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 22 (click to view)
Operating the radio � FM band
1. Fully extend the telescopic aerial. 2. Press Standby button to switch on the radio. 3. Press the Band button to select the FM band. 4. Press and release Tuning control +/- button to tune to required stations. Display will show ST when a stereo station is tuned. Long press Tuning +/- button for more than 0.7 seconds, radio frequency will automatically increase/decrease until next station of sufficient strength has been found. 5. Adjust the Volume Control to the required setting.