Manual was complete and available promptly, since I had lost my original manual. Very good response.
Text excerpt from page 20 (click to view)
Select the mode or sound frequency to be adjusted by using the up/down cursor buttons.
Once highlighted, adjust the chosen controls by pressing the right/left cursor buttons.
You have a choice of 3 individual â€˜modesâ€™ which can be adjusted to suit personal needs. Set a complete range value (detailed below) and your TV will remember the settings in the appropriate mode number.
120Hz bass range
This range controls the bass sound from your television - if the bass sound from your TV is too 'boomy' turn this control down.
500Hz mid bass range
This range is the basis of your sound - if your televisions sound is to rich, or not rich enough, adjust this control to enhance the TV's sound.
1.5kHz mid range
Use this control to adjust the mid-range voice area of your TV's sound.
5kHz mid high range
When this control is increased it emphasises the flute and string instruments of your TV's sound - when decreased it has a soothing effect on the sound.
10kHz high range
audio equaliser controls program, sound and vision adjustment
The sharp sound of triangles and cymbals are emphasised if this control is increased.
To return to normal TV operation press the television button on your handset.