IQ-MC8 & IQ-MC4…Reference Manual Page 5 IQ-MC Modules Figure 1.1 IQ-MC8 Front Panel 1 Welcome The...

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134505-3 3/04 © 2004 by Crown Audio, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A. Telephone: 574-294-8000. Fax: 574-294-8329. Trademark Notice: IQ2, SmartAmp and PIP are trademarks. Crown and IQ System are registered trademarks of Crown International. Other trademarks are the property of their respective owners. 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. How- ever, 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 Printed on Printed on Printed on Printed on recycled paper. recycled paper. recycled paper. recycled paper. recycled paper. IQ-MC8 & IQ-MC4 - MC Modules

Transcript of IQ-MC8 & IQ-MC4…Reference Manual Page 5 IQ-MC Modules Figure 1.1 IQ-MC8 Front Panel 1 Welcome The...

Page 1: IQ-MC8 & IQ-MC4…Reference Manual Page 5 IQ-MC Modules Figure 1.1 IQ-MC8 Front Panel 1 Welcome The IQ-MC4 and IQ-MC8 modules connect CTs 4200 and CTs 8200 am-plifiers to the IQ Bus

134505-33/04

© 2004 by Crown Audio, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A.Telephone: 574-294-8000. Fax: 574-294-8329. Trademark Notice: IQ2, SmartAmpand PIP are trademarks. Crown and IQ System are registered trademarks of CrownInternational. Other trademarks are the property of their respective owners.

Obtaining Other Language Versions:To obtain information in another language about the use of this product, pleasecontact your local Crown Distributor. If you need assistance locating your localdistributor, please contact Crown at 574-294-8200.

Note: The information provided in this manual wasdeemed accurate as of the publication date. How-ever, updates to this information may have occurred.To obtain the latest version of this manual, pleasevisit the Crown website at www.crownaudio.com.

Printed onPrinted onPrinted onPrinted onPrinted onrecycled paper.recycled paper.recycled paper.recycled paper.recycled paper.

IQ-MC8 & IQ-MC4

- MCModules

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WARNINGTO REDUCE THE RISK OF ELECTRIC

SHOCK, DO NOT EXPOSE THIS

EQUIPMENT TO RAIN OR MOISTURE!

FCC COMPLIANCE NOTICEThis device complies with part 15 of the FCC rules. Operation is subject to the following twoconditions: (1) This device may not cause harmful interference, and (2) this device mustaccept any interference received, including interference that may cause undesired operation.

CAUTION: Changes or modifications not expressly approved by the party responsible forcomplicance could void the user’s authority to operate the euqipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digitaldevice, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonableprotection against harmful interference in a residential installation. This equipment generates,uses, and can radiate radio frequency energy and, if not installed and used in accordance withthe instruction manual, may cause harmful interference to radio communications. However,there is no guarantee that interference will not occur in a particular installation. If thisequipment does cause harmful interference to radio or television reception, which can bedetermined by turning the equipment off and on, the user is encouraged to try to correct theinterference by one or more of the following measures:

• Reorient or relocate the receiving antenna.• Increase the separation between the equipment and receiver.• Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.• Consult the dealer or an experienced radio/TV technician for help.

The information furnished in this manual does not include all of the de-tails of design, production, or variations of the equipment. Nor does itcover every possible situation which may arise during installation, op-eration or maintenance. If you need special assistance beyond the scopeof this manual, please contact Crown Technical Support.

Crown Technical Support1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A.

Phone: 800-342-6939 (North America, Puerto Ricoand Virgin Islands) or 574-294-8200

Fax:574-294-8301 Internet:http://www.crownaudio.com

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Crown Audio, Inc. Susan Whitfield1718 W. Mishawaka Rd. 574-294-8289Elkhart, IN 46517 U.S.A. [email protected]

European Representative’s Name and Address:Nick Owen19 Clos Nant CoslechPontprennauCardiffCF23 8ND United KingdomEquipment Type: Control System ComponentsFamily Name: IQ SeriesModel Name:

EMC Standards:EN 55103-1:1995 Electromagnetic Compatibility – Product Family Standard for Audio, Video,Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 1:EmissionsEN 55103-1:1995 Magnetic Field Emissions-Annex A @ 10 cm and 1 MEN 61000-3-3:1995 Limitation of Voltage Fluctuations and Flicker in Low-Voltage SupplySystems Rated Current ≤16AEN 55022:1992 + A1:1995 & A2:1997 Limits and Methods of Measurement of RadioDisturbance Characteristics of ITE: Radiated, Class B Limits; Conducted, Class BEN 55103-2:1996 Electromagnetic Compatibility – Product Family Standard for Audio, Video,Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 2:ImmunityEN 61000-4-2:1995 Electrostatic Discharge Immunity (Environment E2-Criteria B, 4k VContact, 8k V Air Discharge)EN 61000-4-3:1996 Radiated, Radio-Frequency, Electromagnetic Immunity (Environment E2,criteria A)EN 61000-4-4:1995 Electrical Fast Transient/Burst Immunity (Criteria B)EN 61000-4-5:1995 Surge Immunity (Criteria B)EN 61000-4-6:1996 Immunity to Conducted Disturbances Induced by Radio-Frequency Fields(Criteria A)EN 61000-4-11:1994 Voltage Dips, Short Interruptions and Voltage Variation

Safety Standard:EN 60065: 1998 Safety Requirements – Audio Video and Similar Electronic Apparatus

I certify that the product identified above conforms to the requirements of the EMI CouncilDirective 89/335/EEC as amended by 92/31/EEC, and the Low Voltage Directive 73/23/EES asamended by 93/68/EEC.

