[TechAssist] Re: Magnavox Ch.25B800 Shuts Down
- From: HSWAD@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 5 Nov 2001 20:43:38 EST
In a message dated 11/5/01 8:15:10 PM Eastern Standard Time,
Merlin-Wizard@xxxxxxxxxxxxxxxx writes:
<< 00 Shuts Down
Date: 11/5/01 8:15:10 PM Eastern Standard Time
From: Merlin-Wizard@xxxxxxxxxxxxxxxx (Ralph Dorsey)
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come on boys,,what about defeating the horz shutdown circuit and see if
it keeps running,,,if you have a changed value hold down cap, you can
have all correct voltages but to high of high voltage, have we even
checked the high voltage with a probe yet?
MikE wrote:
> gow tv service -
> monitor the b+ applied to the horiz output
> collector (remember there is a purty good
> sized spike here also) see if it stays
> stable or if it quits when things stop -
> either the regulated supply feeding the
> horiz is quitting and killing it or if it is
> ok when pix an audio are gone maybe the
> ho-xfmr itself is the culprit .... also
> double check the solder jobs in the power
> supply areas and on the ho-xfmr pins ... one
> other possibility is xray protect shutdown -
> ya should be able ta
> figure how to stop that tho, you wouldn't
> think it would be the problem tho cause ya
> lowered the ac line an it still quit ....
> some sets w/a weak crt will also do this
> .... luck bee yers MikE
>
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Date: Mon, 05 Nov 2001 19:13:40 -0600
From: Ralph Dorsey <Merlin-Wizard@xxxxxxxxxxxxxxxx>
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Subject: [TechAssist] Re: Magnavox Ch.25B800 Shuts Down
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>>
Like I said use a camcorder so you can see what happenend when it shuts down.
I did that for years repairing TVs that the other guys couldn't fix. Hollis
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