21
7.0
TROUBLESHOOTING
The LED status indicators are an important troubleshooting tool and
should be checked whenever a problem is suspected. When an alarm
condition exists, the transceiver creates an alarm code that can be read
on an HHT connected to the radio’s
DIAG(NOSTICS)
port. These codes
can be very helpful in resolving many system difficulties.
Specific information about interpreting LED and alarm codes is pro-
vided in the Troubleshooting section of the Installation and Operation
Manual shipped with your transceiver.
8.0
TECHNICAL REFERENCE
This section contains instructions for replacing assemblies in the Redun-
dant Transceiver Chassis in the event a component fails:
8.1 Replacing Power Supply Modules
The Redundant Transceiver Chassis power supplies (03-1143A12) are
each held in place with two knurled thumbscrews at each side of the
module. To remove a power supply, loosen the two captive screws and
slide the unit straight out. (There are no cables to disconnect, as the mod-
ules are fitted with in-line connectors.)
To re-install these modules, make sure that the slides are properly
aligned with the guide slots on the chassis, and push straight in. Tighten
the thumbscrews to secure the assembly.
8.2 Replacing Other Assemblies
The Switchover Logic Board (03-3306A01), Battery Control Board
(03-3362A01) and Indicator Board (03-3307A01) are all held in place
with Phillips screws. To remove any of these assemblies, disconnect all
connectors from the board and remove the mounting screws. The boards
can then be removed from the chassis.
Table 5. Replacement part numbers
Power Supply
03-1143A12
115/230 VAC
03-2613A02
18-36 VDC
03-2613A03
36-75 VDC
03-2613A04
10.5-16 VDC
Switchover Logic Board
03-3306A01
Battery Control Board
03-3362A01
Indicator Board
03-3307A01
Backup Battery
28-1575A03
Summary of Contents for P20
Page 1: ...Installation and Operation Guide Redundant Transceiver Chassis WDS P20...
Page 29: ...NOTES...
Page 30: ...NOTES...
Page 32: ......
