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Innovative Electronic Designs 4400 Series, Руководство по установке

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4400 AND 4800 SERIES MIXERS

MAY 1999

SECTION

4

GROUP

20

SUB

B

PAGE

5

INSTALLATION INSTRUCTIONS

MODELS 4400 SERIES AND 4800 SERIES AUTOMATIC MIXERS

Figure 3 - Rear terminal connections

AC power and outputs

REAR TERMINAL CONNECTIONS, AC POWER AND OUTPUTS

Содержание 4400 Series

Страница 1: ...rs also referred to as shunts are used extensively in the 4400 and 4800 Series Automatic Mixers to select or set up alternatives or options A jumper consists of a small conductive clip encased in a molded plastic case It is designed to slide onto two adja cent pins in a pin strip array The pin strips used in this equipment have spacings of 100 inches In the diagrams in this document a jumper shunt...

Страница 2: ... flow of air between them Do not block the louvers in the tops Rack mounting is usually accomplished with four 10 32 flat head machine screws and cup washers This prevents scratching of the front panel when appearance is important but it does not provide grounding If grounding to the rack is required it is recom mended that a grounding strap be added If appearance is not critical then the use of f...

Страница 3: ... Force On Force Off 10 Overall View of Printed Circuit Board 11 Direct Output Level Controls 12 Gain Adjustment of Gated Inputs 13 Phantom Power Settings 14 Enabling Disabling Priority of Gated Inputs 15 Filibuster Limit Set of Gated Inputs 16 Last Mic On and Onput for Gated Inputs 17 Force On and Force Off for Gated Inputs 18 Digital Attenuator Defeat for Gated Inputs 19 Discriminator Defeat for ...

Страница 4: ...4800 SERIES AUTOMATIC MIXERS INSTALLATION INSTRUCTIONS Innovative Electronic Designs Inc 9701 Taylorsville Road Louisville Kentucky 40299 USA Phone 502 267 7436 Fax 502 267 9070 Internet http www iedaudio com h h h h h Figure 2 Rear terminal connections Inputs REAR TERMINAL CONNECTIONS INPUTS ...

Страница 5: ...ERS MAY 1999 SECTION 4 GROUP 20 SUB B PAGE 5 INSTALLATION INSTRUCTIONS MODELS 4400 SERIES AND 4800 SERIES AUTOMATIC MIXERS Figure 3 Rear terminal connections AC power and outputs REAR TERMINAL CONNECTIONS AC POWER AND OUTPUTS ...

Страница 6: ...ax 502 267 9070 Internet http www iedaudio com h h h h h Figure 4 Remote Control Connections Input and or Main Output Option 1 Model 142 Voltage Controlled Digital Attenuator VCDA Wiring shown is for input and or main output option 1 110V Voltage Controlled Amplifier Auxiliary Input VCA option is Option A Use 22 AWG twisted pair with overall shield Belden 8451 or equivalent REMOTE CONNECTOR INPUT ...

Страница 7: ...ROUP 20 SUB B PAGE 7 INSTALLATION INSTRUCTIONS MODELS 4400 SERIES AND 4800 SERIES AUTOMATIC MIXERS Figure 5 Remote Control Connections 120P Setup Control Figure 6 Remote Control Connections Logic Output INPUT AND OR MAIN OUTPUT OPTION 2 AND LOGIC OUT ...

Страница 8: ...tive Electronic Designs Inc 9701 Taylorsville Road Louisville Kentucky 40299 USA Phone 502 267 7436 Fax 502 267 9070 Internet http www iedaudio com h h h h h REMOTE CONNECTOR INPUT AND OR MAIN OUTPUT OPTION 1 USING 412PLCs FOR REMOTE LEVEL CONTROL Figure 7 Rear terminal connections Input and or Main Output Option 1 using 412PLC for remote level control ...

Страница 9: ... 20 SUB B PAGE 9 INSTALLATION INSTRUCTIONS MODELS 4400 SERIES AND 4800 SERIES AUTOMATIC MIXERS COMBINING SWITCH AND REMOTE OUTPUT LEVEL CONTROL USING 412PLC Figure 8 Rear terminal connections Combining switch and remote output level control using 412PLC ...

