An IQ System ® Programmable Input Processor for Crown ® P.I.P.®-compatible Power Amplifiers © 1998 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone: 219-294-8000. The IQ–P.I.P.–SMT is produced by the Professional Audio Division of Crown International, Inc. Trademark Notice: MPX-6 ™, SMX-6 ™, SmartAmp™ and Macro Reference™ are trademarks and Amcron ®, Crown ®, IQ System ®, IOC ®, ODEP ®, Macro-Tech ®, Com-Tech ® and P.I.P.
3 YEAR NORTH AMERICAIQ P.I.P.–SMT 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.
IQ P.I.P.–SMT WORLDWIDE SUMMARY OF WARRANTY The Crown Audio Division of Crown International, Inc., 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A.
IQ P.I.P.–SMT Quick Install Procedure This procedure is provided for those who are already familiar with Crown’s IQ System and who would like to install the IQ–P.I.P.–SMT in the shortest time possible. Less experienced installers or those wishing a full explanation of the installation procedure are encouraged to go to Section 4 where the full installation procedure is described. Prepare the IQ–P.I.P.–SMT: 1. Set the IQ address switch SW1 (see Figures 4.1 and 4.2) on the IQ–P.I.P.
IQ P.I.P.–SMT The information furnished in this manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible situation which may arise during installation, operation or maintenance. If you need special assistance beyond the scope of this manual, please contact our Technical Support Group. Crown Audio Division Technical Support Group Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A.
IQ P.I.P.–SMT CONTENTS Quick Install Procedure ......................................................... 3 1 Welcome ................................................................................. 8 1.1 Unpacking ................................................................... 8 2 Facilities ................................................................................. 9 3 Features ............................................................................... 12 3.1 Amplifier Information .........
IQ P.I.P.–SMT Contents continued... 4.8.2 AUX Input ....................................................... 27 5 Technical Information .......................................................... 29 5.1 Audio Signals ............................................................. 29 5.2 Amplifier Monitoring: “Monitor Inputs” ........................ 29 5.3 Amplifier Control ........................................................ 29 5.4 IQ System Communications ....................................... 30 5.
IQ P.I.P.–SMT Fig. 1.1 IQ–P.I.P.–SMT 1 Welcome The IQ–P.I.P.–SMT is a PIP2 input module for Crown P.I.P.® (programmable input processor) and PIP2compatible amplifiers. Because it is also an IQ2-series component, it supports Crown’s UCODE protocol and requires an IQ System® with an IQ2compatible IQ interface. UCODE (universal code) enables users and third parties to develop custom software objects to control and monitor IQ2-compatible components like the IQ–P.I.P.–SMT. The IQ–P.I.P.
IQ P.I.P.–SMT Front View Bottom View Fig. 2.1 The IQ–P.I.P.–SMT Facilities 2 Facilities A. Mounting Screws The IQ–P.I.P.–SMT is secured to the back panel of the amplifier with two phillips-head screws and star-tooth lock washers. The lock washers are required for proper ground connection. B. Balanced Audio Inputs A 3-pin female XLR connector is provided for balanced audio input to each channel of the amplifier. Pin 1 is chassis (gnd); pin 2 is not inverted (+); and pin 3 is inverted (–).
IQ P.I.P.–SMT C. Reset Switch A multifunction reset switch is provided to restore the IQ–P.I.P.–SMT to a prior state. It can be depressed with a straightened paper clip through the small hole in the P.I.P. panel. Press the reset switch for less than 2 seconds and all settings, except the amplifier model scale factors, will be reset with “user default” parameters and the DSPI will flash once.
IQ P.I.P.–SMT circuit board for MA-600 - 3600VZ and SR I & II. Use the “OUT” position whenever the unit is installed into a PIP2-compatible. (CT "10" Series or MA 5000VZ) K. PIP2 SIP Sockets (RN1, RN2) These eight-pin SIP (single in-line package) sockets are provided for full PIP2 compatibility. IQ-P.I.P.-SMTPIP2 modules (required for PIP2compatible amplifiers) should come with the SIP networks already installed. The SIP networks are not required and should be absent on standard IQ-P.I.P.-SMT modules. L.
IQ P.I.P.–SMT 3 Features With an IQ–P.I.P.–SMT module a Crown amplifier can be monitored and controlled by an IQ System. And the module has SmartAmp™ features which enable the amplifier to function automatically. For example, an IQ– P.I.P.–SMT can automatically turn off the high voltage supplies of the amplifier when no input signal is present. This can lower electrical usage and provide long-term cost savings. And it can automatically limit the audio signal and detect and report various problems.
IQ P.I.P.–SMT 3.8 Input Signal Compressor/ Limiter An input signal compressor/limiter is available for each channel. Each one is controlled by the IQ System and has five parameters: Input Compressor: Turns this function on/off. Threshold: Sets the threshold, in dB, above which the compressor acts. The level is measured at the input to the P.I.P. and corresponds to the level shown on an input meter.
