Power Up Self-Test; Error Codes - Motorola P Series Basic Service Manual

1.0

Error Codes

Turning on the radio using the on/off volume control starts a self-test routine which 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 self-test is not successful one of
the following error messages will be displayed and a 300 Hz tone is heard.
ÒRAM ERRÓ for <RAM Test Error>
ÒROM CSÓ for <ROM Checksum Error>
ÒEPM ERRÓ for <EEPROM Hardware Test Error>
ÒEPM CSÓ for <EEPROM Checksum Error>
NOTE A radio without a display emits only the 300 Hz tone if it fails the self-test.
Error Code
ÒRAM ERRÓ RAM Test Failure
ÒROM CSÓ ROM Checksum is
wrong.
ÒEPM ERRÓ Codeplug structure
mismatch, non
existence of
codeplug.
ÒEPM CSÓ Codeplug
checksum is wrong.
No Display Display module is
not connected
properly.
Display module is
damaged.
300Hz Tone 1. RAM Test Failure
(Radio without
display) 2.Codeplug Check
sum is wrong.
3. ROM Checksum
is wrong
Explanation
Retest radio by turning it off and turning it on again. If
message re-occurs, replace main board or send radio to
nearest Motorola Depot.
Reprogram FLASH Memory, then retest. If message
re-occurs, replace main board or send radio to nearest
Motorola Depot.
Reprogram codeplug with correct version and retest radio. If
message re-occurs, replace main board or send radio to
nearest Motorola Depot.
Reprogram codeplug.
Check connection between main board and display module.
Replace with new display module.
Retest radio by turning it off and turning it on again.
Reprogram Codeplug and retest.
Reprogram FLASH Memory, then retest.
If message re-occurs, replace main board or send the radio to
the nearest Motorola Depot.

POWER UP SELF-TEST

Corrective Action
Chapter 6