Having problems with your AOC LM729 17" LCD Monitor ?
Monitor problem Monitor powers on and displays an image for 10-20 seconds then screen goes black but power light stays on.
You are experiencing an inverter board failure. You will need to replace or repair the inverter. The inverter drives the CCFL lamps that illuminate the screen if the lamps draw to much current or components on the board are overheating it will shut down the backlights. Some monitors have cold solder joints on the toroidal coils of the inverter that causes this problem, very typical with HP monitors, If you are handy with a solder iron you may try just re-soldering board and replacing push-pull transistors for a few more years of use. Provide make and model and I can be more specific about probable cause and solution.
Its looks Bad CCFL lamps or a faulty TL1451 smd IC when power shutdown in 2 to 5 5 sec.
Repair Help & Product Troubleshooting for AOC LM729 17" LCD Monitor
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.
Suggested Questions/Answers :
ViewSonic VX922 monitor - black screen - green power light flashes
PLEASE read Carefully so here is a fix for the green blinking light ...the monitor is going into shutdown....protect mode......THIS is ...Only for the seasoned electronic service tech ......YOU NEED TO BE into Electronics ..or have electronic backgro ... ViewSonic VX922 19" Monitor Flat Panel
Monitor stays on for a few seconds then goes out
This problem is very often caused by dry electrolytic capacitors on the inverter board. If you have some skill with soldering you could try to change them. When buying new ones ask for LOW-ESR capacitors for switching mode power supplies (SMPS) and 1 ... Acer AL1711 17" Flat Panel LCD Monitor
Dell E171FP Monitor goes black after 2 secs
Hi, I don't think the problem is with your monitor. Your monitor sounds like it's doing exactly what it's supposed to do. The monitor is supposed to turn off if there's no cable attached, which means there's no signal input. When the screen goes b ... Dell E171FP 17" Flat Panel LCD Monitor
Monitor keeps blank even the power lLED is on green
Try replacin a new display card. If it is fine working.ok\015\012If not try fixing for cold solder in the video section.\015\012I suggest video section according your report the light green LED lighted that shows the power section is doin ... Proview PL913S 19" Flat Panel LCD Monitor
Sdm x73 screen goes black
Here is one thing you can do to help get to the root of your problem.Take a flashlight and shine it on the screen once it has gone to black. If you are able to see the screen information (your desktop) then you have a back light problem. ... Sony DELUXEPRO SDM-X73/B (Black) 17" LCD Monitor
Screen goes blank
Normal\015\012 0\015\012 \015\012 \015\012 false\015\012 false\015\012 false\015\012 \015\012 \015\012 \015\012 \015\012 \015\012 \015\012 \015\012 MicrosoftInternetExplorer4\015\012 \015\012\015\012 \015\012 \015\012\015\012\015\0 ... Dell E173FP 17" LCD Flat Panel Monitor
Screen goes black but power light stays on
Hello. I had the same problem with my X2gen 19" (model MW19R)monitor. In my case, the monitor would turn off after 20 seconds or so but the blue power light would stay on as well. I had to replace a high voltage capacitor located in the backlight pow ... X2Gen MG19VT 19" LCD Monitor
Screen Not Staying On
Hi TontBrowne,\015\012\015\012I'm not sure exactly what causes this problem. However it seems that lowering the 'Brightness' and 'Contrast' fixes things. The problem is, you can't see the menu without the backlight. However, try this, as ... Dell Dimension 4600 PC Desktop
Computer monitor flashes on then turns off
Try the monitor with another computer. If it works, the video circuitry (whether it is on-board or a separate adapter) in the Gateway is the problem and needs to be replaced. Otherwise, the problem is with the monitor itself. From your description ... Computer Monitors
X2gen mw19u 19'' widescreen monitor going black
X2GEN - MW19U, same problem as described in the other posts. A week ago after a reboot it did not turn on. Pressed the power button, it turned off. Pressed it again after about a minute, all was fine until this morning. Same as before except t ... X2Gen MG19MY 19" LCD Monitor
Problem w/Dell E176FPf monitor stuck in power save mode
Ok if it the monitor works fine on another unit discount it out of the equation as a monitor problem.I would suspect the driver on the PC that delivers the problem, especially the video card.. Check that the cable is also on tightly. remo ... Dell E153FP 15" LCD Monitor
Screen stays blank
I'm seeing the same problem as the original poster. that delaying the power-on helps, seems to be related to the video mode - it fails in the vga text mode the bios boots up with, but works fine with the later activated graphics mode. switching to te ... iiyama Vision Master Pro 450 Monitor
Microtek 997M monitor doesn't stay on...
