Merlin 3070 Service And Maintenance Manual page 85

TROUBLE ON SEVERAL TELEPHONES
Lights
Voice terminal red and green lights do not flash alternately in the test mode
Symptom:
(T setting of T/P switch).
Possible Cause
1 . The red Warning light on the
Power Module in the control
unit may be on.
2 . Control unit is defective.
B4-4
Recommended Action
1 . Reset the control unit by setting the Power
Module On/Off switch to Off, then to On.
2 . If the problem persists, the control unit
probably needs repair.