Question about Audio Players & Recorders
SOURCE: My receiver is in protect mode.
The units in the protect mode because the Microprocessor detects a large current being drawn by the amp. section of the reciver. This is a solid state unit and there are no user replaceable parts inside this unit. Unless you know how to trouble shoot sloid state devices then you should seek a pro to assist you with this repair. GOOD LUCK
Posted on Jun 25, 2006
SOURCE: Protect Mode
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
SOURCE: Sony STR-D460Z receiver
I have had this problem several times with Sony receivers in the past. The issue may be frustrating but these receivers are idiot proof. It is doing you a favor by tripping and not setting your house on fire as well.
Many things like improper wire crossing or touching due to too much of the insulation stripped off can cause this. Thunder storms and power surges as well have been known do this to Sony receivers.
Unplug the unit and remove the cover. Look for any blown fuses as sometimes this is the problem. Take the fuse to a Radioshack to find new ones. However, it is likely you will need to take it in for repairs. This usually costs around $100. Find a local electronics repair shop in your area ( "TV Reapir in the yellow pages") or call Sony to send it to them.
I hope the latter works.
Posted on Mar 31, 2009
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