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This chapter lists problems that may occur when you operate the JANUS 2050 and
provides possible solutions to those problems. It also provides different options for
resetting the JANUS 2050, and describes how to save data and update flash memory.
Troubleshooting the JANUS 2050
If you have problems operating the JANUS 2050, review the following tables
listing problems and their possible solutions. Problems are grouped into
common areas for easier reference. For example, problems you might see while
running an IRL program are grouped in one table.
Powering Up or Booting the JANUS 2050
This table lists problems that may occur when turning the JANUS 2050 on or
off, or when booting the JANUS 2050.
Problem
Solution
When you turn on or cold boot the
reader, the Boot Loader menu appears.
The menu may not list all the Boot
Loader commands, and the screen may
include a status message. For example,
the partial Boot Loader menu may look
like this:
Boot Loader
Dump
Load
Storage
Off
Bad BIOS Checksum
Please Load BIOS
20X0A.003
The bootstrap checks the system flash when doing a resume or
cold boot. If the system flash is corrupt or there are bad
checksum error messages, it brings up the Boot Loader menu.
Read the status messages at the bottom of the menu.
If you see “Bad BIOS Checksum” or a message that indicates the
system flash is corrupt, you could save the contents of
conventional memory using the Dump menu selection, but you
must reload the system flash.
If the system flash memory is corrupt, you can dump memory
and reload the system flash. For more information about
reloading flash memory, see “Saving Data and Loading Flash
Memory” later in this chapter.
Summary of Contents for Janus 2050
Page 1: ...P N 065716 001 User s Manual JANUS 2050 Vehicle MountComputer 4MB ...
Page 2: ...P N 065716 001 User s Manual JANUS 2050 Vehicle MountComputer 4MB ...
Page 21: ......
Page 22: ...Getting Started 1 ...
Page 23: ......
Page 40: ...Operating the JANUS 2050 2 ...
Page 41: ......
Page 64: ...Using the JANUS 2050 Software 3 ...
Page 65: ......
Page 96: ...Configuring the JANUS 2050 4 ...
Page 97: ......
Page 111: ...39 39 nugget nugget A A ...
Page 112: ...Using PC Cards 5 ...
Page 113: ......
Page 132: ...Communicating With the JANUS 2050 6 ...
Page 133: ......
Page 164: ...Working With IRL 7 ...
Page 165: ......
Page 183: ......
Page 184: ...code 39 nugget helcond Troubleshooting 8 ...
Page 185: ......
Page 210: ...Command Reference 9 ...
Page 211: ......
Page 219: ......
Page 220: ...Configuration Commands 10 ...
Page 221: ......
Page 316: ...Advanced Operations 11 ...
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Page 323: ...39 39 nugget nugget A A ...
Page 324: ...Configuration and Full ASCII Charts A ...
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Page 353: ...39 39 nugget nugget A A ...
Page 354: ...Specifications B ...
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Page 366: ...Software Utility Reference C ...
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Page 382: ...Glossary G ...
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Page 406: ...Index I ...
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