Appendix D - Troubleshooting; Table A-3 Troubleshooting Table - Microscan MS-3000 User Manual

Appendices
Appendix D — Troubleshooting
The MS-3000 decoder, when used correctly with a properly adjusted scan
head, should produce good reads (see scan head user's manual). If not,
A-3 lists some of the more common problems associated with setting up
and using the decoder. If you are unable to locate or correct the problem,
call your Microscan representative.
Problem Possible Cause
Power indica-
tor does not
Power supply problem
illuminate when
decoder is ON
Host cable defective or not
wired properly
Menu does not
display when Wrong configuration com-
configuration mand (or lower case d)
command is sent
sent
Decoder configuration set-
tings do not match host's
Host cable defective
Wrong label type
(different label type being
Decoder does
scanned than that enabled
not transmit or
in firmware)
decode labels
(decoder indi-
Poor label quality
cator lights on
but no data is Decoder not configured
displayed on properly
screen)
Excessive ambient light,
sunlight, or strobes
Faulty scan head
Faulty cable to scan head
A-6
MS-3000 Single Head Decoder User's Manual

Table A-3 Troubleshooting Table

Solution
Have technician measure AC input voltage
and power supply DC output voltages.
Replace if power supply is not supplying cor-
rect voltages.
Check cable connections and wiring
"Attach Cabling," on page 1-3
(see
Verify that the <D> serial command (with an
upper case D) is being sent.
Reset decoder to default and/or match host
settings with decoder's.
Ensure the cable is correctly wired (see
1-5 on page 1-8
).
Check label configuration settings to be cer-
tain that they match the label type being
scanned. If label type is in doubt, enter <P>
(the Autodiscriminate All Codes command).
Ensure that Fixed Code Length and Check-
sums, if enabled, are set correctly.
Scan a label that is known to be good.
Reset decoder to default and/or match host
settings with decoder's.
Shield the bar code and/or scan head to verify
that excessive light is not the problem.
Try another scan head that is known to be
good.
Try another scan head cable.
).
table