GAI-Tronics ITR1000-001 Model ITR1000-001 Basic Tone Remote Deskset with Line Select User and Installation Manual - Manual (Page 20)

Installation ITR1000-001 Basic Tone Remote Desk Set
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2175 Hz Filter Adjustment
This setting is factory adjusted and should only need readjustment if the notch filter circuitry needs
repairs. Perform the following steps to make adjustments:
1. Cycle power to the desk set.
2. While all LEDs are illuminated, press the
CTL
and the
F1
buttons to enter the
F1
frequency
programming mode.
3. Press the
CTL
and
IC
buttons to cause the desk set to generate a 2175 Hz tone. This tone should be
audible through the speaker.
4. Adjust pot 1 until the tone in the speaker is at minimum volume.
Handset Microphone Adjustment
This adjustment is factory-set at a nominal level suitable for many applications. Make adjustments only
after the receive audio level pot and SWA-8 have been properly set.
1. Locate the handset earpiece volume control, which is accessible through the lower slotted mounting
hole (pot 5) without opening the unit.
2. If adjustment is needed, use a 1/8-inch slotted screwdriver to adjust pot 5 to a comfortable volume
level.
3. Press the
TRANSMIT
button to return to normal operation.
Desk Set Reassembly
After making the required connections, replace the top cover on the desk set and reattach the four screws
in the corners of the back housing.