Question about MPC Computers AOC 7F 17" CRT Monitor

9 Answers

There is power but no display

Hi my computer is ok but am having problems with the monitor and the problem is that the monitors power is on but there is no display. the first time i noticed it, i tried turning it off and on agian and i came but the next day when turned on, there was no display, i've tried this for more than five times thinking it would come as it came the first time but to no avail. please help me. but can it be the cuase of a power failure? . because here in my country there is alot of electrical power failure.

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  • myhunt Nov 18, 2007

    no screen, just a floating box that says check signal cable

  • debbierey Dec 16, 2007

    How can I tell if my monitor is fried? It is a Hyundai L91A flat screen and the green light flashes on and off but there is no display, it doesny go on.

  • Paul McNally Dec 31, 2007

    Unit Samsung Syncmaster 741MP

    My screen also does not show a display, yet if I keep pressing the menu to seek another input the display will flash up for a couple of seconds and then go blank.

  • Anonymous Jan 03, 2008

    My LG Monitor (500g) display goes off during any operation and then then i hv to push on / off switch continuously to get back my display.. sometime its on and after couple of mintues later same thing happend again.. sometime i hv to keep the monitor for 2/3 hours to get back its display.. sometime this problem appear very frequently .i.e. between 10-5 mints.. sometime for a long period it doesnt create a problem say 3/4 hours... during display off time when i try the on/ off switch i heard a less tick sound and when i heard a big tick noise i know that display is going to back.. sorry for my worng english... If any one had same problem and solved the same.. then plz help me .. thanks in advance

  • Alanski Jan 07, 2008

    I have same problem as :myhunt" do.
    No display on the monitor.
    At first,the pilot light is green,
    then after a while it turned orange.
    What shall I do ?
    I've got blank display to work with.

  • scamb66 Feb 28, 2008

    I have 4 monitors all the same age (Oct06) which have all failed within 2 months of each other. If it is unplugged for a day or two it will fire up again. These monitors run 24 hours a day. When replaced with other monitors it is no problems.

  • Njso Feb 29, 2008

    Hi, I've got a ProView flat screen that became like that after a power surge.

    Basically, it turned on when I pushed the On button. Yellow LED switched to green. Then, after 2 or 3 seconds it went blank.



    So, suspected from the backlight inverter board: a Sampo QPWBGL8981DG PCB. Replaced the two 330pF / 3kV capacitors after the small transformers.

    I then thought I had repaired it for good.

    After switch ON, I can now get an image for 1 or 2 minutes. But then it goes blank (no image) again. LED keeps green. If I switch it OFF and ON again, image comes back on for a shorter time, say 5 seconds, and OFF it goes again. If I keep doing this Off and On switching, it keeps showing an image for 3 seconds each of the times. But I can't seem to keep the image on forever!

    Does anyone know what else could be damaged (besides the capacitors) on that Sampo Backlight inverter board?

    Regards,

    Njso

  • Redlizzie Mar 22, 2008

    My 17 inch Dell monitor powers up with no image. It flickers , but will not hold the image.

    We have suffered power outages and brown outs this winter. Is this repairable?
    It is not the video card as we have hooked up an old monitor.

  • Anonymous Mar 26, 2008

    aoc crt monitor


  • matsrul Apr 28, 2008

    power is ok but no display on the screen

  • dipankarbd Jun 17, 2008

    Hi,

    I have the same problem. Some times display comes. ut it is uncertain.


  • Anonymous Sep 30, 2008

    Monitor power green light is on and monitor is connected to computer but iam geting no picture.

  • midnightmayf Jan 16, 2009

    i am haveing the same problem monitoris on but the screen is black and i have a orange light. any info on how i can solve this. i have tried umplugging it and pluggingit backin,themonitor is only 2 months old

  • Anonymous Jan 26, 2009

    I've had my monitor for a couple of years, and today, after I turned on the PC< the screen went blank. Recycling power, the display would return, but only for a second before going blank again. Problem remained after several iterations of this.




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9 Answers

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Your symptom is commonly caused by failure if the inverter circuit. It is made by Sampo. The inverter powers the backlights. Replacing the inverter is the first step to resolve the problem.

Posted on Oct 11, 2006

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  • Monitor power green light is on and monitor is connected to computer but iam geting no picture. qasim972@yahoo.com

Posted on Mar 13, 2011

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If there is green light on monitor.so you just check the vga card and ram.First check both are placed in the slot correctly or not.if it is so then replace new one by one .then you can catch what is the problem.and can fix by urself.

Posted on Jun 04, 2010

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As one of my "initial things to do," I unplugged the monitor and then replugged it in and it did not fix anything.  Then after reading others' solutions, I unplugged the monitor and let it sit for about 15 minutes. Once I plugged it back in, it worked just fine. My setup is a laptop with docking station - the monitor in question is attached to the docking station as a dual-screen setup.  Though this may not matter technically, it might help those searching for solutions. Thx! Jake 

Posted on Feb 09, 2009

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Without much information given as to the state of the monitor - Check the LED on front. If Orange, it's getting power and the has a problem. It could be: Fuse Digital Board Power Supply If Green Check the Video Card on PC If None/Off (with unit unplugged) Sniff & Check the power supply board of the display. for Fuse and Visible damage.

Posted on Oct 13, 2006

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Try, if you can another monitor, if same problem, check graphics card connections(connection to your monitor) and if you are able re seat graphics card. If you have frequent power failures, you probably have power surges, this can be a problem as they can fry various components on the motherboard, check that you are getting 2 beeps from your pc when starting it up, if there isn't, your pc is not booting up and your monitor will probably display an orange light (stand by) instead of green.

Posted on Oct 10, 2006

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When i turn it on it doesnt have beeps and the monitor is LED is orange, and when i turn on computer and i try to turn it off it dosnt work, i need to swith off the power from the back of the monitor. anybody have a solution

Posted on Dec 22, 2012

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My AOC 17" monitor

during operational it will suddenly off but if i will top or move the monitor it will turns on

Posted on Apr 09, 2009

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I eventually contacted Samsung support and basically it is a component failure so a new unit was supplied under warranty. Unfortunately there was no software fix they had available.

Best Regards

Paul

Posted on Apr 14, 2009

4 Suggested Answers

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Posted on Jan 02, 2017

rosener
  • 103 Answers

SOURCE: Monitor not Display

Hi Rey,

Hope this helps you like what I did to resolve this kinda problem. If you can manage to open the chassis/cover check first if the HOT (horizontal output transistor) is good, if good check the SMPS (switching mode power supply) primary and secondary side if there are short filter capacitors, diodes, transistors and open resistors. Major faults to consider is by checking the load of SMPS, control circuit, driver circuit, feedback ckt.

Please let somebody to assist you (a certified technician) how to open the chassis safely due to electric shock. Please be guided accordingly.

Best regards,
Rosener Guyano

Posted on Jan 30, 2008

jemmyrash
  • 180 Answers

SOURCE: BenQ FP7IB LCD monitor, turn black aftr BenQ logo

Try to plug into another computer and wait to see.
If it turn up to be same it somewhere defect from the main board of the lcd.
If if not the same turn up to be, you should reinstall the OS because the software is corrupted or your display card problem.

Posted on Apr 21, 2008

pravinbhavsa
  • 348 Answers

SOURCE: panview 15" crt

yes first you open the monitor then take output of smps if present then turn the knob behind eht untill the brightness with picture will not come

Posted on Oct 30, 2008

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