Re: WG6100 no HV

Hi Scott,

>I had a WG6102 doing something similar a number of months ago and
> it wound-up being cold solder

and this is exactly what my problem turned out to be. Getting the missus to
stand and watch the screen whilst i went around tapping the monitor frame
with the handle of an insulated screwdriver, tapping the HV cage would make
the image show for a second or so, so i removed the cage and gave the HV pcb
a close visual inspection using a linen tester (a left over from my days as
a lithographic printer) and this showed there was a very fine crack in the
solder on one of the pins on T901 that couldnt be seen with the naked eye, i
reflowed in new solder to all T901 pins and bingo, its alive and working.
Just to be on the safe side i reflowed all joints on every component that i
hadn't replaced, fitted the HV cage back in, adjusted the HV back down to
19kv as it was just a bit over 20kv and its been playing for well over two
hours solid now with no problems.
So easy to over look the obvious, but at least its had a bit of a birthday
component wise.

Thanx go to Mark, Scott and Simon for the advice, its days like these that
just go to show how handy the vectorlist is :O)

Pinx

----- Original Message -----
From: "Scott Caldwell" <scottcaldwell@sbcglobal.net>
To: <vectorlist@vectorlist.org>
Sent: Sunday, April 08, 2007 4:56 PM
Subject: Re: VECTOR: WG6100 no HV

>I had a WG6102 doing something similar a number of months ago and
> it wound-up being cold solder. I literally replaced over half of the
> parts
> on the HV PCB and still no good. It would heat up and then fade away.
> I finally pulled it and literally replaced every single solder pointon the
> entire HV PCB. Plugged it back in and it has been rock solid every
> since!
>
> When it fades out, trying hitting the frame of the monitor in several
> different places. If I did this to mine, the picture would come back for
> just a moment (a flash to possibly a second or two), but it was enough
> to prove my theory.
>
> Scott C.

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Received on Mon Apr 9 07:15:37 2007