30
TROUBLESHOOTING GUIDE
Symptoms Possible Causes Solution
The scanner
emits 3 beeps
on power up.
A non-volatile RAM
failure may have
occurred.
Contact a Metrologic customer
service representative, if the unit
will not hold the configuration.
The scanner
emits a
continuous razz
tone on power –
up.
A RAM or ROM
failure may have
occurred.
Contact a Metrologic customer
service representative.
The scanner
emits a razz tone
and the blue LED
flashes on power
up.
There has been a
VLD failure.
Contact a Metrologic customer
service representative.
The scanner
emits a razz tone
and both the blue
and white LEDs
flash at power-
up.
A scanning
mechanism failure
may have occurred.
Contact a Metrologic customer
service representative.
The scanner
scans,
communicates
and beeps twice.
The same symbol
timeout is set too
short.
Adjust the same symbol timeout
for a longer time.
The beeper disabled
and/or no tone is
selected
Enable beeper and/or select a
tone.
The bar code being
scanned is a
particular symbology
that is not enabled.
UPC/EAN, Code 39, interleaved 2
of 5, Code 93, Code 128 and
Codabar are enabled by default.
Verify that the type of bar code
being read has been selected.
The scanner
powers up, but
does not scan
and/or beep The bar code being
scanned does not
satisfy the scanner’s
configured criteria
(i.e. character length
lock, or a minimum
length)
Verify that the bar code that is
being scanned falls into the
criteria.
Typical of Non-UPC/EAN codes,
the scanner defaults to a minimum
of 3-character bar code.