Vizio xvt553sv main board no hdmi input...

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • weezies_view
    New Member
    • May 2014
    • 4
    • usa
    #1

    Vizio xvt553sv main board no hdmi input...

    Hi there everyone... OK, so I initially had a Vizio 55 inch led TV that went out on me. Model number xvt553sv. No power, completely dead... my first initial thought was replace the power supply board... bought one off eBay for 50 bucks and replaced it... powered right up and went through updating section and went into Vizio screen and turned on... thought it was working properly till I noticed all the hdmi inputs were not working... so I went to the main board and checked all the fuses... about 6 or so fused totaled and they all work working properly.. checked on this forum and found some people with same issue but was never really able to solve the problem without paying 160 bucks to replace the whole main board. What I found out was that all power was being cut off right where the hdmi processor was... so that has to be replaced. Now I jus need to know where I can get an hdmi processor for this board number 3655-0122-0150... I have experience in surface mount soldering so this will not be an issue for me to take it off and put new one in... I jus need to know where I can get one...

    Tags: None
    • Grengadgy
      Member
      • Feb 2015
      • 10
      • USA
      #2
      Re: Vizio xvt553sv main board no hdmi input...

      My XVT323SV shows No HDMI, No Bluetooth address, NO wireless and on setup it won't show any HDMI inputs(only shows antenna, AV and RBG). It won't show any devices(Kind or brand). I can only use coax, av and maybe rgb inputs.

      Is your tv showing any of my symptoms besides no HDMI inputs?

        Comment

        Previous template Next

        Related Topics

        Collapse
        • 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
        • 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
        • jb_Bak
          Sony xbr-65x900c main board issues?
          by jb_Bak
          Hey guys great forum glad to have found it. I bought a Sony XBR 65X900C cheaply because it didn't work. No signs of life at all not even a light/led. All I hear is a brief high voltage sound when I throw the power to it.

          Didn't see any obvious signs of damage so right away started checking voltages. This is what I see:
          Power Board Connector that goes to Main board
          CN6401
          Pin 01 NC
          Pin 02 NC
          Pin 03 "BL_ON": 0V
          Pin 04 "N/C"
          Pin 05 "STBY 3.3V": 3.5V
          Pin 06 "GND": N/C
          Pin 07 "AC_OFF"...
          09-27-2021, 04:52 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
        • m1ch43lzm
          HP Pavilion 15-eh Board DAG7HAMB8F0 - CPU throttling to 0.4GHz (PROCHOT_EXT) and black screen
          by m1ch43lzm
          Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
          Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic...
          05-12-2025, 08:37 PM
        • Loading...
        • No more items.
        Working...