Re: Screen display turns to black after 30 minutes of...
I had the same problem with my Proview monitor. I was told by a lot of people it was trashed. I typed in this website ati.amd.com and discovered my ati driver was either missing or some components were missing.
I downloaded the driver and now my monitor is staying on. I don't know if this will solve your problem like it has mine, but it's worth reading up on it.
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You can try a different cable for VGA. Check if the port is lose. The green light is only indicating a proper power supply to the monitor. The display is very much dependent on the VGA cable. If your monitor also has HDMI port, you can try to connect using that cable (provided the display adaptor also has HDMI port). If nothing works for you, take it to a hardware engineer or local repair shop.
did you check the output dc voltage at the power supply board if stable. if ok tried to disconnect first the supply going to the power inverter board of screen back light just to ensure if not the cause of shut down.
disconnect all the cable from the monitor except the power cable .
see if you see any test screen and keep it on ,if the test screen blacks out you monitor is bad ,better buy a new one as usually repairs cud be expensive
Hi sglick - you will need to do a few simple trouble shooting steps to pinpoint the problem, as this can be cause by several different things.
Follow these steps and reply back with your findings:
1. Unplug the monitor power cable, wait about 30 seconds, reconnect the cable and then turn on the monitor. This resets the electronics on the monitor.
2. Make sure the monitor has power - the light on the monitor is on. If the light on the monitor is off, the monitor does not have power. Connect it to a different power outlet.
3. If the monitor has a detachable video cable, obtain a second monitor cable for testing purposes in case the cable is bad.
4. Disconnect all connected devices except the mouse, keyboard and monitor. This includes thumb drives and camera-type memory cards from card reader slots. With the devices disconnected, restart the computer. If the computer starts and the monitor now displays a picture, a device is preventing the computer from starting or sending a proper video signal to the monitor. Update the BIOS to resolve this issue.
If doing all of this doesn't change your issue of no video after seeing it pop on, try the monitor on a different computer/laptop, and if you have one, a different monitor on the system with the problem.
Let us know what you find following these steps and we can figure out what to do next.
Please verify the power option setting present in 'control pannel' option once. If you have selected to turn off the power supply after 10mins, (once the system is in idle state) then the SMPS will stop supplying power.
Don't let the computer turn the monitor off. Go into control panel and click on power option. don't let the computer turn anything off and disable hibernation if on. go to screen saver and have it come on in about 30 mins.
Check the capacitors on the power supply board inside the monitor. They malfunction, heat up, leak or pop and stop doing what they are designed to do, smooth out the power supply to the inverter and display board. You can replace these simply by buying the correct farrad, voltage and temperature rated replacements online for about .30 a piece or go to radio shack and spend 1.50 a piece. You can use a higher voltage like 35V instead of 25V but try and get the 105c rated ones to last longer in the hot P/S environment. My bad ones were 470 micro farrad, 25V and 105c rated and I had 4 out of 8 pop or bulge.