User manual
5–2 Service/Technical Assistance
5.2.2 Diagnostic Procedure
The SCANTEAM 3700 Machine Mount CCD may be reset to the last saved
configuration parameters by issuing a Reset Command. (A list of these parameters may
be found on in section 4.6 and C.4.)
• To perform a Reset Command, send an <A> serial command to the 3700. This
action causes all data in memory to be erased and the current user configuration
parameters to be loaded from non–volatile memory. In the absence of a user
configuration, the default configuration is loaded into memory. This action allows
the user to clear memory of any corrupt data from scanned data.
5.2.3 Troubleshooting Checklist
Problem
Possible Cause
3700 does not scan.
3700 is not reading bar
code.
Beeper does not come on.
Data is not transmitted.
Data message is missing
or garbled.
1) Loose I/O communications cable.
2) Trigger mode not configured correctly.
3) Not triggered.
1) Bar code symbol type is disabled.
2) Symbol length is out of range.
3) Symbol does not contain a valid
checksum character.
4) Bar code is bad, damaged or out of spec.
5) Window is scratched or dirty.
1) 3700 is not decoding.
2) Good read is disabled.
1) Loose I/O communications cable.
2) 3700 is waiting for clear to send (CTS).
3) 3700 is waiting for XON.
Baud rate, parity, stop bits or data bits is
wrong.
Solution
1) Connect cable.
2) Configure the 3700 for the proper trigger
mode and read timeout value.
3) Provide trigger consistent with the trigger
mode configuration.
1) Enable the symbology.
2) Configure the 3700 for correct length.
3) Configure the 3700 to not require checksum
or use a label with a valid checksum.
4) Replace bar code.
5) Clean window.
1) See “3700 is not reading bar code.”
2) Configure the 3700 for desired good read
operation.
1) Connect cable.
2a) Have the receiving equipment generate CTS.
2b)Disconnect CTS signal allowing the 3700 to
force CTS to the active state.
3a) Send an XON to the 3700.
3b)Configure the 3700 to disable XON.
Configure the 3700 for the proper
communications parameters.
Table 5.1 SCANTEAM 3700 Troubleshooting Checklist