IQ P.I.P.–SMT Output Limiter: Turns this function on/off. Threshold:: Sets the threshold, in dB, above which the limiter acts. The level is based on the scaled output voltage monitors (see Section 3.9). The range is from 0 dB to –40 dB. Attack Time: Sets the attack time of the limiter. The attack time is defined as the time it takes the limiter to attenuate the input signal by 10 dB. The range is from 10 milliseconds to 30 seconds. Release Time: Sets the release time of the limiter.
IQ P.I.P.–SMT plifier from “ODEP limiting” the drive level of the output devices as described earlier. In the majority of cases, limiting the input signal produces a very smooth sound. And since the input signal is only limited when and to the degree necessary, it is very difficult to detect. There are four parameters which control this feature: ODEP Conservation: Turns this function on/off. Trigger Level: Sets the ODEP level, in percent, above which the conservation limiting will begin.
IQ P.I.P.–SMT whether the amplifier output is distorted simply because of an excessive input level. The range is from +16 dBu to –40 dBu. Report Via Aux: Enables or disables a feature which causes the AUX port output to stay on during normal operation and turn off whenever a fault condition exists (see Sections 3.21 and 4.8). 3.
IQ P.I.P.–SMT ceived. It can be forced to stay on by IQ software to assist with troubleshooting of an IQ System. 3.21 AUX Output A 3-pin male mini XLR connector is provided to control auxiliary equipment. When the AUX feature is turned on, +15 VDC is provided across pin 1 (gnd) and pin 3 (+). A nominal current of 10 mA is available. The IQ System is used to control the AUX output. 3.22 Memory Backup A memory backup feature is provided which can be disabled, if desired.
IQ P.I.P.–SMT Fig. 4.1 IQ Address Switch (SW1) Location 4 Installation Before beginning, please carefully note: CAUTION: ST ATIC ELECTRICITY STA MA Y DAMAGE THE IQ–P MAY IQ–P.I.P .I.P..–SMT .I.P MODULE. Use caution when handling the unit. Carefully ground yourself BEFORE touching the IQ–P.I.P.–SMT module. For added safety, touch the outer metal collar of either Crown Bus connector (see Figure 2.1). This should safely discharge any static electricity through the ground plane of the module.
IQ P.I.P.–SMT to set the IQ address of the IQ–P.I.P.–SMT. No two IQ components of the same type which are connected to the same Crown Bus can have the same address. Suppose, for example, the IQ System has two Crown Bus loops and this IQ–P.I.P.–SMT is installed into loop 1 and given address 77. No other IQ–P.I.P.–SMT can have the same address in loop 1. However, an IQ– P.I.P.–SMT in loop 2 can have the same address. Different IQ components in the same Crown Bus loop can have the same address.
IQ P.I.P.–SMT Fig. 4.3 Input Switch (S1, S2) Location Fig. 4.4 Input Switch (S1, S2) Settings segments (S1, S2) are required for each setting. Be careful to use both segments or improper operation will result. Switch S1 configures the input to Channel 1 and switch S2 configures the input to Channel 2. CAUTION: The IQ–P.I.P.– SMT input preamplifiers should only be used with microphone or low-level signals. Once the P.I.P.
IQ P.I.P.–SMT Recommendations: Attach a small label to the back of the P.I.P. to identify whether it has been set for microphone or line-level input signals. And keep the output levels low if you are uncertain of the preamplifier settings. Remember, Crown is not liable for damage due to overpowering other components. 3. Set the jumpers JP4 and JP5. If the IQ–P.I.P.
IQ P.I.P.–SMT PLIFIER FROM AM Q43528-1 B A 18 PIN (B) B 20 PIN (A) wiring and, if desired, the phone jack daisy chain wiring. See Section 4.7 for full instructions. 13. Reconnect amplifier to the AC receptacle. A Fig. 4.6 PIP2 Input Adapter Connection cables should extend below the PIP2 input adapter. Next, insert the edge connector of the IQ–P.I.P.–SMT into the PIP2 input adapter (see Figure 4.7) and insert the assembly into the P.I.P. opening in the back of the amplifier.
IQ P.I.P.
IQ P.I.P.–SMT to the Crown Bus with inexpensive twisted-pair wiring (shielded or unshielded). If fiber optic wiring is required contact the Crown Technical Support Group (see page 4). Here are some guidelines for twistedpair wiring: • U se shielded twisted-pair wire at least 26 AWG in size when interference is a problem. The wire should be of good quality and should have low capacitance—30 picofarads/foot or less is good. (West Penn 452 or an equivalent wire works well.