Signed Date of issue: March 24, 2004

Larry CoburnTitle: Senior Vice President of Manufacturing

IQ-MC4, IQ-MC8

DECLARATION OF CONFORMITY

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1 Welcome .............................. 5

2 Controls, Connectors & Indicators 6

3 Installation ........................... 7

3.1 Prepare the MC-IQ Module ................... 7

3.2 Install the Wiring ................................... 8

3.3 Adjust System Levels .......................... 10

4 Operation .............................11

4.1 Hardware ............................................. 114.1.1 Data Signal Presence Indicator .... 114.1.2 Preset Indicator ........................... 114.1.3 IQ Bus Input Connector ............... 114.1.4 IQ Bus Daisy Output Connector ......................... 114.1.5 Aux Input/Output and Listen Bus Connector ................... 114.1.6 IQ Bus “Drop Out” Relays ............ 12

4.2 Hardware Controls .............................. 124.2.1 IQ Address Switch (S1) ............... 124.2.2 Reset/Preset Switch ..................... 12

4.3 Amplifier Control and Monitoring ........ 134.3.1 User Presets ............................... 134.3.2 Clip Monitor ............................... 134.3.3 Input Signal Level Monitor .......... 134.3.4 Output Signal Level Monitor ........ 134.3.5 Thermal Headroom Level Monitor ............................. 134.3.6 Ready/Standby Control ............... 144.3.7 Signal Mute ................................ 14

4.3.8 Polarity Inverter ........................... 144.3.9 Input Signal Attenuator ................ 144.3.10 “Ghost Faders” .......................... 144.3.11 Amp Information ....................... 144.3.12 Amp Mode ................................ 144.3.13 Error Reporting ......................... 14

4.4 Signal Processing ............................... 154.4.1 Input Signal Compressor/Limiter .................... 154.4.2 Peak Voltage Limiter ................... 154.4.3 Average Power Limiter ................. 15

4.5 Load Supervision ................................ 16

5 IQ Audio In Depth ................... 17

5.1 A Closer Look at IQ Bus Wiring ........... 17

5.2 Using the AUX Connector .................... 185.2.1 AUX Output ................................ 195.2.2 AUX Input ................................... 20

5.3 Listen Bus ........................................... 20

5.4 Working with RJ-11 and RJ-45Connectors ............................................... 20

5.5 Load Supervision ................................ 215.5.1 Typical Load Characteristics to Know and Understand ............. 22

6 Specifications ....................... 23

7 IQ Address Tables ................... 24

8 Service................................ 28

Warranty ................................ 29

Content

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Figure 1.1 IQ-MC8 Front Panel

1 WelcomeThe IQ-MC4 and IQ-MC8 modulesconnect CTs 4200 and CTs 8200 am-plifiers to the IQ Bus of an IQ Sys-tem ®, allowing the amplifier to becontrolled and monitored via IQ.

The IQ-MC module is an IQ2 ™ seriescomponent. This means it supportsCrown’s IQ2 protocol and requires anIQ System with an IQ2 -compatible IQinterface. IQ2 (universal code) en-ables users and third parties to de-velop custom software objects to con-trol and monitor IQ2 compatible com-ponents like the IQ-MC module.

Each IQ-MC module includes an IQaddress switch allowing the unit tohave a unique address on the IQ Bus.It is powered by the amplifier andincludes a memory backup featurethat enables the amplifier to resumeoperation with all of its settings intactafter a power outage.

We strongly recommend you read allthe instructions, warnings and cau-tions contained within. Also, for yourprotection, please send in the war-ranty registration card today and savethe bill of sale since it is your officialproof of purchase.

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2 Controls, Connectors & Indicators

IQ BUS AUX IQ ADDRESS

LISTEN BUS

PRESET

OUT IN

DATA

1 2 4 8 16 32 64 128

IQ BusOutput

Connector

IQ BusInput

ConnectorAUX

Input/Outputand Listen Bus

Connector

Reset/PresetSwitch

PresetIndicator

DataIndicator

IQ AddressSwitch (S1)

Figure 2.1 IQ-MC8 Controls, Connectors and Indicators

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Each of the eight switches in S1 has avalue which doubles as the switchnumber increases. For exampleswitch 1 has a value of 1; switch 2 hasa value of 2; switch 3 has a value of 4;switch 4 has a value of 8 and so on.

3 Installation

3.1 Prepare the IQ-MCModuleFirst, turn off and unplug the amplifier.

Set the IQ address switch S1. Bygiving each IQ component a uniqueaddress, it can be individually con-trolled and monitored. Whenever theIQ System wants to send a commandto just one IQ component, it first sendsits address and then the commanddown the IQ Bus.

S1 has eight segments because itactually contains eight tiny switchesinside. The word “ON” is printed onthe switch along its lower left side toindicate the ON position and theswitches are numbered along thebottom (Figure 3.1).

The address is determined by addingthe values of all “ON” switches. InFigure 3.1, switches 1, 3, 4 and 7 areon. Simply add the values to find theaddress: 1+4+8+64=77.

A convenient series of IQ addresstables are included in Section 6. Thetables show the switch settings for all250 addresses.

No two IQ components of the sametype which are connected to the sameIQ Bus can have the same address.*Suppose, for example, an IQ Systemhas two IQ Bus loops, 1 and 2, andthis IQ-MC module is to be installedinto loop 1 and given an address of77. No other IQ-MC modules can begiven the same address in loop 1.However, an IQ-MC module in loop 2can have the same address.

Different IQ components in the sameIQ Bus loop can have the same ad-dress. For example, both an IQ–USM810 mixer/processor and an IQ-MCmodule can use address 77 in thesame loop.

A valid IQ address is any number from1 to 250. Do not use a number higherthan 250 since they are reserved forspecial use. An address of “0” (zero)should only be used for “stand alone”mode. Setting the address switch to“0” disables the IQ Bus port.

1 2 4 8 16 32 64 128

VALU

E

1 2 3 4 5 6 7 8ONSW1

Figure 3.1 Address Switch (S1)

* Note: All IQ PIP™ modules (IQ-PIP-USP2,IQ-PIP-MEM, IQ-PIP-SMT, etc.) are consid-ered the same type, and so may not sharethe same address on the same IQ Bus.

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3.2 Install the WiringConnect the IQ-MC module to the IQsystem via the IQ Bus. The IQ compo-nents in a IQ Bus loop are wiredsequentially. The loop begins andends with the IQ interface. The outputof one IQ component “loops” to theinput of the next and so on as shownin Figure 3.2.

There are three different types of con-nectors used for IQ Bus wiring on IQcomponents. These include DIN con-nectors, screw terminal plugs, andRJ-45 connectors. The IQ-MC usesRJ-45 connectors that accept stan-dard RJ-45 plugs like the one shownin Figure 3.6, allowing the use of in-dustry-standard straight-thru typenetwork cables. The right RJ-45 con-nector is used for input and the left RJ-45 connector is used for daisy output.

