Vizio E701i-A3 no Pic or sound but has backlight

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Ltank
    Badcaps Veteran
    • Jun 2013
    • 776
    • USA

    #1

    Vizio E701i-A3 no Pic or sound but has backlight

    Before I start. Can the back be removed while leaving the stand in place? It appears that the stand has to come off 1st before removing the back. Set has backlight but no menu makes me suspect the M.B. I connected a HDMI signal but got no sound. With no video all I can do is cycle through the inputs with the remote. Set is too heavy to remove off stand with two people. Need one on each end and one to remove the stand.
    Last edited by Ltank; 02-18-2015, 02:06 PM.
  • audiofreak19
    Badcaps Veteran
    • Apr 2013
    • 556
    • usa

    #2
    Re: Vizio E701i-A3 no Pic or sound but has backlight

    Can you see the inputs change on the screen.

    Comment

    • Ltank
      Badcaps Veteran
      • Jun 2013
      • 776
      • USA

      #3
      Re: Vizio E701i-A3 no Pic or sound but has backlight

      I found a owners manual. The stand has to come off. I was able to cycle through the inputs and I do have sound. There is the faint glow of backlights when pressing some of the remote buttons. Hope to get some help with set on stand to remove back. Set is on the stand band all the screws are out. guess the thing is snapped together too!
      Last edited by Ltank; 02-18-2015, 02:40 PM.

      Comment

      • Ltank
        Badcaps Veteran
        • Jun 2013
        • 776
        • USA

        #4
        Re: Vizio E701i-A3 no Pic or sound but has backlight

        Back is off finally. T-Con fuse F101 was good. No menu. Have volume control manually. HDMI 1 and 2 have sound. Bad Main board or T-Con? I could not find a service manual.
        Attached Files

        Comment

        • Ltank
          Badcaps Veteran
          • Jun 2013
          • 776
          • USA

          #5
          Re: Vizio E701i-A3 no Pic or sound but has backlight

          Does anyone have a T-Con schematic for CPWBX RUNTK5261TP ZH. There are some small test points near the ribbon cable inputs on the T-Con that come from the Main Board. If the inputs are good then it should be the T-Con. If the inputs to the T-con are bad the it should be the Main Board. Shop Jimmy info on these two boards are misleading.
          The voltage was good on both sides of the fuse. 12.5 vdc.
          Thanks Guys

          Comment

          • Ltank
            Badcaps Veteran
            • Jun 2013
            • 776
            • USA

            #6
            Re: Vizio E701i-A3 no Pic or sound but has backlight

            I see many M.B. 1P-012BJ00-4012 for 70" sets. The part number shows up for both the 60 and 70 inch set searches.
            Will a board from a 60" work on the 70"? With menu setup changes?

            Comment

            • ecking767
              Badcaps Veteran
              • Oct 2009
              • 492
              • USA

              #7
              Re: Vizio E701i-A3 no Pic or sound but has backlight

              your problem is most likely to be the T-CON, since you are getting sound, back-light and the TV turns off/on. Vizio model # E601i-A3 and E701i-A3 are known for having T-CON board failures.

              Comment

              • aaronwt6
                Badcaps Veteran
                • Apr 2013
                • 855
                • US

                #8
                Re: Vizio E701i-A3 no Pic or sound but has backlight

                I agree on the T-con being the issue. And, neither the T-con nor the Main are interchangeable between the 60" and 70".

                Comment

                • triplefour
                  Badcaps Legend
                  • May 2014
                  • 1747
                  • USA

                  #9
                  Re: Vizio E701i-A3 no Pic or sound but has backlight

                  dang i thought i read on shopjimmy the motherboards were interchangeable
                  Last edited by triplefour; 04-05-2015, 03:58 AM.
                  Don't fear the repair...

                  Comment

                  • triplefour
                    Badcaps Legend
                    • May 2014
                    • 1747
                    • USA

                    #10
                    Re: Vizio E701i-A3 no Pic or sound but has backlight

                    from http://www.shopjimmy.com/sharp-runtk...-con-board.htm
                    "
                    Board Number(s): CPWBX5261TPZH
                    Substitute Parts: RUNTK5261TPZC
                    RUNTK5261TPZE
                    RUNTK5261TPZZ
                    RUNTK5261TPZG
                    RUNTK5261TPZK
                    RUNTK5261TPZJ
                    RUNTK5261TPZN
                    RUNTK5261TPZM
                    RUNTK5261TPZA
                    RUNTK5348TPZA
                    RUNTK5348TPZZ
                    RUNTK5348TPZB
                    RUNTK5348TPZC
                    RUNTK5348TPZD
                    RUNTK5345TPZC
                    RUNTK5345TPZB
                    Panel Manufacturer: Sharp


                    Important Message: Look for the ZH stamped on the board.

