I need help trying to turn off a touchscreen computer


I need help turning off a touchscreen computer because I cannot seem to find the correct signals to do so online. The touchscreen displays’ name is “Vestel” in Turkey.
If anyone knows how to turn them off/on please let me know.

Photos: https://imgur.com/a/LIZhvSn

Based on the name, you could start with …Lucaslhm/Flipper-IRDB…Vestel/Unknown_TV…

Didn’t seem to work. Any other things I can try?