Chapter 8
Maintenance and Troubleshooting
8–2
Problem Probable Cause Possible Solution
Decoder is not turned ON. Turn decoder ON. Switch is on rear of unit.
POWER ON indicator
Improper connection to power supply. Reconnect power cable to source and decoder. If
cable is defective, replace it.
does not light.
Fuse is blown. Replace fuse.
No incoming power. Check that voltage is present at service outlet.
POWER ON indicator
is lit, but laser scanner
Scanner is improperly connected Check cable and connection.
or wand does not
operate
Scanner’s cable is damaged Replace wand or laser scanner.
Disable Decoding command sent from
host
Send Enable Decoding command from host.
Timeout for laser scanner is set to 0 Change timeout value to 120 using Esc – y 120 V.
No laser beam
Decoder is in single read mode and is
awaiting
Enable Next Read
command.
Send
Enable Next Read
command.
em
e
rom w
n
ow
of laser scanner.
RTS/CTS Handshaking configuration
is incompatible between Decoder and
host.
Check host computer’s protocol setup.
Scanner or Scanner’s cable is
defective.
Replace scanner cable, replace scanner.
Poor quality labels. Check that labels are good quality and within
specifications.
Unable to read a label
Decoder is not set up correctly. Make sure you programmed the decoder to match
your application.
Check:
• Check character verification
• Code type.
• Length of code.
• Minimum number of reads required for a valid read.
Loose cables or connections. Check cables and connections.
Improper wand technique. Make sure you are holding wand correctly
Communications parameters are
incompatible.
Verify decoder, host, and display terminal
communications parameters.
o commun
ca
on
with host computer or
Improperly fabricated cable. Refabricate or replace cable.
display terminal
Improperly connected cable.
Check that the communication cable is securely
connected.
Host port CTS is driven OFF. Disconnect CTS or Drive CTS ON
Troubleshooting the System
To Next Page
Loading...
