2. amps-preamps
  3. 1038466429

Help with blown amp

I have a Plinius SA-102 amp which I have had for a few months. It sounds great and I have never had a problem with it. This evening, I was in another room, not listening to music. The amp was on as always, but no music was being played. All of a sudden I heard a loud hissing sound which lasted for about 3 or 4 seconds and then a click. The amp has an automatic mute switch which kicks in when there is a problem. When I checked out what was going on, the mute switch was on and I could smell burning plastic. The mute switch will not go off, and the amp will not work. I immediately unplugged the unit and tried to remove the top lid (per the instructions) to see if one of the fuses has blown. Unfortunately, I can't unscrew some of the allen nuts as they are too torqued.

Can someone please help me get a good night's sleep and tell me that it's only a fuse? Could it be worse? Any ideas on how to get overtorqued screws out?

Any help would be greatly appreciated.
gboren

Showing 1 response by twl

twl
3,251 posts
 
Hate to say it, but if you smelled burning plastic, the prognosis doesn't look good. If the amp is just a few months old, then send it back to the Mfr. They generally prefer that you don't take them apart yourself.

If you must take it apart yourself, then you just have to get a little more "gusto" into your allen wrench. That is what they will do at the factory. If you break a screw, then you can replace it after you get the cover off. Make sure that you are taking out the proper screws, that don't have nuts on the other side.
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