30 Apr
2002
30 Apr
'02
10:52 a.m.
Well, the brightness is turned up farther than I like (100%) but it's been
just fine through an entire CD. I'll let it cook for a while yet, maybe a day
or so, and then we'll see where we are.
Please do send that doc you referred to. I'd like to have a look at it.
Dick
----- Original Message -----
From: "Chris" <mythtech(a)mac.com>
To: "Classic Computer" <classiccmp(a)classiccmp.org>
Sent: Tuesday, April 30, 2002 4:42 PM
Subject: Re: APPLEVISION Monitor
>When I adjust the brightness upward, it goes up
for a moment, then
>suddenly there's considerable pincushioning and the vertical dimension goes
>down a mite, say 10%. When I adjust the pincushion, the pincushion goes
away
>immediately, though I've not adjusted
anything, and the image size goes
back
to what it was,
but it's dim again.
Doesn't really match any of the repair notes in the tech manual. Although
there is a comment about CRT Arcing, and to turn off the unit, unplug the
power cord and ADB cable from the monitor, wait 10 seconds, hook it all
back up, and power it up. Problem should be gone.... but like I said, it
isn't exactly the same thing as you are describing, so that might not do
squat for you.
Rather it sounds more like the brightness control might be dying. Maybe a
bad cap or something (I'm not an EE, so I defer to someone with more
knowledge in these things than me).
-chris
<http://www.mythtech.net>