Re: WG6100 no HV

Pinx,

Glad to hear you got it resolved. I know the cold solder on mine was
sure driving me
nuts! :>

Scott C.

Pinx wrote:
> 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 Tue Apr 10 19:15:35 2007