Chapter 5 power up self test, 0 error codes, Chapter 5 power up self-test – Nikon RADIUS CM200 User Manual
POWER UP SELF-TEST
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
Table 5-1 Power Up Error Codes
To correct the problem...
RAM test failure.
Retest the radio by turning it off and turning it on
again. If bad tone reoccurs, replace RAM (U0122).
Codeplug structure mis-
match or non existence of
Reprogram codeplug with correct version and retest
radio. If message reoccurs, replace EEPROM
Wrong codeplug checksum.