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Willing to help but I'm no expert. -
Re: LCD & LED TV Panel Removal with Suction Cups
A few people on the forum have recomended the suction cups they do seem a good idea too be honest on the larger lcd panels. -
not a bad idea
That probably would've made things easier the last couple of times that I had to remove an LCD panel. As long as the suction cups can't damage the panel and don't cost too much, I'd consider picking some up for next time.Comment
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Re: LCD & LED TV Panel Removal with Suction Cups
i was thinking something like this
http://www.ebay.co.uk/itm/2720573431...%3AMEBIDX%3AITComment
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Re: LCD & LED TV Panel Removal with Suction Cups
I've got a pair of those. Used to remove the glass front off an iMac, I'd never thought to use for removing an LCD screen.Comment
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Re: LCD & LED TV Panel Removal with Suction Cups
I know that this has been discussed on the Forum and used by some but I thought that the video, seeing it done, would be informative.Willing to help but I'm no expert.Comment
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Risk with Suction Cups
well this method had high risk if the Panel 2 years old or more, the way to hold it up with this Suction Cups Vacuum could release the under LCD layer and got air in.. , and i saw allot even at new TV when they got transport damage..Comment
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Re: LCD & LED TV Panel Removal with Suction Cups
http://www.ebay.co.uk/itm/4-suction-...-/182246701807
that looks coolComment
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49UJ6500 LCD panel has a lighter band on top when first powered on. Goes away (or gets much fainter) after TV on for a few min. After powered off for awhile and power back on, same band appears. If powered on immediately after powering off, no or much fainter band. Running the latest firmware.
Disassembled the TV and lifted the LCD panel during testing. Band is on the LCD panel (can see the band on the panel as I lift it slightly) Backlight is perfectly even at the top edge. Double checked LCD panel alignment in the frame and is perfect but since band moved with the panel, its on... -
TV flashes backlight then reboots over and over. no image. Client said it used to have image for a bit before rebooting. Got worse over time.
tcon is built into mainboard.
Only one cable goes to panel boards.
there is a cable from one panel board to the other that links them.
cost cutting measure that results in us having harder time to diagnose.
removing the link to the second panel board allows TV to stay on with stable backlight but no image.
used cut off tape method to mask 1 maybe 2 pins on the side of the cable that goes to that second panel board.... -
I had a the above tv qn55q60r that had a bad panel but everything else good. I had another panel here from un55nu6900 with bad leds and melted diffusers.
I put the nu6900 panel in and powered it up and it does work but there are lines vertical lines.
I was trying to change the panel type in the service menu but don’t see my exact panel. Anyway to fix this or someone have similar experience.
the clear picture is the panel type from the service menus on the nu6900. The other 1 is the panel type that was set for the q60r with the bad panel....01-13-2024, 01:57 PM -
I have a TCL 55P6US with sound and backlight but no picture. This model does not have a T-CON board, and the right (rear perspective) panel board is fed from the left panel board. I have not been able to induce any change by disconnecting the secondary panel board or the tape cut-off method on the primary board.
There are a bunch of voltages missing on the panel boards. I can't find any shorted caps of the panel boards, and all of the missing voltage rails read in the kiloohms, which leads me to suspect the issue may lie on the circuit board, rather than a short in the panel.
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Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached....
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