TH-42PX75U upper Y-buffer source?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • ngth82
    Badcaps Veteran
    • Jul 2015
    • 541
    • USA

    #1

    TH-42PX75U upper Y-buffer source?

    Hey guys -

    I have a Panasonic TH-42PX75U with bad upper Y-buffer - TNPA4184

    Anyone know of a good source other than eBay (at ~$60-$70 bucks) or ShopJimmy (out of stock)? I picked up the unit for free. The upper half of the screen is black. The lower half works. Smells like a bad upper Y-buffer to me.

    I'm going to pull the upper Y-buffer and ohm it out. Just trying to find a good source before i spend too much time on this unit.

    Thanks!
    -Thomas
    Attached Files
    -Thomas
    I'm a hardware engineer focused on networking equipment for my day job. I void warranties and fix consumer electronics for fun.
  • tvtimmy
    Badcaps Legend
    • Mar 2015
    • 1160
    • usa

    #2
    Re: TH-42PX75U upper Y-buffer source?

    International guy has them for about $45. I have one in my "wait for a busted screen" pile.

    Comment

    • ngth82
      Badcaps Veteran
      • Jul 2015
      • 541
      • USA

      #3
      Re: TH-42PX75U upper Y-buffer source?

      Yeah... that's what i'm afraid of. I tend to hold on to stuff in the "just in case the part becomes available" pile. I guess this is the time i set up search notification on eBay and Craigslist for a cheapo one.

      Are you looking for the same board? If not, maybe I can part this one out for you?

      Thanks!
      -Thomas
      I'm a hardware engineer focused on networking equipment for my day job. I void warranties and fix consumer electronics for fun.

      Comment

      • ngth82
        Badcaps Veteran
        • Jul 2015
        • 541
        • USA

        #4
        Re: TH-42PX75U upper Y-buffer source?

        I found the upper and lower y-buf on AliExpress for about $20.

        https://www.aliexpress.com/w/wholesa...n&isFreeShip=y
        -Thomas
        I'm a hardware engineer focused on networking equipment for my day job. I void warranties and fix consumer electronics for fun.

        Comment

        Related Topics

        Collapse

        • spleenharvester
          Whirlpool PACF212HP W portable air conditioner, upper fan only turns slowly.
          by spleenharvester
          I just acquired this portable aircon, history unknown. Its behaviour is quite strange:
          • When turned on and placed into cooling mode, the upper fan (cold air out) just spins slowly. The compressor and lower fan do not run.
          • If the device is then placed into heating mode and then back into cooling mode, the lower fan and compressor kick in and start cooling, but the upper fan still only spins slowly.
          • If the device is placed into fan-only mode, the upper fan does not respond to low/medium/high speed toggles - just keeps running slowly.
          • Display and buttons all behave normally aside from the
          ...
          06-27-2025, 07:49 PM
        • Lvsitano
          Asus X532FL 3.2V at source and gate
          by Lvsitano
          I am having some trouble with troubleshooting a Asus X532FL rev 2.0 motherboard, which does not power on. So at the first MOSFET, I am getting 19V at the drain, and then 3.2V on both gate and source (compared with ground). Of course, the 2nd MOSFET's source will have 3.2v at source.

          First MOSFET is a QM3056M6 and 2nd MOSFET is a QM0930M3

          I already checked first MOSFET and source and gate are not shorted (drain with source not shorted either). Also I have 1.7V at the LDO rail (measured at the keyboard connector, as the power button is on the keyboard).

          First...
          06-26-2024, 02:13 PM
        • Raulnn
          TD Systems K50DLG12US half black and half white screen
          by Raulnn
          good night! I have this screen that looks half black and half white. the tcon gives a low vgh value (5-6v). the rest seem fine. I first removed the flex from one half of the panel and then the other. Removing the left, vgh increases it to 25-26v. I think the problem is in that area, but there are not many elements on the integrated controller board. there are no shorted capacitors. could they be a cof? Some help?

          By the way, now the entire screen is black. Maybe some flex was not connected correctly... I have exchanged the flex and there are no variations, I don't think they are the...
          01-20-2024, 04:49 PM
        • skyvalley99
          Panasonic 50VT65 Sparkling/misfiring pixels upper half of screen
          by skyvalley99
          Recently my VT65 has started exhibiting sparking/misfiring pixels, it manifests as sparkling white pixels in the black area if there's brighter pixels in the same horizontal area (e.g. the smart viera boot screen, white credits on a black background).

          On inspecting the screen closley you can see pixels misfiring in the upper area of the screen at all time, it just gets lost in normal content.

          I've tried (without success) replacing the P/SS/SC board (refurbished boards) and re-calibrating the VSUS (including setting it to HIGH) but none has made a difference.
          ...
          02-21-2021, 01:24 PM
        • LarrySabo
          Samsung ProBook NP767XCM-K1CA battery connector replacment source?
          by LarrySabo
          Tonight I broke the battery connector on the motherboard of this laptop and need to source a replacement. See pictures. The marking seems to read B6u. The sticker on the motherboard reads TCZRFN6X00230 P03AJD BA92-20746B 06 29. If someone could suggest a proper part number and source, I would be very grateful....
          12-04-2024, 09:10 PM
        • Loading...
        • No more items.
        Working...