Bought completely dead screen. Just replaced all led strips. I'm getting a thick vertical line right side of screen . Bad display or t-comm issues?
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You live and you learn right?
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Re: Sharp Roku lc-50lb481u
That looks like a tab bond issue at the buffer board. I got one with a vertical bar like that and found the tab ripped off the buffer right there.They call me......."threadkiller"
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Re: Sharp Roku lc-50lb481u
rather "funny" as you are still getting a picture thru the black area unlike the usual totally black vertical strip which usually indicates a tab problem at the bottom of the panel. I think you might have a smd component issue on the bottom edge board.Comment
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Re: Sharp Roku lc-50lb481u
Is this fixable? Or time to part out?You live and you learn right?Comment
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Re: Sharp Roku lc-50lb481u
Strip it to the buffer board, inspect/test components there.Comment
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Re: Sharp Roku lc-50lb481u
Make sure you reseat the ribbon cable from tcon to panel firstComment
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Hi all,
70" LED TV is Sharp LC-70LE650U.
Initial problem was horizontal lines and slow motion lurrs on the bottom left of the screen. So I removed both the left and right ribbon cables from the T-con board and tried to clean it with alcohol and when I put it back, this issue appeared. I tried carefully reinserting the ribbon bon cables but same thing. I checked the traces of the ribbon cables with magnifying glass and everything looks good. I cleaned the small jumper ribbon cable on the left side of the screen which cured the horizontal line and slow motion blurs...07-07-2023, 11:27 PM -
Yes, this is a very old Sharp 19" but I would like to fix it if possible. As you can see from the attached picture there is a single red vertical line.
Yesterday when I turned the set on, it was there for about 30 minutes then disappeared and did not show up again (set was on for another 3 hours or so).
Today it was not there when I powered the set on, then appeared after about 15 minutes. Set has been on for about an hour and it's still there.
From what I have read I'm guessing that this might be the t-con board and not the display itself as it does come and go.
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Hi All
Newbie here so be gentle.
I've used the sticky tape trick and covered one of the pins between the T-con board (T43FHD-CLM3) and display board (ST4251B05-2-XC-4)and I get the attached video, without this pin covered I get blue screen.
Is there a fix for this? Maybe to stop the blue screen (because of a fault on the disply board I presume)?
Many thanks
Mike
...11-10-2024, 09:35 AM -
I'm working on my 27" RCA console TV built in 1990. It had some vertical rollover for a few months that went away after being powered on for a few minutes. I had been meaning to open it up and check it out but it had total vertical collapse before I could get to it.
Now that I have the time I opened it up and found a couple leaky capacitors around the vertical ic. So I figured the caps went bad and cooked the vertical IC.
I got the caps out and replacements on order. But when I took out the Vertical IC I saw that the chip numbers have been almost completely wiped... -
Hello, I have a screen in where sometimes when I open it pop-up vertical multicolor lines (I would say the most of them are green). If I tun off and turn on the screen the lines dissapear or if I leave open the screen after approximately five minutes the lines gone. I measured the below voltages on the main PCB and on the T-CON board and the voltages are the same when it doesn’t display the vertical lines and when it displays the vertical lines. Also, I cleaned all the connectors very good with IPA. I moved back and forth the connectors and the COF tabs but the vertical lines didn't displayed...
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