The inverter is the most common item to fail on a LCd monitor. Capacitors usally fail the most. Are the tops of any of them popped up. If you had any shorted transistors the fuse would probably be blown. Usally labeled F1. I would replace all the cap ... Computer Monitors
Black screen flashes after initial power up
This happened to me, and I fixed it, so read on! Switch on... green LED for a couple of seconds, Brief flash of light with display working, the total shutdown. Switch off, repeat but press the front panel power button as soon as the green LED comes ... Sony SDM-HS73P 17" LCD Monitor
Screen goes black after 2 seconds
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 ... Planar PE191M 19" Flat Panel LCD Monitor
Monitor Goes black, or flickers on and off
The high pitch sound is coming from the inverter. It is faulty and needs to be repaired or replaced. The inverter supplies high voltage to the CCFL lamp, this lamp gives the backlight to the LCD so you can see the LCD images.\015\012Check out L ... ViewSonic OptiQuest Monitor
Pc screen goes black green light stays on
I have the same problem for my Dell Diamention 5150. It happen in Dec 07. Suspect the CPU heat related or one of the capacitor problem. Not yet solve. ... PC Desktops
Monitor goes black but the green light stays on. I turn the power button off and then back on and it comes back on. It may stay on for a few seconds to several minutes.
Check to see if the image is Dimmed. Chances are the power supply on the FPD is either dead or not supplying power to the back lights.\015\012Your problem is the back lights are not being powered. There is a signal going to your FPD becau ... PC Desktops
Screen goes black and power light goes out after a few minutes
It would seem that one of the internal components has failed / overheated Dont open the rear of the monitor !\015\012\015\012if pos drop it into your nearest pc repair shop and have is serviced it may just need cleaned to free it from dus ... Gateway FPD1760 17" LCD Monitor
Acer AL1917W goes black
I have recently opened my AL1917 (not wide) but it should work the same. First remove the stand. This is done by removing the plastic cover over the stand hinge (which appears to be part of the back cover, but is'nt.) Mine was done with simple tum ... Acer AL1917W LCD Monitor
Two monitors blank, but on
<table x:str="" style="border-collapse: collapse; width: 124pt;" border="0" cellpadding="0" cellspacing="0" width="165"><col style="width: 124pt;" width="165">\015\012<tr style="height: 14.25pt;" height="19">\015\012 \015\012<td ... Acer AL2216WBD LCD Monitor
Monitor loses power randomly.
Is your monitor a CRT or LCD type. For CRT type information follows. In most cases your simptoms indicate a problem with the High Voltage or blanking circuits. Caution the High voltage can be as much as 40,000 volts and even unplugged from the wall ... Gateway FPD2275W LCD Monitor
I have a Cornea 1702. It just stopped working altogether. It doesn't even show the menu nor does it search for a signal as it used to while scrolling thru options or select input! I think it's fried, but I remember some time ago i thought it was all done then it started working again. any thoughts?
OK, first off, I'd like to say that I've never worked on the Cornea 1702, but most monitors follow similar designs, especially generic brand monitors.So there are a few things I need to know: What exactly happens when you press the ... Cornea CT 1700 17" Flat Panel LCD Monitor
Screen going black, green LED staying on
Check to see if the image is Dimmed. Chances are the power supply on the FPD is either dead or not supplying power to the back lights.\015\012\015\012Your problem is the power supply or the inverter on your board, you can replace it and it will ... Gateway FPD 1730 17" Flat Panel LCD Monitor
Monitor displays breifly then goes to blank screen
Try booting up your CPU again, while on its process of booting press F8, then select (something MODE), okay, then when you are at windows environment go to control panel, select display, set your display settings its default or 900 by 600 pixels sett ... Dell Dimension 4600 PC Desktop