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RF-5800H 150-WATT COMMUNICATION SYSTEM
GENERAL INFORMATION
1.3.2 Level II
The maintenance technician repairs the radio system by utilizing a System (Level II) manual to fault isolate to the
faulty unit (for example, receiver-transmitter, power amplifier, antenna coupler, etc.). The faulty Line Replaceable
Unit (LRU) is replaced with a spare and sent to Maintenance Level III.
1.3.3 Level III
The faulty unit is serviced at a facility that has support equipment available, typically a hot test bed radio system.
The suspected faulty unit is inserted into the hot test bed radio system and troubleshot down to the faulty assembly
using a Maintenance (Level III) manual. The faulty Shop Replaceable Unit (SRU) or module is replaced with a spare
and passed to Maintenance Level IV.
1.3.4 Level IV
The faulty SRU or module is returned to Harris/RF Communications for repair. If Level IV maintenance capabilities
are available on-site, the maintenance technician can identify the faulty component on the SRU using a Depot
Maintenance (Level IV) manual that outlines the electronic maintenance techniques and test fixtures necessary to
repair the SRU.