Figure 3.2 Standard IQ Bus Wiring �Loops� from the Output tothe Input of each IQ Component (for Hub-Style IQ Bus wiring)

OUT IN

IQ Interface

IQ Component

MC-IQ

IQ Component

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The following examples show how to connect the MC-IQ to other IQ components:

Figure 3.3 RJ-45 Output to Barrier Block Input

Figure 3.5 RJ-45 Input to Barrier Block Output

Figure 3.4 RJ-45 Output to Din Input

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3.3 Adjust System LevelsAdjust attenuator levels both on theamplifier and on the IQ-MC module

Figure 3.6 RJ-45 Input to Din Output

Figure 3.7 RJ-45 Output to RJ-45 Intput

control panels within your IQ soft-ware for optimum system gain.

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4 OperationWith the IQ-MC option, your CTs4200 and CTs 8200 amplifiers canbe monitored and controlled from aremote location through the use ofan IQ System. This module featuresSmartAmp™ capabilities which willenable the amplifier to function au-tomatically. For example, the IQ-MCmodule can automatically limit theaudio signal, also detect and reportvarious problems.

In addition, the IQ-MC Load Su-pervision feature has the ability toverify the status of the loads in realtime.

The IQ-MC module uses Crown’sIQ2 protocol. This makes it possiblefor a user to design custom graphicdisplay modules to control and moni-tor the unit with IQ2-compatible IQsoftware. This allows even greaterflexibility within Crown’s IQ softwarevia custom control pages. Plus, theIQ2 protocol provides for third-partyprogramming for system controllerssuch as those from AMX andCrestron.

The following sections describe theIQ-MC features and operation.Where specified, some features areaccessed via controls located onthe unit itself. However, many of thefeatures can be controlled or con-figured using IQ for Windows soft-ware. Commands are transmittedvia an IQ interface to the specifiedIQ component (an IQ2-compatibleinterface is required). Please con-tact your Crown representative orCrown’s Technical Support Group ifyou are unfamiliar with IQ software.

4.1 Hardware4.1.1 Data Signal PresenceIndicatorAn amber Data Signal Presence Indi-cator (DATA) is provided on the IQ-MC connector panel as well as thefront of the amplifier. It flashes when-ever commands addressed to the IQ-MC module are received. To assistwith troubleshooting, an option thatforces the DATA indicator to remain litis available through IQ software.

4.1.2 Preset IndicatorA green PRESET indicator is providedon the IQ-MC connector panel. Thisindicator signals the number of thecurrently selected preset by emittinga series of flashes which match thepreset number, followed by a pause.The indicator will continuously repeatthe number selected until a change ismade to any setting.

4.1.3 IQ Bus Input ConnectorAn RJ-45 connector provides theinput connection to the IQ Bus. Drop-out relays maintain loop integrity inthe event power is removed from theIQ-MC module.

4.1.4 IQ Bus Daisy OutputConnectorAn RJ-45 connector is provided fornormal daisy wiring output to the nextdevice on the loop in the IQ Bus.

4.1.5 AUX Input/Output andListen Bus ConnectorAn RJ-11 connector provides threefunctions. The AUX output delivers15 VDC at 70 mA maximum outputwhen switched on and may be con-

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trolled via software or may be pro-grammed to switch when a fail con-dition is present on any channel.*The high-impedance (10 K ohm)AUX input can sense logic signalsand can be programmed to activatesystem mute or report fault condi-tions when a logic high is present.(See Section 5.2.2 for more informa-tion.) All amplifier channel’s outputcan be monitored as a balancedline level signal which is sent to pins1 and 6 of the RJ-11 connector (soft-ware selectable).

4.1.6 IQ Bus “Drop Out”Relays“Drop out” relays are provided on theIQ Bus ports to maintain the continuityof the IQ communication loop even ifthe IQ-MC module loses power.

4.2 Hardware ControlsThe following IQ-MC controls are ac-cessed via hardware switches locatedon the unit.

4.2.1 IQ Address Switch (S1)An 8-section DIP switch is used to setthe IQ address of the unit. A valid IQaddress is any number from 1 to 250.Numbers higher than 250 are reservedfor special use.

An address of “0” places the unit instand-alone mode. In this mode, theIQ bus port is disabled and the IQ-MC module will not function with IQsoftware.

This switch is located on the rear ofthe amplifier. Each IQ component ona IQ Bus is given a unique IQ addressso it can be independently controlledand monitored. Two or more IQ com-ponents of the same type shouldNEVER have the same address onthe same IQ Bus loop.

4.2.2 Reset/Preset SwitchA recessed reset/preset switch, ac-cessible from outside the IQ-MCpanel, performs two functions. First, itenables the IQ-MC module to be re-stored to factory default settings, andsecond, allows the user to recall anyof 10 presets. A straightened paperclip or similar small object is requiredto press the reset switch.

-To select one of the 10 presets,complete the following steps:

Remove all input signals. With thepower on, briefly press the switch forless than two seconds to togglethrough the 10 user-defined presetsstored in firmware. Each press willincrement the selected preset by one.After the switch is released, the DATAlight will flash for a moment, then thePRESET indicator will blink to indicatethe preset number selected. Restoreinput signals.

-To restore the unit to the factorydefault settings, complete the fol-lowing steps:

Remove all input signals. With thepower on, press the switch and holdfor more than 2 seconds, or until theDATA indicator blinks twice, and allsettings will be reset to factory de-fault. When the switch is released, theDATA indicator will flash rapidly for amoment. Restore input signals.

* The AUX output uses inverse logic whenit is configured to report a fail condition.Normally high, it switches low when anychannel fails a test. In this way it can alsoindicate a power loss.

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-To clear all memory and set tofactory default presets:

Remove all input signals. Press in andhold the switch while applying powerto the unit. The settings will be reset tofactory default, with the firmware re-writing to EEPROM memory. Impor-tant: This action will re-write thememory and erase stored presets.With the button held in and powerapplied, the DATA and PRESET indi-cators will both be lit. When the buttonis released, the DATA and PRESETindicators will alternately blink for afew moments, indicating that memoryis being written, then the DATA indi-cator will flash for a moment. After theunit has been reset to the factorydefault settings.

4.3 Amplifier Control andMonitoringThe following IQ-MC module fea-tures are accessed via IQ for Win-dows software.

4.3.1 User PresetsThe parameters for all functions canbe saved as presets. A total of 10 userpresets can be stored in the IQ-MCEEPROM memory. Preset names arestored on the module.

4.3.2 Clip MonitorThe Clip indicator of each channel ofthe amplifier can be monitored by theIQ System. The IQ-MC module cancause a warning to flash on your com-puter screen via IQ for Windows soft-ware indicating a Clip event, Also, itcan report Clip events to it’s AUX port.

