Sharp LL - Recent Questions, Troubleshooting & Support

Sounds like the back lights are burned up. That will make it difficult to see. There are videos to show you how to replace them. But I don't know you expertise.

the monitor circuit might have a faulty components, usually a busted capacitor needs a replacement

Windows 8 especially and sometime Windows 10 may have a black screen during an update for over 15 minutes with no indication that anything is happening. Try complete power down by holding the power key for 10 full seconds. Consider unplugging power for a few seconds after that as well. Re-connect power, press power button to turn on the computer then if the screen goes blank, give it a half hour before looking for another solution... it may come back to you.

Get the specs for the connector online so you can see what the connection for each pin is then try testing for continuity (your gonna need a meter) so you can see if there are any interruptions in the circuit

go to the add a--- section under the control panel and right click on the monitor/s click on the properties tab and then click on the compatibility tab tick the box and click on the os you want for that computer click apply and ok in that properties you will also find a drivers tab , click on that and then the driver update line it will search and download the latest drivers or come back with a message that the driver in use is the most appropriate one

Open the case. There is a button cell inside. Remove that for about 12 hours with the CCTV disconnected from the mains. The password should be reset.

With the unit turned on, turn off the lights and with a flash light shinning at the LCD screen, do you see any images ? If so, the Back lights or inverter have gone south. That is a cheap 17" unit and would not be worth the repair cost.

Here's a link to the manual, the reset instructions are on page 35: files.sharpusa.com/.../LCDTVs/Manuals/tel_dow_LC80LE632U.pdf

Open monitor and look at power supply board for capacitors which are "balooning" or deformed in any way. These look like cylindars on the board. These tend to dry out and make what you are describing occur. Replacing them usually fixes about 80% of the problem you are describing. Those parts run about $0.25 to $0.75 each.. well worth trying, right?

yes