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ITPeter, Electronics Engineer
Category: Electronic Musical Instruments
Satisfied Customers: 17360
Experience:  Over 16 years' experience in installing and repairing electronics.
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I have a C-45 Korg that the electrolytic capacitors have been replaced

Customer Question

I have a C-45 Korg that the electrolytic capacitors have been replaced and the keyboard worked fine for about two months and now it doesn't turn on at all. After the capacitors were replaced it took the keyboard a few seconds to start playing, but there were no distortions or noise at all coming from it and it played as good as it did when I purchased it in 1993. PLEASE HELP ME if you can. A technician told me that there's power to the main board, but the micro processor is not responding and I have NO L.E.D. lighting up on the control board.
Submitted: 2 years ago.
Category: Electronic Musical Instruments
Expert:  ITPeter replied 2 years ago.
Hi there,
If the capacitors were replaced with equivalent or better ones, then they should still be ok.
Check for any loose or bad solder joints around the replaced capacitors.
If nothing is found, look for other burned or damaged components.
If you cannot visually locate the defective part of the circuit, then component level troubleshooting using schematics will be required.

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