Troubleshooting - Intermec EasyCoder 3400d User Manual

Twinax Interface

Troubleshooting

This section describes functional problems that you may encounter with the
twinax interface and possible solutions.
Problem: The amber fault light comes on and goes out after one second.
This indicates that the twinax interface has recorded an error message in its
error log. To see if the twinax interface is recording error messages in its error
log, watch the rear panel fault light as the host transmits a message to the twinax
interface. To print the contents of the error log, follow the directions starting on
page 31. The error log may tell you where to look for the problem: it may be
located between the host and the twinax interface, between the twinax interface
and the printer, or inside the twinax interface.
Problem: The amber fault light continually flashes.
This indicates that the twinax interface PCB assembly has failed its power-on
test. When the printer is first switched on, the twinax interface runs a set of tests
to verify that the RAM and ROM on the twinax interface PCB assembly are
functioning correctly and that the twinax interface can communicate with the
printer. The fault light flashes and the twinax interface ceases to function if a
failure is detected.
The fault light emits flashes to indicate where the problem is located:
No. of flashes
1
2
3
4
5
6
7
Note: The fault light will flash anywhere from one to seven times, pause, and then
repeat the process until whatever caused the error is corrected.
Switch the printer power off and then on. If the fault light still flashes, call for
service.
26
Problem
ROM checksum error
RAM error
Biphase Communications Processor (BCP) shared RAM error
BCP instruction RAM error
BCP internal loopback test timeout
BCP internal loopback test error
Printer interface error