Hello, I would like to assist you with your question today. Please remember to click ACCEPT after you are satisfied so I get credit for my time.
Does this happen in all input modes (tv, xbox, dvd, etc)?
It appears to be
let me confirm
There is not a physical reset button, though unplugging the set from power (at least 4 hours, preferably up to 48 hours) can clear the memory and force a reset of the system.
I unplugged it (like a router or other) for 5 mins..
but that did nothing
you're saying unplug it for 4 hours?
I was hoping for something a bit more technical than that, but ...... it's hard to troubleshoot remotely....
so that's it? wow, what a waste of $21
That is really the only thing you can do yourself. There are a lot of capacitors in the tv, and unplugging for 5 min is not enough to dissipate.
If that does not help, then this would be a symptom of a defective control board (which is how the on screen menus are generated) and the set would need to be replaced. Though based on the age/type of the set, repairs are not likely practical. If you'd like to pursue repair anyway, let me know the full model number of the set and your zip and I can try to give you a more detailed estimate or refer you to a local shop that can take a look at it.