Sony STR-AV550 Receiver PROTECTOR light


New member
Username: Highphlyer

Austin, Texas USA

Post Number: 1
Registered: Feb-05
PROTECTOR light comes on as soon as I turn power on, regardless of speaker switch positions. I unplugged speakers and all other components from rear, thoroughly cleaned outside and inside with compressed air. Didn't help.
This is a 1987 vintage A/V receiver and it has served well up until now. Always kept clean and on an open shelf (no overheating).
Anyone have any suggestions as to the cause?
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