Vestel VES550QNUS-2D Panel issue.

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • stav242
    Senior Member
    • Jan 2014
    • 61
    • United Kingdom
    #1

    Vestel VES550QNUS-2D Panel issue.

    i just spent quite a few hours trying almost everything i could find out to check why this panel wasnt working.

    MB was detecting a fault and going into fault mode.
    i could se the AVDD go high for a second then drop to off.
    check all CAPs and diodes on bottom buffer boards.

    in the end i gave up and removed the panel, only to find burnt tracks on the cof tab..

    i learnt a lot in the process, but wont go doing all those checks first next time.

    so word of advice... if your panel is suspect, save youself a few hours and check the tabs first.!
    Attached Files
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • howardc64
      Samsung QN75Q6FNA backlight no display, red LED blink 2x, fault in panel
      by howardc64
      • Prior owner tried a replacement main board. No difference.
      • Samsung 2x red blinking standby LED = panel fault
      • Jumpered FB_TRDY_1 (pin 1 CN1300 left. main tcon->left side buffer boards) and FB_TRDY_3 (pin 95 CN1301 right. main tcon->right side buffer boards) This allows testing individual T-Con (on main board) connection to panel on this Samsung. Found fault on left side (viewing from rear of TV)
      • Each side has 2 buffer boards, disconnected left side flex between 2 buffer boards. Fault is on the left most board.
      • Tape masking eventually isolated to CN1300 pin 15 (CKV4_GOA) Display
      ...
      07-19-2025, 10:54 PM
    • NWArkGuy
      Samsung UN65TU8000 - Panel Issue [ hole in ribbon cable ]
      by NWArkGuy
      Well, I will be the first to admit that I screwed up...

      In attempting to replace the backlight in a UN65TU8000, I made a hole through one of the ribbon cables between the board that runs along the bottom of the back of the TV and the panel. This lead to a between a 1/4 to 1/2 inch vertical stripe running the full height of the image.

      I don't have the experience; personally, to solder a bridging wire for the paths that were cut. So, I have been on the hunt for other Samsung TV's of similar size.

      I have 2 that I have found and have in my possession. ...
      10-12-2023, 10:13 PM
    • Bazilwrc164
      Request: Firmware for Hitachi 42HXT12U (Vestel 17MB95M, VES420UNDL Panel)
      by Bazilwrc164
      Hi all,




      I’m looking for a USB firmware file or EEPROM dump for a Hitachi 42HXT12U TV.

      The mainboard is a Vestel 17MB95M, and the screen panel is VES420UNDL.




      I recently replaced the mainboard with another 17MB95M, but it’s programmed for an LC420DUJ panel, and I’m getting no picture. I’d like to flash the correct firmware via USB or update the EEPROM if needed.




      If anyone can provide:
      • A working USB firmware file (like upgrade_loader.pkg or mb95_m.bin)
      • Or a compatible EEPROM dump
      ...
      07-23-2025, 12:15 PM
    • triplefour
      LG 75UN8570AUD panel issue fixed with tape.
      by triplefour
      I've been seeing a lot of the new TVs (samsung and LG only i think) maybe 1-2 years old suffering from sudden panel death and have been over 50% successful bringing them at least most of the way back to functionality if not all the way, with the tape masking of the LVDS pins method.
      add this one to the list. the issue was on the left side of the panel and i ended up blocking just 3 pins on the connector that joins the two panel boards that make up the left side of the panel (it has 4 boards total) i didnt get the picture back to 100% perfect. i spent hours fiddling with which pins to block...
      07-17-2023, 10:22 PM
    • ResetReality
      Toshiba/Vestel 58UL2B63DB Wifi Issue???
      by ResetReality
      Hello fellow tech heads.

      Had this tv come in...issue stated reboots on wifi.

      Indeed it does. However, with wifi off or using cat 5 cable no reboot issues.

      So far ive changed mainboard and wifi module...also reset tv back to factory via service menu (4725)

      Still same issue... i do have a psu to swap but cant see it being that really as works flawless if wifi is disabled

      I thought fireware? But why only on wifi?

      Is it an issue with the memory cache filling up and having to reboot for more ram??

      At a total...
      07-04-2024, 12:28 PM
    • Loading...
    • No more items.
    Working...