4.3.3 Input Signal LevelMonitorThe input signal level of each channelcan be monitored. This monitor fea-

ture has a range from +20 dBu to –40dBu in ½-dB steps.

4.3.4 Output Signal LevelMonitorThe output signal level of each chan-nel of the amplifier can be monitored.This monitor feature has a range from0 dB to –40 dB where 0 dB is refer-enced to the rated output voltage ofthe amplifier model.*

The IQ-MC module features scaledoutput level meters. By factory de-fault, the meters are calibrated suchthat 0 dB equals the amplifier’s ratedoutput into 8 ohms. In 70V/100V mode,the meters default to 0 dB equals 70/100 Vrms. Auto-scaling is handled bythe software.

4.3.5 Thermal HeadroomLevel MonitorThe Thermal Headroom level** of eachchannel of the amplifier can be moni-tored by the IQ software. This levelrepresents the percent of availablepower/thermal capacity that is cur-rently being used within the outputsection of the amplifier.

When the thermal headroom levelreaches 100%, the amplifier cannotproduce any more power and it willbegin to limit the drive level to theoutput devices to protect them fromtoo much stress***. The Thermal Lim-iter feature of the IQ-MC module canbe set to engage upon a pre-selectedthermal level. (See Section 4.3.14)

* This is assumed to be 70V or the rated8-ohm output.

** Thermal Headroom on your Crown am-plifier may be labeled Junction Tempera-ture Simulation (JTS).

*** See the amplifier’s Reference or Owner’sManual for more information about JTSand how it works.

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4.3.6 Ready/Standby ControlEach channel’s output relay can beindependently turned on and off.

4.3.7 Signal MuteThe output signal of each channelcan be independently muted. Thisfunction typically provides 80 dB ormore of attenuation.

4.3.8 Polarity InverterThe polarity of the input signal ofeach channel can be independentlyinverted.

4.3.9 Input Signal AttenuatorAn attenuator at the input of eachchannel is used to control the inputsignal level. Each attenuator has arange from 0 dB to –80 dB in ½ dBsteps. (Zero equals no attenuation.)

4.3.10 “Ghost Faders”These indicators let you monitor thesignal path gain where it may differfrom manual gain set on input at-tenuation and output trim as the re-sult of limiting or compression. Theyappear as flying faders “behind” theinput attenuators.

4.3.11 Amp InformationSeveral useful items of informationabout the host amplifier are deter-mined by the IQ-MC at start-up.These include manufacturer, model,date code, serial number, and revi-sion level. These can be printedfrom the system inventory (no on-screen display is available).

4.3.12 Amp ModeThe IQ-MC module screen can show:

• The position of the Dual/Bridgemode switches

• The position of the back-panelattenuators

However, the Dual/Bridge mode ofthe amplifier cannot be controlledvia software.

4.3.13 Error ReportingThe IQ-MC module can report sixtypes of errors: Clip, Thermal, Fault,Load, Dual/Bridge-mode switch set-ting has been changed, Volume at-tenuator setting has been changed.

You can route error reports for eachcondition above to:

• Windows IQ software (systemsoftware).

• AUX OUT.

• Both software and AUX OUT.

If you choose system software noti-fication, the IQ System will notify youof the error. If you choose AUX OUTnotification, the AUX OUT signal willswitch from OFF to ON when a se-lected error has occurred. If youprefer, error reporting can beswitched off. Following is a descrip-tion of each error condition:

Clip: You can choose to be informedwhen an excessive number of Clipevents occur over a unit of time ineither channel of the amplifier. WhenClip error reporting is on, an alert willbe generated when the number ofClip events per unit of time specifiedexceeds a count that you set. TheCount control lets you set a numberof Clip events per unit of time al-lowed before an error is generated.The range is 1 to 100. The Timecontrol lets you set the unit of time inseconds during which the numberof Clip error events are counted forpossible error reporting. The rangeis 1 to 10 seconds.

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Thermal: You can choose to bewarned if the thermal level rises abovea predetermined level. The Thresholdcontrol lets you set the thermal levelabove which an error message will bereported. The range is from 1 to 100%.

Fault: You can choose to be warnedwhen an amplifier “fault” conditionoccurs when a channel fails.

Load: You can choose to be warnedif the impedance of the load beingdriven by the amplifier falls out of apre-selected range. See Section 4.5for instructions on setting up the loadsupervision feature.

Dual/Bridge Switch Changed: Youcan choose to be warned if the Dual/Bridge Switch setting has beenchanged. This condition risks ampli-fier damage or distortion. If you seethis error, manually set the Dual/BridgeSwitch to the correct position.

Attenuator Setting Changed: Youcan choose to be informed that theback-panel attenuator setting hasbeen changed since you set it up.

4.4 Signal Processing4.4.1 Input SignalCompressor/LimiterAn input signal compressor/limiteris available for each channel. Thereare five parameters which controlthis feature:

On/Off: Turns this function on or off.

Threshold: Sets the threshold, indB, above which the compressoracts. The level is measured at theinput to the module and correspondsto the level shown on an input meter.The compressor is “feed-forward,”meaning that the level detection

point is located before the gain con-trol stage. The range is from +16dBu to –40 dBu.

Attack Time: Sets the attack time ofthe compressor. The attack time isdefined as the time it takes the com-pressor to attenuate the input signalby 10 dB. The range is from 1 milli-second to 2 seconds.

Release Time: Sets the release timeof the compressor. The release timeis defined as the time it takes thecompressor to increase the inputgain by 10 dB. The range is 100milliseconds to 30 seconds.

Compressor Ratio: Sets the com-pression ratio for the compressor.The range is 1, 2, 4, 8, 16, 32, ∞ to 1.*

4.4.2 Peak Voltage LimiterThis limits the peak voltage output ofthe amplifier. There are four param-eters which control this limiter.

On/Off: Turns the limiter on or off.

Attack: Attack time is adjustablefrom 10 milliseconds to 100 millisec-onds per 10 dB of overdrive.

Release: Release rate is adjustablefrom 100 milliseconds to 10 sec-onds per 10 dB or release.

Threshold: Absolute voltage thresh-old is adjustable from 12 Vpk to 255Vpk in 1 volt steps.

4.4.3 Average Power LimiterLimits the long-term power outputfrom the amp. The actual outputlimiter threshold is determined byan absolute power threshold andthe nominal load impedance set-ting. There are five parameters whichcontrol this limiter.

* 1:1 is the same as “off.”

