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.
A comprehensive Operating and Service Manual. All schematics are complete and easy to read. The PCB drawings and complete parts list are very helpful. I would definitely recommend this manual.
Text excerpt from page 35 (click to view)
Adjusting the sound
You can adjust the sound characteristics to your preference.
Range
�06 (min.) to +06 (max.) �06 (min.) to +06 (max.) R06 (Rear only) to F06 (Front only) L06 (Left only) to R06 (Right only) LOUD ON J LOUD OFF
Adjust the treble.
1
Adjust the front and rear speaker balance.
Ex.: When �TRE� is selected
2
BAL (balance)
Adjust the left and right speaker balance.
Indication pattern changes as you adjust the level.
LOUD*1 (loudness)
Boost low and high frequencies to produce a wellbalanced sound at low volume level.
VOL*3 (volume)
Adjust the volume.
00 (min.) to 30 or 50 (max.)*4
*1 When you adjust the bass, treble, or loudness, the adjustment you have made is stored for the currently selected sound mode (C-EQ) including �USER.� *2 If you are using a two-speaker system, set the fader level to �00.� *3 Normally the +/� buttons work as the volume control. So you do not have to select �VOL� to adjust the volume level. *4 Depending on the amplifier gain control setting. (See page 14 for details.)