
6-1
Chapter 6
Power Up Self-Test
6.1
Error Codes
To start the radio’s self-test routine, turn the radio on using the ON/OFF volume control button. The
self-test routine checks the RAM, ROM checksum, EEPROM hardware and EEPROM checksum. If
these checks are successfully completed, the radio will generate the Self-Test Pass Tone. If the radio
fails the self-test, it will emit a low-pitch tone.
Error Code
Explanation
Corrective Action
“RAM TST ERROR”
RAM Test Failure
Retest the radio by turning it off and turning it on
again. If the message reoccurs, replace the main
board or send the radio to nearest Motorola Depot.
“ROM CS ERROR”
ROM Checksum is
wrong.
Reprogram FLASH Memory, then retest. If the
message recurs, replace the main board or send the
radio to the nearest Motorola Depot.
“EEPRM HW ERROR”
Codeplug structure
mismatch, non
existence of
codeplug.
Reprogram the codeplug with the correct version and
retest the radio. If the message recurs, replace the
main board or send the radio to the nearest Motorola
Depot.
“EEPRM CS ERROR”
Codeplug
checksum is wrong.
Reprogram the codeplug.
No Display
Display module is
not connected
properly.
Display module is
damaged.
Check the connection between the main board and
the display module.
Replace with a new display module.
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