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On/Off: Turns the limiter on or off.

Average Power Threshold: Thethreshold is adjustable from 10 to1000 watts.**

Nominal Load Impedance: Thenominal load impedance is settablefrom 1 to 1000 ohms, and should beset to correspond to the nominalimpedance rating of the load con-nected to the respective channel.

Attack Time: Adjustable from 1 sec-ond to 30 seconds in 1 second in-crements.

Release Time: Adjustable from 1second to 30 seconds in 1 secondincrements.

4.5 Load SupervisionThe Load Supervision feature al-lows real time monitoring of the loadconnected to each amplifier chan-nel. When enabled, the IQ-MC con-tinuously monitors the amplifier out-put voltage and current and calcu-lates the long-term average loadimpedance. The measured load im-pedance is compared against userdefined high and low limits. If eitherlimit is exceeded, the status indica-tor and/or IQ System error reportingfunctions alert the user of the prob-lem. There are six controls and twoindicators for each channel:

On/Off: Turns the Load Supervisionfeature on or off.

High Limit: Sets the upper boundabove which the system will report a“high” error status.

Low Limit: Sets the lower boundbelow which the system will report a“low” error status.

Nominal Load Impedance: Sets theexpected average impedance for theconnected load. This value deter-mines the output signal level requiredfor test. This parameter is also usedby the average power limiter to deter-mine the expected power limit thresh-old. See Section 4.4.3.

Calculate: This button invokes animpedance calculator. Entering out-put voltage and power will give theexpected impedance.

Include in Standard Error Report-ing: Enables error reporting so thatany high/low status condition is re-ported via the IQ System (See Sec-tion 4.3.13).

Report to AUX: Enables any high/low status condition to be reportedvia the IQ-MC AUX port output (SeeSection 4.1.5).

Test Indicator: This indicator lightswhen the load supervision algorithmis actually performing a load imped-ance calculation and test verification.

Low/Normal/High Indicator: Thisindicator shows the present statusof the load with respect to the userdefined high/low limits.

Z avg Monitor: Reports actual cal-culated average load impedance.

** The average power threshold should beset per the loudspeaker’s “long-term”power rating (consult your speakerdocumentation).

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5 IQ Audio In DepthThis section provides additional in-formation about Crown’s IQ Systemwith special guides to aid in theinstallation and use of the IQ-MCmodule. For more information aboutany of these topics, contact CrownTechnical Support.

5.1 A Closer Look at IQ BusWiringThe IQ-MC module must be con-nected to a IQ Bus loop having anIQ2-compatible IQ interface in or-der for the IQ System to control ormonitor it. The IQ Bus is a serialcommunication loop designed totransmit IQ commands and data. Asimplemented in the IQ-MC, it is a 20milliamp current loop operating at aBAUD rate of 38.4 K. The loop mustbe unbroken to function properly.

If the system includes an IQ–INT 3interface, it can accept eight different

IQ Bus loops or zones. Dividing thesound system into different zones,each with its own IQ Bus loop, canhave several advantages. The fol-lowing list contrasts those advan-tages with those of a single loop.

Multiloop Advantages

• A break in communication in oneloop does not affect other loops.

• Over 250 IQ components of thesame type can be used in a sys-tem.

• The same IQ address can beused more than once (once perloop per model).

Single Loop Advantages(with IQ-INT 3 interfaces)

• The IQ System can send andretrieve data faster in a singleloop.

• “Real time” level display of agreater number of units is pos-sible.

CH 8

Figure 4.1 MC-IQSignal Flow Block Diagram

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The IQ-MC module can be con-nected to the IQ Bus with inexpen-sive twisted-pair wiring (shielded orunshielded). If fiber optic wiring isrequired contact Crown TechnicalSupport (see page 28).

Here are some guidelines for twisted-pair wiring:

• Use shielded twisted-pair wireat least 26 AWG in size wheninterference is a problem. Thewire should be of good qualityand should have low capaci-tance—30 picofarads/foot orless is good. The shield servestwo purposes: First, it helps pre-vent the IQ data signal fromtransmitting to nearby audio wir-ing. Second, it helps prevent out-side RF from interfering with thedata signal. However, in mostcases interference is not a prob-lem and, since unshielded wirehas lower capacitance, it is abetter choice.

• Minimize the total capacitanceof each IQ Bus loop. The totalcapacitance should be less than30 nanofarads. Allow for ap-proximately 60 picofarads foreach IQ component in a loop.This accounts for a slight delaywhich occurs as data signalspass through a component.

• Add an IQ Repeater (RPT3) forvery long loops—greater than1,000 feet (305 m)—or when re-quired by high-capacitancewire. Although we recommend arepeater for loops longer than1,000 feet, it is often possible togo 2,000 feet (610 m) or more.The most significant characteris-tic of the wire is its capacitance.Lower capacitance allowslonger loops. Unshielded wireusually has less capacitance.

• Never use the ground wire in amic snake line. It may some-times be convenient to run IQBus data signals to and fromstage monitor amplifiers alongunused wire pairs in a mic snake.Do not use the ground wire whichis normally connected to pin 1 onan XLR connector or data noisewill be added to the audio lines.Use only the signal lines whichnormally connect to pins 2 and 3of the XLRs.*

Outside RF interference is seldom aproblem for a IQ Bus loop—espe-cially if shielded twisted-pair wire isused. However, there are extremesituations when fiber optic wiring isrecommended. For example, locat-ing a IQ Bus loop next to an AM radiotransmission line may require fiberoptic cabling. An extremely long IQBus loop distance may also requirefiber optic cabling.

5.2 Using the AUXConnectorThe IQ System offers tremendousflexibility and the auxiliary featureconnector provides a means of tap-ping into it. It can be used to turnperipherals on/off, send a signal toanother system component, receivea signal from another component,and send a line level audio signal ofamplifier’s output.

The AUX connector is an RJ-11 type.Pins 2 and 5 are used to receive asignal and pins 3 and 4 are used tosend a signal.

* Because typical mic cables have high ca-pacitance, the maximum possible CrownBus loop distance will be less.

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5.2.1 AUX OutputWhen the auxiliary feature is turned onby the IQ for Windows software +15VDC is supplied across pins 3(ground) and 4 (+). A total of 70milliamps of current is available. Thesmart switch mosfet protects againstshorts (see Figure 5.1).

There are many possible uses for theAUX output. For example, it can beused to turn on auxiliary cooling fans.To do this the AUX connector mightbe used to close a relay. The relaywould then turn the fans on or off. Thisis shown in Figure 5.2.

