[TechAssist] Re: Sony KV25DXR (very intermittent no startup)
- From: Kevin <kevintv@xxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 19 Aug 2003 13:23:17 -0700
It sounds like it is a hard to find bad solder connection that only
shows up when the TV is all back together. =20
Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx=20
=20
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Gemini Computer &
TV
Sent: Tuesday, August 19, 2003 11:56 AM
To: Techassist
Subject: [TechAssist] Sony KV25DXR (very intermittent no startup)
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=AE #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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