Aspect BIS VIEW Service Information Manual page 53

SECTION 7
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Problem Isolation Procedure: Use the following sequence to determine the most probable
cable:
1. With no sensor connected, run DSC Self Test (see Section 7.2.2 "BISx Checkout
Procedure):
• If test fails or will not start, or the BISx is not recognized, the Monitor cable is
likely suspect. This failure may also be related to a PCB problem in the BISx in
which case the BISx must be replaced.
• If test indicates PASS, continue to step 2.
2. Connect Sensor Simulator or Test Simulator. Run Sensor Check (see Section 7.2.3
"PIC Checkout Procedure)
• If failure is noted, swap PIC with known good PIC cable and run again.
• If failure repeats, the BISx or the BISx Bulkhead Connector is suspect. This
failure may also be related to a PCB problem in the BISx in which case the BISx
must be returned to Aspect for service.
DIAGNOSTICS AND TROUBLESHOOTING
7-3