Thursday, March 15, 2012

Troubleshooting a bad LCD TV display

Troubleshooting a bad LCD TV display - LCD Television








Troubleshooting a bad LCD TV display

www.tvrepairinfo.com LCD display problems are quite common. Sometimes a can of freeze spray can save your hours of unnecessary troubleshooting as shown in this video. The TV shown in this video is a Sony KDL32L4000
[Video Rating: 4 / 5[/random]

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25 comments:

  1. GrantsPassTVRepairsMarch 15, 2012 at 1:42 PM

    I suppose you could although I don't know if the residue from the air duster has more
    of a water content which might make it more conductive.

    ReplyDelete
  2. RejectedManiacMarch 15, 2012 at 2:09 PM

    Instead of buying a very expensive can of freeze spray can't you just turn the air duster can upside down and use it that way? It freezes things well.

    ReplyDelete
  3. MsLovelyStacyMarch 15, 2012 at 3:05 PM

    Creating a video response. PLEASE HELP!

    ReplyDelete
  4. GrantsPassTVRepairsMarch 15, 2012 at 3:54 PM

    I didn't fix it. The LCD display is bad. Some have jammed rubber between the frame and the display and had success.

    ReplyDelete
  5. brian gauthierMarch 15, 2012 at 4:41 PM

    i have the same issues with my kdl-32l4000 how exactly did you fix this issue so i can get my tv working right again

    ReplyDelete
  6. GrantsPassTVRepairsMarch 15, 2012 at 4:43 PM

    Your welcome.

    ReplyDelete
  7. fozzyozzy106March 15, 2012 at 4:54 PM

    thank u for this so much

    ReplyDelete
  8. GrantsPassTVRepairsMarch 15, 2012 at 5:25 PM

    No the tape carrier does not effect the sound. A shadow area could be from  a bad lamp, bad driver transistor on the inverter board, possibly a bad inverter transformer, or even the display itself could have a problem. If I saw the picture I might be able to tell you more.

    ReplyDelete
  9. shaunofeggMarch 15, 2012 at 6:14 PM

    Hi. I was given a nice Polaroid 32" LCD and all that was wrong was there was a shadow area that my son who gave me the set said was likely due to constant games usage. I had been told that it may be dust. After looking and finding nothing - Well ok for 2 mins then its a tartan pattern. Q: if it is the tape carrier connections at screen would this lose sound also?because if so will try to make a more pressured seal at edges. I wore grounding wristband and took care not to damage so is this it ?

    ReplyDelete
  10. GrantsPassTVRepairsMarch 15, 2012 at 6:17 PM

    This TV had a bad display. I didn't say I fixed it but some people jam rubber in between the frame and the display.

    ReplyDelete
  11. RejectedManiacMarch 15, 2012 at 6:57 PM

    I have this same exact tv. What did you do the permanently fix this ribbon problem?

    Thanks!

    ReplyDelete
  12. songreosmenepMarch 15, 2012 at 7:02 PM

    ok....Thanks....appreciate it.

    ReplyDelete
  13. GrantsPassTVRepairsMarch 15, 2012 at 7:10 PM

    In reply to your first question replace the burnt resistor. Regarding the thin black lines sounds like a bad display.

    ReplyDelete
  14. Ryuuken24March 15, 2012 at 7:58 PM

    What do you do when you have a resistor, which has been burned to a crisp, and the only way to fix the board is to have that resistor replaced? Also, black thin lines on a LCD monitor, is that a hardware fail or the screen has gone bad? Thanks!

    ReplyDelete
  15. GrantsPassTVRepairsMarch 15, 2012 at 8:16 PM

    Sorry but I don't have any idea other than what I showed in my video here.
    Matching symptoms to causes is still a challenge in spite of my experience.

    ReplyDelete
  16. songreosmenepMarch 15, 2012 at 8:51 PM

    Hi Grant, Great Video as usual people always appreciate the way and manner you usually present these Videos..Thumbs up! I have a question for you. My Sharp LC-26DV20U shows but the colours seems to bleeding or too high but in any way it just does not look good but it plays and operate very well otherwise....I have been trying to locate a symptom on-line that I could point you too but I have not located one yet. I hope it's not panel but I only wants to open it to change a bad board, advice?

    ReplyDelete
  17. krazor8March 15, 2012 at 9:11 PM

    just saved me allot of money on a new tcon... the fucked up thing.. sony wants 600 for the screen for this.. i only paid 340 for the tv new when it came out

    ReplyDelete
  18. TampatecMarch 15, 2012 at 9:15 PM

    thx for the quick reply

    ReplyDelete
  19. egaaaaay56March 15, 2012 at 9:46 PM

    good day sir, nice video... hope you can post more switch mode power supply repair videos...

    ReplyDelete
  20. GrantsPassTVRepairsMarch 15, 2012 at 10:19 PM

    I tried to use a heat gun and pressure with no luck. Some people have had success by installing rubber bushings between the frame and the display.

    ReplyDelete
  21. TampatecMarch 15, 2012 at 10:57 PM

    can a heat gun work to rebond the joints? or do you think it will cause more damage, i'm a subscriber.

    ReplyDelete
  22. TampatecMarch 15, 2012 at 11:04 PM

    Good job, is this Common for Sony LCD Panels? (I bet Eskimos never get this problem)

    ReplyDelete
  23. ArcadeGamesMarch 15, 2012 at 11:16 PM

    I actually used thermal pads to fix this problem like the ones you get off IC chips. They are soft and squishy and hold the connection in place very well. I did this on a 46 inch Samsung and has not reverted back since.

    ReplyDelete
  24. BugsWiselyMarch 16, 2012 at 12:14 AM

    Definitely a hardware issue. Have to rewire the switches. lol

    ReplyDelete
  25. GrantsPassTVRepairsMarch 16, 2012 at 12:54 AM

    I can't guess at what went wrong.

    ReplyDelete

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