“I have a "vintage" STR-DE505 Sony Amplifier Receiver. The "protect" signal comes on frequently. Wiring connections seem to be OK from the TV, 2 medium speakers and a CD player. It appears to be clean inside the box. Should I buy a new one or a repair?”
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Ok this is where it gets fun. First check speaker connections making sure red to red and black to black also make sure that no little speaker wires are sticking out n touching the other inputs ok. Next a bad cord can do this usually it’s a bad HDMI wire ok but you can switch out your cd wire also. I have had this occur once years ago where speaker wires had become pinched, so check for that. Now call and get an estimate or take it in and ask for an estimate to repair them decide if it’s cheaper to repair or replace. Ok a good way to test this is also unhook everything and see if you still get the protect signal, if so it’s the reciever. Hope this helps mostly I have found it to be speaker wires or HDMI cables. But if this occurs on all settings check speaker wires then disconnect everything and check, if still showing protect it’s a reciever problem
Sorry, there was a problem. Please try again later.Sounds like a short inside the receiver. The protect light usually means it’s preventing your other devices from getting damaged. I would definitely replace it as the repair will most likely be more expensive.
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