Question about BenQ FP731 17" LCD Monitor

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Power led flashing on dell E172FPB monitor

Thats it the power led flashes and thats all that happens no sign of the tubes lighting or trying to

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The fact this is a LCd or at least listed as a LCD there are a few porbable causes to a faulure,

1. Bent pins
2. Bad signal cable
3. Bad back light (take a flash light point it at the screen if you see the screen change the backlight)

4. Bad signal board (rare)

please do be considerate and check these things in the list please to leace postive feedback and ratings for any expert that tried to help you.

Btw, I’m available to help over the phone in case u need at

Posted on May 26, 2010


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Posted on Jan 02, 2017


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1 Answer

Dell monitor E173FP power led flashing green, no video

If the monitor power light is on or flashing, but nothing displays, borrow a monitor from a friend. If that works, your monitor needs replaced.

Mar 07, 2014 | Dell E173FP 17" LCD Monitor

1 Answer

The power light of my dell E172FPb monitor flashes and doesn't work anymore. Whats wrong?

dbeukeboom, Unit is OLD!!! Trade for new or try to refurbish(repair) the internal power supply(visit YOUTUBE for video clips) !!! The lcd panel is ok, it's the electronics that's bad!! After you do the YOUTUBE thing, then come back to fixya and read the fixya profiles of "budmrtn" "buddymc" "12fixlouie" and all the other tech's that already know what you should know. 12fixlouie

Sep 20, 2010 | Dell E172FP 17" LCD Flat Panel Monitor

1 Answer

The DELL E172FPb LCD Monitor (switch light flicks green)scr black

hi, extremely common problem for dell 17 in monitors. the capacitors and transistors on the power board internally have gone bad. to get repaired, it may cost 40-50 at a shop. i have repaired these in the past and they always come out well for at least 3 more years. may want to find another monitor though. if you would like steps on how to repair, let me know and i will find my old repair threads to give to you.

May 12, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

The DELL E172FPb LCD Monitor (switch light flicks green)scr black

You need to open it up and inspect the componente inside, look at the fuse and the transistors in the inverter circuits first, also look for sign of over heating on the board, see pictures here for the guide:

Mar 20, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

My monitor keeps going into power save mode


Its not power saver mode, when the display goes black and the power light starts flashing that is a good indication that the power supply is about to die. The Dell E172 monitors are noted for this problem. We have step by step repair guides posted on our web site at: Click on the monitor repair link. The Dell E172 series actually has several sub models, check your specific model, the sticker on the back will have either E172FPb, E172FPc, E172FPf. We have guides for all 3 versions posted.

I hope this helps, if so please rate our solution.

Corporate Computer

Dec 30, 2009 | Dell E172FP 17" LCD Flat Panel Monitor

1 Answer

I have a Dell E172fPB LCD Monitor that comes on and I can see my desktop for a split second then the green light flashes about once a second or two, and the screen flashes very briefly with the green power...

phil_bischof, Not many sub's for it!! Because the package not standard "TO220AB" It is TO220FP package device. You can try for this part number: MBRF20200CTGOS-ND and ask them if you really need to buy 10 of them for $27.88 or will they sell you only 1 for $2.80 + shipping? Have you determined cause of rectifier failure? Good luck, guy. 12fixlouie

Dec 17, 2009 | Dell E172FP 17" LCD Flat Panel Monitor

2 Answers

I have a Dell monitor modle # E172FPb . I won't come on and the power light is now flashing on and off . I thought it was the switch, but that doesn't seem to be it


The problem with your monitor is the power supply board. If you go to our web site at: and click on the monitor repair link we have a step by step repair guide to your monitor. If you can solder then you should be able to do the repair yourself. If you don't want to do the repair we do offer a repair service, the repair for the Dell E172FPb unit runs $30 plus return shipping. If you have any other questions please contact us.

I hope this helps, if so please rate our solution.

Corporate Computer

Dec 03, 2009 | Computers & Internet

1 Answer

Dell E172FPb monitor black screen green flashing power button


We have a dis-assebly and repair guide posted on our web site at:
The problem is usually the driver transistors, our guide shows where they are and what to replace to get your monitor back running again.

I hope this helps, If so please rate my solution.

Corporate Computer

Jul 30, 2009 | Dell E152FP 15" Flat Panel LCD Monitor

2 Answers


i had a similar issue with my dell E172FPB, I have never seen a E173FP but this link might help you

Oct 21, 2007 | Dell E173FP 17" LCD Monitor

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