?...can't do any harm and if it's 1980's era, well overdue for a good clean.
I'd still go with replacing the electrolytics though.
 
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