I had the same problem before. I open my set to find out the faulty component are at power supply main board.
I change the electrlytic capacitor 680microfarad and a resistor burnt near the FET.
You can visual check first.Color changes and bulky form on cap and burnt resistor easily.
Have a try.
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Check connection cable with videocard on your PC, unplug it and
carefully plug it in again. (Turn off your monitor during this
operation). If monitor goes black after loading OS (like Windows), then
your screen resolution higher then monitor can support. Load computer
in Safe Mode and lower screen resolution.
This could be one of two problems, the light in your monitor has a loose cable, or the light is dying. I have seen cold cathode lights that are about 10-15$ to buy and many instructions on putting them in yourself.
Solution 2, your cable is loose on the back of the monitor. Make sure you have the screws tightened on either side of the vga or dvi cable, both on the back of your monitor and on the back of your computer or laptop.
Sounds like a bad solder joint on the printed circuit board. Once it heats up then it no longer makes good contact and the monitor goes black until it cools down and makes contact again. You could resolder it if you knew where it was but monitors are dangerous to go playing around with as they can hold very high charges of electricity in their capacitors that are very dangerous. It's a throw away world. Go buy a new one.
Hi Gaz, First, verify the monitor is functional. Monitor STFC (Self Test Feature Check) Turn off the monitor Plug the monitor power cord directly into the wall socket to remove any surge protectors or APCs from the troubleshooting equation Unplug the monitor video cable from the back of the computer Turn on the monitor The floating dialog box should appear on screen against a black background. If the issue appears during the STFC, the monitor is defective. What are the results please?
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it seems tht the monitor has gone bad & needs to be replaced....try running a monitor self test by unplugging the monitor cable frm the back of the cmputer & make sure the monitor is receving power frm the wall outlet....chk if the monitor displays anything......let me knw if it wrks
How old is the computer? Make sure that the power light comes onto the monitor when you plug it in, should be orange and then turn green when video card syncs with it when PC is turned on. If you are getting black screen when PC is powered on:
1. Bad video card
2. Bad video cable
3. Bad monitor
1Solution: Try using a different monitor attached to this same PC and see if it works. If it does, then its the monitor, its cable, or its power supply. If it doesn't work, then its the video card or the video cable coming from monitor.
plug in a different monitor temporarily, check your display settings (right click background, settings, advanced, monitor)
and set refresh rate to 60hz.
plug in this monitor again and see if that helps
some monitors (lcd's especially) cannot handle beyond 60hz