eBay vendors sell boards from sets that were scrapped because they didn't work. The only place to buy boards is Shop Jimmy.
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Unfortunately, you cannot convert an analog TV to digital simply by changing settings. The transition from analog to digital involves hardware changes. If you have an older Sharp TV without a built-in digital tuner, you may need an external digital converter box or consider upgrading to a newer TV with a built-in digital tuner to receive digital broadcasts.
The first thing is to always remove the batteries, wait 15 minutes and replace the batteries with fresh new ones.
If that doesn't work you can try cleaning the remote with a wet cloth, and then switch cleaning spray to ensure the problem isn't a stuck key and dirty switch contact.
If that doesn't work, just order a copy facsimile remote made for the television. They are cheap enough and need no programming
https://www.fixya.com/support/r29872378-universal_remotes_no_facsimile_remote
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the reason as to why your sharp dvd player isn't working is because there may be a disk stuck inside, try pressing the STOP button, unplug it, press EJECT while plugging it
From the past history of Hisense brands of TV's the power board very seldom gives issues, they build them quite well, the only way to troubleshoot this issue is with a multimeter, look for the power on pin on the power supply connector going to the main board, you need to see about 3.5 vdc there when you turn the set on, I think you will see the voltage there for a few seconds then drop to almost 0, if you find this it's the eeprom that's lost it's data, this IC is located on the main board, there are 2 fixes, one is to replace the IC the other is replace the board. The chip costs under $20 but it's somewhat difficult to replace. Here is the listing for the IC https://www.shopjimmy.com/sharp-dkeymf905fm04-kf905-qpwbxf905wjzz-main-board-loc-ic8401-eeprom-only/
This would mean that either a CABLE BOX, SAT BOX, COAX CABLE, HDMI CABLE, ETC may not be working properly, something is loose, or needs reset. -Reset ALL components by unplugging them for 5 minutes including the TV. -Be sure all COAX CABLES and HDMI CABLES are tight and properly connected. -If you CAN pull up the TV MENU when you have the black screen, update your TV’s firmware to be sure your TV is up to date and rule out the TV as the problem. NOTE: If the TV now works and there is no BLACK SCREEN, the issue was either a loose cable, old TV firmware, or a component that needed to be reset and the issue is now resolved.
You will need to preform a power drain cycle on your TV here.Unplug your TV from the power source.Press and hold the power button for about 10 to 30 seconds.This will help drain all of the TVs residual power. Now plug the TV back into the power sources.
How exactly did you test the backlight strips Mike? This set is made by Hisense, they have the tolerances really tight on the backlight inverter current, in our shop we have seen many times on Hisense sets with no backlights not working, we test the lamps with our tester and all worked, however when new strips were installed the set worked as it should. One thing I want to verify, when you say black screen, you're not talking about a real dark blue screen where the lamps work and you're missing video? Reason I ask this is you said you replaced the t-con board, that's something that would be replaced if you had backlights and no video as the tcon has NOTHING to do with the backlights
Hey, The Sharp LED Backlight TV model 2T-C45AD8X's back cover can be opened by performing the following steps:
1) Cut the TV off from the power supply.
2) Place the television flat on a soft surface.
3) Using a screwdriver, find the screws that are attached to the back cover's borders.
4) Carefully remove the back cover to have access to the internal parts.
Thanks!
You need new LED backlight strips, a power/inverter board can cause this as well but on Sharp-Hisense sets it's been the backlights that are bad in most sets we repair in our service center.
