I have an old dumb Changhong TV and wanted to set it up to turn on and off automatically when my Roku is turned on. I always have a few smart sockets lying around but the TV defaults to powered off when power is applied.
I found a note somewhere that the service menu can be accessed by pressing the source button on the remote and entering the code 3138. That worked so I went digging through the menus.
Under System Setting>Power ON Mode there were options for On, Off, and Memory. I went with Memory for now but might change it to On later.
While I was in the System Setting page I also noticed an option called Logo Select. I tried setting to off hoping it would get rid of the Creating Easy Life logo on power up.
Both options worked as expected. If I plug it in now, it turns on (assuming it was on when I unplugged it) and it boots up without a splash screen.
BTW, there’s a bunch of interesting stuff in the service menu – even the ability to flip the screen. They seem to have anticipated folks using these as kiosk displays.