2. amps-preamps
  3. 165244-130894

Shorting Amplifier Output

I moved my speaker and the speaker wire dislodged from the speaker lug causing it to short to the opposing side of the speaker lug. I have a Unison Research Unico Secondo. I noticed this when I started smelling a burning odor. Is it possible to repair, and is it worth it to repair? Are their any service places local to the Los Angeles area?
timyamasaki

Showing 1 response by georgehifi

georgehifi's avatar
georgehifi
10,312 posts
 


At a guess you’ve blown some output transistors, drivers and emitter resistors, $100 approx parts.
Looking at the dismantling layout, they didn't make it easy, the whole board has to come out. A good 4hrs labour, $400+ approx, in Australia some charge $150aud pr hr

https://www.hifisentralen.no/forumet/attachments/d652efdbaf5de7acb016cfb15c7350e9-jpg.619705/

https://www.hifisentralen.no/forumet/attachments/26d69d1d38275e8c54ccc5e8c030d563-jpg.594604/

https://www.hifinews.com/images/419unison.top.jpg

Cheers George
More to discover