Yamaha FS-500 Support Question
Yamaha FS-500 Support Question
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Question posted by yoavy on November 29th, 2021
Hum From Speakers
Hello, I have Yamaha FS500 organ with hum issue. The hum comes mainly from the subwoofer speaker but sometimes from the right speakers. It is there when nothing is played. I plugged it to different outlets but no change. I tried different grounding but no difference. I was told the hum can come from old electrolyte capacitors at the power supply board. I am trying to find out if I can get a replacement power supply board or I need to replace each individual capacitor. Can you please let me know if/where can I find a replacement power supply board?
Current Answers
Answer #1: Posted by hzplj9 on November 29th, 2021 2:35 PM
hzplj9
Member since:
June 25th, 2012 Points: 4,874,710
Member since:
June 25th, 2012 Points: 4,874,710
An internet search may give you a second hand power supply. I have not been able to source one at the moment. However I have found this youtube video on repairing a power supply in a similar organ.
www.youtube.com/watch?v=MtQPVlFwZ9o
If you can solder then it is easy to replace all the caps in the power supply. Choose 105 degree ones from a reputable source else you could be doing it again soon.
Hope that gives you enough info to solve your problem.
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