To Troubleshoot Serial Port Failures - Agilent Technologies 89410A Service Manual

To troubleshoot serial port failures

Use this test to check the serial 1 and serial 2 ports on the A42 Memory
assembly.
1
2
Check the serial port controller.
a Press the following keys:
]
[System Utility
[ more ]
[ diagnostics ]
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service functions
1125
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enter
[ ]
functional tests
[ I/O ]
[ serial port controller ]
b
If the serial port test fails, the A42 Memory assembly is probably
faulty.
Check the serial 1 and serial 2 ports.
a
Connect SERIAL 1 pin 2 to pin 3.
b Connect SERIAL 2 pin 2 to pin 3.
c
Press the following keys:
]
[Return
[ Return ]
[ ]
special test modes
[ ]
I/O
[ ]
serial port loop back
d
If the self test fails, the A42 Memory assembly is probably faulty.
If the self test passes, the serial ports are probably operating
correctly.
Troubleshooting the Analyzer
To troubleshoot serial port failures
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