jotron RA-7203C, Operator'S Manual, Page: 84 / 88

Jotron AS| TR7750C: Operators Manual

ERROR CONDITIONS AND CORRECTIVE ACTIONS
Page 6-8
P/N: 84748 ( pre_F )
Front
Failure on the
communication
link to the front
panel
DSP
Failure on the DSP
chip on the main
board
Codec
SPI
RemExp
BiteADC
Failure on one or
more ICs on the
main board
Ethernet
Failure on the
ethernet controller
on the main board
Main Module
RX alarm
Action:
Replace-
RX unit (LRU)
Main module
(LRM)
Probable cause:
Failure on the
ethernet chip
Action:
Replace -
RX unit (LRU)
Main module
(LRM)
Probable cause:
Failure on the
specified chip
Action:
Replace -
RX unit (LRU)
Main module
(LRM)
Probable cause:
Failure on the DSP
chip.
Action:
Replace -
RX unit (LRU)
Check connections
to the front panel,
replace front panel
(LRM)
Probable cause:
Failure on the front
panel or
connectors betw.
front panel and
main board
Figure 6.2-3, Receiver Main module, errors and corrective actions