Symbol PDT 3400 Series, Product Reference Manual

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11-2
PDT 3400 Product Reference Guide
Cannot see characters on
display PDT 3400 not powered on. Press the PWR key.
Contrast not adjusted properly. Press FUNC then X to darken
the display or FUNC then Y to
lighten the display.
Unit powered up with battery
pack latch not secured. Ensure battery latch is closed
and reboot the PDT 3400.
Scanner does not come on
when Scan Bar pressed Scanner not enabled Check the hex file image to
ensure all scanner software
components included in image.
Scanner does not decode a
bar code Bar code is unreadable Verify that the bar code is not
defective, i.e., smudged or
broken.
Scan window is dirty Clean scan window with lens
tissue such as would be used
with eyeglasses. Do NOT use
tissues with lotion!
Scan code not enabled Check with the programmer to
ensure the scan code is enabled
in the application.
No communication between
PDT 3400 and cradle IrDA driver not loaded Ensure the IrDA driver is loaded.
PDT 3400 not seated properly Ensure 3400 is seated firmly in
the cradle cup.
PDT 3400’s IrDA window is
dirty Clean the IrDA window on the
PDT 3400 and on the CRD/
VCD 34XX with a soft, damp
cloth.
Table 11-1. Common Problems (Continued)
Symptom Possible Cause Action