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21
Troubleshooting Guide
The following guide is for reference purposes only. Contact a customer service
representative to preserve the limited warranty terms, see page 45.
All Interfaces
Symptoms Possible Causes Solution
No LEDs, beep
or illumination.
No power is being
supplied to the scanner.
Check transformer, outlet and
power strip. Make sure the
cable is plugged into the
scanner.
No power is being
supplied to the scanner
from the host.
Some host systems cannot
supply enough current to
power the MS4980. A power
supply may be required.
Long Razz tone
on power up.
There has been a
scanner configuration
failure.
Contact a customer service
representative if the unit will
not hold the saved
configuration.
There has been a
diagnostic failure.
Contact a customer service
representative if the unit will
not function.
Long Razz tone
when exiting
configuration
mode.
There was a failure
saving the new
configuration.
Re-try to configure the scanner.
Contact a customer service
representative if the unit will not
hold the saved configuration.
Long Razz tone.
There was a scanning
mechanism failure.
Contact a customer service
representative.
Short Razz tone
in configuration
mode.
An invalid bar code has
been scanned.
Scan a valid bar code or quit
configuration mode.