Spacelabs Healthcare Lifecard 12, Руководство по обслуживанию

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21
Lifecard CF Service Manual
3. LCF BUILT-IN TESTS
3.1 Primary Built-in Tests
When a battery is inserted the internal functions of the microcontroller
are tested automatically. If any errors are found the recorder will start
to beep loudly, before the patient cable is
Þ tted. The pattern of beeps
indicates the cause of the problem.
3.2 Second Level Built-in Tests
When the patient cable is Þ tted the microcontroller applies further
automatic tests before proceeding with normal operation. The integrity
of the complete operating programme is tested at this point.
If any errors are found the recorder will start to beep after the cable
has been
Þ tted. The pattern of beeps again indicates the cause of the
problem.
3.3 Third Level Built-in Tests
Lastly, the microcontroller tests the remaining peripheral circuits, com-
municating any errors with a text message on the LCD. The following
service screen codes are used:
0001 Oscillator/clock fault
0002 SRAM fault
0003 EEPROM data error (data includes the unit serial
number, etc.)
0004 ADC operation fault
0005 ADC calibration fault
0006 Con
Þ guration fault
0007 LCD Voltage fault
0008 Varios Active Yoke EEPROM data error
012 (TIMI recorders only) Clock, EEPROM, SRAM or LCD
Voltage fault.