Dolby Laboratories CP500-300 Installation Manual download pdf (Page 63)

Action

Indication

Step

No.

5-44

B-Chain Alignment Procedures

g. Adjustment of Bypass Gain

NORMAL BYPASS

select

local/remote

mute

local active

xx dBC

Dolby Stereo

A-type

olb

gnd

Proj. 2

GAIN

Rt tp

Lt tp

Proj. 1

GAIN

signal

present

Cat. No.

240A

B-Chain Alignment Procedures

Notes

5-45

g. Adjustment of Bypass Gain

Check that the local FADER is selected — the local active LED on the CP65 is lit. If

necessary, select the local FADER by pressing the select local/remote switch.

Set the FADER to the 7 setting.

Thread and play the Cat. No. 69 Pink Noise film loop on the projector.

This section of the alignment procedure covers the adjustment of the gain that is in effect

when the CP65 is switched from NORMAL to BYPASS.

Verify that the NORMAL/BYPASS switch is in the NORMAL position.

Press the format 04 Dolby Stereo A-type switch. Measure and note the SPL (sound

pressure level) in the theatre.

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Dolby Laboratories CP500-300 Installation Manual Page 63