2. W h i l e keeping connections to accessory board intact, unplug the
accessory connector or cable from the P10-12 board.
3. Remove the PIO-12 board from the computer and visually check for
damage. If a board is obviously damaged, refer to "Technical
Support" on page 5-5 for information on returning the board.
4. W i t h the P10-12 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 P10-12 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 "Technical Support" on page 5-5 before calling Keithley
Technical Support.
Testing the Accessory Slot and I/O Connections
When you are sure that the computer is operating properly, test the
computer accessory slot and I/O connections using another P10-12 board
that you know is functional. To test the computer accessory slot and the
I/O connections, follow these steps:
1. Remove computer power again, and install a PIO-12 board that you
know is functional. Do not make any I/O connections.
2. T u r n computer power ON and check operation with the functional
board in place. This test checks the computer accessory slot. If you
were using more than one P10-12 board when the problem occurred,
use the functional board to test the other slot, as well.
3. I f the accessory slots are functional, use the functional board to check
the I/O connections. Reconnect and check the operation of the I/O
connections, one at a time.
4. I f operation fails for an I/O connection, check the individual inputs
one at a time for shorts and opens.
5. I f operation remains normal to this point, the problem is in the P10-12
board(s) originally in the computer. If you were using more than one
5-4
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Summary of Contents for PIO-12
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