Was asked to look at a guys special force pin.Whilst there i asked him why he had basic sounds,and was told "thats how i bought it". So in sound test it makes a sound.Pressing the red button on the sound board it makes a chime sound.Using the keypad in sound adjustments it dont matter whether you put in 0,1,2 or 3 you get sounds with no background which is option 2. I swopped the keypad off my Strange Science in case it was that it made no difference.Any ideas please. Thanks Ken