DoorKing 1812 Plus - Manual (Page 37)

SECTION 3 – ADJUSTMENTS
Speaker Volume
The speaker volume potentiometer is labeled SPEAKER VOL on the control board. The speaker
volume should be adjusted for adequate sound. Adjusting the speaker volume too loud could cause
feedback from the microphone.
1. Open the front of the telephone entry system and locate the speaker volume adjustment.
2. Push the "Push To Call" button to place a call to the resident. While they are talking,
adjust the speaker volume potentiometer for adequate sound. To increase the volume
rotate the potentiometer clockwise, to decrease the volume rotate the potentiometer
counter clockwise.
Microphone Gain
The microphone gain potentiometer is labeled MIC VOL on the control board. This adjustment
increases or decreases the loudness in the telephone handset in the house.
1. Open the front of the telephone entry system and locate the Mic Vol adjustment.
2. Push the "Push To Call" button to place a call to the resident. After they answer, adjust
the microphone gain and ask the resident to let you know when the loudness in their
telephone handset is set to a comfortable level.
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Mic
Vol
1 2 3 4 5 6 7 8 9 1011
Speaker
Vol
Keypad
Master Code
Push Button
Master Code
LED
Phone Line In Use
LED
Microphone
Gain Adjust
Speaker
Volume
Adjust
1812-161-E-1-10 Page 37