Install Vizio E701i-A3 LED TV RUNTK5261TPZH T-Con board

V_LED_TV_T-Con_replacement RUNTK5261TPZH

Problems on your Vizio E701i-A3 LED TV screen?

Those scrambled pixels, faded colour and black screen on your Vizio E701i-A3 LED TV may be caused by a faulty T-Con board.

The problem is a 8 pin eprom chip failure on the lower right side of the RUNTK5261TPZH timing control board (T-Con) that interrupts the video signal to the Main board.

This T-Con board failure is happening at 500 hours of usage and according to VIZIO affects those E701i-A3 TVs with serial numbers from LFTRNXAN4500001 to LFTRNXAN4702936.

If your VIZIO E701i-A3 is older than a year, your warranty will not cover the replacement costs for a new T-Con board. Fortunately the replacement RUNTK5261TPZH T-Con board is available for sale online for under $150.

Replace the Vizio E701i-A3 LED TV board

Equipment needed:

  • Antistatic plastic gloves or antistatic bracelet
  • Pad/ towel
  • Needle-nose pliers
  • Electric Flat head and Philips screwdriver
  • Cup for screws

Step-by-step instructions

Vizio E701i-A3-70C8470U_LED_TV_RUNTK5261TPZH_T-Con_Board

  • Put on the rubber gloves bef
  • Turn the VIZIO E701i-A3 television off. Unplug the power cord.
  • Remove the TV from the wall, if mounted.
  • Lay the VIZIO E701i-A3 TV on a flat, padded surface.
  • Remove the TV stand by loosening the screws at the base. Both the stand and post must be removed in order to remove the back panel.
  • Go to the back of the panel.
  • Remove all the screws holding the back panel in place. Put the screws to one side.
  • Remove the back panel from the E701iA3.
  • The RUNTK5261TPZH T-Con board is located in the middle top of the back panel, usually under an aluminum cover held in place by four corner screws. It may also be held in place with foil tape at the top. It’s connected to the Main board through a black LVDS cable and flat ribbon cables.
  • Remove the ribbon cable first. Flip up the black tabs on the connector. Gently pull the cable out taking care not the scratch the ribbon section. Never use any sharp objects to open the black tabs as this can damage the pins making the connection faulty.
  • To remove the LVDS cable, squeeze the small tab on side. Don’t force anything apart or pull anything too hard as this can damage the connections and cause more problems.
  • Loosen the screws holding the RUNTK5261TPZH T-Con board in place. Place it to one side. This board is considered e-waste and should be sent to a recycling facility. Do not place into regular garbage.
  • NOTE: Be sure to put on your rubber gloves before touching the new T-Con board. Hold the RUNTK5261TPZH T-Con board by the edge and avoid touching any of the components since they are very sensitive to electrostatic charges.
  • Verify the manufacturers number for your board. (It will be found under the bar code.) Place the new board onto the back panel.
  • To re-install the ribbon cable: Match the line on the ribbon cable with the edge of the connector making sure the ribbon is straight. Press down on the tab to lock it into place.
  • Re-connect the LVDS cable by putting the connector end into the RUNTK5261TPZH T-Con board until it clicks into place.
  • Tighten the screws on the board. Replace any foil tape.
  • Replace the RUNTK5261TPZH T-Con cover. Tighten the screws.
  • Place the back cover back onto the VIZIO E701i-A3 TV and tighten all the screws.
  • Re-install the stand and post. Remount the VIZIO E701i-A3 TV.


Alternative part numbers

The RUNTK5261TPZH T-Con board is also sold under the following numbers:


Tagged with: , , , , ,
10 comments on “Install Vizio E701i-A3 LED TV RUNTK5261TPZH T-Con board
Join the discussion on Facebook! All your questions, answered! The Screen & Projector Group
  1. avatar Chris christianson says:

    I have a Vizio 70 model E7101I-A3 an LFTRNXBP 3301310. I have a black screen with sound and backing light working I feel this T-con board is what I need. Which board should I use to fix my problem or are they all the same. Thanks.

    • avatar Shelagh McNally says:

      Hi Chris,
      How old is the projector lamp in the TV? If it’s reaching end of life that would give you a black screen with some back light. Check the time left on the lamp as it may be time to replace it. If it was the T-Con board you would have no sound at all. The T-con boards are not the same as each model has its own specifications. You could try contacting the Discount Merchant customer service line for more information about which T-con board you would need. 1-800-281-8860 or try joining our forum where there is a community of experts that can offer you more advice and guidance. I hope this helps.

  2. avatar Neil says:

    I have a vizio tv model E701i-A3 I bought the tv like 4 years ago just one night the screen turning black no sound no image and the little light they have in the bottom of the tv doesn’t turn on two so I don’t know what is the problem with my tv maybe the main board or T-con I don’t know the board for the power supply I know is working because if I connect the tv I have a light in the back. Someone can help me please.

    • avatar Shelagh McNally says:

      Hi Neil,
      This sounds like a bad T-con board. IMPORTANT: If your TV has No Picture/No Video, this is likely caused by a bad T-con board, and NOT a bad main board.
      Symptoms commonly caused by a bad main board in this model include:
      -No sound
      -Loud noise, then TV shuts down
      -HDMI inputs non-functional
      -TV will not tune channels
      -No internet connection
      -Internet apps open and TV locks up
      I would check with the for this part but you may need to contact a technician since this is a major repair. So sorry for your hassle.

  3. avatar Eric says:

    Hello my Vizio E701I-A3E TV faded to black like an old picture tube failure. I now have no sound, no picture but a silver/grey backlighting of entire screen. How can I tell if this is the tcon or the screen bad? Thank you for your help and Lord Bless

    • avatar Shelagh McNally says:

      Hi Eric,
      The fires thing to check is to see if the TV is still under warranty. If so then get your technician to check the T-con boards, the back light and the LED screen itself. These are all the components that could possibly be causing these issues. You will definitely need a technician to do these repairs. Parts can be found at Hope this helps.

  4. avatar David Hayden says:

    I have a Vizio E701I-A3E TV. I have no picture, but I do have sound. I replaced the T-con Board and everything was working normally. After a few hours of operation the picture went out again. Is this a bad replacement board or is there another issue that caused the new T-con Board to fail and lose picture?

    • avatar Shelagh McNally says:

      Hi David,
      There is a possibility that the projector lamp got knocked and the connections became loose while replacing the T-Con board. I would trying re-installing the lamp light and see if that helps. The other possibility if that the ballast wheel has become unstable and not firing properly. Start off the with lamp and go from there. If you go to our forum you will find more advice from experts. Please stay in touch and let me know how things are going. I can reach out to our forum experts to provide more answers.

  5. avatar Alvarnaz Moore says:

    I have a E7001iA3 model and my TV has sound but no picture. I bought it in 2013 at Walmart on Black Friday. Can someone please help me to maybe fix this thing. I did here n there used to hear a small popping noise and it shuts off my TV before it just went all the way Black. I thought it was my electricity in my walls. My power still surges from time to time though.

    • avatar Shelagh McNally says:

      Hi Alvarnaz,
      It’s your TV projector lamp that has died and needs replacing. Follow our guide to show you how to replace the lamp. The small popping sound you heard what probably the lamp exploding from being end if life. All the symptoms point to the projector lamp. Be sure to buy an OEM original lamp since they last longer and are calibrated to work with your TV.

Leave a Reply

Your email address will not be published. Required fields are marked *


Time limit is exhausted. Please reload CAPTCHA.

This site uses Akismet to reduce spam. Learn how your comment data is processed.