Vizio VO42L - Red Fuzz

Collapse
X
 
  • Time
  • Show
Clear All
new posts

Related Topics

Collapse

  • Tynan Dill
    Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
    by Tynan Dill
    I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

    Upon bringing it home and plugging it up, it showed a standby light.

    I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

    The screen seems to blackout and stay black, but with a flashlight I can see the display.

    With my Playstation 4 connected via HDMI, and running a game I can hear sound.

    Assuming...
    11-22-2024, 01:46 PM
  • SS454
    vizio e650i-a2 backlight flashes then turns off
    by SS454
    vizio e650i-a2 (LWJAOZBP Serial) led backlight flashes then turns off, has video (via flashlight) and audio.

    panel: au optronics T650HVN05.4
    72 led total on 12 strips, 6 led per strip wired in three groups of 24 (led driver board has three anode and three cathode pins)
    link to datasheet: https://datasheetspdf.com/pdf-file/8.../T650HVN05.4/1

    Vizio 56.04219.641G (liteon PA-3231-01WN-LF) Power Supply Unit
    https://www.shopjimmy.com/vizio-56-0...-power-supply/

    Vizio 55.75J01.001G (91.75J10.004G) Main Board...
    08-20-2020, 03:57 PM
  • ChillingCicada
    Vizio VO42L Issues: Need Guidance
    by ChillingCicada
    We've had our Vizio VO42L since before 2010, and it's worked flawlessly this entire time. However, just recently it started emitting a high-pitched buzzing/humming sound. I followed the basic troubleshooting tips of just unplugging it for a moment, and even holding down the power button while doing so, all to no avail.

    Furthermore, after I attempted these basic steps and powered the TV back on it would always begin visually flickering while the sound stuttered. After a few moments of being turned on this would go away, but it still periodically comes back.

    I also...
    06-09-2021, 05:47 PM
  • Daveleone
    Vizio VO42L, white logo, no backlight, no picture
    by Daveleone
    Hi all! I've got a Vizio VO42L. Plug it in, and logo flashes orange/white for a bit, then solid orange. Press power, and logo changes to white. There is no backlight.
    From reading some of the posts here I thought the inverter could have been the problem, but I've replaced it and still have the same issue. I noted that shining a flashlight on the screen shows nothing, so now I'm thinking main board?

    I took the following readings with the TV powered on. I also tried taking the readings with the CFL connectors unplugged - no change.

    Main board:
    Continuity across...
    02-20-2021, 04:52 PM
  • howardc64
    Vizio M65Q7-H1 Red Vertical Strips fixed by tape blocking LC1 signal to half of the panel
    by howardc64
    Failure Symptom



    No picture, just red vertical stripes. Google search shows quite common problem for these recent Vizio M series although red vertical stripe pattern may differ. Some call it "Netflix" boot screen haha.

    Where is the short?

    Panel has 4x buffer boards. Quickly found the 1/4 panel buffer board with the problem by selectively disconnecting buffer board flex cables.



    Having recently fixed another Vizio with similar symptoms that was a shorted ESD diode array ( link ) Probed the ESD diode array but...
    05-27-2025, 02:56 PM
  • Loading...
  • No more items.
Working...