I own a Viewsonic G810 CRT monitor and for the last few days I have been seeing frequent flickering on my screen when I use it. This morning before I left for the day, it was getting worse and when I returned home in the evening, I found my screen black with 1 bright solid vertical line running through. I turned the monitor off and now there is no image/vertical line. Have I blown the bulb? IF so, what are the costs associated and is it worth the repair? It's approximately 5 years old and it is being used quite often, as it's my main work/house computer.
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Please try to connect other monitor to your CPU.because I know the problem is in your video card graphic.also change your screen resolution to 1024 by 768.
if same problem again. need to check-up your viewsonic p75f+ crt monitor. some parts of your vertical video section capacitor leakages.
This problem is due to a defective microswitch in the brightness and contrast button of your monitor. To rectify this problem, you'll have to replace this microswitch. Please refer the servicing to a trained repair technician.
The problem is that it is on the verge of going out my mother had a monitor go out and it did the same thing. Also if you have any high frequeny things around your monitor thatr also migh be the thing. Try a magnet or demagnitze the screen if you have one on it.
+++++++++++++++++++++++++++++++++++++++++++ This is the same problem with my 4 VG800 Monitors, you should be able to find the correct capacitor on your monitors by following the same procedure, I'm sure the boards are similar. Just get the correct value capacitor and try it in parallel with the initial filter capacitors right after the DC power in. +++++++++++++++++++++++++++++++++++++++++++
Alright, I had 4 VG800 monitors with the exact same problem. The front
led is blinky OR constant reddish/orangish OR picture is white with
colored vertical lines OR no picture with whistling from the back of
the monitor and backlights illuminated. All problems have the same
solution. You need to disassemble the monitor (2 screws on the back,
remove lower front button panel, remove 2 screws holding panel in and
remove speakers, then remove panel and unplug speakers. Now remove
lots of tape and screws from the cover in the center of the monitor).
Now that you've exposed the amplifier board and the VGA to LVDS board,
you want to look for the pair of 25V 100microfarad capacitors that are
nearby the DC power in (they are right next to the black "100"
inductor). Desolder the capacitor farthest from the DC jack and
replace with an electrolytic with the same specifications. If you want
to check that this is the correct solution please put the new capacitor
(WATCH THE POLARITY) in parallel with the capacitor there want watch
the front panel indicator go green and the monitor work properly.
I'll be posting and Instructable entry in the next few days on the
process, watch for the username Waterppk on the website