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I turn on my pc it work but no picture appear in the monitor

That mean one of three

1- see small square in the middle of the monitor mean data cable is damaged

2- monitor led didn't light mean power cable is damaged or monitor

3- vga socket in motherboard is damged

best regards

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My monitor works fine for weeks than suddenly just goes black! I turn it off and back on and it only stays on for about three seconds than goes black again! The power light stays on!


take off the monitor data cable from pc and try to turn monitor on if appears a smal square on the screen that mean your monitor is ok , and the black screen reason maybe data cable or vga card.

note : your monitor resolution is 1680x1050 some times wrong resolution cause like this problems

if you see that is helpful please don't forget to vote me
best regards

Apr 22, 2011 | Acer P221W LCD Monitor

1 Answer

the computer works fine...the screen does not show anything


that mean one of three

1- see small square in the middle of the monitor mean data cable is damaged

2- monitor led didn't light mean power cable is damaged or monitor

3- vga socket in motherboard is damged

best regards

Apr 04, 2011 | Computers & Internet

1 Answer

the monitor HPL1940T refuses to on


Is there a LED light on any part of the screen after you power it on?
1) If there is, try replacing the VGA/DVI cable (cable from PC to monitor). If nothing shows up, it means there is a hardware defect and you will need to send it in for warranty or repair.
2) If there is no LED light to begin with, replace the power cable and try it again.
Still no light - repair/replace it. If LED appears - See Number 1)

Mar 03, 2011 | HP L1940T 19" LCD Monitor

2 Answers

green light continously blinking in samsung sync master 753s


1. cpu problem. why because of there is no signal output from cpu to monitor. the led blinking means there is no vertical, horizontal signals from cpu to monitor.

2. your monitor connected to another system.

3. neck board dry points.

4. cheak the display cable. 13&14 pins are horizontal, vertical signals.1, 2, 3 pins , R G B , 6 ,7, 8 pins R G B ground ( coaxiler cable used , meshed wire is ground )

Oct 13, 2008 | Samsung SyncMaster 753S 17" CRT Monitor

1 Answer

All three LED's blinking, no video


hi, does the three lights blink only after u connect it to a display card??if yes then check if any of the connecter pins are damaged, or check out the display card..bye let me know

Dec 08, 2007 | Dell E173FP 17" LCD Monitor

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