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post #1 of 2 Old 05-14-2016, 04:46 PM - Thread Starter
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Question Help fixing vintage receiver

Hey everyone,

I was hoping someone could help me. Back in October I had my Sansui R-50 on all day playing loud music. At the end of the night, it ended up blowing the fuse. After replacing it, the next day I plugged it in to test it out. I plugged it in and I saw a little smoke leave a component, but I wasn't looking closely enough too see exactly which one it was. After that, only the 'left' components of system A and B work, and whenever a speaker is plugged into the 'right' components, it just sounds like loud interference (and it does get louder/quieter with volume control), and the speakers get way too much power in the 'right' side (ended up frying one). So I did some poking around to find that a .33 ohm resistor has 955 M ohm resistance now. So I ordered a replacement and swapped them out. Wishing for the best, I plug it in, and blew another fuse.

It appears to me that the fried resistor was blocking current from going to a fried component, but I am not sure which component it could be.

Has anyone ever dealt with this issue or know where else I should look?

Any help is greatly appreciated!
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post #2 of 2 Old 05-14-2016, 06:01 PM
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For component level repairs to vintage equipment, AudioKarma.org is a great resource.
Check the 'Exclusively Sansui' forum http://audiokarma.org/forums/index.p...ely-sansui.39/
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diy , receiver , Sansui , sansui r-50 , vintage receiver

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