Vizio e701i-a3 Fixed completely unresponsive set

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • kobayashi_maru
    New Member
    • Mar 2018
    • 3
    • Canada
    #1

    Vizio e701i-a3 Fixed completely unresponsive set

    My first post, hoping this experience will help someone.

    On Christmas morning my Vizio e701-a3 which I've owned for ~2 years died (thanks Santa). I bought a used set that was manufactured in Oct of 2015 if I recall correctly.

    Symptoms:
    - Random, infrequent shutdowns (few times a year) since ownership
    - No popping noise or warning whatsoever, it simply shuts off
    - Would normally turn back on after several tries
    - Completely unresponsive. No picture, sound, backlight or LED indicator

    Troubleshooting:
    - Suspected power board. Checked mains connection on board. PASS
    - Checked main fuse for continuity. PASS
    - Checked output terminals connecting to mainboard for voltage. PASS
    - Power board OK. Suspect mainboard.
    - Ordered mainboard from ebay for ~$100 CAD shipped and installed. FIXED!

    I was really hoping it would be something simple (and cheap) like a blown fuse or cap. But, as you can see, what appeared to be a power supply issue turned out to be a mainboard problem.
    My electronics knowledge is limited so I didn't troubleshoot the components on the mainboard. I decided if replacing it didn't work it was time for an upgrade. Guess I'll be holding off a while longer for 4K
    Tags: None
    • Th3_uN1Qu3
      Believe in
      • Jul 2010
      • 6031
      • Romania
      #2
      Re: Vizio e701i-a3 Fixed completely unresponsive set

      That was likely a BGA solder failure of the main processor. Not something easily repairable without good tools and a steady hand. Still, $100 for a replacement mainboard, not a bad price. Congrats.
      Originally posted by PeteS in CA
      Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
      A working TV? How boring!

        Comment

        • kobayashi_maru
          New Member
          • Mar 2018
          • 3
          • Canada
          #3
          Re: Vizio e701i-a3 Fixed completely unresponsive set

          Thanks! I haggled him down a few bucks using ebay's "make an offer" button

            Comment

            Previous template Next

            Related Topics

            Collapse
            • 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
            • tmhobadcap
              VIZIO M60-C3 Can the vertical line be fixed?
              by tmhobadcap
              I am trying to help my friend to fix his Vizio tv with a vertical line on the screen. The line is on the right side. It is blue/purple on the right side starting from the top. But it only goes to about 3/4 of the screen height (not to the bottom of the screen). It is very obvious when the screen is dark and it is hard to be seen when the screen is bright. Please help....
              02-05-2023, 03:37 AM
            • mrtek
              Vizio M65-C1
              by mrtek
              Hi.

              picked up another TV. This time is a Vizio M65-C1. TV does not turn on. I had repaired another 60 inch vizio , Bad main board.
              When power button is pressed, the Power led indicator on the bottom right, turns for a few seconds and then it fades away. No backlight or Vizio logo on screen. Removed back cover and repeated test.
              This is the TV This TV is a little different from the Samsung I have worked on. Power supply is on the Left side, Main Bd is on the right side, T-CON , not in the picture is on the bottom. I am assuming that the boards in the middle are the LED...
              07-14-2025, 07:28 PM
            • jason123
              Vizio M70-C3, P602ui-B3, M80-C3,... Anyone fixed the main board?
              by jason123
              Hi folks,
              I'm seeing more and more of the P602ui-B3, M70-C3,... coming in with the same symptom: TV appears to turn on (front LED activity, fades off), but no picture, backlight or..

              Replacement of the main board has fixed every one of these. These boards are becoming more and more expensive. boards warm up (heatsink fairly warm / hot)

              The common issue is if you monitor a USB board connected to this main board, or the Optical Audio red light, i consistently seems to be rebooting after almost exactly 60 seconds (red Audio LED, and front LED go off, then back...
              03-13-2021, 08:42 AM
            • goofykao@yahoo.com
              ViZIO M70-D3 Completely Dead (Weird!)
              by goofykao@yahoo.com
              Hi, Just joined this forum hoping to fix this TV.

              Sorry for the long post to explain the problem in details.

              Model: VIZIO M70-D3, 4 years old

              What happened: TV had no issue at all and one day just died (4 weeks ago) and NO LED stand-by light (usually it's Red at bottom left front side)

              Current status: Cannot power on and NO LED stand-by light

              Strategy: Since I am not good at fixing boards at component level, it's better for me to just replace boards with known good ones

              Trouble Shooting History:
              ...
              09-27-2021, 08:42 AM
            • Loading...
            • No more items.
            Working...