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11
Troubleshooting Guide
The following guide is for reference purposes only. Contact a customer service
representative to preserve the limited warranty terms.
Symptoms
Possible Causes
Solution
All Interfaces
The unit has no
LEDs, beep or motor
spin.
No power is being
supplied to the
unit.
Check the transformer, the outlet
and power strip. Make sure the
cable is plugged into the unit.
The unit has no
LEDs and/or
beeper.
No power is being
supplied to the unit
from host.
Some host systems cannot supply
enough current to power the
scanner. A power supply may be
needed.
At power up the unit
beeps three times.
There is a non-
volatile RAM
failure.
Contact a customer service
representative.
At power up there
is a continuous
razz tone.
There has been a
diagnostic failure.
At power up there
is a razz tone and
the green LED
flashes.
There is a VLD
failure.
At power up the
unit razzes twice
and both LEDs
flash.
There is a
scanning
mechanism
failure.
There are multiple
scans upon
presentation of
code.
The same symbol
timeout is set too
short.
Adjust the same symbol timeout
for a longer time increment.
The unit scans a
bar code, but locks
up after the first
scan (the red LED
stays on.)
The scanner is
configured to
support some
form of host
handshaking but
is not receiving
the signal.
If the scanner is setup to support
ACK/NAK, RTS/CTS, XON/XOFF,
or D/E, verify the host cable and
host are supporting the
handshaking properly.
The unit powers up,
but does not beep.
The beeper may
be disabled or no
tone has been
selected.
Enable beeper and select a tone.
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