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Re: Receiver keeps flashing "PROTECT"
The protect message indicates that a problem was detected in the last stage of the amplifier and that it has shutdown to prevent further damage. Usually this indicates that the output transistors have failed. Any shop that works on audio should be able to repair this. Expect a part cost in the $20-$40 range. Add in the local labor rate for the total repair cost.
I bought mine from Goodwill, when I plugged it in at the store it worked fine. I didn't get this problem until I had a power surge. I thought that may have been the reason it showed up at goodwill. I unplugged it and set it aside and used my spare. After a few days I thought I would trouble shoot it. I plugged it back in and it started working again. I have had this happen twice now over a 2 year period. Just leave unplugged for a while and try it again. It's &*^!@$% Magic!
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Protect is the amp's way of saying it is protecting itself from trying to deliver more current than it can. First step is to disconnect the speakers. Have no input signal present (volume all the way down) so it is not trying to put out power. If the protect indicator still comes on, the amp has an internal short or problem and needs professional help. If the indicator does not come on, then you have an issue in your wiring or the speakers. Reconnect one at a time or get new cables and try again. Good luck.
The protect message indicates that a problem was detected at the final stage of the amplifier and the unit has been shutdown to prevent further damage.
If the unit continues to flash protect even with the speaker wires disconnected, then the problem is internal to the unit and it will require repair not just a reset. The typical reason for this is shorted output transistors. Expect a repair cost of $25-$45 for parts if it continues with the protect message.
there is a similar problem to yours on here. also, does it take a minute to go into protect or does it happen almost immediately? i'd unplug all your speakers from the back of the receiver and turn it on, if it still goes into protect it sounds like an internal problem which has been addressed. look at this for internal problems; http://www.fixya.com/support/t245043-teac_stereo_receiver_model_agv8520