More parts I need to replace on the VT100
Julian Wolfe
fireflyst at earthlink.net
Wed Nov 30 15:51:36 CST 2005
The burned out resistors wouldn't have had anything to do with the blown
flyback or the shorted components I replaced on the video board?
> -----Original Message-----
> From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
> On Behalf Of Chuck Guzis
> Sent: Wednesday, November 30, 2005 3:18 PM
> To: cctalk at classiccmp.org
> Subject: Re: More parts I need to replace on the VT100
>
> On 11/30/2005 at 11:25 AM Dwight K. Elvey wrote:
>
> > Many IC's and transistors show little to no visual
> >indications that they are shorted inside. I don't
> >know how one can find these without understanding
> >where the resistors are in the schematic and how
> >the resistors are being used.
>
> Actually, many servicepeople rely on compiled tips for servicing.
> Something like "If there's no vertical sweep, replace R302, Q401 and
> C213".
> And with a lot of modern gear, manufacturer's schematics are almost
> useless, where signals disappear into a house-numbered chip with no clue
> as
> to the function or pinout on said chip.
>
> I confess that I've used the Euras technical database several times. For
> the $5 for a 14-day ticket, it's not a bad deal and usually makes short
> work of diagnosing problems on TVs.
>
> That being said, I agree with your statement about how burned resistors
> are
> usually a symptom of a shorted component somewhere else.
>
> Cheers,
> Chuck
>
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