[E442] Win7 - Blinking screen with Fn+F6

vduvernet
vduvernet Member Posts: 5 New User
edited March 2023 in 2015 Archives

Hi,

 

I have a notebook with a strange behaviour under Win 7 x64 Home Fr.

External screen is working but not the main screen.

When I press Fn + F6, I see a very short time the main screen powering on and then get off.

Video adapter is ATI Mobility Radeon H4200 Series. (driver is 8.970.100.1100 - 24/04/2013)

 

I've installed AMD auto detect to update to this driver.

 

When I press Fn + F5, I see on the external screen which mode it will use (clone, duplicate...). But still can't get main screen 'on'. The auto detect define main screen has unknown.

 

Any idea ?

 

Thanks,

 

Vincent

Best Answer

  • IronFly
    IronFly ACE Posts: 18,413 Trailblazer
    Answer ✓

    check one last thing, use a tochlight and point it to your laptop monitor (only with laptop monitor working), can you see something?

     

    if not, or your monitor is completly dead, or the monitor cable is disconnected inside the laptop.

    I'm not an Acer employee.

Answers

  • IronFly
    IronFly ACE Posts: 18,413 Trailblazer

    when you boot, do you see splash screen logo or BIOS or the screen is still black (using only laptop monitor)?

    I'm not an Acer employee.
  • vduvernet
    vduvernet Member Posts: 5 New User

    Nothing at all with only main screen.

     

    If I use the external monitor, I have all on external monitor (BIOS & Windows)

  • IronFly
    IronFly ACE Posts: 18,413 Trailblazer
    Answer ✓

    check one last thing, use a tochlight and point it to your laptop monitor (only with laptop monitor working), can you see something?

     

    if not, or your monitor is completly dead, or the monitor cable is disconnected inside the laptop.

    I'm not an Acer employee.
  • vduvernet
    vduvernet Member Posts: 5 New User

    You're right. Screen is dead.

    Fn +F6 just boost the screen brightness for a few milliseconds.

    Using torch, I see the desktop behind.

  • IronFly
    IronFly ACE Posts: 18,413 Trailblazer

    if you see the desktop behind, you need a new inverter for your monitor.

     

    let me ask help for the part number to Laurent14.

    I'm not an Acer employee.
  • laurent_14
    laurent_14 ACE Posts: 10,314 Trailblazer

    Hello Vincent,

     

    I need additional informations to help you:

    1. What model do you own exactly?

    2. Could you give me the first ten characters of the computer serial number (S/N)? Only the first ten.

    French message:

    Spoiler
    Juste pour info:
    Bonjour Vincent,
    Comment avez-vous trouvé le lien de la communauté?
    Il n'est pas indiqué sur le site d'Acer France.
    Merci,
    Laurent
    France
  • vduvernet
    vduvernet Member Posts: 5 New User

    Hi,

     

    here it is :

    LXNB702011032193------

    E442-142G25Mnkk

    MFG date : 1008

    SNID : 03210318616

  • laurent_14
    laurent_14 ACE Posts: 10,314 Trailblazer

    Hello Vincent,

     

    Unfortunately the inverter is fixed behind the LCD panel. You have to replace this one.

    Here is an original LCD panel with the inverter:

    LG LP156WH4-TLN2

     

     

    Remark:

    Your laptop is an eMachines E442-142G25Mnkk.

    France
  • vduvernet
    vduvernet Member Posts: 5 New User

    Ok.

     

    many thanks for all the help Smiley Happy

     

    Vincent

  • emaazain
    emaazain Member Posts: 1 New User
    Hi,  my notebook is act strangely.  i can turn on the notebook but there's nothing shows at the display it only blink for about 1 second and then stop . any solution please ? 

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