Страница 10: ...RS INSTALLATION INSTRUCTIONS Innovative Electronic Designs Inc 9701 Taylorsville Road Louisville Kentucky 40299 USA Phone 502 267 7436 Fax 502 267 9070 Internet http www iedaudio com h h h h h Figure 9 Remote control connections Force On Figure 10 Remote control connections Force Off REMOTE CONNECTOR FORCE ON FORCE OFF ...

Страница 11: ...4400 AND 4800 SERIES MIXERS MAY 1999 SECTION 4 GROUP 20 SUB B PAGE 11 INSTALLATION INSTRUCTIONS MODELS 4400 SERIES AND 4800 SERIES AUTOMATIC MIXERS Figure 11 Overall view of printed circuit board ...

Страница 12: ... h Figure 12 Direct Output Level Controls Either line or microphone level can be se lected for each Direct Output An overall level control for each output provides adjustment from maximum to full off As seen in the figure the level controls are located on the circuit board near the back edge just in front of the screw terminal connector strip The controls are accessable by removing the rear top co...

Страница 13: ...inputs as de livered from the factory is set at 35 dB With the proper jumpers installed microphone level gains between 26 dB and 46 dB gains between 26 dB and 46 dB can be achieved by adjusting the pot as shown By removing the jumper a gain of 0 dB can be achieved Other gain values are possible by changing SIP values Consult the factory for additional information The controls and jumpers are acces...

Страница 14: ... will have phantom power available A jumper MUST be in place in either the on or the off position or the input will be open and floating and susceptible to extra neous noise pickup Phantom power jumper positions are shown in the figure below Phan tom power is provided to inputs from the 4822 card 15 V is standard and 30 48 V can be provided with the with the pahntom power op tion See figure 31 Pha...

Страница 15: ... which when enabled for an input allows that input to take precedence over inputs which do not have the priority feature enabled That is to say that when an input in priority is gated on other in puts not in priority are immediately caused to gate off Other inputs which are in priority are not affected To place an input in priority place a jumper on the appropriate pins as shown in the figure belo...

Страница 16: ...num ber of inputs which are gated on in the com bined mixer count toward the limit The limit can be set at 1 2 3 4 or ALL The ALL setting defeats the feature If mixers are combined and the limit on a particular mixer is set for 2 an input on that mixer can gate on only when the total number of inputs which are on on both mixers is less than 2 A jumper MUST be placed in one but not more than one of...

Страница 17: ... on or remains on until another input is gated on in its place This fea ture prevents the system from sounding dead by turning on the number 1 input when all other inputs are gated off Shown below are the details of Onput jumper placement When using the Onput feature with a combined 8 in put mixer Onput must be selected on only one of the two input boards If selected on the A board input 1 will ga...

Страница 18: ... a continuous on state or a continuous off state respectively When an input is forced on it still contributes to the attenuation of the Main Out put Digital Attenuator to the Filibuster count and to the Discriminator unless specifically re moved from these functions by defeating the Digital Attenuator and or the Discriminator see pages 22 and 23 When an input is forced off it is continuously off a...

Страница 19: ... same level and since they are summed or added in the mix bus doubling the number of inputs would double the output power an increase of 3 dB By attenuating the output by 3 dB for each doubling of the number of inputs the output level is kept approximately constant If an input is used for a source which is not in the same acoustic environment such as a source of background music or a microphone wh...

Страница 20: ...ource such as a tape player then it is not desireable to have it on the discriminator bus A line level input could raise the level of the discriminator threshold to such an extent that it would be very difficult to gate on another gated input For this reason the Discriminator Defeat has been provided To defeat the Discriminator function for an input place a jumper on the appropriate pins When the ...

Страница 21: ...rom the factory with the discriminator sensitivity optimized for use with 4 8 microphones normal sensitivity There are two other sensitivities provided with each mixer In applications where only two or three microphones are connected to the mixer the discriminator might need to be less sensi tive low sensitivity In applications in which the microphones are mounted in the ceiling the discriminator ...

