VIORE 32" - Power board problem?

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  • 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...
    ORIGINAL POWER SUPPLY BOARD
    7 Photos
    11-22-2024, 01:46 PM
  • Destroyer-Br
    [HELP] Acer AN515-55 (LA-J871P Rev: 1B) – Board won't power on after GPU investigation – Suspecting Super I/O or PCH
    by Destroyer-Br
    [HELP] Acer AN515-55 (LA-J871P Rev: 1B) – Board won't power on after GPU investigation – Suspecting Super I/O or PCH

    Hi everyone,

    I'm working on an Acer Nitro 5 unit with the following specs:
    • Motherboard: LA-J871P Rev: 1B
    • Model: Acer AN515-55-59MT
    • S/N: NHQ7JAL00403906A973400
    • SNID: 03902728734
    Initial Issue


    The laptop initially presented graphic issues and driver failure (Code 43) for the GPU.

    After preventive maintenance (cleaning, thermal paste, etc.), it powered on normally. We disassembled it again to inspect the GPU, reassembled...
    04-17-2025, 08:18 PM
  • Dani_2024
    Sceptre U550CV-UMR 4K LED, Bad Caps on Main Power Board?
    by Dani_2024
    Hi and thanks in advance for any input you might provide!
    I have a Sceptre U550CV-UMRD8POTV83BB 4K LED (this is a dumb tv) that I bought new in August 2021, so It's just completed 3 years.
    Main power board model: TP.MS3683.PC821 T-Con board: N4TP546UHDPU2L_BO

    Last Sunday I was watching a dvd and fell asleep for about half hour, when I awoke the tv screen was black and couldn't get the dvd menu to show, so I changed the input to antenna and had sound but no picture, turned it off. I then got online and found this great site! ....read many troubleshooting tips and this...
    5 Photos
    10-28-2024, 05:06 PM
  • sam_sam_sam
    Panasonic switching power supply daughter board has two 27uf @ 50 volt capacitors which I do not keep in stock
    by sam_sam_sam
    I did not have any 27uf @ 50 volt capacitors but one nice thing is that it has enough room for two capacitors in parallel a 22uf and a 4.7uf @ 50 volts 22 plus 4.7 equals 26.7uf which so very close to 27uf I will show some pictures of it sometime tomorrow

    This is one of the shit est boards I seen in a very long time and it was the daughter board the traces just lifting off the board I had to use the capacitor leads to repair the the traces and the main board is not any better because I had to repair several traces for the daughter board to the main board

    After all of...
    07-13-2024, 08:14 PM
  • JDC
    (SOLVED) - ONN 100012588 No Power, Then Rebooting After Main Board Change
    by JDC
    ONN 100012588
    Issue: No Power, Then Rebooting After Main Board Change

    Short answer: replace main board and power board
    Technical answer: replace main board and Q306 & Q307 on power board.

    Long answer:

    TV wouldn't turn on. Power switch was fine which means the main board isn't processing the power on signal. Replaced main board. TV turns on now but randomly reboots. Bad main board? EEPROM? Tried to pull main board and got a shock touching the corner of the board. That's weird. C334 (450V 10uf) capacitor is still holding a high charge....
    07-15-2022, 07:39 AM
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