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Problem Isolation
7-5
If your board is not operating properly after using the information in
Table 7-1, continue with the next two sections to further isolate the
problem.
Testing the Board and Host Computer
To isolate the problem to the DAS-1800HC Series board or to the host
computer, use the following steps:
Caution:
Removing a board with the power ON can cause damage to
your board and/or computer.
1. Turn the power to the host computer OFF, and remove power
connections to the computer.
2. While keeping connections to accessory board intact, unplug the
accessory connector or cable from the DAS-1800HC Series board.
3. Remove the DAS-1800HC Series board from the computer and
visually check for damage. If a board is obviously damaged, refer to
“Technical Support” on page 7-6 for information on returning the
board.
4. With the DAS-1800HC Series board out of the computer, check the
computer for proper operation. Power up the computer and perform
any necessary diagnostics.
At this point, if you have another DAS-1800HC Series board that you
know is functional, you can test the slot and I/O connections using the
instructions in the next section. If you do not have another board, refer to
the instructions on page 7-1 before calling Keithley Technical Support.
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