10
A. Power-up Display Codes
At power-up, the radio performs cursory tests to
determine if its basic electronics and software are in
working order. Problems detected during these tests are
presented as error codes on the radio display. The pres-
ence of an error code should prompt the user that a
problem exists and that a service technician should be
contacted.
Self-test errors are classified as either fatal or non-
fatal. Fatal errors will inhibit user operation, while
non-fatal errors will not. Use Table 40-11 to aid in under-
standing particular power-up error code displays.
B. Operational Display Codes
During operation, the radio performs dynamic tests
to determine if it is working properly. Problems detected
during these tests are presented as error codes on the
radio display. The presence of an error code should
prompt a user that a problem exists and that a service
technician should be contacted. Use Table 40-12 to
aid in understanding particular operational error code
displays.
IV. ERROR CODE DISPLAYS
FAILURE DISPLAY
14-Character 6-Character
Display Display
FAIL 01/81 F01/81 FATAL External ROM/Flash checksum error Bad ROM data,
Defective ROM
FAIL 01/82 F01/82 FATAL External EEPROM checksum error Bad external codeplug data,
Defective external EEPROM
ERROR 01/02 E01/02 NON-FATAL External EEPROM checksum error Bad external codeplug data
FAIL 01/84 F01/84 FATAL External EEPROM checksum blank Unprogrammed external
codeplug data
FAIL 01/88 F01/88 FATAL External RAM error Defective RAM
FAIL 01/90 F01/90 FATAL Hardware failure Defective IC
FAIL 01/92 F01/92 FATAL Internal EEPROM checksum error Bad internal codeplug data,
Defective microcontroller
ERROR 01/12 E01/12 NON-FATAL Internal EEPROM checksum error Bad internal codeplug data
FAIL 01/94 F01/94 FATAL Internal EEPROM checksum blank Unprogrammed internal
codeplug data
FAIL 01/98 F01/98 FATAL Internal RAM error Defective microcontroller
NOTE
Due to the nature of fatal ROM & RAM errors, it may not be possible to present an error code on the display. In these
cases the radio will attempt to display the appropriate error code, generate an illegal mode tone for one second and then
reset its microcontroller.
Table 40-11. Power-up Display Codes
TYPE OF
FAILURE
DESCRIPTION
POSSIBLE
SOURCE
FAILURE CODE
14-Character 6-Character
Display Display
FAIL 001 F001 Synthesizer out of lock Bad frequency data in codeplug; defective synthesizer
FAIL 002 F002 Selected Mode (Zone/Channel) Bad codeplug data
codeplug checksum error
FAIL 100 F100 Incompatible trunking Trunking hardware decoder disabled in codeplug;
software and hardware old SLIC IC version
FAIL 101 F101 Incompatible MDC1200 MDC 1200 hardware decoder disabled in codeplug;
software and hardware old SLIC IC version
Table 40-12. Operational Display Codes
DESCRIPTION POSSIBLE SOURCE
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