Bouncey-Bouncey

[Darren Friedlein]

In article <593 at proxftl.UUCP> aaron at proxftl.UUCP (Aaron Zimmerman) writes:
>My 3b1's monitor (you know, that ugly GreenScreen...) has a sore case of the
>bounceys. Sometimes it will decide to sort of vibrate up and down. That is,

I'm posting this because it may be of public interest - I had my screen
replaced for this while it was under warranty, but the service man showed
me how to fix the problem in the future:  There are three pot-switches on
the monitor board that are accessible by taking the cover off the screen.
They are, well, cheap, and oxide builds up on the plates and causes the
"bounceys".  The solution is to rotate the pots back and forth a few times
until the oxide is removed.  If it gets too bad (mine are getting to that
point) go to Radio Shack and get some more pots (or are they trimmers?  I
never know the difference...) and replace the existing ones.

I think the crucial one is the closest to the speaker.  Watch the one in
the middle, though -- if the screwdriver you're using touches the pot and the
chasis at the same time, the system will short and re-boot (neat, huh :-).

>Any suggestions would be most welcome. Also, is it possible to simply
>*replace* the monitor? I would really prefer amber, anyway. Also, monochrome
>monitors are so cheap, I ought to be able to just put a new one on for maybe
>$75, which would probably be cheaper than the repairs... unless there's some-
>thing simple wrong... or if the problem isn't in the screen, but in the video
>chip or the CPU clock or something...

>__   |  Aaron      |  Proximity Technology  |  #include <disclaimer.h>  |
>     |  Charles    |   3511 N-E 22nd Ave.   |  #include <cute_quote.h>  |
>__   |  Zimmerman  |    Fort Ladeda, Fla    |  cat flames > /dev/null   |

I know the monitor can be replaced, but since it's from AT&T, I don't think
it will come cheap.  I had a broken "u" key on my keyboard and AT&T wanted
$179 to swap for a keyboard with a working "u" key.  Well, I have a
working "u" key now, but I couldn't see giving AT&T $179 for it, so I have
no "Input Mode" key!  No big sacrifice...

Hope this helps!

-darren
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