Question about BenQ FP91G+ 19" LCD Monitor

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Black screen no picture

I had the computer on as usual and after halh hour sleep mode the screen was black and the power on hecked all connectionsand they were okay
what is wrong?

cornelius

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Your inverter has died and is a very common fault with all LCD monitors. The inverter powers the lights that sit behind the screen so you can see what is happening. So no lights, no picture.
Shining a bright torch at an angle from the top you will be able to see the image on screen, but very feintly.
This is something your local TV repair shop will be able to take care of fairly cheaply. It's not a good idea to play around in these types of monitors unless you have some understanding of what lay ahead.

Let me know if I can help further.

Posted on Apr 09, 2008

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Posted on Jan 02, 2017

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The monitor will go into sleep mode, and when first booted up will not register anything and goes to sleep. Have tried re-booting, checking the chords, plugging and unplugging them in. To no avail it...


No pc stated just monitor. (not even desktop or laptop) stated.
no OS stated, ether.
so ill answer in wide generic ways....
all computer are a problem, since days of Mr. Allen Turning to now.
ive done 43years of them just puters.(and other big systems MIL)
no person on earth can answer that common question
gee no pc stated,! nor can we lay blame until its fixed can we. ever.

3+billions of transistors. mine here typing now.
4,800,000,000, and friends, lots of other things to fail even LCD
its not a toaster or 4 banger calculator, at all.
its COMPLEX but 1 of those 2 boxs or cable are bad. sure.
(viewed in the MACRO)

sleep? how do you know it is sleep.
the screen showed that. text said SPEEP?
is the screen totally dead. (that is not sleep if true)
is the screens OSD button dead?,
the only clue i have here is one word, REGISTER (good word just too few)
so the screen never ever shows any text or HP logo ever
booting with monitor on for 5min. power on PC, see words?
no text ever...so.

then push the monitors.
Select menu buttons on front of monitors. and the OSD pops does it , it must....!!! see image below (mine is Viewsonic, near new)

there are many simple tests here.
  • try you monitor on any other PC
  • or try you pc on any other monitor
easy no.?, just 1 or 2 tests and bam, who's bad.
called the process of elimination..
but OSD is first. no matter what,.

if the screen tests ok,, (display tests and its buttons)
then the PC is problematic, (1/2 the battle won)
the first thing to do (tell me what pC) but turn off all sleep
modes in the CONTROL PANEL + POWER SETTINGS>
do that first. if you can even get the screen to work.

A pc never boots to sleep so.....
the PC can have 2 VGA jacks on the rear.
the PC can have DVI jacks, using those are you
try them all yet?
if you test the PC and it works and the screen works the cable is bad.


omg that screen is new, its even sold now at walmart.
not cheap either, too much, kinda
this is a modern 22" screen, LED>
and do not just go bad, is the power pack there and correct?
if the OSD screen is dead, check power first.

this is the Monitors brain, it works even with the PC dead.


the button is marked menu or select. this is test1.
osd-1z31dkbg41o2owghj0fas5br-1-0.jpg on my monitor ,heck all 2004 up
it tells you SLeep mode when the PC goes to sleep mode
or shows Power saver mode. live on the screen.
screen power on first sure.

all ways to go black done here.
http://pcdied.com/black-screen.html

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candlelig840, Your "cold-cathode-fluorescent-lamp" back-lit lcd monitor may not be in sleep-mode!! However, it may be in "black screen" or "Blank n Black screen" mode. Spend an hour doing some reading in my fixya profile and read testimonials and follow the web links. Your monitor isn't any different than any other brand in it's basic design and operation!!! Again, read my and other LCD monitor tech's ("budmrtn" , "buddymc" ) for information on doing your own repair or to find out all your options you have when dealing with CCFL back-lit LCD panel that is now black and lifeless!! If you live in or near a large (>2 million) city, give a call to local TV/lcd repair shop and question them about black screen and what is the top cause of lcd monitor/ lcd tv black screen failures. If you need further assistance after you research your monitor's problem do another comment here on fixya and we will be glad to help you. Do not rate this response. If you do, you will break the link and not have option to do further comments back to this posting. 12fixlouie

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