Question about Sony STR-DE475 Receiver
Protect mode with nothing connected indicates an internal problem. Most likely one or more output transistors are shorted. This is a common problem with these and can easily be repaired by a shop for around $35 in parts plus the local labor rate. The output transistors are MN1620 and MP2488 (if memory serves me correctly).
Posted on Mar 31, 2008
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Posted on Jan 02, 2017
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