Страница 22: ...be set sufficiently long so that normal pauses in speaking will not cause the input to gate off Release Time is factory preset to approximately 2 5 seconds a time suitable for most typical speakers For a speaker with different speech habits or style it may be necessary to make adjustments It can be set anywhere within the range of 0 5 to 8 seconds Setting is accomplished by means of trimpots which...

Страница 23: ...es Jumper setup INPUT OPTION CONTROL LINES The Input Option Control Lines are factory set according to the input option selected and should not be changed Refer to the figure be low for details of jumper setup The table below shows which control line must have a jumper in place for each input op tion OPTION NUMBER INPUT MODULE CONTROL LINE 0 None None 1 110V 2 2 120P 1 4 110C None ...

Страница 24: ...jumpers Refer to the fig ure below for the details of jumper setup When shipped from the factory there is a jumper in the Post Gate position for each in put The Pre Option selection feeds the input sig nal prior to input processing to the Auxiliary Output mix bus Input processing refers to the selected input option The Post Option selection feeds the input sig nal to the Auxiliary Output mix bus a...

Страница 25: ...tup When shipped from the factory there is a jumper in the Post Gate position for each in put The Pre Option selection feeds the input sig nal prior to input processing to the Direct Out put Input processing refers to the selected input option The Post Option selection feeds the input sig nal to the Direct Output after it has received in put processing but before it is gated The Post Gate selectio...

Страница 26: ... be made to feed either the Main Mix Bus pre or post combining the Aux Mix Bus pre or post combining any of these buses or none by the placement of the ap propriate jumpers See the figure below for the details of jumper setup The post combining jumper location is offered only if stereo is needed on a 4800 mixer Placing jumpers in the post combining posi tions on both input boards of a 4800 creates...

Страница 27: ...ER ENABLE DISABLE High Pass Filter High pass filters are in cluded one per gated input to reduce un wanted low frequency signals introduced into the gated inputs The filters have a slope of 6 dB per octave and are 3 dB down at 150 Hz As delivered from the factory the high pass fil ters are bypassed no filtering To enable the filter for an input remove the appropriate jumper Refer to the figure bel...

Страница 28: ...ww iedaudio com h h h h h Figure 28 Gated Off Attenuation of Gated Inputs Jumper setup GATED OFF ATTENUATION OF GATED INPUTS Gated Off Attenuation When a gated input is Off its signal to the outputs is attenuated by a given amount Two Off attenuation levels are jumper selectable As shipped from the factory the Off attenuation is set at full mute By placing a jumper as shown in the figure the Off a...

Страница 29: ... line or microphone level can be se lected for each Auxiliary Output An overall level control for each output provides ad justment from maximum to full off As seen in the figure level controle are located on the circuit board near the back edge just in front of the screw terminal connector strip The controls are accessable by loos ening the thumb screws and removing the rear top cover Level increa...

Страница 30: ...070 Internet http www iedaudio com h h h h h Figure 30 Output option control lines Jumper setup OUTPUT OPTION CONTROL LINES The Output Option Control Lines are fac tory set according to the output option se lected and should not be changed Refer to the figure below for details of jumper setup The table below shows which control line must have a jumper in place for each out put option OPTION NUMBER...

Страница 31: ...ANTOM POWER OPTION VOLTAGE SELECTION If the 30 V 48 V Phantom Power option is installed the voltage for phantom power ing of condenser microphones can be se lected to be 15 V 30 V or 48 V The selection is made on the 4822 board as il lustrated below Only one voltage can be selected for all inputs Do not apply more than one jumper or system failure could result If no jumper is used there will be no...

Страница 32: ... transformer is plugged into an active AC outlet of the proper voltage 2 the On Off switch is in the On position depressed and 3 the power indicator located to the left of the switch is not lit If these conditions are met proceed with fuse replacement Turn Off the power switch switch pro trudes from the case and unplug the power transformer before removing the cover or damage to the mixer could re...

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