Question about Likom HD15A 15" LCD Monitor

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Monitor won't turn on

My monitor would not come out of sleep mode. The power light was flashing and making a clicking noise, it was flashing yellow not green. I tried turning it off and on, re-booting the computer, unplugging it and plugging it back in but nothing seems to work. Should I give up and get a new monitor or do you think that there is a way to fix it. I got a new computer with windows vista on it but the monitor was working fine when I hooked it up to the new computer. Thanks for any help

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Re: Monitor won't turn on

Very easy fix. Replace on of the 220mF capacitors in converter.

Posted on Dec 18, 2011

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Re: Monitor won't turn on

Sounds like the internal power supply is bad. The clicking as a relay in the power supply. Try the monitor on another computer first and see if it works. Ray Compuguy44

Posted on Jun 22, 2007

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SOURCE: SVA Monitor stuck in Analog Mode or Sleep Mode

Actually it was quite easy. I rebooted my computer in "safe mode" by restarting it and pressing the F8 key. At the start up windows gives you an option to toggle down to "enable VGA mode" and select it. After that, my computer recognized my monitor and it has worked fine ever since!

Posted on Mar 13, 2008

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SOURCE: Hyundai LCD monitor L70N Stuck in sleep mode?

push and hold the power button... then hit the settings button on the monitor and goto power>sleep mode

Posted on Jun 17, 2008

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SOURCE: monitor in sleep mode

my computer is on but screen is black and has power. How can I fix it?

Posted on Sep 13, 2008

  • 2992 Answers

SOURCE: Monitor keeps stating "monitor going

This is probably a video setting issue. In Safe Mode, Windows starts with low resolution and color settings, so the monitor can display them. But when it tries to start normally, Windows is using a video setting the monitor can't handle.

Start the computer and press the F8 key three or four times when the manufacturer's logo screen appears. This should get you to the Windows startup menu screen, and you can pick the option of starting in VGA mode. This will start Windows with video settings any monitor can handle.

Once you have Windows up and running, make sure the video card and monitor types are properly set up. It would also be a good idea to download and install the latest drivers for your video card. You can usually find them at the manufacturer's website.

Posted on Feb 05, 2009

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SOURCE: monitor going to sleep problem

  • Hi, The Monitor as well the Computer have "Power Saving Modes," [Sleep, ScreenSavers, and Hibernation]; so what you want to do is "Change the way the Computer / Monitor Sleeps!" From the Desktop Screen, click on the "Start Button," next in the [Start Search Window], type: power. In the next [window] that opens, you should see, from your point of view; a "list" in the (left column) "Change when the computer sleep, the wording may be different, but it will be clear enough. Now all you have to do is change the way the Computer and Monitor "Sleep, or Turn-off." If the Monitor have its own "settings;" just find them by the [button on the monitor], and do the same thing as above; but I'm sure the computer will take care of both. If this solution to the problem was of help? Let me know by giving a "Helpful Rating", thanks, and have a "Great Memorial Day!"

Posted on May 30, 2010

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My lcd screen switch goes green and a message appears "going to sleep" and the switch light goes yellow

1. Verify the monitor's power cord is plugged firmly into the wall outlet and the back of the monitor.
2. Verify the monitor cable is firmly connected to the computer and the monitor.
3. Verify that you have turned the monitor power switch on.
4. If the power light on the monitor is not on, test the wall outlet (plug in a light or something you know works).
5. If the power light on the monitor is not on, try a different power cord.
6. If the power light is on and yellow or flashing, but nothing displays, borrow a monitor from a friend. If that works, your monitor needs replaced.

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When the CPU switch on, the system running upto 10 minutes. after that the monitor screen automatically off.

Here is artical I found on how to disable sleep mode on a monitor, this would be for VISTA or 7, if you are using XP it's a bit different. ____________________________________________________________ How to Disable Sleep Mode on a Monitor

Your computer monitor or laptop screen will enter sleep mode after your computer remains idle for a set period of time. You can disable sleep mode if you prefer the screen to remain illuminated. You merely need to change a setting in the Windows Power Management properties box.
Difficulty: Moderately Easy Instructions

  1. Click "Start" and "Control Panel".

  2. Click "System and Security" and "Power Options". This will bring up a new dialog box.

  3. Click the menus to the right of "Turn off the Display" and set them both to "Never". This will disable sleep mode.

Read more: How to Disable Sleep Mode on a Monitor '

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The monitor is going into sleep mode and not coming out easily or now at all. Yellow light is flashing and does not turn green. Started coming out of computer stand by with this issue a few weeks ago......

Sounds like the problem I'm having. Research uncovered a common problem with failed capacitirs on the power supply board. If you look at the tops of the electrolytic capacitors on the power supply board and any of them is bulging, you've found the problem. Check out for replacement capacitor set.

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The light is always yellow and the monitor wont turn on

Yellow led light means the monitor is in 'sleep' mode. There is no signal being sent from whatever it's connected to. If it's a computer, try checking the connection(s), make sure it's not come lose inside the computer, try if you can the computer on a different monitor or the monitor on a different computer.

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My ViewsonicVP930b Monitor Suddenly Turns Off

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.

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1 Answer

Monitor in sleep mode

This problem could be caused by windows or the monitor .You need to hook up your monitor to another computer and see if you get the same response. If you do check and see in the owners manual if there is a control for power management.Find the control and try to adjust it, or turn it off. If all this does not work than you need to take the monitor in for servicing. If the monitor works,you may have a problem with the computer bios or windows itself. Check all power management controls in the bios and window settings and see if you can find the problem.Check the Microsoft website for this problem with your operating system and a solution. Hope this helps.

Apr 08, 2009 | HP w1907 LCD Monitor

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Sharp light turns green thern turns yellow screen goes black

it is going into sleep mode, good luck with this.... i am currently asking how to get my hard drive to quite putting my monitor into sleep mode.

although it hasn't worked for me because my screen stays black, one of the options given to me is to try to start in safe mode and then adjust your settings to "never" on the energy/sleep/hibernate mode

some one else suggested that i remove and reseat the video card

hopefully one of those will work for you

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Monitor goes to sleep mode quickly without video cable

right click on desktop - click properties - click screensaver tab, and dropdown menu to none. this turns off screen saver. For power/hybernate....
start - control panel - power options. Change all pull down menus to "never"

Problem solved.

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connect the monitor to pc and press the power button to make it to the power on mode. you must have used your keyboard to make it on sleep mode.

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