Question about Computers & Internet
My SyncMaster 171v suddenly turns off after an hour, sometimes two hours, sometimes 20 mins. I can't wake it up. The green power light turns off and the power button does not work. If I unplug it and plug it back in, it works for the next hour or two or 20 mins. All my hibernation settings, etc. are turned to "never."
A different monitor on the same computer worked fine. So I figured it's the monitor. But the bad monitor on a different computer worked fine.
try to check your screen resolution maybe not compatible to your System. if green flashing there no signal from cpu to VGA cable monitor.
Posted on Jun 07, 2009
The Problem may be due to the defective inverter unit inside the monitor. Dry to resolder if any dry joint on the inverter PCB or replace the inverter board.
Posted on Jun 28, 2009
It sounds like you have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of the monitor. If you are good at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work fine. The capacitors do need to be installed with the correct + and - connections, note the stripe on the old one and insert the new one the same way. Look in our monitor repair section for step by step repair guide for this model it should be the same power supply as the 930. If you don't want to try the repair yourself we offer a repair service for $35 plus shipping.
I hope this helps, if so please rate my solution.
Over 21 years of computer and printer support/repair
Posted on Jul 22, 2009
This is a classic VP930 problem.
It is caused by bad capacitors in the power supply circuit.
Open the monitor, and look at the power board. There are six capacitors. Replace the 220uF @ 25V and the 1000uF @ 16V capacitors. I would recommend replacing them with 35V and 25V capacitors respectively.
If the serial number on your monitor starts with Q8H you could also have a bad IC on the main board. Q8 on the main board is an FET in an IC package. If this problem persists solder a wire from the right side to the left side. There is one pin that turns the IC on and off. All the other pins (per side) are soldered together. Do not solder the pin on the left side that is by itself. Just leave it. Solder ALL the other pins on the left to ALL the other pins on the right.
Remember, do this ONLY if the problem persists after replacing the capacitors AND if your serial number starts with Q8H.
Posted on Sep 15, 2009
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