Error Messages - Welch Allyn Grason-Stadler GSI 17 Series Service Manual

6.10 ERROR MESSAGES

The GSI 17 will display a Diagnostic Error Message should a
condition exist which may cause incorrect or unreliable operation
of the instrument.
the instrument will be aborted and the instrument will stop
operating.
operator by displaying an abort code on digit
HL Display.
"Exx" where xx is a 2 digit abort number to identify the type of
abort.
When a system error occurs which causes the instrument to halt
operation, the following will occur:
1. If the channel i
All transducers will be disconnected from the channel.
2.
The Watch Dog (COP) timer and clock monitor will be
3.
disabled.
The HL dispiay will display the error code.
A * .
5. The CPU will be put into a state which will halt its
operation and not allow it to resume unless the power is
cycled.
The system error conditions to be tested for and their codes are
as follows:
Error Code
E01
E02
E03
E04
E05
E06
_
I f an error is detected normal operation of
The condition of the error will be indicated to the
The error message will be displayed in the format of
s "ON" it will be turned OFF.
Probable Cause and Solution
EPROM FAILURE - Indicates the EPROM checksum was in
error at power up.
U 5 0 5 then U 5 0 3
replacing U505 or U503 then check for Buss loading,
open traces, or shorted traces between U505 and
U503.
RAM FAILURE - If not recoverable replace U503.
WATCH DOG TIMER ERROR - If not recoverable replace
U 5 0 3
CPU CLOCK FAILURE - If not recoverable replace
U503.
UNDEFINED INTERRUPT ERROR - If not recoverable
replace U503 then U505.
OPCODE TRAP ERROR - If not recoverable replace U503
then U505.
s
If not recoverable replace
If the problem is not resolved by
5 4 A
1 , 2, and 3 of the