Compaq Evo laptop LCD Screen issues

Discussion in 'Compaq' started by DCA, Nov 13, 2005.

  1. DCA

    DCA Guest

    Hi all
    I have an Evo N800V and it is very sick.

    Every alternate vertical line is dead and it has a blue tint to what's left
    and it is unusable at full native resolution
    The LCD is a 15" 1400x1050 part number 286871-001

    Having done a lot of research and substituting of parts, I have diagnosed it
    is the LCD signal cable (not the inverter one)
    The ribbon must have a break in it somewhere.

    Anyway, does anyone have a source for these. Compaq (HP) state it only ships
    as part of the LCD (which makes it uneconomical to fix)

    I think I can get hold of a multi-LCD ribbon pack but having given HP the
    part number, they say they can get it but cannot tell me what it is suitable
    for, or what models it is compatible with - it's just an anonymous part
    number it seems!

    Any advice gratefully accepted!

    David
     
    DCA, Nov 13, 2005
    #1
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  2. DCA

    Noel Guest



    Hi,

    I'm having the same problem, and since you are a bit ahead of me, mayb
    you've forund a resonable solution? I also think it a bit steep to spen
    450$ on a new LCD.

    regards,

    Noe
     
    Noel, Jan 23, 2006
    #2
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  3. DCA

    metronid Guest

    It is the ribbon
    There is no break in the ribbon
    The pressure connection is bad
     
    metronid, Jan 24, 2006
    #3
  4. DCA

    Noel Guest

    Thank you for your answer.

    -how do I fix that, is it a simple matter of securing something? An
    how do I do that.

    as you may guess, I'm not a computer technician, but I hav
    disassembled the laptop to verify the exact nature of the problem.

    Sp di I repalce something (less than the whole machine) or can I fi
    the connection you are talking about?

    Again, thanks for your help.
     
    Noel, Jan 24, 2006
    #4
  5. DCA

    metronid Guest

    The ribbon cable does this from opening and closing the
    case.
    It should not do this but it does
    You need to inspect the connection at reach side
    first and check the connection
    If they are a flat stick connection
    Try running your finger with firm pressure
     
    metronid, Jan 24, 2006
    #5
  6. DCA

    Noel Guest

    Right, I got that far. but, when I realease the pressure the screee
    goes back to "not-so-good".

    Is there some way of getting a permanent fix, other than mentione
    before
     
    Noel, Jan 24, 2006
    #6
  7. DCA

    metronid Guest

    Ok you know it is bad
    You are talking about the flat end
    I checked ou similar products and they are expensive for just the cable
    Do not know at this point
    Sometimes the pressure will fix it and sometimes not

    And it may not be the cable it could be where the cable attaches
    Most likely the ribbon cable but you never know

    There may be a fix
    I will ask my brother who is more experineced than me
     
    metronid, Jan 25, 2006
    #7
  8. DCA

    Noel Guest

    Thank you again.

    The problem of caourse originates in the fact that Compaq / hp, onl
    distributes a new LCD including cables, and thus it is not possible t
    get just the cable replaced. Sucks.

    looking forward to know if your brother has anyting to add...

    regards
     
    Noel, Jan 25, 2006
    #8
  9. DCA

    metronid Guest

    The Lcd screen and the cable come as one unit
    That is the way that compaq purchases the item
    Most screens of this type are manufactured this way

    Compaq does not manufacture that unit
    Neither do most companies Dell Gateway Etc
    They buy them as such from a 10 cent per hour work force

    If you had a proble with just the LCD there is
    and they made just the LCD
    What makes you think you can tack that connector back on
    This type of connector is not made to go off on on and back again after a
    few tries

    You would be compalianing that sold you a LCD and not the ribbon with it

    You would most likely be correct

    This is the way it is done with the overseas production

    Nothing is made here
    They even cut cost on the 10 cent work force
    It would be nice if they had decent connectors on each side


    America likes to buy things cheap

    We have no manufacturing base here
    GM FORD and Chrysler are hurting

    Everyone must have 3 cars in the driveway
    Both husband and wife must work to make ends meet
    We need the cell the cable the Sirius etc

    Being the liberals that many Americans are
    We must blame someone else
    It can not be our fault
    It must be someone else
    This is the typical American attitude

    I also fall in this group

    We allow the killing of the unborn
    Screem that it is cruel to give lethal injection to
    a murderer
    Like punishment was meant to be a nice thing


    We do not understand why 911 could happen again
    and meanwhile allow anyone to come over and through our borders

    Look on Ebay I am sure you will find your part


    Good luck


    > wrote in message
    news:...
     
