BenQ FP567s 15" LCD Monitor Logo

Question about BenQ FP567s 15" LCD Monitor

3 Answers

Screen blacking in and out

My screen is blacking in and out. The green monitor light also flickers on and off as the monitor briefly shows the screen. Have tried it on a diff pc with same results. In fact just plugging the monitor to electricity results in the green monitor light flashin on and off. Monitor is only 3 years old so I am surprised if it the monitor that has gone. Any suggestions please ?

Posted by Steven Deutsch on

  • 1 more comment 
  • karimmkd Dec 13, 2007

    My Benq fp567s switch on and off, each times I turn on my pc. The blue light turn to yellow without stopping. There is not time for the image on my screen to appear when it switch repeatedly on and off, it appears like some slow flashes. PLease help me. My monitor is only 2 years old.

  • jidamica Apr 20, 2008

    I am having the black in an out problem also. It happens each time I turn the computer on. I turn the green light on and off, up to 20 or so times, then eventually get in. Most annoying!

  • mctelng07 Aug 08, 2008

    The monitor screen flickers and the power tuning on and off.




3 Answers


  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert whose answer got voted for 20 times.

  • Expert
  • 159 Answers

Monitor going black after a few seconds can be causd by a faulty power supply or inverter. Some monitors have both as one unit.
Sometimes it is basic failed capacitors, After that then I would look at transistors.
The average monitor from 17 to 20 and sometimes the 22s have usually 4 bulbs in them. One bad bulb will also cause the inverter to not fire up.
Bad bulbs usually show pinkish tint, or flickering or are dark at center top or bottom of the display.
ebays bammbammfran

Posted on Oct 05, 2008



  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have Benque FP567s 4 year old now, i just have image for around 1 second and then i just get a black screen, the power led also goes off, and each time the i hit the power button, the problem repeats. But when I pull the power cord this side & other side many times the monitor works normal , but the proble may repeat in hours or next startup (It was also checked & found there is no problem in power cord or its fitment )

Soln: From above symptoms I suspected some loose connection on PCB of LCD. I have opened the casing. I found one screw is missing out of two, which hold power socket to chassis.

From this I have analyzed that probably due to this screw missing (manufacturing defect), some force of fitting cord into this socket was transferring , especially when removing , fitting back monitor cord into the socket during last 4 years.This might have resulted in ing of PCB or Power socket solder or some weak solder . Due to this, when we move power cord to fro, probably the above problem is disappearing temporarily.

I dismantled the 2PCBs (both boards are interconnected) and inspected. There was no , but I suspect soldering of L563 & power socket connections weak/ suspect able.

I soldered above joints & nearby joints (probably 5 % of total joints on main board).

The problem is solved on 31.01.08. Time taken for analysis : few minutes

Decision for opening by self : 2 days

Duration of repair : 1hr 15 min.

Damage: while opening of external plastic casing, some plastic holders / clamps got broken, probably if casing is required to open next time, it will be easier. This may happen even with a good mechanic.

Care: to be opened in modular way, by plugging off connecters between one module to other. Assy is to be followed in reverse.

Posted on Jan 31, 2008



  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 624 Answers

Hi Esdee, Don't be too surprised if the monitor is having problems. The fact that it does the same thing on another PC is pretty good proof that is in fact the monitor. As far as what is going on the green power LED going on and off in conjunction with the blackouts indicates a power problem to me. - Does wiggling the power cords, plugs cause any change? - When the screen blacks out shine a flashlight on the screen and look to see if you can see any faint images. If you do then you have a backlight problem. If none of this works any further troubleshooting really requires some experience working around electronics and high voltage. Let us know how you want to proceed, as as always please don't forget to rate this posting.

Posted on Feb 06, 2007

Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:


Monitor intermittent power problem and horizontal green flickering lines

separate wiring. touching wires creates cross-talk of signals.

Monitor light flickers on orange never goes to green.

You are suggested to check if you serial cable is in fine condition and it properly pluged into the Monitor and VGA. and do also try changing the serial cable .

LG1719S blank screen but with a flicker

Its a problem with the lcd and the cost to replace the screen is more then the cost of getting a new monitor.


Monitor displays breifly then goes to blank screen

If tried the monitor on two other computers with the same result -- definitly your monitor is faulty. Take it to the repair shop. To make double sure, run your computer with another monitor. If everything is fine now; you can blame the monitor.

Black screen

Hey... friend,

It's seems your backlight inverter is burnt out...need to replaced a new inverter. Visit this site @ There's a replacement parts for your FP988D LCD. Have a nice day!

Dell Latitude cpx

Symptoms of a Bad Video Driver

Monitor Resolution issues:
screen flickers, screen is cloudy, screen shows horizontal lines, screen goes black, goes blank, goes into sleep mode, goes into power mode, size magnifies or reduces, video is jittery, fonts change, screensaver will not appear, cannot extend display on dual monitors.

Download it from here


Dell E151FPp LCD Monitor

Next time you reset, check both the monitor settings and your BIOS settings for wake up

Monitor went black

Same with mine a couple days ago. I've been told the contacts have oxidized and need to be cleaned. It was going to cost about $80 to fix and no guarantee how long it would last so I just bought a new monitor.

Blank screen

its cheap buy a good one!!!!!!


HI. I had the same problem with mine. It would flash the screen on for a split second and then turn black, the whole time the power light remained green. Upon opening up the case, I pulled the combo power supply board/inverter board out for inspection. I noticed one of the capacitors had a bulge on top indicating it was bad. It was the the 680uf 25v capacitor. I desoldered it, and soldered in the new one. After hooking everything back up, bingo!! Monitor now works perfectly. I couldn't find an exact match to the capacitance locally, but I had a 1000uf 35v cap in my utility box. It worked fine as a replacement. You can usually go within 30 percent of tolerance and be alright. Just don't go under on capacitance or voltage. I hope this helps.
Not finding what you are looking for?


Ask a Question

Usually answered in minutes!

Top BenQ Computers & Internet Experts


Level 3 Expert

13435 Answers

Joaquim Martins

Level 3 Expert

1128 Answers

Joseph Hoffmann

Level 3 Expert

1756 Answers

Are you a BenQ Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides