When turning on the receiver it says protect and shuts down. How can i fix this myself??
It's unlikely you can. Most hifi shops can though.
If you're still reading, open it up, and look for a switch of some kind. It may not even exist, but I'd say it's the best thing to look for when doing something considered mediocre at hifi shops (if it was difficult and interesting, they wouldn't find it so boring). Maybe it's a button. It will probably be labelled protection or reset or something similar.
So, look for a switch, or something similar. I have no idea where it would be because I've never dismantled such a thing. The other option (if you haven't done so already) is unplug it from the power and leave it for a while (overnight may be the best bet). This may fix it for you, and it's easier than undoing all those screws.
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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