The most common cause for what you are describing is that the picture
tube (CRT) is getting weak. The best you can do, is to measure the bias
volts at the CRT socket, and use an HV probe to verify that the anode
voltage is correct. You will need a DVM with a high voltage probe to do
this test. You will also need the service manual to have the voltage
information.

Take care, that there are serious safety issues when working in
monitors. If you are not experienced at TV and monitor service, you
would be best off taking the monitor for a proper estimate, and having
it professionaly serviced.

As for the type of monitor you have, in advance, I would say that the
best feasiblity would be to retire it, and get a new one.


Jerry G.
======



John Keiser wrote:
I leave my Acer 77e on all the time. Ocassionally when the PC wakes up in
the morning, the screen remains dark and fuzzy for 15 minutes or so and then
gradually becomes perfect.
This may happen once a month or less.
Usually all is OK afterwards but yesterday the dark/fuzzy condition wuld
recur after any hibernation.
Its OK this morning.
I expect I'll have an impossible task in trying to find the weak/failing
component [capacitor?] since the condition is intermittent.
I've read Goldwasser's FAQ's
I have a schematic.
Any better clues for this model?
Thank you.

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