Laurus PH55CURVEUHD Backlight Array

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Bloopeta
    Badcaps Veteran
    • Jun 2018
    • 526
    • United Kingdom

    #1

    Laurus PH55CURVEUHD Backlight Array

    Have this TV, came with the LEDs gone blue problem, that I have seen many times but only on LG. Stripped the TV down, most of the lens covers had fallen off too.

    Got the part number for the strips

    SVS550AB5 _REV7.1_7COB_140702

    But nothing showing for that number or TV model number on Ali, or anywhere for that matter, anyone any idea where I can source these, or if perhaps they come under any other id?
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: Laurus PH55CURVEUHD Backlight Array

    What is the LCD panel model number?
    Did you search using "SVS550AB5 _REV7.1"?
    https://picclick.co.uk/Panasonic-Tx-...138783511.html
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment

    • Bloopeta
      Badcaps Veteran
      • Jun 2018
      • 526
      • United Kingdom

      #3
      Re: Laurus PH55CURVEUHD Backlight Array

      Originally posted by budm
      What is the LCD panel model number?
      Did you search using "SVS550AB5 _REV7.1"?
      https://picclick.co.uk/Panasonic-Tx-...138783511.html
      Im not at home atm to get the panel number, but yes they are the ones in you picture, i have tried searching on aliexpress with the number you said, and all the compatible model numbers I found here as pictured
      Attached Files

      Comment

      • ducky29
        Badcaps Veteran
        • Dec 2015
        • 370
        • Europe

        #4
        Re: Laurus PH55CURVEUHD Backlight Array

        Post some pictures here. Number of led and number of strips. This is a vestel set right?

        Comment

        • Bloopeta
          Badcaps Veteran
          • Jun 2018
          • 526
          • United Kingdom

          #5
          Re: Laurus PH55CURVEUHD Backlight Array

          Ive contacted a few suppliers, in both China and Turkey, and everywhere is sold out.

          Must have been a high demand for this Vestel rubbish :/

          Comment

          • Bloopeta
            Badcaps Veteran
            • Jun 2018
            • 526
            • United Kingdom

            #6
            Re: Laurus PH55CURVEUHD Backlight Array

            Originally posted by ducky29
            Post some pictures here. Number of led and number of strips. This is a vestel set right?
            Yes its a vestel set, I have contacted sellers in china, and turkey, everyone is saying out of stock and to yey again in 2 -3 months

            I spoke to a uk supplier, and he said they were never made as a service part, hense why no1 has them :/

            There are 12 strips in total, 7 LEDs per strip

            Here are the numbers
            Attached Files

            Comment

            • ducky29
              Badcaps Veteran
              • Dec 2015
              • 370
              • Europe

              #7
              Re: Laurus PH55CURVEUHD Backlight Array

              This might fit your tv. https://tvledbars.com/product/origin...-01201c-12pcs/

              https://tvledbars.com/product/origin...96-01201c-1pc/

              https://www.ebay.com/itm/PANASONIC-T...YAAOSwGWtdfwol
              Last edited by ducky29; 01-11-2020, 03:22 PM.

              Comment

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA

                #8
                Re: Laurus PH55CURVEUHD Backlight Array

                What is your LCD PANEL model number?
                Last edited by budm; 01-11-2020, 03:38 PM.
                Never stop learning
                Basic LCD TV and Monitor troubleshooting guides.
                http://www.badcaps.net/forum/showthr...956#post305956

                Voltage Regulator (LDO) testing:
                http://www.badcaps.net/forum/showthr...999#post300999

                Inverter testing using old CFL:
                http://www.badcaps.net/forum/showthr...er+testing+cfl

                Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                http://s807.photobucket.com/user/budm/library/

                TV Factory reset codes listing:
                http://www.badcaps.net/forum/showthread.php?t=24809

                Comment

                • Bloopeta
                  Badcaps Veteran
                  • Jun 2018
                  • 526
                  • United Kingdom

                  #9
                  Re: Laurus PH55CURVEUHD Backlight Array

                  Originally posted by budm
                  What is your LCD PANEL model number?
                  I cant seem to find it, there is no sticker where it would usually be?

                  Comment

                  • Bloopeta
                    Badcaps Veteran
                    • Jun 2018
                    • 526
                    • United Kingdom

                    #10
                    Re: Laurus PH55CURVEUHD Backlight Array

                    They are out of stock, and the last 1 on eBay is just 1 single strip

                    Comment

                    • ducky29
                      Badcaps Veteran
                      • Dec 2015
                      • 370
                      • Europe

                      #11
                      Re: Laurus PH55CURVEUHD Backlight Array

                      The link is for single strip on tvledbars but 10 are on stock.

