Question about BenQ FP71E 17" LCD Monitor

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Dell E173FP monitor

Hello, my monitor turns on, but video testing square is very dim and entire screen is shaking, unstable, I checked capacitors (1000uF/16V) they are looking fine, nothing looks wrong with it but it basically not working at all.
Please if you familiar with a such problem let me a clue how to fix it, what a problem it could be.
Thank you for yours help
Have a great day!

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Try plugged into another pc or changed a cables. Still the same problems...replaced all the 1000uf 16v caps it could be leaked. You can't tell by a naked eyes if it leaking... Have a nice day!

Posted on Oct 23, 2008


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Posted on Jan 02, 2017


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Dell monitor in power save mode. unable to get it out of mode. Tried every thing. monitor model e173fp

rtillett, May not be "power save" problem! Possible internal component failure causing "black screen of death" symptom. What is "date of manufacture" from rear of unit? Unit could be 4-5 years old. retrevo .com lists as time to retire and buy new. You should see some video clips at YOUTUBE that show DIY owners/technicians that successfully refurbish these e172, e173 displays to help you decide to spend $20 or trade for new $200 (new unit) wide screen display. Also spand some time reading and following links you find in the fixya profiles of "budmrtn" "buddymc" "12fixlouie" that will help you decide fate of your e173fp unit. Please rate this response AFTER you do your research here and at YOUTUBE. After you discover the common power supply capacitor failure problem that plagues the entire lcd monitor / tv industry you will then be in a much better position to make decision. 12fixlouie

Aug 17, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

Hello Sir, I am using DELL E173FP LCD monitor. My CPU absolutely fine I see initially booting thing on my monitor display then it gets black. I can hear starting sound of Windows XP, that too is fine. When...

You might need to change the screen refresh rate. Go do Control Panel> Display> Setting> Advance, choose 60 Hz. In order to make your Monitor able to display, restart the PC, press F8 on the keyboard frequently upon splashing ( 1 or 2 seconds after PC restarts). Select enable VGA mode by pressing up arrow of the keyboard> press enter. The display should look bigger, then you can start adjusting the screen refresh rate to 60 Hz

Apr 09, 2010 | Dell E173FP 17" LCD Monitor

2 Answers

The monitor gets dim as sson as it turns on. it

The problem is a back-light problem, it could be caused by a faulty inverter board or faulty CCFL lamp.
For service, parts and DIY info. check out LCD Parts WEB site, please click on this link :-

Feb 03, 2010 | Dell E173FP 17" LCD Monitor

1 Answer

Video displays momentarily when monitor is first turned on, then screen goes black. Problem repeats when monitor is turned off and then back on.


Check our web site at: We have step by step repair guides for each of the versions of the E173FP monitor.

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

Corporate Computer

Nov 23, 2009 | Dell E173FP 17" LCD Monitor

1 Answer

Dell Monitor Problems


It sounds like you have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of the monitor. If you are good at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work fine. The capacitors do need to be installed with the correct + and - connections, note the stripe on the old one and insert the new one the same way. If you don't want to try the repair yourself we offer a repair service for $35 plus shipping.

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

Corporate Computer
Over 21 years of computer and printer support/repair

Jul 17, 2009 | Dell E173FP 17" LCD Monitor

2 Answers

Fade light

That is either a defective controller board or a faulty LCD controller board.

Parts must be tested before replacement.

May 21, 2009 | Dell E173FP 17" LCD Monitor

1 Answer

Dell E173FP Screen blinking red, green, blue, white

The monitor is probably on protection.

To start unplug monitor from power and from computer and test computer with different monitor to find out if it is monitor or computer fault.

If it is computer fault and no video signal , then test:

  • Video cable.
  • Video adapter on PC (sometimes integrated on motherboard)
  • Motherboard.

If it is monitor fault , then the monitor is on protection.

When on protection you keep having a flashing led on front of the monitor , and monitor turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the Monitor goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or a broken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the monitor will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, faulty inverter board, faulty input board, or a fault on LCD Digital Controller board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.

Try moving the video cable, and if the cable is not built in, then also try a replacement cable.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Apr 16, 2009 | Dell E173FP 17" LCD Monitor

1 Answer

E172fpb monitor that turns on, but then goes dim

Your display have an inverter driver broken, So the back light can't turn on. Here is a website that shows this issue:

Good luck!

Feb 14, 2009 | Dell E173FP 17" LCD Monitor

1 Answer

Dell E172FPb screen blinking


If you've tested turning the monitor on without the VGA cable and it's still blinking I'd say there's a problem with one of the capacitors on the power supply card on your screen, when you're able to check it would you mind telling me the brand / reference of it ?

Nov 04, 2008 | Dell E173FP 17" LCD Monitor

1 Answer

Dell E173FP 17-inch Flat Panel Color LCD Monitor

The dell monitors are bad with capacitors going out, check caps in power supply and video board. You can use a can of freeze, it would be easier that way. Just be careful not to touch anything, because these monitors can shock easy.

Sep 06, 2006 | Dell E173FP 17" Flat Panel LCD Monitor

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