Question about AOC LM729 17" LCD Monitor

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Monitor goes black

My HP Pavillion f1503 is about 5 years old. The screen just goes black, I turn if off using the button on the bottom, put it back on and then it goes black again. This morning, I put it on and have had it on for about 1 hour, I have not turned it off, by using the button just left it alone and now it is working. Before I buy another LCD please let me know what you think is wrong...the computer is about 2 years old and it is an ACER. I dont think it is the computer.

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  • BBzil Jul 30, 2008

    green ligth is still on whole the monitor is blank

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  • 293 Answers

Hi..there,
It's seems your backlight inverter are burnt out... It's time to replaced a new inverter or repaired it.

Posted on Oct 14, 2008

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Posted on Jan 02, 2017

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2 Answers

Hp pavillion screen is on but screen is dark and keyboard Num lock light is on


If it's a laptop, you can plug in a monitor to see if you can get a signal there. That might tell whether the problem is the graphics card or the screen. There's a Fn/Fkey combination that turns signal on to both monitors; you may need to press that combination to use the monitor.

Apr 16, 2018 | HP Computers & Internet

1 Answer

My HP Pavillion A220N desktop turns on but will not give me access to the monitor, mouse or keyboard


Demanding are you,? this IS NOT HP, nor is it in warranty after 15 years. wow.....
so there will no DEMANDS BY you, this is free helper here,
(like charity, mom says never bite the hand that feeds you remember? free hands, for sure)
see how far DEMANDS last at HP.
https://h30434.www3.hp.com/

tell me.. love to hear that. on TXT BLOG FIXYA.

a retired PC at HP, its OLD, super RETIRED .
https://support.hp.com/us-en/retired-products
no photos of switch how can we guess that?
i can not see what you see, lacking a photo.
do hot tell any poster not to guess, heck you never showed a photo or even told what OS is there, XP op sys?
the answers will be directly related to your poor inputs. in ALL CASES.
tell me does your doctor diagnose you in some silly text file?
NO.
Backup is your job, if not done by you and the HDD crashes
all is gone, unless one W8 -w10 and the cloud saved your bacon.

so far we know little
its PC a DESKTOP
it turns on ,
and screen turns on and never evens shows text message EVER?
NO MONITOR stated, maker or model ,must we guess that too?
if its modern and not some 1985 CRT, but LDC
2004 or newer, ? it will have OSD menu.
turn on the monitor, push select see that OSD menu the monitor brain shows. if not the monitor is dead.
'if the pC dies, monitor it , it tells you, NO SIG or other errors
does it?
if the monitor works (gee test on other PC????)
then the PC is bad.
easy no box 1 ok monitor box 2 bad. pC.
easy peasy.
if the PCs PSU is not dead.
and fans run the next things is BIOS
so now PC questrions
do the fans in the pC run? all of them????
do the key board lamps glow, as you toggle the caps /or numlock keys?
does the CD drive eject on button push,
no ,no,no, then the PSU is dead.
if the screen shows words of any kind
ever ,say so.
if the screen is black all the time use the OSD button
if dead the Monitor is dead.
no monitor stated.
if the screen shows text,. then tell what it says.
and we can work forward to the relic XP, OS.
16 years old that is and dead, support world wide.

Jul 05, 2017 | HP Pavilion Computers & Internet

1 Answer

Why does my HP vs17 monitor screen keep going to blank black screen like it turned off but did'nt.....blue power button light is still on? Everything is running but no picture.....keeps happening everytime...


this old monitor has 2 issues.
1: it has CCFL tubes that love to burn out (backlamps)
most this old are long go, yell,dim.,blinking or DEAD.
2: push the menu button on front of mon. turn off power saver.

