Extron electronics MPA 152 Скачать руководство пользователя страница 25 | Manualshive

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-0!!MPLIlERs)NSTALLATION

2-13

Controlling multiple amplifiers with one volume controller

3EVERAL-0!UNITSCANBEDAISYCHAINEDSOTHATONEVOLUME

CONTROLLERCANSIMULTANEOUSLYREGULATETHEVOLUMEOFALLTHE

AMPLIlERS

N

As additional amplifiers are added to the daisy chain,

the sensitivity of the volume potentiometer will change.

The maximum volume level (fully clockwise) will not

be affected. However the effectiveness of the minimum

volume level (fully counterclockwise) in reducing the

volume to inaudible levels decreases as more amplifiers

are added to the daisy chain.

N

When more than two MPAs are attached to the chain,

sound may begin to be heard even if the levels have been

set to their lowest. The muting of the output however

can be remedied with a contact closure button attached

between the Vol/Mute and Ground pin of the first MPA

in the chain.

4OREGULATEMULTIPLEAMPLIlERSWITHASINGLEVOLUMECONTROLLER

FOLLOWTHESEINSTRUCTIONS

1

!TTACHALLTHREEPINSOFTHEVOLUMECONTROLLERTOTHE

CORRESPONDINGPINSONTHElRST-0!UNITONLYGROUND

TOGROUND-UTE6OLTO-UTE6OLAND6TO6

2

5SEJUMPERWIRESTOCONNECTTHE6OL-UTEPINSOFTHElRST

ANDEACHSUCCESSIVEAMPLIlER

3

5SEJUMPERWIRESTOCONNECTTHEGROUNDPINSOFTHElRSTAND

EACHSUCCESSIVEAMPLIlER

10V

VOL/MUTE

50mA

10V

VOL/MUTE

50mA

10V

VOL/MUTE

50mA

10V

VOL/MUTE

Extron
VCM 100 AAP

Extron
MPA 152
daisy chain

Figure 2-9 — Controlling multiple amplifiers with
one volume controller

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Содержание MPA 152

Страница 1: ...User s Manual Mini Power Amplifier 68 1320 01 Rev A 02 09 MPA 152...

Страница 2: ...utzerdaraufaufmerksam machen da im Inneren des Geh uses dieses Produktesgef hrlicheSpannungen dienichtisoliert sind und die einen elektrischen Schock verursachen k nnen herrschen CHTUNG Lesen der Anle...

Страница 3: ...E INTERFERENCE WILL NOT OCCUR IN A PARTICULAR INSTALLATION F THIS EQUIPMENT DOES CAUSE HARMFUL INTERFERENCE TO RADIO OR TELEVISION RECEPTION WHICH CAN BE DETERMINED BY TURNING THE EQUIPMENT OFF AND ON...

Страница 4: ...OUTLET CONSULT AN ELECTRICIAN FOR REPLACEMENT OF THE OBSOLETE OUTLET 0ROTECT THE POWER CORD FROM BEING WALKED ON OR PINCHED PARTICULARLY AT PLUGS CONVENIENCE RECEPTACLES AND THE POINT WHERE THEY EXIT...

Страница 5: ...FROM THE AUDIO SOURCE AND OR PROJECTOR NSURE THAT THE PROJECTOR S AUDIO OUTPUT IS SET TO variable out ULTIPLE INPUT OPTIONS CAN BE USED SIMULTANEOUSLY AND RESULT IN AUDIO MIXING SEE Audio Inputs IN HA...

Страница 6: ...NO SOUND SHOULD COME OUT c 2ETURN TO THE 0 AND RAISE THE LEVEL UNTIL SOUND DISTORTION lRST OCCURS THEN LOWER SLIGHTLY UNTIL THE DISTORTION DISAPPEARS 4HIS SETTING ENSURES THAT WHATEVER THE PROJECTOR V...

Страница 7: ...PROCEDURES 2 3 4ABLETOP PLACEMENT 2 3 0ROJECTOR MOUNTING 2 4 0LENUM PLACEMENT 2 5 5NDER FURNITURE MOUNTING 2 6 MPA RONT 0ANEL EATURES 2 8 0 2EAR 0ANEL EATURES 2 9 0OWER CONNECTOR 2 10 UDIO INPUTS 2 11...

Страница 8: ...ii 0 MPLIlER s 4ABLE OF ONTENTS Table of Contents cont d...

Страница 9: ...MPA 152 Amplifier 1 Chapter One Introduction About this Manual About the MPA 152 MPA 152 Features...

Страница 10: ...SMOKE AND lRE CODE FOR IN THE CEILING INSTALLATIONS AND CAN BE STORED IN THE PLENUM SPACE OF THE ROOF LTERNATIVELY THE UNITS CAN BE MOUNTED ON A TABLETOP IN A RACK UNDER A DESK OR IN A PROJECTOR MOUN...

Страница 11: ...ANNEL STEREO OR DUAL MONO INTO A OHM SPEAKER SYSTEM OR UP TO WATTS RMS CHANNEL INTO AN OHM SYSTEM Front panel controls NPUT LEVEL BASS AND TREBLE ARE EASILY ADJUSTED FROM THE FRONT PANEL Quick plug sp...

Страница 12: ...0 MPLIlER s NTRODUCTION Introduction cont d 1 4...

Страница 13: ...MPA 152 Amplifier 2 Chapter Two Installation Mounting the MPA 152 MPA 152 Front Panel Features MPA 152 Rear Panel Features...

Страница 14: ...AMBIENT TEMPERATURE OF THE RACK ENVIRONMENT MAY BE GREATER THAN ROOM AMBIENT TEMPERATURE 4HEREFORE INSTALL THE EQUIPMENT IN AN ENVIRONMENT COMPATIBLE WITH THE MAXIMUM AMBIENT TEMPERATURE 4MA SPECIlED...

