Help repairing panasonic vertical line fault

Collapse
X
Collapse
+ More Options
Posts
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Skava94820
    New Member
    • Jul 2014
    • 5
    • Uk
    #1

    Help repairing panasonic vertical line fault

    Hi guys, can someone please help? I have a panasonic TH-42PX60B that has developed this fault it's a black/white band at the left hand side of the screen. After reading toms very detailed post I decided that the buffer or connection was faulty, I cleaned the ribbon connector to no avail. I decided to replace the buffer and have just finished installing it. I have the exact same problem with the new buffer, when I power the tv up with the ribbon disconnected the vertical line has colour to it like this this is sensitive to movement of the tv and if I tap the top gently the colour will go and a complete white band appears. With the ribbon replaced the sensitivity completely disappears.
    Is this repairable or is it time to chuck the towel in a buy a new tv?
    Attached Files
    Last edited by Skava94820; 07-23-2014, 04:05 PM. Reason: Model left of thread title
    Tags: None
    • Skava94820
      New Member
      • Jul 2014
      • 5
      • Uk
      #2
      Re: Help repairing panasonic vertical line fault

      Sorry guys struggling with the pic attachments the white box at the bottom of the screen is actually blue and is a tv listing so that's not the issue
      Attached Files

        Comment

        • Skava94820
          New Member
          • Jul 2014
          • 5
          • Uk
          #3
          Re: Help repairing panasonic vertical line fault

          any ideas guys?

            Comment

            • Alastair E
              Chief Womble
              • Mar 2013
              • 1963
              • U.K.
              #4
              Re: Help repairing panasonic vertical line fault

              Vertical issues that are stationary like this with changing picture content are usually the COF chips or the panel itself on Pans Ive found.

              Scrapped more pans with that fault than anything else....
              Did three in one day once!
              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!

                Comment

                Previous template Next

                Related Topics

                Collapse
                • howardc64
                  A1312 (27” iMac 2009-2011) A1407 (Thunderbolt Display) A1316 (Cinema Display) Display Black Screen Repair
                  by howardc64
                  Problem

                  This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached....
                  08-04-2024, 10:36 PM
                • TrueSword88
                  Kogan - KALED65XU9220STB - Blue Vertical Line
                  by TrueSword88
                  Hi all.

                  I have a Kogan 65' LCD Panel with a thin blue vertical line (top to bottom) on left hand side of panel.
                  The line just happens to coincide with the end of COF and start of the next COF (attached).

                  The line is permanent no matter what I've tried. I've tried pressure testing the panel (top to bottom) and all over, I didn't notice any difference with the line, either temporary or semi-permanent.

                  Also tried unplugging all flex cables, cleaned with isopropyl then re-inserting to no avail - line remains.


                  Hoping to fix...
                  05-05-2023, 04:28 PM
                • Rictech
                  Panasonic SA-MAX770PU SMPSU board fault....
                  by Rictech
                  Hello everyone. 😀

                  As per thread title, this unit has a serious SMPSU fault. It blows F1001, which is a 10A M205 in the phase from the mains input.
                  Very first thing I tried, was simply replacing the fuse, but the replacement ceramic fuse blew immediately.

                  Looking at the schematic for this PSU, I then removed what I thought was the next likely candidate: D1001 - the HV main bridge rectifier.
                  This isolated the fault(no longer blows the main fuse), but does not point me to the actual fault.
                  There are no devices that have exploded or otherwise show signs...
                  08-26-2024, 01:05 AM
                • almarhum
                  To fix laptop screen vertical line by working on its EDP cable
                  by almarhum
                  Has one here really gone through fixing laptop screen vertical line(s) by repairing/replacing its Embedded DisplayPort (EDP) cable, so would recount and share the complete steps of the process here now?

                  As most, if not all, believe the laptop screen vertical line(s) caused by defective Embedded DisplayPort (EDP) cable which slipped and passed through either laptop screen hinge but post here is asking help to elaborate definitively the useful, real knowledge of repairing in the most complete, correct way, esp. can decide/determine whether the cable can still be fixed or must be re...
                  05-07-2024, 02:12 PM
                • mrsith
                  Samsung UE58TU7100K - no picture, vertical line
                  by mrsith
                  Hi.

                  Got UE58TU7100K with no picture - backlight comes on though. Figured out that's a perfect candidate for cut tape method.

                  This model has just one LVDS tape coming off main board - and two panel boards underneath the LCD screen are connected to each other via small tape. Like curved screens. I've tried to disconnect half of the screen (5he side without LVDS connector on it, obviously), no joy.

                  Disconnected the tape (main board side). Applied a small piece of tape, covering first ~4-5 pins. Powered the TV on - got picture. In negative, but that's...
                  02-07-2023, 11:18 AM
                • Loading...
                • No more items.
                Working...