Repair of Detectors
Gem-5 User’s Manual 359
Replacing a Damaged Detector
Locate the detector to be replaced as indicated by the Detector Faults screen (see
Operations Section for details).
Switch power OFF!
It is preferable to switch off power to the unit using the system main AC power
keylock switch located just below the Alarm Test switch (see Figure 6 on page 11)
before performing any maintenance activity involving cable disconnects or removal
of boards or detectors. For extra precautions, remove AC power by unplugging the
monitor from the external AC power source.
Figure 150 Open Door to Access Detectors GEM-5.