Maybe someone here can help me. I bought an Vizio m70-c3 on craigslist for $175 that needed backlights. It had a beautiful picture just really dim in some spots. Tested the leds and alot were out. Ordered some from shopjimmy and put everything back together and now the pic is screwed up. Any advice would be greatly appreciated.
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
That's mura, not fixable, but may be caused by the failed gate driver on the right side of the panel. Panel and tcon manufactured by sharp.Did I leave the soldering iron on? -
Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
Take a better picture of the screen if you can. Looks as if the right side gate driver with that white band goes all the way across the screen is the area that is baddDid I leave the soldering iron on?Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
You should not pay more then $20 to $50 for a faulty tv , please dont pay $175Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
It had none of these problems when I bought it. Was just a little dim in spots.Last edited by sawilson; 02-12-2018, 10:31 PM.Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
replacing LEDs in 60 and bigger displays is a time consuming job that takes a lot of patience and temperament. buying one for more than $30 is not advise-able in my opinion. your set is probable parts nowLast edited by ajshoe; 02-12-2018, 11:57 PM.Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
how did you handle removing the LCD screen? do you have the suction cups?Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
I'll try anything. Did you ever post that step by step video? I looked for it on Youtube but couldn't find anything. Want to give myself the best possibility for success. How do i determine which side to take off?Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
Could have pinched the tabs when setting the screen back on...take off the plastic piece that holds the panel on that side and see if it clears upComment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
Had a video on YouTube but for some reason it was removed.Did I leave the soldering iron on?Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
Ive taken off the piece that fits over the panel and checked all cables, no improvement. Ive got the back off now and its on its stands. I can get to everything if needed. Just not sure where to start or on which side.Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
Take off the right side while in front of the screen.Did I leave the soldering iron on?Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
No heat needed just gently pull each tab away from the panel like you're peeling tape off of something. Start from the top and work your way to the bottom both side boards (upper and lower) all cables on that side. When you're done you will have to boards connected by a ribbon with all the ribbons hanging off the boards Like you saw in my pictures on my post they were sitting on the tileDid I leave the soldering iron on?Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
Thanks so much for the guidance. I'll take pictures here in a minute and post just to make sure I'm correct.Comment
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Re: 70in Vizio m70-c3 replaced led's now picture screwed up.
Pictures taken. Now, I have 4 small boards (2 sets of 2connecte by an mid ribbon) attached to the bottom of the panel. These are connected by 4 ribbons coming of the boards on back of TV. Do I peel off the ribbons on the far right of the papan, 5th pic?Attached FilesLast edited by sawilson; 02-14-2018, 10:55 AM.Comment
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?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... -
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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
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https://www.shopjimmy.com/vizio-56-0...-power-supply/
Vizio 55.75J01.001G (91.75J10.004G) Main Board... -
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... -
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...
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