Announcement

Collapse
No announcement yet.

Weird faults caused by ribbon-connections--Have you had any?

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    Weird faults caused by ribbon-connections--Have you had any?

    I had a nice one just recently.

    A Philips 42PF5521 plasma. (Horrible sets, Never have a nice picture, always grainy and noisy)

    There was a vertical strip of the picture that was perfect--But completely reversed, left to right!

    Removing, cleaning and re-seating the ribbons from the Control-board to the bottom address boards cured the problem

    What weirdness have you found that was just a poor connection of a plug/ribbon etc....
    TELEFIX

    How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
    http://www.irf.com/technical-info/appnotes/an-1088.pdf
    PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!
    Tags: None
    #2
    Re: Weird faults caused by ribbon-connections--Have you had any?

    I had one where half the picture was crazy noisy, the other half was dead.
    On a Vestel Freeview board inside a TV, I had one that was working fine, but if you turned off the TV, it would lock up, Reseating the ribbon fixed that.
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

    Comment

      #3
      Re: Weird faults caused by ribbon-connections--Have you had any?

      Got a philips 40pfl4707 for cheap to work on and the person I got it from had replaced power board to get it running and then tried to get a remote to work with the unit. The IR board was replaced and did not help. Then the tv went dead again and he sold it to me. I get it home and and it worked great minus the remote. I thought , ok maybe the IR he got was bad so I got another. Still no remote. I checked out power and main board and reinstalled them and then I had a dead tv. It turned out to be the ribbon cable from main board to IR board. I guess just cheap cables. Got it running out in the garage and watch my golf on weekends. Great picture!

      Comment

        #4
        Re: Weird faults caused by ribbon-connections--Have you had any?

        I've got a 40PFL4707 that was dead, so I replaced the power supply that didn't fix it. I got the new one, that did not fix it so I checked the pins on the ribbon cable where it connects into the main. It had voltage on and on the board. So i ordered a main board and installed the damn thing still don't work. it. Does anybody have a schematic for this tv? I need to confirm the voltages going into the main, and from the main to the ir board. Any help would be greatly appreciated!

        Comment

        Previous template Next
        Working...
        X