Thanks to Owner-Manuals.com! This manual was exactly what I needed. As Amana was purchased by Maytag and later by Whirlpool, there was no way to receive it from their websites. I was lucky to find this resource.
Great to be able to set channels again, on an old but stoll fine working TV
Text excerpt from page 341 (click to view)
Addendum to explain how to exit PICTURE MENU LOCK MODE
If you try to adjust PICTURE MENU and the following message is displayed on-screen, please follow the procedure below to exit this mode.
PICTURE MENU LOCK MODE REFER TO OWNER�S MANUAL TO EXIT THIS MODE
Procedure � Press ACTION and CH mode.
buttons on the TV front panel simultaneously to exit this