Vizio P702ui-B3 won't turn on if power is lost momentarily.

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • JohnJones
    New Member
    • Jul 2021
    • 3
    • USA

    #1

    Vizio P702ui-B3 won't turn on if power is lost momentarily.

    My Vizio P702ui-B3 won't turn on if the power goes out and comes back on. I have to unplug the TV for several hours before it will work again. If I plug it in too soon, I have to start the whole wait all over again. Any idea what might be wrong with it?

Related Topics

Collapse

  • Mulp
    VIZIO M65-C1 Does Not Turn On
    by Mulp
    Hi All,

    I am having an issue with my Vizio M65-C1 where it does not turn on. When I plug it in the stand by light on bottom left of screen turns on (white) then fades away. If I press the power button it turn back on and then fades until it is super dim.

    When I remove cover, there are no illuminated leds on the main board, I've seen others with a red/blue led that turns on.

    I've done some research and what is interesting is my voltages all seem slightly different from other people. For example +5/3.5v is 3.48V when on which is different from others on here....
    01-13-2024, 09:57 PM
  • 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
  • pajdek
    Lenovo Y700-17ISK turn on and off
    by pajdek
    Hello, i have some issues with my laptop Lenovo Y700-17ISK (motherboard BY511 NM-A541), it started when i turn on the laptop, but the lcd wont turn on, i then connected it via hdmi to tv and screen was ok. So i thought maybe lcd stripe is faulty, i removed the bottom cover, disconnected main battery, reset the cmos by disconnecting battery for 1 min, then slighty move the lcd stripe. Conncted power supply and tuned on my laptop, the lcd turn on, it started to load os, then it turn off, after a second it turn on, then after like 3 seconds turn off again, and so on. Removed power supply, waited...
    09-20-2023, 02:49 AM
  • RdeveLabs
    MSI GF63 THIN 11UCX (MS-16R6) LAPTOP WON'T TURN ON AFTER RESTARTING
    by RdeveLabs
    To all the members here...

    Let me tell you a little bit about what happened to my laptop (MSI GF63 THIN 11UCX model: MS-16R6) that “maybe” you know how to solve this problem.

    So before this problem happened, my laptop was running smoothly. When I wanted to restart my laptop, it looked fine at first. But after I waited for this restart process to take a long time, until finally I panicked (because the restart process did not finish plus the laptop screen only showed a black screen), I immediately pressed and held the power button to force the laptop to turn off. But...
    05-05-2025, 04:59 AM
  • 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
  • Loading...
  • No more items.
Working...