Hello. I am trying to figure out how to take apart a Sharp LC-50Q7030U TV. It has the common structure of a plastic cover that provides access to the main board and PS that covers about 1/2 of the back of TV lower middle. The rest of the TV is basically a metal housing that protects the screen. I am having trouble figuring out how to take it apart to get to the screen. Does anyone have access to the service manual or experience on how to take the metal housing apart for access to the panel? I need to replace the panel with a good spare that I have..thanks in advance for any assistance..
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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.... -
Hi all, Im working on a board, that my customer brought to another shop, and smeared liquid metal all over the board.
The laptop powers on, then shuts off. I noticed traces of Liquid Metal near the edge of the CPU, but I fear some maybe underneath.
Has anyone ever tried Ultrasonic cleaning, or compressed air to remove or agitate the liquid metal?07-11-2025, 01:47 PM -
This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.
I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match... -
I have a Sharp Aquos LC-80LE757U that randomly made a loud popping noise when when watching TV one day. We found that the fuse blew and the thermistor. We ended up replacing the entire power supply board and have also replaced the TCON board. Now as soon as I plug the TV in it lights up and has the Sharp logo flashing on and off of the screen. If I unplug the ribbon cable from the TCON board to the main board I get the 2 long 5 short error code. Any ideas on where to go from here? We've tried resetting it but nothing has worked. If we plug it in and let it cycle through the flashing of the Sharp... -
Hi folks!
I have a LC-80LE661U that had some interesting issues.
Initially, it would come on and show the sharp logo and would show normal static before shutting off.
I started troubleshooting by disconnecting the led lighting strips and turning it on. It would do the same thing - come on, show the sharp logo and shut off. After reading, it was suggested to replace the main board. That was replaced and the same symptoms resulted. After this and some reading, the parts cannon got loaded up. I replaced the power board, same issue. Replaced the Tcon board and now it...