Turns on/off automatically - no control of TV

Simple answer to volume problem i have found there is a demo button on the tv which automatically turns everything down.

Maybe your tv is in hotel mode. You'll have to contact the manufacturer of your tv to get the service mode code for the remote to change the volume level.

please check touch key board i think it is defect

thanks lal electronics

If you have volume control in the system tray (bottom right corner), double-click it. In Windows XP you will see all the sound controls. Increase all to the maximum level (except microphone).
Use the buttons close to the screen to increase the volume.
There is a volume control in the player you are using. Increase it to the maximum.
If it doesn't help, please let us know.

The volume (+) button on the TV is stuck or soiled if the volume automatically increases when the TV is turned on. To find out:

1. Turn off the TV.
2. Press and hold the volume (-) button on the TV then turn it on.
3. If the volume doesn't automatically increase, you have a stuck button.
4. If it does increase, you have a faulty key control board.
5. In either case, you have to replace the key control board.

To find it out further:
Warning: Beware of electric shock.Please do not proceed if you do not have the skill to do the following.

1. Unplug the TV.
2. Let it stand for 15 minutes to allow voltages to drain completely to avoid the risk of electric shock.
3. Remove the screws securing the TV's back cover and pull it off.
4. Disconnect the cable that runs from the main board to the control key board.
5. Turn the TV on using the remote.
   
6. In this manner you can use the remote control to run the TV while waiting for the control key replacement board.

To do a hard reset of the TV, unplug it and let it sit for 2 hours or long enough to completely drain the internal voltages.

use your camera on your phone and point the remote at the camera lense, you will probably find the remote is lit up and the remote is the problem, button on the remote is stuck and sending signal to the tv all the time until the batteries go flat. if its not that then the tv main av controller board has a fault. there area on the board for remote signal control.

micro switches of this tv are faulty change all

Switches can be cause of this problem but I been experienced SysCon IC defective many times.

bad solder connections and or dirty controls.