Crown PIP-3632, PIP-4622, PIP-4632 Owners manual

ScreenArray® PIPs
PIP-4622, PIP-3632, PIP-4632
OPERATION MANUAL
Obtaining Other Language Versions:
To obtain information in another language about the use of this product, please contact your local Crown Distributor. If you need assistance locating your local distributor, please contact Crown at 574-294-8200.
Note: The information provided in this manual was deemed accurate as of the publication date. However, updates to this information may have occurred. To obtain the latest version of this manual, please visit the Crown website at www.crownaudio.com.
Printed on
recycled paper.
135807-1
2/03
ScreenArray® PIP Modules
Page 2
Operation Manual
ScreenArray
®
PIP Modules
1 Welcome
Crown ScreenArray® PIP modules are custom two-channel crossover networks with equalization specifi­cally designed for use with JBL ScreenArray cinema speaker sys­tems installed in cinemas, studio production and post-production environments. The PIP-4622 is de­signed for use with model 4622 Screen Array system, the PIP-3632 is designed for use with model 3632 Screen Array system, and the PIP­4632 is designed for use with model 4632 Screen Array system.
The ScreenArray PIP modules in­stall into the back of Crown PIP2-
Operation Manual
compatible amplifiers*, saving rack space and simplifying system wiring.
The HD15 connector on Screen Array PIPs is designed for quick and easy interface with popular cinema monitor products such as the USL CM680.
* You must have a PIP2-compatible amplifier to use the ScreenArray PIP modules. To determine if your amplifier is PIP2-compatible, look
for the
logo on the back of the amplifier. The ScreenArray PIP modules are NOT compatible with older Crown PIP amplifiers.
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2 Installation
2.1 Prepare the Amplifier
1. Turn down the level controls (full counterclockwise) and turn off the
amplifier.
2. Disconnect the amplifier’s power cord.
3. Remove the existing amplifier back panel (two screws).
This may involve disconnecting the
PIP from a PIP2 input adapter. If a
PIP2 input adapter is already present, remove the ribbon cables from the adapter.
2.2 Install the PIP into the
Amplifier
1. Carefully ground yourself to the chassis of the amplifier before
installing the PIP module. It is a good idea to maintain ground contact between yourself and the amplifier while inserting the module into the amplifier.
2. Install the PIP module into the amplifier: Turn the PIP module over
so that you can clearly see the two ribbon-cable connectors located on the underside of the circuit board (see Figure 2.1). Connect the two input ribbon cables of the amplifier. The 20-pin cable (A) should be connected first, then the 18-pin cable (B) should be connected.
Both ribbon cables should run smoothly from the amplifier to the PIP card (see Figure 2.1).
PIP from the
ScreenArray® PIP Modules
Page 4
Figure 2.1 Installing the PIP
Module
Operation Manual
®
ScreenArray
PIP Modules
Important: Be careful when attaching the ribbon cable to the connector that the cable is properly seated before applying pressure to the connector.
Forcing the cable onto the connector could cause the keying tabs, which ensure proper pin alignment, to break. Connecting the ribbon cables with improper pin alignments may result in damage to the
PIP.
When both cables are firmly attached, turn the PIP module back to an upright position and insert into the
PIP opening in the back of the
amplifier. Take care while inserting
PIP to make sure you do not
the crimp, pinch or stretch the ribbon cables.
3. Tighten the two PIP mounting screws
PIP is secured to the
until the
amplifier back panel. Be sure to use
the supplied star-washers for good ground connection.
Operation Manual
Page 5
ScreenArray® PIP Modules
2.3 Choice of Input
Connector and Pad
The HD15 connector on Screen Array PIPs provides input signal and amplifier output monitoring with popular cinema monitor products such as the USL CM680.
Input and output sensitivity for the USL CM680 and similar products is 3Vrms. This relatively high sensitivity coupled with the gain found in ScreenArray PIPs limits headroom. For example, the PIP­3632 has approximately 11dB of gain at 20 kHz. If the input is 3Vrms at 20 kHz, there is only 2dB of headroom. In the vast majority of systems this reduced headroom will not be a problem.
However, if more headroom is needed, consider using the defeatable 6.6dB pad in the PIP ScreenArray crossovers. When activated, this pad will attenuate an incoming 3Vrms signal to 1.4Vrms- providing approximately
8.6dB for headroom. Jumper Z1 is in the 0dB attenuation position by default (Figure 2.2).
As seen in Figure 2.3, the HD15 connector and the removable terminal are in parallel. Care should be taken to not drive both inputs at once. However, it is acceptable to use the removable terminal connector to "jumper" the input signal to another amplifier if necessary.
When a PIP ScreenArray module is used in conjunction with an USL CM680 or similar product, a single standard VGA cable can be used to provide input audio and output voltage-confidence monitor to and from the amplifier.
A standard VGA cable is a male-to­male cable with High Density 15 pin connectors on each end. VGA cables are readily available at most electronics and computer stores, as they are utilized on almost every computer monitor currently in production. (VGA cables are not included with the PIPs.)
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Operation Manual
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