Problem Isolation
7-3
If your board is not operating properly after using the information in
Table 7-1, continue with the next two subsections to further isolate
the problem.
Testing the Board and Host Computer
To isolate the problem to the DAS-TC/B 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 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-TC/B board.
3. Remove the DAS-TC/B board from the computer and visually check
for damage. If a board is obviously damaged, refer to “Technical
Support” on page 7-5 for information on returning the board.
Data appears to be invalid
The most common cause of this
problem is that the I/O bus speed
is in excess of 12MHz.
Reduce I/O bus speed to a
maximum of 12MHz (to change
the I/O bus speed, run BIOS
setup). See the documentation for
your computer for instructions on
running BIOS setup.
An open connection exists.
Check wiring to screw terminal.
Another system resource is using
the specified base address.
Reconfigure the base address of
the DAS-TC/B board. Check the
I/O address assignments of other
system resources and reconfigure,
if necessary.
Table 7-1. Troubleshooting Information (cont.)
Symptom
Possible Cause
Possible Solution
