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Manual-6

RECOMMENDED CALIBRATION PROCEDURE

The CP 52 is a very versatile instrument. While this allows it to conform to the requirements of a large number of system

applications, it also results in complexity. For this reason, it is very important to use an organized approach to system calibra-
tion. Once the system is connected and the internal switches set for your specific application, it is important to take the time for
proper calibration. The following is an ordered list of system adjustments that makes calibration easy and results in optimum
performance.

This procedure assumes that a microphone is used for the Page. The procedure (except for the exact wording) is the same

for other Page sources.

Make sure the POWER is off!

PREFLIGHT CONTROL SETTINGS

PAGE SETTINGS:

• MIC/LINE Pad

As required

(front panel)

• Gain TRIM

12:00 (center)

(front panel)

• DETECT THRESHOLD

Min (ccw, Active)

(front panel)

• Paging LEVEL

Min

(front panel)

• LIMIT THRESHOLD

+20 dBu

(front panel)

• PHANTOM POWER

As required

(rear panel)

• HIGH/LOW CUT FILTER

As required

(rear panel)

• PAGE LEVEL TRACKS ZONE LEVEL OFF

(rear panel)

PROGRAM INPUT SETTINGS:

• Input Levels

Min

(front panel)

• PRIORITY DETECT THRESHOLD

Set to -50 dBu at factory (range -

 to -35 dBu; rear panel)

• PRIORITY RELEASE TIME

Set to 12 sec. at factory

(range 5 to 20 sec; rear panel)

• PRIORITY OFF/ON

OFF

(rear panel)

ZONE SETTINGS:

• DUCKER DEPTH

2:00 (about 15 dB)

(front panel)

• DUCKER OFF/ON

OFF

(front panel)

• PROGRAM SELECT

LINE 1, 2, 3 or P

(Any active Input; front panel)

• RMT (Remote)

Out (local control)

(front panel)

• Zone LEVEL

Max

(front panel)

• LIMIT THRESHOLD

+20 dBu

(front panel)

• Equalizer

Flat

(front panel)

• Zone Output MONO

As required

(rear panel)

• Zone Expand ZONE/PROGRAM/PAGE As required

(rear panel)

SYSTEM CONNECTIONS

• Connect page microphone or line level paging source
• Connect Program sources
• Connect Output to amps
• Connect ZR 1 Remote control (if required)

...You are now ready to calibrate the CP 52 (

continued on next page...

)

Summary of Contents for CP 52

Page 1: ...ering PAGE only PROGRAM only or ZONE both signal depending on the switch setting This Output uses a cross coupled line driver and may be used balanced or unbalanced Adjust the ZONE EXPAND LEVEL trim as desired ZONE OUTPUT The ZONE OUTPUT uses a cross coupled line driver and may be used balanced or unbalanced Set the front panel LIMIT THRESHOLD as required Depress the MONO switch for a mono Zone ZR...

Page 2: ...ogram attenuation during a Page from 50 dB ccw to 6 dB cw The Ducker release is ramped 햻 ZONE DUCKER OFF ON switch turns the Ducker ON or OFF 햽 ZONE PROGRAM SELECT switch assigns one of four Program Inputs to the Zone Output 햾 ZONE RMT switch when pushed in turns control of Zone Level and Zone Program Selection over to the Zone Remote Port Front panel ZONE LEVEL and ZONE PROGRAM SELECT controls ar...

Page 3: ...urce for the Expand Output 햹 ZONE EXPAND LEVEL trim adjusts the signal level delivered to the ZONE EXPAND OUTPUT 햺 PRIORITY RELEASE TIME control sets the delay time from last detected signal to release of automatic priority over ride The range of control is 5 seconds ccw to 20 seconds cw 햻 PRIORITY OFF ON switch allows disabling the automatic priority override function when in the OFF position 햽 P...

Page 4: ...ght forward to to and shield to shield For unbalanced operation we recommend using two conductor cable with shield The cable is wired to the CP 52 the same as for balanced operation At the other end of the cable connect the wire to signal hot and both the and shield wires to ground important If you use single conductor cable with shield connect the shield gnd wire to both the and shield pins at th...

Page 5: ...he CP 52 Connect each wire to the 5 pin connector by fully inserting it in the correct socket and tightening the screw Make sure wires are free of nicks and that the cable jacket is stripped back sufficiently to allow it to lie in the electrical box with the remote assembly inserted Use the flat head 6 screws supplied with the kit to mount the remote assembly and silk screened front panel to the e...

Page 6: ...RESHOLD Min ccw Active front panel Paging LEVEL Min front panel LIMIT THRESHOLD 20 dBu front panel PHANTOM POWER As required rear panel HIGH LOW CUT FILTER As required rear panel PAGE LEVEL TRACKS ZONE LEVEL OFF rear panel PROGRAM INPUT SETTINGS Input Levels Min front panel PRIORITY DETECT THRESHOLD Set to 50 dBu at factory range to 35 dBu rear panel PRIORITY RELEASE TIME Set to 12 sec at factory ...

Page 7: ...e on due to background sound 7 With an active Program source playing speak into the Paging mic Adjust the Paging LEVEL control to provide the correct Page to Program mix If the Paging Detect Threshold is set too high there may be a delay before speech is heard To correct this lower the Paging Detect Threshold setting 8 Set the Paging LIMIT THRESHOLD to limit the maximum Page level to the loudest d...

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