+15 VDC

internalcontrollogic

SMARTMOSFET

Figure 5.1 The Internal AUX Circuit

Figure 5.2 A Sample AUX Output Circuit

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By monitoring the operating condi-tion of amplifiers with the IQ Systemsoftware, the need for additionalcooling would be apparent. Thesame software could then be usedto turn on the appropriate AUX con-nector. (For more information aboutturning the auxiliary feature on/off,consult the IQ for Windows softwaredocumentation.)

5.2.2 AUX InputDepending on the IQ software be-ing used, the AUX connector can beused to sense the presence of aninput signal across pins 2 (+) and 5(ground). A +5 to +15 VDC signal atthe input will be interpreted as alogic “high” and will be communi-cated to the IQ Bus where a hostcomputer or controller can act uponit. A signal less than +1.6 VDC isinterpreted as a logic “low.”*

5.3 Listen BusUse the diagram in Figure 5.3 to con-nect an audio monitoring system, suchas a headphone preamp, to the IQ-MC Listen Bus.

Figure 5.4 demonstrates how mul-tiple amplifiers can be monitoredusing the Listen Bus. Crown’s IQ forWindows software allows you to se-lect the amplifier and channel youwish to monitor.

5.4 Working with RJ-11 andRJ-45 ConnectorsPin assignments for standard RJ-11and RJ-45 connectors are indicatedin Figure 5.5.

* A negative signal can also be used as alogic low because the signal is internallyclamped to protect the internal circuitry.

Figure 5.3Listen Bus Connection

Amp 1

Amp 2

Figure 5.4 Multiple-AmpListen Bus Configuration

Figure 5.5 RJ-11 & RJ-45Pin Assignments

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When wiring RJ-11 connectors, it isgood practice to follow the USOCprotocol for RJ-11 connector cable.This protocol assigns wire colors asfollows:

1 white-green 4 white-blue

2 white-orange 5 orange-white

3 blue-white 6 green-white

When wiring RJ-45 connectors, it isgood practice to follow the EIA/TIA568B protocol for RJ-45 connectorcable. This protocol assigns wirecolors as follows:

1 white-orange 5 white-blue

2 orange-white 6 green-white

3 white-green 7 white-brown

4 blue-white 8 brown-white

Extra care must be taken when at-taching RJ-11 and RJ-45 connectorsto cable. Make sure you use the ap-propriate crimping tool and verify thatthe connector is properly seated intothe tool, or damage will result.

Contact Crown Technical Support foradditional information about workingwith RJ-11 and RJ-45 connectors.

5.5 Load SupervisionApplicationsThe IQ-MC Load Supervision featurecan be used to monitor the amplifierload in real time with almost any pro-gram material. Average load imped-ance is calculated as a function ofamplifier output voltage and current.The system requires approximately20-30 mA of average amplifier outputcurrent for adequate supervision. Thisallows typically low average outputpower levels of less than ½ watt with

most loads. The maximum load im-pedance for reliable system perfor-mance is limited to about 50 ohms.Higher impedances can be measuredbut may require higher amplifier out-put levels for reliable operation.

Most amplifier/load systems can beconfigured and supervised by fol-lowing these steps:

1 Configure your audio system us-ing a known “good” load, thenenable the Load Supervision fea-ture.

2 Provide typical program materialat a level high enough to light the“test” indicator.

3 Run the system at this level until theaverage impedance stabilizes. Thismay take seconds to minutes de-pending on level, duty-cycle, etc.

4 Set the nominal impedance at themeasured value average. Thisoptimizes the supervision algo-rithm for voltage and current levelsversus the actual load. Note: Ahigher nominal setting will requirehigher output levels.

5 Set the high limit at twice averageand the low limit at one-fourthnominal.*

6 Let the system run for extendedperiods using any and all typicalprogram material.

7 Adjust the high/low limits, if neces-sary, to account for any variancein average measured impedance.

8 Enable error reporting, if desired.

* These limits are somewhat arbitrary butshould be a good starting point.

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This procedure should work well formost applications. However, someapplications can be a little moredifficult. Some very low-level and/orlow duty-cycle signals may not ad-equately “test” the load. Lab andsituation testing have shown outputlevels as small 40 dB below ratedamplifier output to be enough formost low-impedance loads. Higherimpedance loads such as thoseused in “lightly-loaded” 70V distri-bution lines may require signal levelnear 20 dB below rated output.

The “Nominal Load Impedance”control is used to optimize the sys-tem for the most accurate calcula-tion of load impedance. It should beset to the expected nominal (or rated)impedance of the “normal” load. Thehigh limit should be set for at least 2times the expected nominal or ac-tual measured load, while the lowlimit should be set to ½ the expectednominal or actual measured load.

The following example calculatesthe SPL necessary for supervisionof a typical 8-ohm system. While theresulting 80-dB SPL @ 1 meter isdefinitely above conversation level,it is not uncomfortable.

An “8 ohm” example:

30 mA into 8 ohms = 0.007watts

8-ohm driver sensitivity = 100dB for1W @ 1 meter

0.007W/1W = –20dB

Required SPL for supervision test is100dB – 20dB = 80dB SPL @ 1 meter

5.5.1 Typical Load Character-istics to Know and UnderstandIt is well known that the typical loud-speaker impedance is not the samefor all frequencies. This variance isdue to the effect of electrical proper-ties such as the expected increasein impedance at high frequenciesdue to driver voice-coil inductance,or the peaks and valleys due topassive crossovers. Testing of vari-ous passive boxes has shown peaksof 100 ohms or more! Low frequencyimpedance variation can come fromthe interaction of the driver compli-ance with that of the box. The lowfrequency variations are usually widebandwidth and may vary from 6 to30 ohms on an 8-ohm driver.

These anomalies are easily aver-aged out by the IQ-MC supervisionalgorithm in most systems. How-ever, there may be some extremesituations for very narrow bandwidth(i.e. single-note) signals and/or verywidely varying loads that the algo-rithm simply cannot overcome. Inthese cases, widening the high andlow limits will help decrease the “sen-sitivity” of supervision and decreasechance of “nuisance” error reports.

