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Benq7t3 no back light problems

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Re: benq7t3

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Posted on Dec 12, 2007

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I have a hannsg hg216d monitor and i cannot veiw the right hand side i have tried everything to cure this problem but cannot solve it

Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Jul 01, 2016 | Hannspree 22" Lcd Monitor Hanns.g Hg216d...

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LP3065 top arrea darker - backlight defect?

what you can do is to remove the back cover to access the inverter board. probably the cause of the smell is burned inverter board for the screen back light ( ccfl ) at the upper portion of the can find the inverter board near the power supply board. usually you will replaced the inverter board since most of the part get fried as will as the pcb pattern circuit board get burnt.hope this can help good luck.

Nov 08, 2012 | Computer Monitors

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It is 7x3cm big, and its like dark green with bright green lines. I can see underneath it my screen, but only if i look deep.

if you can hooked up with other monitor just to ensure if the problem is only with in the monitor. after you replaced with other monitor then the display is clear or good picture, that was mean the only problem is the monitor. if the upper portion is black screen or the picture not so clear the cause is busted screen back light. to see the back light you will need to remove the back cover of the monitor. then the back light is a thin cold cathode flourescent tube, it was covered with a metal shield cover protection attached at the upper portion of the screen panel display.

Nov 08, 2012 | Samsung SyncMaster 913V 19" Flat Panel LCD...

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Back light problem

Back light problem on what

Sep 30, 2012 | Acer AL Computer Monitors

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I have 2 of these monitors with the same problem. On power up the green led will light & remain on but the screen remains black. On one of the monitors the screen will light up for a few seconds then...

The inverter that turns on the back light may be bad - it's suppose to create the high voltage pulses to fire the CCFL back light lamps. Apparently the back light turns on after a few seconds however, it cannot stay on because the inverter might be bad. If you connect a known external CCFL lamp to the to the inverter output you can isolate the inverter.

Dec 26, 2010 | NEC MultiSync LCD2010 20.1" LCD Monitor

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I have a Gateway HD Monitor Model 2100. The screen flickers and turns off. I can cycles the button and it comes back on, only to flicker and turn off later.

Either you have a problem with the back light or inverter.
When you disconnect the unit from its signal connection, you should see no signal input message.
If the unit flickers and then go out, while disconnected, you can rule out the video card and assume it is the back lights or inverter.
90% of the time, it is the back lights.

Nov 24, 2009 | Gateway FPD2275W LCD Monitor

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Dell E172fp

Replacing the back light?

Are you sure that is the problem?

I didn't see any display with a broken back light. It's more likely the inverter driver is the issue. A back light is assembled with the display and it's really difficult to replace it.

If you confirm that is the inverter the problem, here is a link that explain how to fix it:

Good luck

Feb 27, 2009 | Dell E172FP 17" LCD Flat Panel Monitor

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ACER AL1715 PowerLed blinking only,no picture,flash about .5secs

This sounds as if you are using the hibernate feature in windows reboot it and reset the power options to hibernate never check the vid connection as well

Dec 19, 2008 | Acer AL1715 17" LCD Monitor

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You might have a problem with inverter board in your LCD monitor.
Defective back-light bulb can cause that problem to. Usually you would see some discoloration in the area of your bulb.

Good luck

Jun 02, 2008 | Dell E172FP 17" LCD Flat Panel Monitor

2 Answers


jaki powinien byc ncp1200 (40,60 czy 100 Mhz)

Nov 20, 2007 | Gateway FPD 1730 17 in. Flat Panel LCD...

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