More parts I need to replace on the VT100

[Chuck Guzis]

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