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29th May 2007, 05:17 AM
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diyAudio Member
Join Date: Aug 2005
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Troubleshooting Sony STR-DE975
Hello,
I have a Sony STR-DE975 that a friend gave me and it's broken. If I turn it ON ''protector'' is written on screen. I open the case and saw that a resistor was cracked open and pcb was burnt. I was reading the service manual and I remark that it was a 1KOhm 5% resistor so I change it for a new one and repair the burnt pcb trace with wire. I put the receiver ON and smoke was coming out of the resistor so I shut it down. Now I'm not sure of what is not working correctly. I have a multimeter but I don't know what to test so it would be pleased if someone could help. Here are some pictures: Inside the receiver  First Repair  Burnt resistor and pcb  Other pic  I have the service manual that I could send if someone want's to help |
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