Product Info

TUNING PROCEDURE TR4022
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CHECKPOINT SYSTEMS, INC. CONFIDENTIAL AND PROPRIETARY INFORMATION, FOR INTERNAL USE ONLY.
Rev. 00 Page
11
The system will not operate in any of the above ‘ERROR’ conditions. If an error
condition is indicated the transmitter will be shut down and the system will not ‘pass through’ the
sync pulse.
5.0 POTENTIOMETER ADJUSTMENT
The table below provides all of the adjustment pots on the TR4022 board along with their
function and how to adjust each pot. The factory should set all of these pots and field adjustment
should not be necessary.
Table 6: Definition of Adjustment Potentiometers
Label Function Proper Adjustment
TX1 PWR (R38) 2-loop Antenna Power
(TX1)
DO NOT ADJUST HIGHER, SET BY FACTORY
(to decrease power turn R38 clockwise)
TX2 PWR (R149) 3-loop Antenna Power
(TX2)
DO NOT ADJUST HIGHER, SET BY FACTORY
(to decrease power turn R149 clockwise)
BASEBAND GAIN
(R89)
Baseband Gain Usually set fully CW (maximum gain) Adjust for a maximum of
1.5V on screen 1
VOLUME (R46) Sonalert Volume Adjust to desired level (CW-increases volume)