LG GR-349STQA.CTIQRAN - Page 23

(3)BUZZER OPERATION CHECK
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DISPLAY FUNCTION BUTTON RING DOOR OPEN ALARM
(DING~ DONG~) (SCREECHING)
OFF
IC1 (No.14 Pin)
ov
IC1 (No.13 Pin) ov
MEASURING
POINT
CONDITIONS
0.05s 0.2s 0.1s 1s
0V
5V
0V
5V
0V
5V
0V
5V
0.5s 0.5s
2.66khz (DING~) 2.232khz (DONG~)
3.1khz OFF