Motorola HT1250-LS+ - Chapter 6 Power up Self-Test; Error Codes - Conventional and LTR Radios; Power-Up Display Codes - (Conventional Radios)

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 the error code(s) is displayed. 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).
“ROM CS ERROR” Wrong ROM check-
sum.
Reprogram FLASH memory, then retest. If message
reoccurs, replace ROM (U406).
“EEPRM HW ERROR” Codeplug structure
mismatch or non
existence of
codeplug.
Reprogram codeplug with correct version and retest
radio. If message reoccurs, replace EEPROM
(U407).
“EEPRM CS ERROR” Wrong codeplug
checksum.
Reprogram codeplug.
No Display Bad display module
connection or dam-
aged display mod-
ule.
Check connection between main board and display
module or replace with new display module.