User Guide

5-13 Flow chart of trouble shooting and Circuit Diagram
5-8 Alert Tone
Abnormal Alert tone
ALERT by Test S/W
Is there alert wave form on the
R110 during alert tone test?
Is there alert wave form on the
Q102 pin 3 during alert tone test?
U116 pin 5 3.3V?
Check the circuit related to Q102
END
Check the circuit related to U116
Yes
No
Yes
Yes
No
No
Buzzer is ok? Change the Buzzer
Yes
No