P. I.P.–PA © 1999 by Crown International, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A. Telephone: 219-294-8000. Fax: 219-294-8329. P.I.P. modules are produced by the Professional Audio Division of Crown International, Inc. Trademark Notice: Crown ®, Macro-Tech ®, Com-Tech ®, IQ System®, IOC ® and P.I.P.® are registered trademarks of Crown International, Inc. Other trademarks are the property of their respective owners. Printed on recycled paper.
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P.I.P.–PA Fig. 1.1 P.I.P.-PA 1 Welcome Thank you for purchasing the Crown P.I.P.-PA accessory. P.I.P.® modules are designed to quickly install in the rear panel of many Crown amplifiers. P.I.P. stands for “Programmable Input Processor.” Their versatile features expand the capabilities of your amplifier and enable you to customize it for your particular needs. The P.I.
P.I.P.–PA ❏ Phantom power provided for mic inputs (can be disabled). ❏ Low-frequency filters for mic inputs (can be disabled). ❏ Variable-threshold error-driven or audio feedback signal-driven compressor. ❏ Balanced RFI suppression is provided at each input. ❏ Gold plated edge-connector for trouble-free connection to amp. ❏ Quick-connect barrier connectors provide greater wiring flexibility and make installation easier. 2 Facilities A. Low-Cut Filter Jumper C.
P.I.P.–PA F. Balanced Mic Input H. Remote Switch Input Low-impedance mic line connection is made with these connectors in similar fashion as the linelevel inputs (E). The remote control switches for both Channel 1 and Channel 2 are attached to this connector. (The ground leads are common.) With no switch attached, the line-level inputs (E) are normalled to the amplifier inputs. G. Mic Input Gain Control Use a small, flat-blade screwdriver to adjust the mic input sensitivity with these controls. Fig.
P.I.P.–PA 3 Installation Before installing this P.I.P. module, you’ll want to configure it. 1. Set the microphone phantom power jumper of each channel to the desired position. The on/off positions are labelled on the circuit board (see Figure 2.1). 2. Set the microphone low-cut filter jumpers of each channel to the desired position. The on/off positions are labelled on the circuit board (see Figure 2.1). 3. Adjust the compressor threshold of each channel.
P.I.P.–PA L BACK PANE ER OF AMPLIFI amplifier is off, there could still be enough energy remaining to cause electric shock. 1. Turn down the level controls (full counterclockwise), turn off the amplifier and unplug it from the AC power source. 2. Remove the existing P.I.P. module or panel (two screws). For PIP2 amplifiers, this may involve disconnecting the P.I.P. from a PIP2 input adapter (see Figures 3.3 and 3.4).
P.I.P.–PA provided. (The lock washers are important because they bind the P.I.P. to the chassis ground of the amplifier.) 5. Connect input and output wiring. 6. Plug in the amplifier and turn it on. Adjust its level controls to a desired setting. Do not tamper with the circuitry. Circuit changes made by unauthorized personnel, or unauthorized circuit modifications are not allowed. Remember: Crown is not liable for any damage resulting from overdriving other components in your sound system.
P.I.P.–PA MONO mode. Remember to follow the instructions in your amplifier's Reference Manual. Then connect the mono input wiring to the mic and/or line input of Channel 1 only. Do not use the input of Channel 2 while the amplifier is in BRIDGEDMONO or PARALLEL-MONO mode and keep the amplifier’s Channel 2 level control turned down. Input Cable Routing Because the gain of a Crown amplifier equipped with a P.I.P.
P.I.P.–PA “Hi” the line-level input is enabled. When it is “Lo” the mic input is enabled. Figure 3.5 shows how to connect a remote switch (or logic line) to each channel using the remote connector. Ground Isolation If present, ground loop problems can be reduced by unsoldering or cutting and removing the ground jumper shown in Figure 2.1. When removed, the signal ground is isolated from the chassis ground by a 2.7 ohm resistor as shown below: Fig. 3.6 Ground Isolation Fig. 3.
P.I.P.–PA 4 Specifications Note: All specifications referenced to a 0.775 V input signal. Signal to Noise: Line: Nominally –80 dB from 20 Hz to 20 kHz. Mic: Nominally –118 dB equivalent input noise, 20 Hz to 20 kHz (Rs=150Ω). Frequency Response: Line: ±0.5 dB from 20 Hz to 20 kHz. Mic: ±1 dB from 50 Hz to 15 kHz. Common Mode Rejection: Better than 70 dB at 60 Hz. Compressor: Driven by both the audio signal and by the IOC error signal.
P.I.P.–PA 5 Schematic Electronic image for this figure was not included due to quality considerations. Please refer to the printed documentation. Notes: 1. All resistors are in ohms, 1/4 W, 5% unless otherwise specified.
P.I.P.–PA Electronic image for this figure was not included due to quality considerations. Please refer to the printed documentation. 2. All capacitors are in microfarads unless otherwise specified.
P.I.P.–PA 6 Service This unit has very sophisticated circuitry which should only be serviced by a fully trained technician. 6.1 Worldwide Service Service may be obtained from an authorized service center. (Contact your local Crown/ Amcron representative or our office for a list of authorized service centers.) To obtain service, simply present the bill of sale as proof of purchase along with the defective unit to an authorized service center. They will handle the necessary paperwork and repair.
P.I.P.–PA and Crown will reimburse you. Send copies of the shipping receipts to Crown to receive reimbursement. Your repaired unit will be returned via UPS ground. Please contact us if other arrangements are required. Factory Service Shipping Instructions: 1. When sending a Crown product to the factory for service, be sure to fill out the service information form that follows and enclose it inside your unit’s shipping pack. Do not send the service information form separately. 2.
3 YEAR NORTH AMERICA P.I.P.–PA SUMMARY OF WARRANTY The Crown Audio Division of Crown International, Inc., 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown product, for a period of three (3) years from the date of purchase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship.
P.I.P.–PA WORLDWIDE SUMMARY OF WARRANTY The Crown Audio Division of Crown International, Inc., 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A.
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P.I.P.–PA Crown Factory Service Information Shipping Address: Crown Factory Service, Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, IN U.S.A.
For Technical Support contact: Crown Audio Division Technical Support Group Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A. Phone: 800-342-6939 (North America, Puerto Rico and Virgin Islands) or 219-294-8200 Fax: 219-294-8301 Fax Back (North America only): 800-294-4094 or 219-293-9200 Fax Back (International): 219-294-8100 Internet: http://www.crownaudio.
