Operating instructions

1-4
• Fade out the intermission music with the local front panel fader.
• Move to the remote location and see that the fader there is at 7.
• Select the film format.
• Start the projector.
• After the film leader has passed through the gate, select the
remote fader and trim the level slowly if necessary.
Following the above procedure should prevent the audience from hearing
annoying thumps and leader crackle at the beginning of the show.
B. OPERATION WITH AUTOMATION SYSTEMS
If the CP45 in your theatre is connected to automation equipment, the
format buttons and their associated LEDs may be duplicated elsewhere.
In most cases, the front panel controls of the CP45 can usually be used
to override commands from the automation system; however, as
automation equipment differs from installation to installation, check
with the installer of your system if you have any questions about its
operation and whether you can easily override automation commands.
C. BYPASS OPERATION
The CP45 has an independent power supply for emergency operation.
If the main power supply or processor circuitry fails, the unit will
automatically switch to bypass operation, allowing the show to continue
with limited sound processing functions. Bypass operation is signalled
by the flashing of the bypass LED on the front panel.
In the case of other problems, such as distortion or the loss of a channel,
the bypass mode can be selected manually by means of a switch located
on the front panel. However, there are other components in the theatre
sound system that could also fail. Be sure to refer to Section3,
Troubleshooting, any time there is a problem.
The following occurs when the CP45 is switched into the bypass mode:
• The front-panel remains operational but remote faders will not
work.
• Although you can select formats to help with faultfinding, the
commands from the front panel are ignored by the unit. The
optical preamp output of the selected projector and (if so
programmed at installation) the Non-sync and/or Aux inputs all
remain operational simultaneously. If you are not playing film,