Table 8-1. Troubleshooting Information - Keithley DAC-02 User Manual

Table 8-1. Troubleshooting Information

Symptom Possible Cause
Board does not Base address is incorrect or not
respond consistent with what the program
is addressing.
The board is incorrectly aligned
in the accessory slot.
The board is damaged.
Intermittent The most common cause of this
operation problem is that the I/O bus speed
is in excess of 8 MHz.
Vibrations or loose connections
exist.
The board is overheating.
Electrical noise exists.
8-2
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Possible Solution
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. Refer to
page 3-3 for instructions on setting the
base address.
Check the board for proper seating.
Contact the Keithley MetraByte
Hardware Applications Engineering
Department; see page 8-5.
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.
Cushion source of vibration and tighten
connections.
Check environmental and ambient
temperature. See the documentation for
your computer.
Provide better shielding or reroute
unshielded wiring.
Troubleshooting