Rane CP 64 (2004-2006 version) - Manual (Page 7)

Manual-5
by the ZONE 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 trigger-
ing 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 Euroblock
connectors except for the RCA Program Inputs. When wiring to
Euroblocks, a minimum wire gauge of 22 is preferred for reliabil-
ity. 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. Bal-
anced wiring is straight forward, (+) to (+), (–) to (–) and shield
to shield.
For unbalanced operation, we recommend using two conduc-
tor 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 the RaneNote, “Sound System Interconnection“
(included) 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 installation 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, ex-
cess heat is generated in the 5 volt supply if a short occurs. Never
subject the Vr1 or Vr2 pins to voltages above 5 volts.