Keithley KPCI-PIO32IOA, Руководство пользователя

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KPCI-PIO32IOA and KPCI-PDISO8A User’s Manual Troubleshooting 5-3
Systematic problem isolation
General problem isolation procedure
If you were unable to isolate the problem using Table 5-1 , then follow Figure 5-1 and the accom-
panying written procedure. The flowchart in Figure 5-1 summarizes how to systematically check
and eliminate some problem causes. The corresponding written procedure amplifies the flow-
chart steps with more detail.
WARNING To avoid a possible shock hazard, always turn OFF your computer
and any external circuits connected to the KPCI-PIO32IOA or
KPCI-PDISO8A board before removing or replacing the board.
CAUTION Handle the board at the mounting bracket, using a grounded wrist
strap. Do not touch the circuit traces or connector contacts. If you do
not have a grounded wrist strap, periodically discharge static elec-
tricity by placing one hand firmly on a grounded metal portion of the
computer chassis.
NOTE In the following procedure, the term “board” always refers to a
KPCI-PIO32IOA or KPCI-PDISO8A board. The procedure never
directs you to install or remove any type of PCI board other than a
KPCI-PIO32IOA or KPCI-PDISO8A board.
In Figure 5-1 , the number in brackets in each flowchart block (e.g
. [21]
)
refers to the corresponding step number in the verbal procedure. If mul-
tiple blocks in the flowchart have the same number, each of those blocks
is part of a single verbal step. Conversely, if there is a range of numbers
in the brackets (e.g.
[4, 5, 6]
), the block summarizes multiple verbal steps.
The logic in this procedure assumes that the problem has only one
cause. Therefore, once a cause is found and corrected, the reader is
instructed to reassemble the system and verify proper operation.