[TechAssist] Sony KV25DXR (very intermittent no startup)
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: "Techassist" <techassist@xxxxxxxxxxxxx>
- Date: Tue, 19 Aug 2003 14:56:03 -0400
I have an oldie Sony KV25DXR that has a very intermittent no startup
condition. Whenever I have it open on the bench it loves to work great. When
the "no startup" condition is present, I hear the relay click and I do get
high voltage and the sleep led is lit, but it will have no raster and no
audio. The +12, +5, and -5 volts supplies are on the money. I do not have a
schematic. I have replaced C567 (22mfd/160v) and C1600 (330mfd/25v) on the
"D" board. I also opened up the power supply cage and pulled out both boards
and completely cleaned and resolder them up good. I really don't have much
else to go on. L304, IC601, C548, and D2047 are good. Anyone out remember
these heavy buggers and may know something about these I may be overlooking?
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
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