Question about Amplifiers & Preamps
When i plug them in the sound still comes through the speakers and i dont seem to be able to turn them off,there are 2 bttons for speakers a and b but thy dont seem to do anythng...
If you turn speakers A and B off together, there should be no sound coming out from your speakers(be sure that you do not have the amp operating in surroundmode.). The headphone cct in this amp is not affected by speaker switching and remains on all the time. v
Posted on Dec 17, 2007
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See Troubleshooting Page 79
Impedance Selector in between settings
Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; 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 and competent hands-on tech.
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