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Sansui BA-2000 - DIY or take to a shop?

poul_nielsen

New Member
Hey everyone,

Having a bit of a dilemma with a BA 2000 I just picked up. Got it pretty cheap and accepted that if it was really beat I'd bite the bullet and have it professionally repaired/restored. I don't have any of the gear in the stickied thread, and while I'd like to get into repair I'm not dying to take on the cost at this moment.

Fortunately, the amp doesn't seem so bad off, all things considered. Upon visual inspection (can provide pictures if that'll help) the internals seem to be in good shape, aside from dust and shrunk/ripped plastic on the big capacitors (capacitors themselves seem fine otherwise). Heatsinks look good, albeit one of them is a bit discolored so I'm not sure if the bias will need to be adjusted. Boards all look good, don't see any glaring problems.

The only glaring issue so far is a lack of output - it powers on, protect light goes green after a few seconds, but afterwards there's no sound and no bounce in the meters once the protect goes off. I've done some research and the fix is as simple as replacing the fuse resistors throughout the amp.

So, maybe I could get by buying an iron and replacing them myself and that's all I'd need to do. But, lacking the tools needed to determine any other underlying or unseen problems, I feel like I'd run the risk of damaging it. Keep in mind I really have no clue about the history of the unit; previous owner(s), if it had been sitting in a storage unit for X years, etc.

All that said, I'm a bit torn between options. Am I "safe" to make the repair lacking all of the additional gear? I'd love for it to be that simple but am worried about taking my chances. And as I mentioned, I'd really like to get into the repair and restoration hobby, but money aside, I don't know if this would even be a smart place to start.

Happy to get any feedback y'all have. Hopefully just making a mountain out of a molehill, but I really wanna do right by this amp and certainly don't want it blowing up on my watch. Thanks in advance!
 
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Sounds like it has been getting seriously hot, so will need a lot more than 'replacing the fuse resistors'. It is possible to repair one of those with a minimum of test gear, but this would be an experienced tech doing this not a beginner, as correctly mentioned above. And even he (the tech) would be limited as to the testing he could do to make sure it meets specification after repair.

As for taking it to a shop - this needs to be a proper Vintage specialist.
 
Hey, thanks for the advice. Gonna do the sensible thing and will be bringing it to somebody who's been repairing HiFi equipment since the 70's
 
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