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Datex-Ohmeda 7900 - Diagnostic Tests for Hardware Components

Datex-Ohmeda 7900
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4/Tests and Troubleshooting
4-4 1503-0151-000 5/26/0
4.3. Diagnostic Tests
Note:
For simplicity the following text uses the term control wheel for the knob
used to select and confirm settings This knob and the rotary encoder switch
attached are also referred to as "The Encoder".
Test CPU
The software tests the CPU integer instructions as well as the CPU register(s). If
this test fails, the CPU did not perform an integer instruction correctly, or the CPU
register(s) have failed.
Upon FAIL, replace the microcontroller board - See section 6.

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