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6 SpecificationsGeneralInternal Controls: An 8-segment DIPswitch sets the IQ address (decimalrange: 1–250)*. A Reset/Preset switch,accessible with a straightened paperclip through the module’s front panel,selects the next user preset if pressedfor less than 2 seconds, resets set-tings to “factory default ” if it ispressed for more than 2 seconds, orre-writes from firmware to flashmemory restoring all settings to fac-tory default if it is pressed while apply-ing power. Jumpers select thru orprocessed signal for daisy output ofeach channel.

Connectors: IQ Bus: RJ-45 con-nector for input, RJ-45 connector fordaisy output. AUX In/Aux Out/ListenBus: RJ-11 connector.

Indicators: A yellow DATA indicatorflashes when a valid IQ command isreceived from the IQ System via theIQ Bus. The DATA indicator can beforced on to facilitate rapid trouble-shooting of IQ Bus wiring. A greenPRESET indicator flashes to indi-cate the user preset number cur-rently selected in memory. If thePRESET indicator does not flash thepreset number when selected, thisindicates the preset has been modi-fied by the user.

Memory Backup: 8 Kbyte EEPROMfor backup of run-time parameters,presets, and program storage. Ca-pable of 80,000 writes minimum.

* If address “0” is selected, the MC-IQ willoperate in stand-alone mode. In thismode, the Crown bus port is deactivated.

IQ Bus Data CommunicationProtection: If communication is lost,the unit will continue to function withthe last commands received.

Data Rate: 38.4 K BAUD.

Data Format: Serial, binary, asyn-chronous; 1 start bit; 1 stop bit; 8 databits; no parity.

IQ Bus Interface Type: Opticallyisolated 20 milliamp serial loop.

Operation: Half duplex.

Transmission Distance: Variablefrom 200 to 3000 feet (61 to 914 m),depending upon wire capacitance.Typically 1000 feet (305 M) usingshielded twisted-pair wire, #26 AWGor larger. Can be extended with anIQ Repeater.

AudioPlease note: The audio specificationsare referenced to 0.775 V (0 dBu). Mea-surements were made at the output ofthe IQ-MC module, itself.

Maximum Input Level: +20 dBu.

Dynamic Range: >100 dB (A-weighted, 20 Hz to 20 kHz).

Frequency Response: ±0.5 dBfrom 20 Hz to 20 kHz.

Common Mode Rejection (CMR):50 dB (typical).

Total Harmonic Distortion + Noise(THD+N): <0.05% (1 kHz, 0dBu).

Maximum Output Level: +20 dBu.

IQ System Data AcquisitionMulti-Channel, 14-bit Analog toDigital Converter.

Input/Output Monitor Accuracy:Typically ±1 dB.

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7 IQ Address TablesThe following pages in this sectioncontain lookup tables for every validIQ address. The valid addresses are1 to 250. Remember that address “0”(zero) will put the IQ-MC into a stand-alone mode where it is invisible to theIQ System and acts like a “dumb”balanced audio input. Do not use anaddress number higher than 250!Addresses above 250 are reservedfor special system use.

Remember: No two IQ componentsof the same type which are connectedto the same IQ Bus loop can have thesame address.

To use the IQ address tables, simplyfind the address you want and set theIQ address switch of the IQ-MC mod-ule as shown.

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Figure 7.1 IQ Address Switch (S1) Settings from 0 through 83

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Figure 7.1 IQ Address Switch (S1) Settings from 84 through 167

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Figure 7.1 IQ Address Switch (S1) Settings from 168 through 250

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8 ServiceTo obtain factory service, fill out theservice information page found inthe back of this manual and send italong with your proof of purchaseand the defective unit to the Crownfactory.

For warranty service, we will pay forground shipping both ways in theUnited States. Contact Crown Fac-tory Service or Technical Support toobtain prepaid shipping labels priorto sending the unit. Or, if you prefer,you may prepay the cost of shipping,and Crown will reimburse you. Sendcopies of the shipping receipts toCrown to receive reimbursement.

Your repaired unit will be returned viaUPS ground. Please contact us if otherarrangements are required.

Factory Service ShippingInstructions:1. When sending a Crown product to

the factory for service, be sure to fillout the service information formthat follows and enclose it insideyour unit’s shipping pack. Do notsend the service information formseparately.

2. To ensure the safe transportationof your unit to the factory, ship it inan original factory packing con-tainer. If you don’t have one, call orwrite Crown’s Parts Department.With the exception of polyure-thane or wooden crates, any otherpacking material will not be suffi-cient to withstand the stress ofshipping. Do not use loose,small size packing materials.

3. Do not ship the unit in any kind ofcabinet (wood or metal). Ignoringthis warning may result in exten-sive damage to the unit and thecabinet. Accessories are notneeded—do not send the productdocumentation, cables and otherhardware.

If you have any questions, please callor write the Crown Technical SupportGroup.

Crown Factory Service1718 W. Mishawaka Rd.

Elkhart, Indiana 46517 U.S.A.

Telephone: 574-294-8200800-342-6939 (North America,

Puerto Rico, and VirginIslands only)

Facsimile:574-294-8301 (Technical

Support)574-294-8124 (Factory

Service)

Internet:http://www.crownaudio.com

Always use theoriginal factory packto transport the unit.

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IQ-MC ModulesUNITED STATES & CANADA

SUMMARY OF WARRANTYCrown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A.warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER ofeach NEW Crown product, for a period of three (3) years from the date of purchase bythe original purchaser (the “warranty period”) that the new Crown product is free ofdefects in materials and workmanship. We further warrant the new Crown productregardless of the reason for failure, except as excluded in this Warranty.

ITEMS EXCLUDED FROM THIS CROWN WARRANTYThis Crown Warranty is in effect only for failure of a new Crown product which occurredwithin the Warranty Period. It does not cover any product which has been damagedbecause of any intentional misuse, accident, negligence, or loss which is covered underany of your insurance contracts. This Crown Warranty also does not extend to the newCrown product if the serial number has been defaced, altered, or removed.

WHAT THE WARRANTOR WILL DOWe will remedy any defect, regardless of the reason for failure (except as excluded), byrepair, replacement, or refund. We may not elect refund unless you agree, or unless weare unable to provide replacement, and repair is not practical or cannot be timely made.If a refund is elected, then you must make the defective or malfunctioning productavailable to us free and clear of all liens or other encumbrances. The refund will be equalto the actual purchase price, not including interest, insurance, closing costs, and otherfinance charges less a reasonable depreciation on the product from the date of originalpurchase. Warranty work can only be performed at our authorized service centers or atthe factory. Warranty work for some products can only be performed at our factory. Wewill remedy the defect and ship the product from the service center or our factory withina reasonable time after receipt of the defective product at our authorized service centeror our factory. All expenses in remedying the defect, including surface shipping costs inthe United States, will be borne by us. (You must bear the expense of shipping the productbetween any foreign country and the port of entry in the United States and all taxes,duties, and other customs fees for such foreign shipments.)

