11
?
Noise
+
Check if the circuit is broken. (Change the circuit)
Check if the connector is moist or rust (Change the connector)
?
Ring once then disconnect when receive a call. Dialing function is available
+
Check if connector is in a moist environment.
Check if too many extensions are used together or the quality of extension is not good
enough (Change the bad extension)
?
LCD become dim
+
Check if LCD contrast is properly set or battery is in low-battery state. (Adjust LCD contrast,
if the LCD is still dim, replace the battery.)
?
No ring
+
Check if the RING is in the OFF state, reset it.
?
Most of the functions failed
+
Check if the battery is in low-battery state. (Change the battery)
If battery is in normal state (Remove the battery, unplug the lines and reinstall after 10
minutes)
NOTE:
Due to continuous product development all features and specifications are subject to
change without prior notice.
Summary of Contents for 3604N
Page 3: ...3 LOCATION DISCRIPTION...