[TechAssist] Sony STR-D315 one side blown, need schematic
- From: Kevin <kevintv@xxxxxxx>
- To: TECH-ASSIST <techassist@xxxxxxxxxxxxx>
- Date: Thu, 23 Jan 2003 15:21:46 -0800
Hi fellow techs,
Both output transistors, Q712, Q713 are shorted on one side?and Q755,
Q757 are shorted on the other side. Must be a ying/yang thing. Does
anyone have the schematic for this Sony STR-D315? I don?t repair a lot
of stereos so this one seems different to me.
I might have shorted Q755 and Q757 when I was measuring the voltages at
the outputs with the outputs disconnected. As I was measuring the
voltages Q705 fell out of circuit because it was so hot the solder
melted. This transistor however still tests good. That is when I
checked the other 3 similar transistors and found Q755 and Q757 shorted.
I think I tested these before and they tested good. I tested these
before because the solder connections looked like they had endured a lot
of heat.
Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx
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