3: if the PC goes to sleep, or hibernete mode (parked)
then that is 100% normal
if you dont like feature then go to windows control panel
click power, ICON and turn off all monitor sleep /hibernate modes.

that assumes windows, no OS stated.


if the lamps are dead,
use flash light pointed to sceen, see data. ? bingo for bad CCFT tubes.
as seen here

http://www.pcdied.com/monitors.html#flashlighttest

Jan 12, 2018 | HP Vs17 17" LCD Flat Panel Monitor

2 Answers

Hp pavillion laptop screen goes black


its the common problem with graphic card, if its nvedia chipset graphic, there is only one temp solution, ask any hardware machanics to put a glue and heat the display ic, then it would work for a week, in that period buy the amc from hp service centre, after a week if there is a prob, company will have to replacd the motherboard

Feb 10, 2010 | HP Pavilion dv6000t Notebook

1 Answer

HP Pavillion Entertainment computer (laptop)


now u put out to another monitor by cable if u see screen in there ur lcd have problem, if black too it from ur motherboard , checking

Jan 14, 2010 | Computers & Internet

1 Answer

Hp w2007 blank screen


we have here , like 1000s of black screens posted here now.
all the same all with CCFL lamps. that die. same solution.
older monitors have a power saver mode inside it,
push the front button called menu, then see OSD menu
then find and turn off power saver.
if the OSD fails to show up; the CCFL are dead.
this monitor was made in 2007, and 2010 is the starting year
for ending the usage of CCFL (starting on large screens working to small)

im reading your manual for you now, free.
page 4 tells you it has CCFT (T mean Tube, L means lamp)
same same.
https://www.manualslib.com/manual/1110533/Hp-W2007.html?page=4#manual

now lets look at the page on saver. power

page 7, (its on by default ) oops !
https://www.manualslib.com/manual/1110533/Hp-W2007.html?page=7#manual


turn saver OFF
see next page 8 and turn DDC ON.
see sleep timer and turn that all off.
if you push factory reset, it the problem begins again.
bad. for you.

https://www.manualslib.com/manual/1110533/Hp-https://www.manualslib.com/manual/1110533/Hp-W2007.html?page=8#manual

you can in fact download the whole manual.
for free. here. the site on the internet in this regard.

all old HP monitors are made for old PC 2000 year.
your PC is not 17 years old i bet.
so all this old saver stuff is now WRONG.
(all this is old school Energy Star , malarkey, )

Nov 13, 2017 | HP W2007 LCD Monitor

1 Answer

When energized, screen stays on for about two seconds then blanks


Hi...there,
Well, it's seems your monitor backlight inverter are bursted. Usually, the monitor had a 1 year for the screen panel and 3 years for parts and labors. You're still under warranty, send it back to manufacturer for repaired.

Nov 15, 2008 | Proview PL713S 17" Flat Panel LCD Monitor

1 Answer

HP F1903 monitor


sure the F1903
is a LCD monitor but is old , it has
and CCFL black lamp.
it has board inside that is the power supply /inverter
this board runs the lamps.
the lamps love to fail after 10 long year of service
so when monitor fails, push the menu botton on the front
is the OSD menu dead (monitor brains inside)???

see bottom of this page , see CCFL and PCB there?
if lamps bad replace them
if PCB bad replace it, seen sold on Ebay , vastly, there.

http://pcdied.com/black-screen.html#CCFL-examples


some of these old monitors.
have silly internal sleep mode,
turn that off. (push menu button on front)
see OSD (on screen,display menus)
see settings
see power saver mode, turn it OFF,

Jul 28, 2017 | HP Pavilion F1903 19" Flat Panel LCD...

1 Answer

Screen goes black


It could be a bad backlight bulb.

Sep 08, 2008 | HP vs15 15"LCD Flat Panel Monitor

1 Answer

Setting up a Compaq Presario 5000 tower and HP pavillion monitor


since your computer didnt recognize your monitor just add it manually ...if its an hp lcd screen hit the button above the power button on the monitor and it will auto adjust itself..if it still dont work go under control panel to monitors and add it.

Sep 01, 2008 | Compaq Presario 5000 PC Desktop

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