    metronid, Jan 26, 2006
    #9
  10. DCA

    metronid Guest

    By the way
    My brother uses a hair dryer to heat the tacky end first
    if her has removed it
    If it is still intact he uses a blade a low power soldering gun (gently)
    The blade is used to absorb heat to make the tacky glue
    a little more piable and to apply pressure
     
    metronid, Jan 26, 2006
    #10
  11. DCA

    dexop Guest

    I have the same problem on my evo n800v... :crybaby:
    but the pressure tip didn't work for me
    is the problem on the connector side (in notebook) , or on the othe
    side of the flat cable (behind the display)

    thanks
     
    dexop, Feb 10, 2006
    #11
  12. DCA

    johnsondata Guest

    Good New

    I had the same problem and did some research. Here's what I came u
    with

    Firstly the screen type for the Eve N800v XSGA is part numbe
    286871-001. A google search found this on ebay in the UK

    I rang HP (Australia) to be told the same thing, that cables are no
    available separately and a new screen would be $160

    More searching revealed a part number 390436-001 for cables only
    I rang HP spares again and quoted the part number. Yes of course the
    can supply it. About 10 days delivery from Singapore. $95.00 Au e
    I asked them what description they had and would it fit an EVO

    Searching for this part number shows several suppliers in the US

    The only information they could give was the descriptio
    "SPS-CABLE KIT, LCD

    It was delivered yesterday. It includes three cables for severa
    different models of EVO. I beleive the one I will use is M15BR1.5
    will be installing it over the weekend

    There is a service guide on HP site which tells you how to disassembl
    up to removing the screen. Your on your own in pulling the scree
    apart to put the cable in. Just be patient and careful. Lots o
    little plastic clips. I use a jewellers screw driver and sharp knif
    (to get under the plastic clips

    Good Luc
     
    johnsondata, Feb 16, 2006
    #12
  13. DCA

    mazochungo Guest

    Hello there

    I bought a used Evo N800V laptop recently and found a very annoyin
    defect... The screen has got a vertical band where the image is no
    shown correctly, but "distorted". It doesn't seem to be
    problem of dead pixels (and the LCD panel itself doesn't seem to hav
    been hit). The problem is that the pixels in that vertical band ar
    continuously flickering and reflecting the image corresponding t
    other areas of the screen (like if it were a mirror). Please, have
    look at the following video (in DIVx format)

    http://www.mazochungo.net/lcd.av

    You can see that, as I move the little window, the reflects produce
    in the defective band change

    Here you have some static pictures where you can better distinguis
    the aspect of that vertical band

    http://www.mazochungo.net/lcd1.jp
    http://www.mazochungo.net/lcd2.jp
    http://www.mazochungo.net/lcd3.jp
    http://www.mazochungo.net/lcd4.jp

    However I'm not sure that my problem is exactly the same as yours..
    Do you think that in my case is also a problem of the video cable (H
    Part Number #390436-001) other than a problem of the LCD panel?

    Anyway, how do I access that cable (that is, how do I check that it i
    correctly connected and how do I try to apply pressure on it?). Is i
    necessary to remove the LCD panel? If so, is it similar to what i
    explained here?

    http://www.lcds4less.com/PDF/Laptop-LCD-Removal-Instructions.pd

    Thank you very much in advance
     
    mazochungo, Feb 28, 2006
    #13
  14. DCA

    mazochungo Guest

    I finally downloaded a "repair manual" PDF for this lapto
    and managed to open it and to access the video cable. When I appl
    some pressure to the end of the cable connected to the LCD pane
    itself (that is the flat end), the aspect of the vertical ban
    changes and the number of "reflects" decrease (I mean: th
    band becomes less noticeable). But when I stop applying pressure, th
    band goes back to its initial aspect (or even with more reflects).

    Does this mean that it is a problem of the video cable itself, instea
    of a problem of the LCD panel?

    I will keep trying...

    PS: Johnsondata, did you finally fix the problem by changing the cabl
    with the one you received from HP
     
    mazochungo, Feb 28, 2006
    #14
  15. DCA

    johnsondata Guest

    Hi mazochung

    Yes the cable from HP did fix my problems, which were genera
    degradation of screen resolution over the whole screen. It was lik
    whole vertical rows of pixels not working

    My cable was faulty where it goes around the hinge. ie where it has t
    flex or bend most often. By applying pressure at this point it woul
    come good

    Where the flat cable attaches to the back of the LCD, you should b
    able to disconnect. It has some tape holding it in place

    It does sound though, that it could be a problem with the screen

    The cable kit comes with 3 cables for 3 different models

    Mine was for the SXGA 15" LC
    there is one for XGA 15" LC
    and one for 14" LC

    regard
    Davi
     
    johnsondata, Mar 1, 2006
    #15
  16. DCA

    alanbold Guest

    Looks like i have the same problem, does anyone have a pdf of th
    service manual or point me to a link that will help me open up my ev
    N800 laptop
    Thank
     
    alanbold, Jul 5, 2006
    #16
  17. DCA

    spalm Guest

    I also have the same problem with both the N800v and N800c.
    Currently have about 5 to repair. Can you tell me where to purchase
    the PN 390436-001 cable kit for AU$95 as I can only find it for over
    $150
     
    spalm, Apr 21, 2007
    #17
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