GE Medical Systems
EAGLE 1000
Page 87
Information Technologies
Servicing Instructions
227 468 01 Rev. G
4.2 Instrument performance
4.2.1 Start-up performance
After switching on, the software performs a start-up self-test. There is an internal and an
external test. Only in the event of a malfunction, in the case of the internal test, whenever
still possible, a corresponding error screen appears and an audible technical malfunction
alarm signal is activated
.
Internal test:
- CPU test, internal watch dog test, LCD RAM test, RAM test, ROM CRC test and
EPROM test
External test:
- output beep (audible alarm signal test)
- output chessboard pattern on the screen
- output software version on the screen
- external watch dog test with time base test
- afterwards the power up screen appears on the display
4.2.2 Operating performance
During normal operation important system data are checked every 5 seconds. In the event
of an error this activates a warm start and the audible technical malfunction alarm signal is
activated.
4.2.3 Performance in the event of a malfunction
during start-up
After switching on, the software performs a start-up self-test. In the event of an error,
whenever still possible, one of the following messages appears on the error screen and
the audible technical malfunction alarm signal is activated:
Error in RAM, Error in ROM Error in permanent memory (EEPROM) Error in time
base Exception error during start-up Permanent start-up
/
shutdown error and QSPI
error.
There is now no alternative but to switch the instrument off.
In the case of a cyclic startup failure refer to 4.6 Troubleshooting tips.
during normal operation
During normal operation the working memory and backing storage are checked every 5
seconds by means of the checksum. If a malfunction is detected, this triggers a warm
start.
In the event of exceptions (deviations from normal processor operation, e.g., bus error,
address error, illegal command, division by zero, etc.) this also triggers a warm start.
Summary of Contents for Eagle 1000
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