Service manual

The Error and Event Logging
4-3
3The Error and Event Logging
The last error that was displayed can be printed by starting the Extended Self-test. The
error code is useful in diagnosing what was last wrong with the cardiograph. See “How to
Read the Extended Self-Test Report” in Chapter 2 for the location of the last error on the
Extended Self-test report.
The last 46 events recorded in the Events Log are also printed on the Extended Self-Test
Report for cardiographs equipped with Option #A05.
3Using Extended Self-test in Troubleshooting
The cardiograph’s Extended Self-test is a simple-to-use, looping test that gives you
pass/fail status for each of these major subassemblies:
• CPU assembly
•Printer
• Keyboard display (M1772A excluded)
• Modem (Option #A05 only)
Instructions for entering and using Extended Self-test are found in Chapter 2.
3How the PageWriter 100 Communicates Error Codes and
Messages
The PageWriter 100 uses its LEDs to communicate error codes and messages.
PageWriter 100 Error Code Communication
When an error is detected, all LED’s light for 1/2 second, then the LED’s above the error
code digits light in turn for 1/2 seconds each, beginning with the leftmost digit. For
example, error code 3527 will cause the following LED’s to blink in the order given: 3
, 5 , 2 , 7 (all Manual lead group LED’s).
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