jarvis@mit-caf.MIT.EDU (Jarvis Jacobs) (05/17/91)
Greetings:
SETUP: We have a VR299 monitor connected to a DEC station 5200.
PROBLEM: The VR299 monitor seems to fail on several occasions.
The monitor is completely dark and blank, e.g. no cursor.
TRIED SOLUTIONS:
1] Turning the VR299 monitor off.
2] Resetting the CPU.
3] Combination of 1 and 2.
4] Degaussing*
5] Changing the intensity (brightness)*
THE SOLUTION:
We have found that removing the VR299 monitor's
plastic cover reactives the monitor. This solution has
worked every time. It worked again today. We had a
power outage. This solution has worked on two different
VR299 monitors.
WHY: Could you give me a scientific reason
why the DEC's plastic cover affects the VR299 operation?
DEC magic!
Take out your the magical screw driver to get your VR299 back
jarvis
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alan@shodha.enet.dec.com ( Alan's Home for Wayward Notes File.) (05/18/91)
In article <6150@mit-caf.MIT.EDU>, jarvis@mit-caf.MIT.EDU (Jarvis Jacobs) writes: > > PROBLEM: The VR299 monitor seems to fail on several occasions. > The monitor is completely dark and blank, e.g. no cursor. > > THE SOLUTION: > > We have found that removing the VR299 monitor's plastic > cover reactives the monitor. > This is just a guess of course. Perhaps the monitor is overheating and there is a temperature sensor that's turning it off. By taking the cover off the heat dissipates and the sensor turns everything back on. Another possibility is that the cover is constricting some component or causing a short circuit. Taking the cover off removes the problem. The problem does sound suspiciously mechanical. > > WHY: Could you give me a scientific reason > why the DEC's plastic cover affects the VR299 operation? Apply the laws of thermodynamics... > jarvis > > ____ ____ * jarvis@caf.mit.edu * \____|||____/ -- Alan Rollow alan@nabeth.cxn.dec.com