                    IMPORTANT: The following picture symptoms indicate a bad LCD panel, and NOT a bad T-con board:

                    -One side of the picture is darker than the other
                    -Picture has horizontal line(s)
                    -A dark, cloudy spot spreads across the picture

                    Installing a new T-con board in a panel with one of the defects above will result in damaging the new board.
                    "


                    is this true? can a bad panel ruin a new tcon?
                    Last edited by triplefour; 04-05-2015, 03:59 AM.
                    Don't fear the repair...

                    Comment

                    • triplefour
                      Badcaps Legend
                      • May 2014
                      • 1747
                      • USA

                      #11
                      Re: Vizio E701i-A3 no Pic or sound but has backlight

                      thing is, im trying to fix my friends tv which has the same problem of blank backlit screen with sound. it's the VIZIO E701I-A3 which came with the ZH stamp on the t-con but i didnt notice that when i ordered the ZE one by mistake which i guess is for the 60" tv. are we sure that the result of a mismatched but functioning TCON and panel would result in the same backlit blank screen? or would you maybe see a corrupted image of the wrong size?

                      what volts would you expect to see on the ribbon cable connecting the tcon to the panel? and how do you measure them without touching two of them together with the probe? the pin pitch is so tiny.


                      edit: great and it turns out i ordered the wrong motherboard too.

                      guess i gotta get my hands on the correct parts and try again. why didnt i check the forum first?!?! stupid stupid stupid!

                      anyone need parts for the 60" ?
                      Last edited by triplefour; 04-05-2015, 04:23 AM.
                      Don't fear the repair...

                      Comment

                      • Jasams74
                        New Member
                        • Feb 2016
                        • 2
                        • United States

                        #12
                        Re: Vizio E701i-A3 no Pic or sound but has backlight

                        Originally posted by Ltank
                        I found a owners manual. The stand has to come off. I was able to cycle through the inputs and I do have sound. There is the faint glow of backlights when pressing some of the remote buttons. Hope to get some help with set on stand to remove back. Set is on the stand band all the screws are out. guess the thing is snapped together too!
                        I have the same issue with my vizio e601i-a3. How did you check the sound without being able to see the menu? This tv was given to me after it went out and the owner said that the sound came on but I wanted to be sure.

                        Comment

                        • Ltank
                          Badcaps Veteran
                          • Jun 2013
                          • 776
                          • USA

                          #13
                          Re: Vizio E701i-A3 no Pic or sound but has backlight

                          Most people use HDMI 1. I test that 1st with a single of picture and sound. If no sound then cycle through all the other inputs. If the main board is processing sound then one of inputs will work.
                          When you find the one with sound that would be input that is selected even though you have no menu on the screen.

                          Comment

                          Related Topics

                          Collapse

                          • triplefour
                            UN65TU700DF picture and sound but no backlight. BL tests ok but repl. PSU didnt fix!
                            by triplefour
                            this tv is throwing me for a loop. do samsung tvs no longer have the backlight self test feature built into the power supply?
                            i tested the backlight with my LED tester and it lights up both strips. one of them reads 100v and the other reads 63.7v.
                            unplugged mainboard from power supply but left backlight plugged in, and then plugged psu wall power in. expected to see backlights light up but see nothing.
                            according to how ive diagnosed in the past, this would almost always be a bad power supply. replacement power supply was cheap like 20$ from ebay. but still i get not even...
                            09-13-2023, 10:43 PM
                          • Ierwin
                            Samsung UE60KU6079 backlight okay mainboard responsive, no picture, no sound
                            by Ierwin
                            Hello everyone,
                            Ive got a UE60KU6079 on the workbench that is giving me some headaches trying to troubleshoot.
                            The previous owner stated that there had been white dots on the screen which from the description sounded like some lenses fell of the backlight LEDs.
                            He had opened the TV from the back, trying to get to the backlight, supposedly gave up, reassebled everything and gave the TV to me.
                            I expected the worst like ripped COF cables or a cracked panel but could not find anything like that yet.
                            Anyway I still fully expect that there has been something seriously damaged...
                            05-13-2025, 03:31 PM
                          • 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
                          • 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
                          • ChaosLegionnaire
                            what i went through dealing with my mobo with dead onboard sound!
                            by ChaosLegionnaire
                            so i took out one of my spare gigabyte ep35-ds3r mobos from storage for use to do some cpu, ram and video card testing of stuff i bought from ebay and got for free from momaka. he bought 50 e8400 cpus for cheap from ebay some years ago and i decided to help him relieve him of some of his supply since he had waaaay too many!! what did we say about hoarding too much stuff and depriving others of them?! *cough* socialism *cough* lol!

                            i had to blow some dust off the board and heatsinks with the datavac as i didnt clean it up before putting it in storage. after finishing...
                            09-13-2022, 09:02 AM
                          • Loading...
                          • No more items.
                          Working...