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Posted by Sten on September 26, 2004 at 01:21:55:
In Reply to: AU-G77X Protector light problem posted by Scott Childers on September 25, 2004 at 19:57:44:
Check for faulty Driver and Power Transistors as well as Bias Current and DC at output,
To simplify all work you can get a Service Manual if you click on Obs Inc at the top of this page or the link below.
: I have an old Sansui AU-G77X Amp that I was going to try to repair. When powered on the protector light continues to flash and never goes green. I have checked the fuse, and for obvious stuff on the boards like loose solder joints, bad connections loose grounds etc. I have not been able to locate anything. All the CAPs appear to be ok to me, no leakage or discoloration. Does anyone have any suggestions of what I can check next. Have a DMM but no schematic so not quite sure at what ponits I should be checking for a short.
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