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TROUBLESHOOTING GUIDE
The following guide is for reference purposes only. Contact a Metrologic
representative at 1-800-ID-METRO or 1-800-436-3876 to preserve the limited
warranty terms.

MS7220 Series Troubleshooting Guide

SYMPTOMS POSSIBLE CAUSE(S) SOLUTION
All Interfaces
No LEDs,
No beep or
No motor spin
No power is being
supplied to the
scanner.
Check the transformer,
outlet and power strip.
Make sure the cable is
plugged into the scanner.
No LEDs,
No beep
No power is being
supplied to the
scanner from host.
Some host systems cannot
supply enough current to
power an ArgusScan. Use
the power supply included
with the scanner.
The unit beeps 3
times on power
up.
There has been a
Non-volatile RAM
failure.
Contact a Metrologic
service representative, if the
unit will not hold the
programmed configuration.
The unit razzes
continuously on
power up.
There is a RAM or
ROM failure.
Contact a Metrologic
service representative if the
unit will not function.
At power up, there
is a Razz tone and
the green LED
flashes.
There has been a
VLD failure.
Contact a Metrologic
service representative.
At power up,
there is a Razz
tone and both
LEDs flash.
There has been a
scanner motor
failure.
Contact a Metrologic
service representative.
There are multiple
scans upon
presentation of a
bar code.
The same symbol
timeout is set too
short.
Adjust the same symbol
timeout for a longer time.
The unit powers
up, but does not
beep.
The beeper is
disabled.
No volume is selected.
No tone is selected.
Enable the beeper.
Select a volume
(programmable).
Select a tone.