Re: e701i-a3 no picture but backlights
Going from ground to each of the contacts on the panel where the ribbon plugs in? What am I looking for? Thx...
suprteacher
Member
Last Activity: 10-10-2023, 08:57 AM
Joined: 11-28-2019
Location: Flushing, MI
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Re: e701i-a3 no picture but backlights
No I did not. No physical damage to the other end....Leave a comment:
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Re: e701i-a3 no picture but backlights
I tried reversing the cables with the ends that go to panel now going to tcon board and the end that used to go to tcon board now going to the panel. I get the exact same result.
I then tried fixing the ribbon cables by 'trimming' the problem area off the end. I then seated the cables back in and have the exact same result.
I am able to jiggle one cable to get the middle bar to change colors, but it never brings up a picture. The new messed up section on the right side is now stuck in that multicolored...Leave a comment:
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Re: e701i-a3 no picture but backlights
I didn't go that far, but I did need to get it down as far as the guy did on his video on pg 49.
You are correct. I only went down to where I could safely remove the tab tapes
I took a couple pics. First one is what tv looks like now. Identical area of both sides of screen (just different colors). Next couple pics are of the 2 ribbon cables where I see what looks like a problem. Last pic of of the slot where the ribbon cable goes into the LCD from the tcon board....Leave a comment:
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Re: e701i-a3 no picture but backlights
I'll be completely honest..this is my first tv repair and haven't really taken as much care as needed. I am an elementary teacher by day and tinkerer by night..usually dealing with small engines. The delicacy needed for TV's is much different as I'm learning.
I've been undoing the clamp on the ribbon cables and pulling down on them instead of up. When I put them in I push them up then clamp down. Another area where I show my being a novice at this.
Glad I got a free m series instead of the e since...Leave a comment:
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Re: e701i-a3 no picture but backlights
I just messed with it again and am back to the red and black lines. I am seating the cables using a magnifying glass.
I tested the mosfit and get 15.6v on the top. 15.6v on the right bottom and 0v on the left bottom.
I was tapping on the tcon to panel ribbon on the offending side and it would flicker to get the whole vertical line red. Lost for now...Leave a comment:
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Re: e701i-a3 no picture but backlights
Wondering if it's a bad cable? Tried switching them around to see if it was a bad cable or bad panel on the bottom. Not sure if I screwed everything up by doing that.Leave a comment:
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Re: e701i-a3 no picture but backlights
I thought that too. I cleaned them and reseated them. Now I get this???
[url]https://drive.google.com/file/d/1OQLv4AQk1Pj5A7parZfBaHbn8pcNX54x/view?usp=drivesdk[/url]Re: e701i-a3 no picture but backligh...drivesdk[/url]Leave a comment:
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Re: e701i-a3 no picture but backlights
Here are a couple pics....Leave a comment:
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Re: e701i-a3 no picture but backlights
Hi guys-
I just fixed up a Vizio m701d-a3r. Same problem as the majority of others, left panel was bad.
I now have the middle of the screen with 2 huge vertical bars covering up. I will post a pic once I get down to the dungeon to take one. Curious as to whether this is bad tcon or bad bottom lcd?Leave a comment:
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