Error Codes (Mdc Radios) - Motorola Commercial Series Basic Service Manual

5-2
2.0

Error Codes (MDC Radios)

Turning on the radio starts a self-test routine that checks the RAM, ROM checksum, EEPROM
hardware, and EEPROM checksum. If these checks are successful, the radio generates two high-
pitched self-test pass tones. If the self-test is not successful, one low-pitched tone is heard. Radios
with displays are able to display the error codes. Following are the possible errors and the related
corrections.
Possible Errors
RAM test failure.
Codeplug structure mis-
match or non existence of
codeplug.
Wrong codeplug checksum.
Table 5-2 Power Up Error Codes
To correct the problem...
Retest the radio by turning it off and turning it on
again. If bad tone reoccurs, replace RAM (U0122).
Reprogram codeplug with correct version and retest
radio. If message reoccurs, replace EEPROM
(U0111).
Reprogram codeplug.
POWER UP SELF-TEST