                      Comment

                      • Bloopeta
                        Badcaps Veteran
                        • Jun 2018
                        • 526
                        • United Kingdom

                        #12
                        Re: Laurus PH55CURVEUHD Backlight Array

                        Originally posted by ducky29
                        The link is for single strip on tvledbars but 10 are on stock.
                        I need 12

                        Comment

                        • Bloopeta
                          Badcaps Veteran
                          • Jun 2018
                          • 526
                          • United Kingdom

                          #13
                          Re: Laurus PH55CURVEUHD Backlight Array

                          I have managed to locate a full set, from a brand new TV that had a damaged screen in the shop. Had to pay a bit more than I would have liked, but atleast its saved another TV.

                          Thankyou to everyone that replied

                          Comment

                          Related Topics

                          Collapse

                          • triplefour
                            UN65TU700DF picture and sound but no backlight. BL tests ok but repl. PSU didnt fix!
                            by triplefour
                            this tv is throwing me for a loop. do samsung tvs no longer have the backlight self test feature built into the power supply?
                            i tested the backlight with my LED tester and it lights up both strips. one of them reads 100v and the other reads 63.7v.
                            unplugged mainboard from power supply but left backlight plugged in, and then plugged psu wall power in. expected to see backlights light up but see nothing.
                            according to how ive diagnosed in the past, this would almost always be a bad power supply. replacement power supply was cheap like 20$ from ebay. but still i get not even...
                            09-13-2023, 10:43 PM
                          • DanPoka
                            Guide me through repairing a Dell p2210f LCD ccfl backlight monitor
                            by DanPoka
                            I bought this p2210f dell monitor to fix. Schematic is the same as p2210.
                            Behaviour is that monitors comes on but then backlight switches off almost instantly. If I look with flashlight I can still find the "No signal message". So definitely a backlight issue. Trying to advance the issue I proved that the protection circuit is switching off the backlight by shorting out C3 and resistor to disable the INL chip then re enable by removing the short.
                            This is where it gets interesting. When I disassembled the monitor to solder leads on c3 capacitor I noticed the backlight flickered...
                            02-15-2025, 05:05 AM
                          • Comp_Pro
                            No Backlight Macbook A1990 820-01041
                            by Comp_Pro
                            Hello all,

                            Am trying to figure out this backlight issue with this A1990 Macbook Pro.

                            Tests performed:

                            There is no backlight even with a good screen.
                            Backlight IC is receiving the correct support voltages.
                            Fuse F8400 ok
                            Current sense resistor R8400 ok
                            Backlight IC is receiving 3.3V on enable pin.
                            Backlight IC receiving voltage from PPBUS_G3H, aprox 12.5V.
                            Backlight IC receiving 5V from PP5V_G3S
                            Backlight IC BKLT_SCL and BKLT_SDA both measure 0.545V diode mode to ground
                            I2C_BKLT_SCL and I2C_BKLT_SDA both measure...
                            05-06-2024, 10:23 PM
                          • cheebster
                            iPad Pro 12.9 5th Gen Backlight Issue
                            by cheebster
                            Hello, got an iPad Pro A2378 12.9 5th gen with no backlight. Got another test unit without screen, tested the screen, still no backlight with the test unit.
                            Figured out the backlight on the screen was bad, ordred a new backlight from mobilesentrix, *carefully replaced it* without damaging the lcd, oh well.
                            Final result, issue is still there, the screen has no back lights. So i'm back to square one, with 3 hours less and 100$ out, issue still on the screen.
                            The panel is still ok, i can see the apple in the middle of the screen when it kicks in, just no backlight.
                            Anyone...
                            05-20-2025, 09:17 AM
                          • canadaboy25
                            LG Flatron 24EN33TA No Backlight When Cold
                            by canadaboy25
                            Hi all,

                            I've got an LG Flatron 24EN33TA with a backlight issue. The problem began with the monitor not powering up after sitting for a long time (overnight or during the day throughout work). When I would wake the computer up, the backlight would flick on for a second then go out. Sometimes it would take many tries to get it to come on. Once the monitor came on, it worked flawlessly until another long duration of being powered off.

                            I thought the problem would be bad caps but I checked both of the caps on the board and they are fine. I also tried powering the monitor from...
                            03-07-2023, 12:23 AM
                          • Loading...
                          • No more items.
                          Working...