Question about Cornea MP 704 17" Flat Panel LCD Monitor

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Monitor not powering up

I have an issue, the lcd is black but the monitor is powered on can anyone help?

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Re: Monitor not powering up

Try another monitor on that same pc, try your monitor on another pc. Next, check the data cable for any short.

Posted on May 09, 2007

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Samsung lcd le27s7 screening problem


The problem with your lcd monitor is that the picture board of your lcd monitor is faulty that is why it power on for one second goes gray and finally black with only sound.

Since the power led button is on and it still give sound but no display, it means the picture board of your monitor is bad.

All you need to do is to take the lcd monitor to any local repairer or any service center within your vicinity to help with the replacement of the picture board because the fault is not something you can fix all alone in other to complicate issue.

Take care

May 02, 2010 | Computer Monitors

4 Answers

Monitor cutting out

Follow steps in sequence:

1. Turn Off Monitor by pressing power button on LCD
2. Shut down computer
3. Unplug power cable from LCD, Once power cable is unplugged from LCD, press and hold down the power button on LCD for 15 seconds

4. Unplug the power cable from the back of Desktop Computer and Hold down the power button on desktop computer for 15 seconds

5. Plug the power cables back into the LCD and Desktop Computer

6. Power on computer and then power on LCD, it should work

Oct 06, 2008 | Samtron Computer Monitors

2 Answers

HP w22 Monitor display disappears after about 2

bill, if monitor not covered by warranty, the check out YOUTUBE for long 8-12 minute video clips of LCD monitor disassembly or LCD monitor repair to find out what the major cause of your monitors SYMPTOM that you described above. Here is a small hint for you. If you didn't see the displayed data on the BLACK lcd panel with the flashlight "trick" then you would know that the entire "switch-mode-power-supply" was in complete SHUTDOWN mode or even blown the "line-in fuse" for the monitor. Also try a visit to www. and view some of their vids on repair of lcd SMPS/INVERTER supplys and cold-cathode-fluorescent-lamp replacement. They also do the repairs and return shipping. Please rate this on fixya if this response was helpful. Bye for now. 12fixlouie

Oct 25, 2009 | HP W22 LCD Monitor

1 Answer

Monitor comes on momentarilly, then screen turns black. when power is turned off and back on again, screen comes on for a second, then goes black again. Is this a bad monitor?

The only problem that causes the power on and off is a bad power supply. Go onto and search for the monitor (power supply). My dad's old LCD screen had a bad power supply, but I found my old printer power cable (HP PSC 750 All-in-One Printer), and the monitor turned on successfully. It's not a bad monitor, unless the PSU hookup is like the PC ATX/Baby-AT PSU cable, then it might be the issue. Monitors before 2004 or 2005 have the ones, like the HP PSC 750 uses. The monitor is either defective, or the power supply is dead.

p.s.: check the voltage, amp usage, etc. on the PSU for the monitor for better results.

Aug 28, 2009 | Gateway FPD 1730 17 in. Flat Panel LCD...

1 Answer

Monitor displays image for second and displays black again

Your Monitor has a heat sink issue. A capacitor in the monitor is at fault and when it heats it tells the monitor to turn off the display to save the display from damage....Problem Cost to repair will supercede the cost to replace it...Wal-mart 15" monitor 119bucks --17" monitor 129...same at staples office supply (Poof) problem solved.

Mar 21, 2009 | Gateway FPD 1810 18.1" Flat Panel LCD...

1 Answer

LiquidVideo L17LCD2 17 in. Flat Panel LCD Monitor - Power Issues

firstly stop turning it off and on because you will blow something else like a power board then it will be a big paper weight.
next get a torch and when it is powered on and supposed to be showing images, shine the torch at the screen.
if you can see everything then you have a broken backlight or problem with your backlight and connections.
they cost approx £15 and a little labour, its not a big job. you may be able to do it yourself if you can get hold of a service manual.

Feb 26, 2009 | Liquid Video L17LCD2 17" Flat Panel LCD...

2 Answers

Aoc lm725 display off after few seconds

I've had a very similar issue on many Dell Monitors. Mine have been under warranty and they usually send me a new monitor, but I believe the issue lies with the power supply within the monitor.

Jul 10, 2008 | AOC LM729 17" LCD Monitor

3 Answers

Monitor black out

try to adjust the setting of your video and refresh rate

Mar 12, 2008 | Videoseven V7 R19WPS 19" LCD Monitor

1 Answer

Acer al1714

The problem may not be the monitor. Acer AL1714 is known for its weak power supply unit. Unplug power supply from monitor. If the green light on monitor comes on but goes out quickly, the power supply is the culprit!

Dec 28, 2007 | Acer AL1714 17" LCD Monitor

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