Question about Home Theater Systems
I have techwood receiver model number PLR85 the rear channels were working, then they quit..the speakers (checked them in front hook ups) work fine. inside there are little green plastic things (diodes?) with 2 wires what are they and what do I do??
I have a Techwood PLR85 spearkers will not play, have replaced bus fuses 6v&7v fuses keep blowing out and still nothing
Posted on Sep 26, 2008
My techwood digtal recorder keeps failing to record certain programs. saying recording failure?
Posted on Sep 07, 2009
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on Dec 28, 2008 | Samsung HT-WX70 Theater System
Jul 25, 2011 | RCA RTD218 500-WATT HOME THEATER SYSTEM...
Generally speaking, an amp protects itself from heat, shorts and overloads.
Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.
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