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Digital
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eather
Radar
System
A28-1146-102-00
In-Flight Troubleshooting
7-5
Fault Code and Text Fault Relationships
Table 7-2 lists the relationship between:
D Fault codes (FC)
D Pilot/Maintenance Messages
D Fault Name/type/description/cross reference (XREF).
FC XREF FAULT DESCRIPTION FAULT NAME PILOT
MSG
LINE
MAINT
FAULT TYPE
4808 Startup Code CRC
4809 IOP Code CRC
01 4810 DSP Code CRC FLASH CRC RADAR
FAIL
PULL
RTA
POWER ON
4904 Config Table CRC
4905 FPGA Firmware CRC
4846 2V ADC Reference CONTINUOUS
4903 IOP Ready IOP RADAR
FAIL
PULL
RTA
02 4908 Int ARINC 429
Loopback
POWER ON
4910 Spurious ARINC
Interrupt IOP RADAR
FAIL
PULL
RTA
CONTINUOUS
4913 ARINC 429In Coupling
IOP RADAR
FAIL
PULL
RTA
POWER ON
4806 EEPROM Timer CRC FLASHCRC POWER ON
03 4811 EEPROM POC RADAR
FAIL
PULL
RTA
POWER ON
4842 StabTrim CRC EEPROM REDO
STAB
TRIM
REDO
STAB
TRIM
POWER ON
4912 Calibration CRC IOP RADAR
FAIL
PULL
RTA
4812 IOP Mailbox
04 4818 DSP Mailbox MAILBOX RAM RADAR
FAIL
PULL
RTA
POWER ON
4813 Timing FPGA RAM
4814 Timing FPGA REG
05 4815 IO FPGA RAM FPGA RADAR
FAIL
PULL
RTA
POWER ON
Text Faults
Table 7-2 (cont)