Motorola HT750-LS Supplemento al manuale di servizio di base - Pagina 34
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6-2
6.2
Error Codes - Privacy Plus
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 presence 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, non-fatal errors will not. Use Table 6-2: Power-up Display Codes to aid in
understanding particular power-up error code displays.
Failure Display
FAIL 01/81
FAIL 01/82
ERROR 01/02
FAIL 01/84
FAIL 01/88
FAIL 01/90
FAIL 01/92
ERROR 01/12
FAIL 01/94
FAIL 01/98
NOTE Due to the nature of fatal ROM & RAM error, 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 microcon-
troller.
Table 6-2: Power-up Display Codes
Type of
Failure
FATAL
External ROM/Flash checksum error
FATAL
External EEPROM checksum error
NON-FATAL
External EEPROM checksum error
FATAL
External EEPROM checksum blank
FATAL
External RAM error
FATAL
Hardware failure
FATAL
Internal EEPROM checksum error
NON-FATAL
Internal EEPROM checksum error
FATAL
Internal EEPROM checksum blank
FATAL
Internal RAM error
Description
Power Up-Self-Test
Possible Source
Bad ROM data, Defective ROM
Bad external codeplug data,
Defective external EEPROM
Bad external codeplug data
Unprogrammed external code-
plug data
Defective RAM
Defective IC
Bad internal codeplug data,
Defective microcontroller
Bad internal codeplug data
Unprogrammed internal code-
plug data
Defective microcontroller