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8-2 Chapter 8: Error Messages
Model 801GC, 801GF & 801GX ¥ Rev. A
System Errors
This section discusses system error messages that
may be displayed by the generator from time to time.
Power-on Self Test Messages
The integrity of the data stored in non-volatile
memory is checked every time the 801GX is turned
on. The following tests are performed:
1. The system configuration memory is checked. The
memory remembers what the generator was doing
when it was last powered down. The memory
also stores all system wide parameters such as
calibration factors and the light meter size. It is
also checked to see if it is compatible with the
current version of operating firmware. If every-
thing is in order, then the generator goes on to
step 2.
Otherwise, a "System corrupt!" message is dis-
played for 2 seconds. This message is immedi-
ately followed by a "Memory blank" message,
which is displayed for 2 seconds while the for-
mat memory is re-initialized. Memory initializa-
tion involves clearing the entire non-volatile
memory and loading it with factory default data.
Any and all data created or edited by the user
will be wiped out. The calibration factors are
restored to the original values used at the fac-
tory to test and calibrate the unit. The generator
then continues with step 3.
❖ System corruption is very rare. It may be an
indication of a bad memory backup battery
or a damaged generator.
❖ If you update the firmware EPROM in your
unit, your system will appear to be corrupt
at the next power-on.
2. The remainder of non-volatile memory is checked
to see if any data has been corrupted since the