
Chapter 4: Front Panel Controls
The controls on the front panel of the GSI Pello are shown below.
Power
The green LED, located in the upper right portion of the front panel, is
illuminated when mains power is supplied to the GSI Pello. This indicates that
the power switch is in the on position.
Stimulus Intensity Level(s)
Test Mic, Input A and Input B Level Controls, Talk Forward
— To calibrate
the test signal for the test microphone or the external devices, use the Select
button to activate the LED associated with the device. Then use the left and right
buttons to adjust the signal level until an indication of 0 dB on average is
obtained on the selected channel VU meter.