SECTION 3
INSTALLATION AND JUMPERS
Do NOT connect the CP500 to mains power until all connections have been made
and all jumpers have been checked or set.
If air-conditioning noise is audible in the theater, arrange for lubrication of the
motor, fan bearings, adjustment of belts and drives, and cleaning of filters to reduce
the ambient noise to a minimum. If the air-conditioning cannot be repaired switch it
off while the CP500 is being aligned.
3.1 Replacing an Existing Sound System
If the CP500 replaces an existing cinema sound system, play a typical film before
you remove the old system so you will have a benchmark for comparison to the new
system. It can also serve as a check of the positioning of the exciter lamp, the
focusing of the soundtrack lens, and the condition of the solar cell.
3.1.1 Before playing the film:
• Verify that the existing power amplifiers are in good working order.
• Verify that the existing speakers are in good working order, and that
there is no loose or missing hardware, structural parts, or damaged
drivers in the enclosures.
• Verify that all wiring is present and properly connected and that
crossovers are operating and are correctly adjusted.
• Check the polarity of the speaker connections.
• Verify that there are adequate earth (ground) connections.
• Verify that radio interference problems are adequately resolved.
3.1.2 While playing the film:
While you run the film, listen carefully in various parts of the theater for audio
system problems:
• Hum.
• Noise, clicks, pops.
• Distorted sound.
• Poor tonal balance (lack of high-frequency or bass content).
These problems must be resolved before you can proceed with the new installation.
3.1.3 Disconnect the old system
• Disconnect power from the existing cinema sound equipment.
• Disconnect all cabling from the existing sound processor. Leave the
cables connected to the power amplifiers, booth monitor, etc.
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