Question about LG Flatron L1710S 17" LCD Monitor

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INVERTER FAULT Can see the backlight is not working after few secs , pushing on /off button restores picture for 2 sec , then goes off again

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  • Anonymous May 26, 2008

    same problem.  turn on and off and screen flashes but that's it.

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Most common lcd monitor break down, check all electrolytic capacitors for leakage and loose board solder specially on the ccfl inverter section.

Posted on Jun 01, 2008

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It is not the inverter,rather one of the backlight tubes failing.It'as a bit of a pain to do but repairable.

Posted on Sep 04, 2009

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Related Questions:

1 Answer

My monitor works only for a sec when i turn on my pc and then it's off, but the led is showing that he is still working.


If the monitor is going into sleep mode the normal power led will change to another color. This indicates loss of video signal or possible out of range resolution. If the picture goes dark and the power lite stays on, you have a backlight malfunction. It can be bad capacitors causing an inverter power fault or it may have worn out backlights causing a shutdown condition.
Monitor Mike

Aug 17, 2010 | Computers & Internet

1 Answer

Monitor flickers and goes blank after 5 seconds and keep repeating this very often.


Hello,

If you turn the monitor off then about 1020 sec turn it back on and have a picture for five sec again it sound like the power supply in the monitor. but if that did not solve the problem, the picture board on your monitor is bad, since it goes off after few seconds and the power led or button is on, it means the picture board of your monitor has developed fault and will need to be replace.

I advice you replace the picture board on the screen of your monitor to solve the problem of the blank screen.

Take care.

Jul 26, 2010 | Acer AL2016W 20" LCD Monitor

1 Answer

Screen goes blank when first turned on, have to keep restarting m


Hello,

If you turn the monitor off then about 1020 sec turn it back on and have a picture for five sec again it sound like the power supply in the monitor. but if that did not solve the problem, the picture board on your monitor is bad, since it goes off after few seconds and the power led or button is on, it means the picture board of your monitor has developed fault and will need to be replace.

I advice you replace the picture board on the screen of your monitor to solve the problem of the blank screen.

Take care.

Jul 24, 2010 | Dell E153FP 15" LCD Monitor

1 Answer

Monitor goes dark 2-3 sec after power up, green lite stays on


Look for shorted out transistors (four, c5706/5707) in the inverter backlight transformer driving circuits.

Jan 21, 2010 | Dell E153FP 15" LCD Monitor

1 Answer

Comes on for 30 sec. goes black


If you can make out a faint image then the fault is a backlight problem.
The fault could be an inverter board or the CCFL lamp/s
For service, parts and DIY info check out LCD Parts - click on this link to their WEB site : -
www.lcdparts.net

Oct 19, 2009 | Sceptre X20g-Naga III 20.1" LCD Monitor

3 Answers

X20G-Naga III screen goes blank after 1-2 secs


FIXED!
Device : Spectra X20WG-Naga
Problem : monitor comes on then flickers then goes off
solution: Replace Capacitor C101 (150uf, 35V) and Fets U101 and U102 (4511GM)
Comments: This is a common problem with this monitor.

Oct 02, 2008 | Sceptre X20g-Naga III 20.1" LCD Monitor

1 Answer

Dell LCD E207WFP (Switches on Briefly then goes Off)


two case trouble reason and need to do:
1) back light driver (inverter) works not stable and DC power protect. it near some component damage, should repair inverter by egineer.
2) back light (lamp) over life cycle so protect by the inverter, should change new lamp (regular parts)
3) DC power supply not stable or component over life( wave filter capacitor), should be replaced

Aug 03, 2008 | Dell E207WFP LCD Monitor

2 Answers

Monitor problem


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.

Jan 18, 2008 | AOC LM729 17" LCD Monitor

1 Answer

Proview Pl926wbi


This is an inverter board problem. The inverter supplies the high voltage and frequency to run the CCFL backlights. The board has a sensing circuit to shut down the output if too much current is going to the backlights or it will shut down if the transistors overheat. I have replaced transistors on some boards with higher rated transistors and they have worked great for years. Sometimes it is just a cold solder joint on the inverter board. Replacement boards are expensive but not too difficult to replace. Repair requires some ability with electronic boards and should not be attempted if you do not posess the skill. You could end up damging other parts that cost more.

Jan 18, 2008 | Proview PL926WBi 19" LCD Monitor

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