I have aLikom HD19A LCD monitor. The problem is when the pc first boots up the power light would stay on standby until you power off and pwer on the monitor. The light turns Green until Windows boots up and I get the No video signal window. I power off and power on the monitor and the light turns grenn and I got signal.. The monitor worked normaly when I first install it. I've tried a different videocard and check the bios settings and the monitor still has the problem
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Try booting the pc in safe mode (press f8 at startup). It may be possible that the pc is trying to send too high a resolution to the monitor...unlikely though. The symptom you describe usually indicates that the power board or the inverter board in the monitor are defective. If it does the same thing in safe mode, you have 2 options.
1. Replace the power board and inverter board (do the inverter board first.......it's the cheaper one (10-20 dollars). 2. Send the monitor back to the seller for a refund, or get a new monitor.
Sorry I couldn't give you more positive feedback. Hope this helps.
ok, if your computer is able to boot until you able to use it yet the screen is showing none yet working too, i suggest you change your data cable from the computer to the monitor. i once had a problem like that. it must have been damaged by high input of charge and burnt off though it did not show.
I was called to repair similar incident last week. A Compaq box (don't remember the model) with a 'smart' usb keyboard. By this I mean that the keyboard had a row of what I'll call hot buttons. The client had pushed a button with a moon on it causing the monitor to go into sleep mode. I suspect that whatever key you pushed had the same effect.
After plugging a known good monitor into the faulty box I verified that the box was OK. This left me to think the monitor itself had a problem. Plugged the suspect monitor into a known good machine.. and it worked fine!!!
Set machine and monitor to original configuration and still had no video. Decided that the monitor was too smart for its own good and maybe there was something in the monitors menu. Pushed and held the 'menu' button on the monitor for a few seconds and menu comes forward. Green power led also comes on (surprising me) so I powered up the computer and lo and behold the problem is fixed!