30 Aug
2000
30 Aug
'00
2:25 a.m.
----- Original Message -----
From: <healyzh(a)aracnet.com>
To: <classiccmp(a)classiccmp.org>
Sent: Wednesday, August 30, 2000 2:29 PM
Subject: DEC VR260 Monitor Problem
The only indication of output is on the middel
2/5th's of
the screen, there is a strip across it. Playing with brightness and
contrast doesn't seem to help any. More disturbing disconnecting the
video
cable doesn't seem to cause any change either.
Partial vertical collapse. For a start anyway.
Not familiar with the circuit, but likely culprits are electrolytic
capacitors in the vertical output stage,
or possibly the vertical output transistors themselves.
The only thing I'm sure about is that the VCB01,
cable and VR260 all
worked
when I stuck them in storaage about 3 years ago.
Sounds like dried up caps. Id the vertical stage, and change all the
electrolytics in the area.
cheers
Geoff Roberts
Computer Systems Manager
Saint Mark's College
Port Pirie,
South Australia
geoffrob(a)stmarks.pp.catholic.edu.au
netcafe(a)tell.net.au
ICQ: 1970476