Problem Isolation
7-3
Table 7-1. Troubleshooting Information
Symptom
Possible Cause
Possible Solution
Board does not
respond
Base address is incorrect or not
consistent with what the program
is addressing.
Check the base-address-switch setting
on the board against the setting shown in
the configuration utility. If the base
address is set correctly, make sure no
other computer device is using any of
the I/O locations beginning at the
specified base address. If necessary,
reconfigure the base address.
The interrupt level is incorrect or
not consistent with what the
program is addressing.
Make sure no other computer device is
using the interrupt level specified in your
program. If necessary, reset the interrupt
level.
The board configuration is
incorrect.
Check the remaining settings in the
configuration file.
The board is incorrectly aligned
in the accessory slot.
Check the board for proper seating.
The board is damaged.
Contact Keithley for technical support.
See page 7-6.
Intermittent
operation
The I/O bus speed is in excess of
8 MHz.
Reduce I/O bus speed to a maximum of
8 MHz (to change the I/O bus speed, run
BIOS setup). See your computer
documentation for instructions on
running BIOS setup.
Vibrations or loose connections
exist.
Cushion source of vibration and tighten
connections to external hardware.
The board is overheating.
Check environmental and ambient
temperature. See the documentation for
your computer.
Electrical noise exists.
Provide better shielding or reroute
unshielded wiring.
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