Service Manual
DS 350 Modular
© PAT
Rev. - 12/18/00 // CSH.
190118_-.DOC
6
Error Code Error
Cause
Elimination
•
Electronic component in the
measuring channel
defective.
•
Replace LMI module(s).
E25
Upper limit value in
measuring channel
"main boom angle"
has been exceeded.
•
refer to E15
•
refer to E15
E19
Reference and/or
supply voltage
defective
•
The supply voltage is being
dragged down by one of the
sensors
•
Check the voltages on the
LMI main board (AGND =
MP0). Check sensors,
plugs and cable, replace, if
need be.
•
Electronic component is
defective
•
Replace LMI main board
•
A/D converter defective.
•
Replace analog board
E29
Reference and/or
supply voltage
defective.
•
refer to E19
•
refer to E19
5.4
Errors 31 and up
Miscellaneous Errors, most of them caused by electronics.
Error Code Error
Cause
Elimination
E31
Error in the system
program
•
The system program PROM is
defective.
•
Replace system program
PROM (PROM No. 0)
E38
System program
and data EPROM
do not match.
•
The system program in the LMI
does not match to the
programming in the data
EPROM
•
Replace the system
program PROM or the
data EPROM (PROM No.
1)
E41
Error in the internal
write/read memory
(RAM) of the
computer
component 80C537
•
Computer component 80C537
defective
•
CPU module defective
•
Processor board defective.
•
Replace computer
component 80C537.
•
Replace CPU module.
•
Replace processor board
with CPU module.
E42
Error in the external
write/read memory,
1st part (RAM)
•
Write/read memory (CMOS
RAM) or processor board
defective.
•
Replace processor board
with CPU module.
E43
Error in the external
write/read memory,
2nd part (RAM)
•
refer to E42
•
refer to E42
E45
Redundancy error
in the A/D
conversion
•
The A/D converter on the
processing board and the
redundant A/D converter in the
CPU 80C537 provide different
results.
•
Replace processor board.
E46
Error in the A/D
converter uPD 7004
of the processor
board.
•
No acknowledgment of the A/D
converter uPD 7004
•
Replace processor board.