HOW TO OBTAIN WARRANTY SERVICEYou must notify us of your need for warranty service within the warranty period. Allcomponents must be shipped in a factory pack, which, if needed, may be obtained fromus free of charge. Corrective action will be taken within a reasonable time of the date ofreceipt of the defective product by us or our authorized service center. If the repairs madeby us or our authorized service center are not satisfactory, notify us or our authorizedservice center immediately.

DISCLAIMER OF CONSEQUENTIAL & INCIDENTAL DAMAGESYOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTAL DAMAGESRESULTING FROM ANY DEFECT IN THE NEW CROWN PRODUCT. THIS INCLUDESANY DAMAGE TO ANOTHER PRODUCT OR PRODUCTS RESULTING FROM SUCHA DEFECT. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATIONS OFINCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OREXCLUSION MAY NOT APPLY TO YOU.

WARRANTY ALTERATIONSNo person has the authority to enlarge, amend, or modify this Crown Warranty. ThisCrown Warranty is not extended by the length of time which you are deprived of the useof the new Crown product. Repairs and replacement parts provided under the terms ofthis Crown Warranty shall carry only the unexpired portion of this Crown Warranty.

DESIGN CHANGESWe reserve the right to change the design of any product from time to time without noticeand with no obligation to make corresponding changes in products previouslymanufactured.

LEGAL REMEDIES OF PURCHASERTHIS CROWN WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, YOU MAY ALSOHAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE. No action to enforce thisCrown Warranty shall be commenced later than ninety (90) days after expiration of thewarranty period.

THIS STATEMENT OF WARRANTY SUPERSEDES ANY OTHERSCONTAINED IN THIS MANUAL FOR CROWN PRODUCTS.

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WORLDWIDE EXCEPT USA & CANADASUMMARY OF WARRANTY

Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENTOWNER of each NEW Crown1 product, for a period of three (3) years from the dateof purchase by the original purchaser (the “warranty period”) that the new Crownproduct is free of defects in materials and workmanship, and we further warrant thenew Crown product regardless of the reason for failure, except as excluded in thisCrown Warranty.1 Note: If your unit bears the name �Amcron,� please substitute it for the name �Crown� inthis warranty.

ITEMS EXCLUDED FROM THIS CROWN WARRANTYThis Crown Warranty is in effect only for failure of a new Crown product which occurredwithin the Warranty Period. It does not cover any product which has been damagedbecause of any intentional misuse, accident, negligence, or loss which is covered underany of your insurance contracts. This Crown Warranty also does not extend to the newCrown product if the serial number has been defaced, altered, or removed.

WHAT THE WARRANTOR WILL DOWe will remedy any defect, regardless of the reason for failure (except as excluded), byrepair, replacement, or refund. We may not elect refund unless you agree, or unless weare unable to provide replacement, and repair is not practical or cannot be timely made.If a refund is elected, then you must make the defective or malfunctioning productavailable to us free and clear of all liens or other encumbrances. The refund will be equalto the actual purchase price, not including interest, insurance, closing costs, and otherfinance charges less a reasonable depreciation on the product from the date of originalpurchase. Warranty work can only be performed at our authorized service centers. Wewill remedy the defect and ship the product from the service center within a reasonabletime after receipt of the defective product at our authorized service center.

HOW TO OBTAIN WARRANTY SERVlCEYou must notify us of your need for warranty service within the warranty period. Allcomponents must be shipped in a factory pack. Corrective action will be taken within areasonable time of the date of receipt of the defective product by our authorized servicecenter. If the repairs made by our authorized service center are not satisfactory, notify ourauthorized service center immediately.

DISCLAIMER OF CONSEQUENTIAL & INCIDENTAL DAMAGESYOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTAL DAMAGESRESULTING FROM ANY DEFECT IN THE NEW CROWN PRODUCT. THIS INCLUDESANY DAMAGE TO ANOTHER PRODUCT OR PRODUCTS RESULTING FROM SUCHA DEFECT.

WARRANTY ALTERATIONSNo person has the authority to enlarge, amend, or modify this Crown Warranty. ThisCrown Warranty is not extended by the length of time which you are deprived of the useof the new Crown product. Repairs and replacement parts provided under the terms ofthis Crown Warranty shall carry only the unexpired portion of this Crown Warranty.

DESIGN CHANGESWe reserve the right to change the design of any product from time to time without noticeand with no obligation to make corresponding changes in products previouslymanufactured.

LEGAL REMEDIES OF PURCHASERNo action to enforce this Crown Warranty shall be commenced later than ninety (90) daysafter expiration of the warranty period.

THIS STATEMENT OF WARRANTY SUPERSEDES ANY OTHERSCONTAINED IN THIS MANUAL FOR CROWN PRODUCTS.

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Crown Factory Service InformationShipping Address: Crown Customer Service,

1718 W. Mishawaka Rd., Elkhart, IN U.S.A. 46517Phone: 1-800-342-6939 or 1-574-294-8200 Fax: 1-574-294-8124

Owner’s Name:

Shipping Address:

Phone Number: Fax Number:

E-mail: Model:

Serial Number: Purchase Date:

NATURE OF PROBLEM(Be sure to describe the conditions that existed when the

problem occurred and what attempts were made to correct it.)

______________________________________________________________________________

__________________________________________________________________________________

______________________________________________________________________________

__________________________________________________________________________________

______________________________________________________________________________

__________________________________________________________________________________

Other equipment in your system: ___________________________________________

______________________________________________________________________________

__________________________________________________________________________________

______________________________________________________________________________

________________________________________________________________________________________________________________________________________________________________

________________________________________________________________________________________________________________________________________________________________

__________________________________________________________________________________

If warranty has expired, payment will be:❏❏❏❏❏ Cash/Check ❏❏❏❏❏ VISA ❏❏❏❏❏ MasterCard ❏❏❏❏❏ C.O.D. ❏ ❏ ❏ ❏ ❏ P.O. for Crown Dealer

Card Number: ________________________________________________

Exp. Date:____________ Signature:______________________________

ENCLOSE THIS PORTION WITH THE UNIT.DO NOT MAIL SEPARATELY.

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