Tadiran Telecom Coral Sentinel Pro, Installation Procedure And Reference Manual, Page: 64 / 72

54 Troubleshooting Sentinel Pro Installation Procedure and Reference Manual - for Coral IPx / FlexiCom
Replacing the Fuse in a Sentinel
Pro Unit
8
................................................................................................................

Replacing the Fuse in a Sentinel Pro Unit
To replace a blown fuse in a Sentinel Pro unit:
1
Open the Sentinel Pro as described in Opening the Unit Cover below.
2
On the AC/DC Converter card, replace the blown fuse with a fuse of the same
type and rating (4A/250VAC SB).
The AC/DC Converter card layout with the location of the fuse is shown in
Figure 8 on page 17 .
3
Close the Sentinel Pro as described in Closing the Unit Cover , page 55 .
Opening the Unit Cover
To open the Sentinel Pro unit cover:
1
Verify that the power switch on the Sentinel Pro unit is turned OFF.
2
Remove the AC power cord from the Sentinel Pro unit.
3
Using a Phillips screwdriver, unfasten all of the M3 screws that clamp the
cover to the unit.
4 U
sing moderate force, lift the cover from the rear section.
5
Remove the cover completely.
Electrical Hazard. Contact with live internal components could cause shock, burn, or
death. Prior to opening the Sentinel Pro, make sure the unit is turned off and
disconnected from the power.
Electrical Hazard. Contact with live internal components could cause shock, burn, or
death. During system operation, the unit cover must always be closed.