Power Acoustik PTID-7250N Car DVD Player "7350nrbt" Questions

My Power Acoustik PTID-7350NRBT angle feature isn't working The in car dvd player has a button that is supposed to angle the monitor in 4 different angles.. When I hold the button, It should ...

...m having difficulty customizing my screensvaer. how would i be able to go about that? I have a PTID-7350nrbt I have the PTID 7002 but im sure its the same solution, this is from Power Acoustik: You ...