Nera Inmarsat-c Service Manual page 81

TROUBLE:
EEPROM ERROR.
TROUBLE:
Invalid MES ID,
This equipment is
defected.
Please contact
Nera SatCom.
Note)
MES ID (Forward ID and Return ID) is memorized to EEPROM (U15) on RF
CON/CPU board. The serial number is needed when ordering the EEPROM for
the ship.
When detecting the error of
EEPROM (U15) on RF CON/CPU
board.
When the FW/RT ID memorized to
EEPRPOM (U15) on RF CON/CPU
board is deleted.
5-7
1. Changes EEPROM (U15).
2. Changes RF CON/CPU
board.
Changes EEPROM
(U15).
5.2 Self test