USER MANUAL FOR HARDWARE REV 1.0
06-JUN-2019
PAGE 5
3.2.1
INPUT AUDIO ADJUST
The input audio adjust is used to adjust the amplitude of the volume coming from the receiver. This is
an 18 turn, 10kΩ potentiometer, multiple turns are required to effect a large change in amplitude, while
fractional turns yield fine resolution adjustments.
To restore the default audio position from the factory, this potentiometer should be rotated fully
counter clock-wise until it clicks, then three (3) full turns clockwise. Note some parts have a very soft
click, if you have one of these, ten full turns CCW will ensure it is set correctly before moving it
clockwise.
The input audio should be approximately 0.4 volts peak to peak as measured at R2.