[TechAssist] Re: Compaq 19" LCD monitor Mod.TFT8000
- From: "fremur01@xxxxxxxxx" <fremur01@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 4 Jun 2005 15:56:06 -0700 (PDT)
Pete,
I've read information about ballast lamps going bad.
The one I'm servicing has a good picture for less than
2 seconds then blinks off. Same symptoms when I inject
a signal from computer vga connector.
I've not yet torn too far into it, year of manufacture
is 2003. Man, these things go bad fast!
Fred
MTS Electronics
fremur01@xxxxxxxxx
Hello there -Dont know your name,but mine shuts down
too fast to tell.To answer your question,the flouro
tubes age & draw too much current causing shutdown @
convertor ps.
So,with that,maybe isolate tubes,scope the waveforms
etc.Highest failures I see are the tubes,bad sm
electrolytics all over the place[main bd/convertor]
FYI Site bylaws dictate you have a sigfile.I didn't
even know what that was when I joined.Everyone is
pretty helpful here.Regards,
Pete
"fremur01@xxxxxxxxx" <fremur01@xxxxxxxxx> wrote:
Pete,
I have a similar problem with a DELL 17" LCD in for
service. Does this Compaq you're working on also show
OSD or self test mode?
I wonder if these units develop backlight problems
prematurely. My experience is that HP will not sell
service literature on their monitors.
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of
majorthom@xxxxxxxxxxxxx
Sent: Saturday, June 04, 2005 4:31 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Compaq 19" LCD monitor
Mod.TFT8000
Comes on then blinks right out.Scoped anodes of the Hi
V xfmr drivers and saw great swings but just hash. HP
doesn't address the Hi V ps on the parts site.Anyone
know where I can find one.Anyone worked on this guy?
Regards,
Pete
Austin,TX 78756
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