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Any Plasma TV Experts Here? — Parallax Forums

Any Plasma TV Experts Here?

NWCCTVNWCCTV Posts: 3,629
edited 2013-01-08 13:44 in General Discussion
So, I was sitting here watching my 50" Toshiba Plasma TV when I hear a loud pop sound and then my picture was gone. It almost sounded like a cap blew or something. I still have power and sound but no picture and the menu will not come up either. So, if anyone has any experience with this type of issue please advise. I will pull it off the wall tomorrow and see if I can find what blew but thought I would see if anyone else ever had this issue and whether or not it is an easy fix.

Comments

  • RobotWorkshopRobotWorkshop Posts: 2,307
    edited 2013-01-04 21:33
    Since there are probably a lot of different variations I would start searching on the exact model # of your TV. You may get lucky if it is a common problem. That helped me fix an old TV and we got a couple more years out of it.
  • kwinnkwinn Posts: 8,697
    edited 2013-01-04 21:35
    It does sound like a blown capacitor. Look for swollen caps or discolored components and circuit board areas. Might be the power supply for the plasma screen.
  • frank freedmanfrank freedman Posts: 1,983
    edited 2013-01-04 21:46
    Not sure how similar these are to lcd, but if it is not warranty eligible you have nothing to loose by opening it up. I would go on your original assesment of a cap blowing. Given what i have experienced with video cards and similar cap failures (google for electrolytic cap failures), you may get lucky if nothing else was damaged. Open, test all power supplies and driver ckts if any. Google is your friend for locating service info on these units close may be good enough as most of these types of devices are just variations on a theme.

    Good luck

    Frank

    NWCCTV wrote: »
    So, I was sitting here watching my 50" Toshiba Plasma TV when I hear a loud pop sound and then my picture was gone. It almost sounded like a cap blew or something. I still have power and sound but no picture and the menu will not come up either. So, if anyone has any experience with this type of issue please advise. I will pull it off the wall tomorrow and see if I can find what blew but thought I would see if anyone else ever had this issue and whether or not it is an easy fix.
  • davejamesdavejames Posts: 4,047
    edited 2013-01-04 22:19
    NWCCT - after sniffin' about the InterWeb, I found this:

    http://blog.coppelltvrepair.com/2012/01/toshiba-50hp66-50-plasma-loud-pop.html
  • NWCCTVNWCCTV Posts: 3,629
    edited 2013-01-05 16:59
    @davejames, Thanks for this. The first one in the link is my exact TV. I may try to fix it myself. In the mean time, I have been wanting a 60" TV and now may be able to convince the wife it is worth it!!!!
  • davejamesdavejames Posts: 4,047
    edited 2013-01-05 18:10
    ...welcome! Lemme know if you fix it.

    :thumb:

    I've saved up enough airline miles that I could wrangle a 72" plasma...but, you know...I just don't find much to watch any more.
  • kwinnkwinn Posts: 8,697
    edited 2013-01-05 18:19
    davejames wrote: »
    ...welcome! Lemme know if you fix it.

    :thumb:

    I've saved up enough airline miles that I could wrangle a 72" plasma...but, you know...I just don't find much to watch any more.

    I know what you mean. I finally broke down and bought one a few months back after going without for almost 2 years. It might be on for all of 2 hours a week.
  • frank freedmanfrank freedman Posts: 1,983
    edited 2013-01-07 17:35
    Funny this thread was here. Guess timing is everything. Went to goodwill today to see if they had any combo dvd/vcr (yeah, old stuff but the kiddo likes his and it died this weekend). Figured that goodwill would be about the only hope. They had one, only one and near perfect shape. 18 bucks Happy kiddo. Then saw an Akai 42 in plasma tv for a buck. Hey, if i csn reasonably fix it great, else I'll figure a way so that if it goes out for bulk collection everything goes with it st once........

    FF
  • frank freedmanfrank freedman Posts: 1,983
    edited 2013-01-07 23:43
    After a few hundred screws problem seems to be failed ZSUS board. Repair parts are available out of texas or other locations. So 50 min tofix..
  • PJAllenPJAllen Banned Posts: 5,065
    edited 2013-01-08 05:08
    frank freedman wrote: »
    ...seems to be failed ZSUS board.

    What Would ZSUS Do?
  • frank freedmanfrank freedman Posts: 1,983
    edited 2013-01-08 05:45
    Z sustain board is part of the screen driver. Looks to be a power regulator/supply of sorts. May have to learn more if there is any other issues, but for now, looks like shorted power regulator.

    Frank
  • davejamesdavejames Posts: 4,047
    edited 2013-01-08 07:37
    ...I think PJ was being a little playful.

    :lol:
  • Shawn LoweShawn Lowe Posts: 635
    edited 2013-01-08 07:49
    PJ Allen wrote: »
    What Would ZSUS Do?

    lol, man that is good!
  • frank freedmanfrank freedman Posts: 1,983
    edited 2013-01-08 12:44
    Anyone get the plates of that chariot that blew past me this morning?

    Nice catch PJ

    Frank
  • ZetsuZetsu Posts: 186
    edited 2013-01-08 13:44
    Our electronic tech where I work says that Electrolytic caps in Plasma tvs Dry up all the time. I guess before he worked for us he use to do TV repair and said that's the most common component to go out, and he also recommended if that is the issue to use High temp caps....
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