Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

 
 
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Default Sony TV model KV27V40 blink codes?

This set will not power up. When you first plug it in the led blinks 10
times, then the relay clicks and holds for 10 seconds and then clicks
again. Then the led blinks 4 times. Thereafter as long as its plugged
it does a repeating sequence of 4 blinks. Trying to turn it on during
this sequence interrupts it, the relay again holds for about 10 seconds
then drops out and the 4 blink sequence resumes. I found cold solder
joints on the hor. driver transformer and the HOT shorted. I redid all
the soldering and replaced the Hot which was a 2SC5425 with a 2SD2580.
The set still does the same thing. I don't have a schematic and so I
was wondering if anyone knows of any further problems with these sets
or perhaps from a troubleshooting point of view could point me in the
right direction. Thanks very much for any assistance.
Lenny Stein, Barlen Electronics

 
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