IQ P.I.P.–SMT Figure 4.9 IQ–P.I.P.–SMT Output Connection to Another IQ Component with DIN Connectors Figure 4.10 IQ–P.I.P.–SMT Output Connectionto an IQ Component with a Screw Terminal Plug Connector Figure 4.11 An IQ Component with Screw Terminal Plug Connected to the IQ–P.I.P.
IQ P.I.P.–SMT The next two figures show how to connect the IQ–P.I.P.–SMT to other IQ components with different connectors. Figure 4.10 shows how the Crown Bus output of the IQ–P.I.P.– SMT should be connected to an IQ component with a screw terminal plug. Figure 4.11 shows how the Crown Bus input of the IQ–P.I.P.–SMT should be connected to an IQ component with a screw terminal plug. The IQ components in a Crown Bus loop are wired sequentially. The loop begins and ends with the IQ interface.
IQ P.I.P.–SMT • Do not connect audio and data grounds together. For example, do not connect the audio ground to the Crown Bus ground. The AUX connector is a 3-pin male mini XLR connector. Pins 1 and 3 are used to send a signal and pins 1 and 2 are used to receive a signal. • Turn the entire sound system off before changing any connections. Turn the level controls down before powering the system back up. Crown is not liable for damage incurred when any transducer or component is overdriven. 4.8.
IQ P.I.P.–SMT used to sense the presence of an input signal across pins 1 (ground) and 2 (+). A 2.5 to 15 VDC signal at the input will be interpreted as a logic “high” and will be communicated to the Crown Bus where a host computer or drone can act upon it. A sig- nal less than 2.5 VDC is interpreted as a logic “low.” Note: A negative signal can also be used as a logic low because the signal is internally clamped to protect the internal circuitry. Fig. 4.
IQ P.I.P.–SMT 5 Technical Information The purpose of the IQ–P.I.P.–SMT is to enable an IQ System to control and monitor a P.I.P.-compatible amplifier. The exact features of your unit are determined by the firmware in its microprocessor. Here is a typical list of features: ❏ Control the audio signal polarity. ❏ Control the high-voltage power supplies. ❏ Control the DSPI LED. ❏ Control and monitor the AUX port. In addition, all units can monitor these parameters: ❏ Monitor the input level to the IQ–P.I.P.
IQ P.I.P.–SMT 5.4 IQ System Communications The IQ–P.I.P.–SMT communicates with the host computer via the Crown Bus. Connections to the Crown Bus are made via the 4 and 5-pin locking DIN connectors on the rear panel. IQ commands entering the P.I.P. are fed into an input receiver circuit that converts the 20 mA current loop signal into a standard logic signal that the microprocessor can understand.
IQ P.I.P.–SMT Fig. 5.1 IQ–P.I.P.
IQ P.I.P.–SMT 6 Specifications Crown Bus Data Communication General Protection: If communication is lost, the unit will continue to function with the last commands received. Internal Controls: An 8-segment DIP switch is used to set the IQ address (decimal range: 1–250). Note: If address “0” is selected, the IQ–P.I.P.– SMT will operate in stand-alone mode. Two additional 8-segment DIP switches (one for each channel) set the preamp gain of each input and turn phantom power on and off.
IQ P.I.P.–SMT Frequency Response: ±0.1 dB from 20 Hz to 20 kHz. Crosstalk Ratio: >75 dB at 1 kHz. >65 dB at 20 kHz. Common Mode Rejection (CMR): >70 dB at 60 Hz with +10 dBu input. Total Harmonic Distortion (THD): <0.05% from 20 Hz to 20 kHz. IQ System Data Acquisition Input/Output Monitor Accuracy: Typically ±1 dB. ±2 dB maximum.
IQ P.I.P.–SMT 7 IQ Address Tables This section contains lookup tables for every valid IQ address. The valid addresses are 1 to 250. Remember that address “0” (zero) will put the IQ– IQ Address Switch IQ Address 1 2 3 4 5 6 7 P.I.P.–SMT into a stand-alone mode where it is invisible to the IQ System and acts like a “dumb” balanced auess address dio input.
IQ P.I.P.–SMT special system use. To use the IQ address tables, simply find the address you want and set the IQ address switch of the IQ–P.I.P.– SMT as shown. See Section 4.1 also. Remember: No two IQ components of the same type which are connected to the same Crown Bus loop can have the same address.
IQ P.I.P.
IQ P.I.P.–SMT 8 Service This unit has very sophisticated circuitry which should only be serviced by a fully trained technician. 8.1 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.
IQ P.I.P.–SMT Accessories are not needed—do not send the Reference or Owner’s Manual, cables and other hardware. If you have any questions, please call or write the Crown Technical Support Group. Crown Audio Division Technical Support / Factory Service Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A.
IQ P.I.P.–SMT Crown Factory Service Information Shipping Address: Crown International, Inc., Factory Service, Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, IN U.S.A.
