Results 1 to 10 of 10

Thread: Faulty second hand LCD screen,, need help!

  1. #1
    Newbie
    Join Date
    Jun 2005
    Posts
    6

    Question Faulty second hand LCD screen,, need help!

    Hi,
    I recently bought a second hand in-car LCD screen. When I plug my dvd player, ps2 or digi cam in to it I get a picture but it scrolls up the screen giving an image not too unlike an untuned t.v. (the image is almost unrecognisable but definately there)

    I have taken the screen apart and checked most of the components inside with a multimeter, I have come across a Capaciitor ,labeled C61 on the circuit board, that gives a Over Load reading on the multimeter, i.e. it is not conducting, when tested both ways round as im not sure wether it is electrolytic or not.
    The writing on the Capacitor says 30J, 3KV but there is no fahrad reading.

    Do you have any idea how to calculate the fahrad reading? And could this be the source of my proplem?

    Im afraid I have no model number for the LCD screen but im pretty sure its not one of the main manufacturers as the screen or instruction booklet (which i have misplaced) do not have a company name on them .

    This is all the info I can provide :-

    Board labelled - T7O5 - 1BC (could be letter O or number 0 after the 7 it is not clear)

    Main Chip on
    circuit board

    Phillips
    P89C54UBA
    MD1B9138
    Aer0040
    (not sure of O's or zeros)
    This chip is probably used in many different screen but it may help.

    LCD I/P board
    Where signal
    From main baord
    Goes

    Sharp K2534TP
    N191CKA-A

    Code on LCD
    Inside case -

    LQO7OT5BGO1 12930279T

    (Again im not sure of O's or zeros, sorry)

    I may be able to get photos soon but none as yet sorry!
    Please help as this screen set me back near 100 so im kinda keen to get it working!!

  2. #2
    Variable Bitrate markland556's Avatar
    Join Date
    Jun 2005
    Location
    Bellevue, WA
    Posts
    225
    maby wrong region, it might be a NTSC TV and your sending PAL inputs to it???
    96' Mercedes Benz C36 -Matte Black-
    Status..::... {##------}25%~~ back to planning

  3. #3
    MySQL Error jcdillin's Avatar
    Join Date
    May 2003
    Location
    Miami, FL
    Posts
    4,043
    just touch your finger to that cap while the screen is running. You'll get a nice surprise


    but seriously, some pictures might help
    肚子笑痛了
    S60 Install

  4. #4
    FLAC Jahntassa's Avatar
    Join Date
    May 2005
    Location
    Conyers, GA
    Posts
    1,417
    Are the colors correct when you see it scrolling? The NTSC/PAL thing has me wondering too.

  5. #5
    Newbie
    Join Date
    Jun 2005
    Posts
    6

    pal/ntsc compatible

    When I had the booklet it stated that the screen was Pal/ntsc compatible and there is no option to cycle between the two so i guess it auto adjusts. There is colour but very very pale!

    I wil get some pics up tonight, where is the best place to host them??

    The menu comes up on the screen perfecty in colour and good res, so im guessing its something to do with how it is converting the i/p signal.

  6. #6
    Raw Wave
    Join Date
    Jun 2004
    Location
    On the beach
    Posts
    2,223
    Change the output on the motherboard between pal/ntsc and also the overlay type if it will let you, should work fine then.

  7. #7
    Newbie
    Join Date
    Jun 2005
    Posts
    6
    OK, ta much.. im no whizz kid on these things, So can u tell me how to do this as i cant spot anything obvious, sorry for bein a know nothing but hey u gotta start somewhere i guess!!

  8. #8
    Newbie
    Join Date
    Jun 2005
    Posts
    6
    Ok photos are now posted on
    http://uk.pg.photos.yahoo.com/ph/bud...bum?.dir=/e9b2
    If you need any others of different parts then I can do that as i have my camera back!

  9. #9
    Newbie
    Join Date
    Jun 2005
    Posts
    6
    Sorry im not sure whether that photo link works, if not try http://uk.briefcase.yahoo.com/buddy_jesus101 if you zoom in on the images they are clearer!
    Or this may work better lol.. ahhhh yahoo is confusing me, looks like this is the one though (-:
    http://uk.pg.photos.yahoo.com/ph/bud.../ph//my_photos

  10. #10
    Newbie
    Join Date
    Jun 2005
    Posts
    6
    Guys??? ent had a reply in a while, i was just wondering how to switch from NTSC - PAL at the motherboard.. pics are now posted if this helps!!! sorry for the impatience but im goin on hol soon and wud like it for that!! ta much

Similar Threads

  1. Anyone care to help me with a mystery screen?
    By Rover_Eli in forum LCD/Display
    Replies: 34
    Last Post: 03-27-2007, 07:34 PM
  2. Replies: 4
    Last Post: 01-29-2005, 06:35 PM
  3. Replies: 5
    Last Post: 04-30-2004, 11:25 AM
  4. BMW pre-installed system - TFT ?
    By tsingsu in forum LCD/Display
    Replies: 11
    Last Post: 08-05-2002, 02:16 AM
  5. NEC Versa M/75 Laptop TFT screen w/touch
    By Macgyver777 in forum LCD/Display
    Replies: 23
    Last Post: 03-24-2002, 02:14 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •