Express 125/250 User Manual, v.3.1 1
Chapter 1
Introduction
This manual covers the installation and operation of lighting systems
containing ETC’s Express 125 and 250 control consoles operating with
version 3.1 system software. The differences between these consoles is
shown under Appendix G Specifications, page 343. Throughout the
manual, both consoles are referred to as Express unless a distinction is
necessary.
Chapter one includes information to orient you to the console and the
manual. It includes the following sections:
• Using this manual
• Using Help
• Text conventions
• Navigation and visual feedback
• Output level conventions
• Moving light concepts and terms
• The Only command
• Using the trackpad
• Electronic backup maintenance
• Troubleshooting
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