Question about Sony STR-DE625
The protector flashes I have turn it off and disconnected all wires. I just opened it there is a bit of dust in there .I will try and remove that . I am a girlie chick and don't understand these things but want to fix it please help thanks.
Chances are it will need replacement parts (output transistors and a couple of resistors) Probably best left up to a repair shop tech.
Posted on Feb 02, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
The protective device on the receiver has been activated because of a short circuit.
("PROTECTOR" flashes.) Turn off the receiver, eliminate the short-circuit problem and turn on the power again.
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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