Motorola MTX9250 用户手册
6-1
Chapter 6
Power Up Self-Test
6.1
Error Codes - Conventional and LTR 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, or a musical tone (selected in CPS). If the self-test is not successful, one
low-pitched tone is heard. Radios with displays are able to display the error codes. The displayed
error codes and related corrections are listed as follows:
hardware, and EEPROM checksum. If these checks are successful, the radio generates two high-
pitched self-test pass tones, or a musical tone (selected in CPS). If the self-test is not successful, one
low-pitched tone is heard. Radios with displays are able to display the error codes. The displayed
error codes and related corrections are listed as follows:
Table 6-1: Power-up Display Codes - (Conventional Radios)
If the error code
displayed is...
then, there is
a...
To correct the problem...
“RAM TST ERROR”
RAM test failure.
Retest the radio by turning it off and turning it on
again. If message reoccurs, replace RAM (U405).
again. If message reoccurs, replace RAM (U405).
“ROM CS ERROR”
Wrong ROM
checksum.
checksum.
Reprogram FLASH memory, then retest. If message
reoccurs, replace ROM (U406).
reoccurs, replace ROM (U406).
“EEPRM HW ERROR”
Codeplug structure
mismatch or non
existence of
codeplug.
mismatch or non
existence of
codeplug.
Reprogram codeplug with correct version and retest
radio. If message reoccurs, replace EEPROM
(U407).
radio. If message reoccurs, replace EEPROM
(U407).
“EEPRM CS ERROR”
Wrong codeplug
checksum.
checksum.
Reprogram codeplug.
No Display
Bad display module
connection or
damaged display
module.
connection or
damaged display
module.
Check connection between main board and display
module or replace with new display module.
module or replace with new display module.