SECTION 6 PREVENTIVE MAINTENANCE
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6-3
• If monitor runs on battery when it is plugged in to AC power, the power supply may
need replacement.
• If failure continues after above actions, the monitor will need to be serviced, see
section 8.12, “What To Do With a Component That Requires Service.”
7. End of monitor checkout.
6.2.2 BISx Checkout Procedure
Periodically the BISx and associated cables and connectors should be inspected for physical
damage and verification that the BISx will pass the DSC Self Test. Begin this procedure with
the system components disconnected. The successful completion of this test verifies that the
BISx circuits are functioning properly and that it is recognized by and communicates with
the monitor.
IF ANY FAILURES ARE NOTED, SEE SECTION 7.3, “BIS
VISTA System Messages And Corrective Actions”.
1. Using a known good BIS VISTA monitor (see Section6.2.1 “Monitor Checkout
Procedure” ), start up the monitor with the BISx disconnected.
• Verify that the screen message “Connect BISx” displays.
2. Connect the BISx that you are testing.
• Verify that the screen message “Connect sensor or cable” displays.
3. Press the [MENU] touch key to access menu options.
4. Press [Next] twice until the “Diagnostics” option is displayed.
5. Press [Diagnostics].
6. Press [DSC Self Test] to initiate the test.
• Verify that the display shows “DSC Self Test Results: PASS.” This takes
approximately 20 seconds. Note that test results are posted in 4 tests for 2
channels. If a test fails, the failed test displays either “***” or the word, “FAIL.”
7. Press [Return to Previous Menu] and repeat the DSC Self Test while flexing
cables to see if intermittent opens or shorts exist.
IF ANY FAILURES ARE NOTED:
• Swap BISx with known good one to verify that problem does not exist with the
monitor.
• If failure is isolated to this BISx, it will need to be serviced. See section 8.12 “What
To Do With a Component That Requires Service.”
8. Press [HOME] to exit. If PIC and Sensor are available, perform PIC Checkout
Procedure. See section 6.2.3 “Patient Interface Cable (PIC) Checkout Procedure.”
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