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Discussion Starter · #1 ·
Hello! I am wondering if there is any reputable people out there that would be willing to repair two Sansui SM-1500. The boards are in excellent condition, but a few of the Mosfets have become loose and need to be resoldered. The boards are exactly the same as the PPI 2075AM amps made back in the early 90's. If you, or someone you know, is capable of helping me out, please send me a PM or reply back. Thanks so much!
 

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Putting those on is a 5 minute deal, you or anyone that can solder can do it easily.
 

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Discussion Starter · #4 ·
Well, its not that I can't solder. Actually, I am pretty decent at the skill, but I really want to send them off to someone who can go over the caps, resistors, etc. and make sure they are all in optimum condition. I am either going to use 1 of them in my install or end up selling both of them once they are back in good, working order.
 

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I didn't see a problem with the caps in mine, but it has not been used that much either. Always a good idea to check or replace those with age but it seems to matter a lot what quality caps were used. I have some mid '80s amps and I've checked them over the caps test good. I've seen other younger amps that the caps failed in many of them.

My 1500 actually got quiet and I found out the transistors were falling off. I fixed it but have not used it again, but it tested fine. Have to put a terminal strip on for the speakers yet, I hate those plugs. I was running a 10" mono and it was like my gain was down half the time, amazing it did not torch it. Checked my RCA and finally figured out I could whack the amp and the volume changed, still figured it was a bad gain pot or connection until I took the cover off.
 
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