Rane CP 64 (1999-2004 version) User Manual download pdf (Page 9)

Manual-9

LEVEL control. Note the following:

• Zone Level, EQ and Limiter circuits do not affect Page

signals summed Post-VCA.

• Zone Level, EQ and Limiter circuits do affect Page signals

summed Pre-VCA.

• Page signals are not available on the Expand Zone output

when summed Post-VCA.

• Page signals are always available for the Expand Page

output.

There are two internal controls related to the Program

Priority detector:

• Priority Release Time 2 sec to 20 sec (trim pot)

Default: 12 seconds

• Priority Threshold -∞ to -35 dBu (trim pot)

Default: -50 dBu

The default settings for the Program Priority detector are

chosen for most applications. Detector Threshold settings

lower than the default setting of -50 dBu are prone to false

triggering unless the source is very quiet. If a source is noisy,

you may wish to set the threshold higher to prevent false

triggering. The default Release Time is 12 seconds. You may

wish to decrease the Release Time if the source is a TV, radio,

tape machine or any other relatively constant signal source. If

you have a source like a jukebox, with relatively long search

times, you may wish to extend the Release Time.

There is one internal control related to Zone 1:

• Zone 1 Mode Mono/Stereo Default: Stereo

CP 64 CONNECTIONS

Power to the CP 64 should be OFF until all connections

are made.

EUROBLOCK CONNECTIONS

All Input and Output connections are made with Euro-

block connectors except for the RCA PROGRAM INPUTS.

When wiring to Euroblocks, a minimum wire gauge of 22 is

preferred for reliability. If the ground or shield wire is left

shorter, it acts as a strain relief for the other wires. Cable with

a flexible jacket is easier to use and less likely to damage the

connections. Avoid stripping excess insulation. Inspect wires

for nicks that may lead to wire breakage. Fully insert each

wire in the appropriate socket and tighten the screw.

Page Input circuits are true instrumentation amplifier

inputs and operate balanced or unbalanced. Expand and Zone

Outputs are driven by high quality cross-coupled line drivers

and operate balanced or unbalanced. For both Inputs and

Outputs, wiring is basically the same. Balanced operation is

recommended. Balanced wiring is straight 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 64

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 the CP 64.

At the other end of the cable connect the (+) wire to the signal

“hot” and the shield/gnd wire to ground. When unbalanced

wiring is used, it is very important for the CP 64 and any

other unit in the system to have good earth or technical

grounds. If a unit is located far from the CP 64 or is of a type

that might create grounding problems, isolation transformers

should be used.

When operating cross-coupled line drivers unbalanced

(i.e., any CP 64 Output), it is essential to ground the (–) pin.

PROGRAM INPUTS

The four stereo Program Inputs connect to RCA jacks.

These Inputs are unbalanced. The same guidelines given

above for unbalanced operation apply to these Inputs.

Refer to Rane Note 110, “Sound System Interconnection“

for additional wiring information.

REMOTE INSTALLATION

The CP 64 supports wired remotes for Page Assign, Zone

Level and Zone Source selection. Wire lengths of up to 1000

feet are possible. A brief list of suitable wire types is provided

in the WIRE TYPES section on the next page.

The PR 2 remote provides Page Zone Assign for Page 1

and Page 2 signals and is usually located at the Page source.

If your application requires one of the two PAGE ASSIGN

switches to control both Page 1 and Page 2 Assign, simply

wire all Page 1 and Page 2 control bits in parallel. You may

wish to leave the knob off the unused control and cover it

with one of the hole plugs provided in the kit. If your installa-

tion requires Page 1 and Page 2 remote control at two

different locations, only three wires are required for each PR

2 remote (Z1, Z2 & GND). As above, you may wish to leave

the knob off the unused control and cover it with a hole plug.

The ZR 1 remote provides Zone Level and Source

Selection, allowing local control from inside the Zone. Two

ZR 1 remotes may be used (only use one in each Zone). If

only one of the two controls is used, you may wish to cover

the unused control with one of the hole plugs provided in the

kit. If you require one ZR 1 remote to control both Zones,

simply wire the ports in parallel. This may be done with

Program Select only, Level only or both. If only one of the

two controls is wired in parallel, the other is still available for

a second remote.

When paralleling one remote across multiple CP 64s, all

three control pins must be wired, including the shields.

Power to the CP 64 should be off until all connections are

made. It is important to ensure that the CP 64 Remote Ports

are not subjected to sustained voltages outside the range of 0

to 5 volts DC or high levels of static. Inputs are protected,

however, caution is the better part of… you know. It is a good

idea to install the wiring, connect it to the remote assemblies

and then make the final connections at the CP 64. Do not

short Vr1 or Vr2 pins to ground. These pins are current

limited, however, excess heat is generated in the 5 volt supply

if a short occurs. Never subject the Vr1 or Vr2 pins to

voltages above 5 volts.

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Rane CP 64 (1999-2004 version) User Manual Page 9

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