LG 60pk790 - Zc. Standby on though no picture or sound or menu

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Icarus76
    New Member
    • Nov 2014
    • 2
    • England
    #1

    LG 60pk790 - Zc. Standby on though no picture or sound or menu

    Hi, new to this and first thread. Hoping for some advice please. As the title says standby light comes on a does power blue light after. Then nothing, no picture, menu or sound. I have tested all power cables coming off power board and values are good including a/c. All ok. Fuses good. Caps look good visually though not all tested out of circuit. Tested resistors, diodes on y sus. Ribbon pins on buffers. All good. I am now stuck as to what the problem is. Also done the jump wire test pattern for panel on main board but only got a red flash then nothing. Any
    help and advice would be appreciated thanks.
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • Document Archive
      LCD LED TV Service Menu Codes
      by Document Archive
      ALL LCD LED TV SERVICE MENU CODES

      Service Menu Code with Board Name

      China Universal Board / Jumper Board Service Menu Code
      Changhong Ruba Service Menu Code
      Ecostar LED TV Service Menu Code
      Orient LED TV Service Menu Code
      Haier LED TV Service Menu Code
      TCL LED TV Service Menu Code
      Samsung LED TV Service Menu Code
      LG LED TV Service Menu Code
      Videocon LED TV Service Menu Code
      Supra LED TV Service Menu Code
      Toshiba LED TV Service Menu Code
      Symphony LED TV Service Menu Code
      Veste/ LED TV Service Menu Code...
      10-31-2024, 03:58 AM
    • TR103
      Samsung TV model UE50TU: rebooting, backlight, sound, but no picture
      by TR103
      Hi, I have a Samsung UE50TU with:
      - sound and backlight, but no picture
      - when it arrived, it had a picture for a few seconds
      - it keeps rebooting
      - without ribbon cable between the two panel boards, it does not reboot but I have no picture
      - without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
      - when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.

      - without cable between mainboard and lcd panel and with a jumpered...
      01-22-2025, 04:12 PM
    • Ierwin
      Samsung UE60KU6079 backlight okay mainboard responsive, no picture, no sound
      by Ierwin
      Hello everyone,
      Ive got a UE60KU6079 on the workbench that is giving me some headaches trying to troubleshoot.
      The previous owner stated that there had been white dots on the screen which from the description sounded like some lenses fell of the backlight LEDs.
      He had opened the TV from the back, trying to get to the backlight, supposedly gave up, reassebled everything and gave the TV to me.
      I expected the worst like ripped COF cables or a cracked panel but could not find anything like that yet.
      Anyway I still fully expect that there has been something seriously damaged...
      05-13-2025, 03:31 PM
    • jchang
      Samsung UN70NU6900F no picture and no sound
      by jchang
      Hi all

      I was just given a Samsung TV with the issue. I read various threads and videos and attempted the ribbon tape method to gain an image, but no luck.



      Symptom:
      No picture no sound.
      When I plug in the power cord, Backlight LED turns on for a half second and then turns off. The red LED next to the power button located center bottom flashes 2 or 3 times. When the power button is pressed after, it does the same thing.
      No sound at all.



      What I tried:
      1. I tried unplugging the left or right ribbon...
      01-09-2023, 06:28 PM
    • slimsoul
      Samsung TV`s UE32J5500AK and UE48H6400AK Red Standby Light - No Picture/Sound
      by slimsoul
      Hi, I'm new here and looking for some advice on how to diagnose an issue i have with 2 samsung TVs.

      I have a UE32J5500AK and a UE48H6400AK both with the same issue of red light but nothing happening on the screen, the red light responds to remote or button press by flashing once but stays red. I have searched forums but most turn up a blinking red light.

      I have tried replaceing the power board on the UE32J5500AK last year but this resulted in the same outcome.
      The UE48H6400AK recently developed some small bright areas on the screen, then last week would not power...
      03-12-2024, 03:55 AM
    • Loading...
    • No more items.
    Working...