Страница 15: ...TOM OF THE UNIT 2 3ECURE THE 0 TO THE SHELF WITH TWO X SCREWS IN OPPOSITE CORNERS OF THE BASE SEE lGURE BELOW 3 NSTALL FALSE FACEPLATE S OR OTHER UNIT S TO THE RACK SHELF 4 TTACH THE SHELF TO THE RACK...

Страница 16: ...RUBBER FEET FROM THE BOTTOM OF THE 0 2 OUNT THE RECEIVER TO ANY OF THE BRACKETgS THREE MOUNTING PLATES 4HE UNIT SHOULD BE VERTICALLY MOUNTED WITH THE REAR PANEL HOUSING THE INPUT AND OUTPUT CONNECTORS...

Страница 17: ...OUND THE PROJECTOR POLE AND INSERT THE TWO ENDS THROUGH THE SLOTTED HOLES IN THE CLAMPING PLATE AND THEN THROUGH THE ROUND HOLES IN THE BACKING BRACE N The provided U bolt fits a pole with an external...

Страница 18: ...LOCATION OF THE SCREW HOLES OF THE BRACKET ON THE MOUNTING SURFACE 3 RILL MM DIAMETER PILOT HOLES MM DEEP IN THE MOUNTING SURFACE AT THE MARKED LOCATIONS 4 NSERT WOOD SCREWS INTO THE FOUR PILOT HOLES...

Страница 19: ...0 MPLIlER s NSTALLATION 2 7...

Страница 20: ...52 STEREO DUAL MONO 3 2 Figure 2 4 MPA 152 Front Panel Features a Power LED 4HE GREEN IS LIT WHEN THE UNIT RECEIVES POWER b Stereo Dual Mono toggle switch LLOWS THE USER TO CHOOSE BETWEEN STEREO OUTPU...

Страница 21: ...PLY TO THE AMPLIlER USING THE POLE CAPTIVE SCREW CONNECTOR e RCA input connectors 4HESE FEMALE 2 CONNECTORS ACCEPT LINE LEVEL MONO OR STEREO AUDIO SOURCES f 3 5 mm stereo input 4HIS INPUT ACCEPTS A MM...

Страница 22: ...mooth A A DC Power Cord Captive Screw Connector AC Power Cord Ground 12 VDC External Power Supply 12 VDC 3 A POWER 12V 3A MAX Figure 2 6 Connecting power N The length of the exposed wires in the strip...

Страница 23: ...stripping process is critical The ideal length is 3 16 5 mm Any longer and the exposed wires may touch causing a short circuit between them Any shorter and the wires can be easily pulled out even if t...

Страница 24: ...n them Any shorter and the wires can be easily pulled out even if tightly fastened by the captive screws C Do not tin the wires Tinned wire does not hold its shape and can become loose over time 7IRE...

Страница 25: ...ound may begin to be heard even if the levels have been set to their lowest The muting of the output however can be remedied with a contact closure button attached between the Vol Mute and Ground pin...

Страница 26: ...HT AND LEFT CHANNELS WILL BE MIXED AND SUMMED FOR A DUAL MONO OUTPUT 7ITH AN OHM LOAD THE AMPLIlER PRODUCES UP TO WATTS CHANNEL 7ITH A OHM LOAD THE AMPLIlER PRODUCES UP TO WATTS PER CHANNEL C Do not s...

Страница 27: ...MPA 152 Amplifier 3 Chapter Three Operation Setting up the MPA 152 Amplifier Remote Control Options...

Страница 28: ...ORTION DISAPPEARS 4HIS SETTING WILL ENSURE THAT WHATEVER THE VOLUME SETTING OF THE AUDIO SOURCE NO CLIPPING WILL OCCUR Setting bass and treble DJUST THE 0 BASS AND TREBLE AS FOLLOWS 1 5SE THE BASS POT...

Страница 29: ...rol Options a Using the projector s IR remote OR A PROJECTOR WITH VARIABLE AUDIO OUTPUTS CONNECT THE PROJECTOR AUDIO OUTPUT TO THE 0 AUDIO INPUT 5SE THE PROJECTORgS 2 REMOTE TO CONTROL THE PROJECTORgS...

Страница 30: ...0 MPLIlER s PERATION Operation cont d 3 4...

Страница 31: ...MPA 152 Amplifier A Appendix A Reference Information Specifications Included Parts Accessories...

Страница 32: ...4HE THREE INPUTS ARE INDIVIDUALLY BUFFERED AND MIXED TOGETHER ONNECTORS MM CAPTIVE SCREW CONNECTOR POLE MAIN INPUT MM MINI AUDIO JACK TIP RING SLEEVE PAIR 2 MPEDANCE K OHMS BALANCED UNBALANCED COUPLED...

Страница 33: ...VARIABLE VOLTAGE 0IN 6OLUME CONTROL VOLTAGE RANGE 6 MUTE TO 6 MAXIMUM VOLUME General XTERNAL POWER SUPPLY 6 TO 6 Z EXTERNAL TO 6 MAX REGULATED 0OWER INPUT REQUIREMENT 6 UP TO 4EMPERATURE HUMIDITY 3TO...

Страница 34: ...IN PLENUM AIRSPACES MEETS 5 FOR HEAT AND SMOKE RELEASE EXCLUDING THE POWER SUPPLY MEETS 5 FOR SAFETY TICK LASS 3 6 4 HOURS 7ARRANTY YEARS PARTS AND LABOR N All nominal levels are at 10 N Specification...

Страница 35: ...0 0ROJECTOR MOUNTING KIT 23 DEEP 5 BASIC RACK SHELF 23 DEEP 5 RACK SHELF KIT 23 DEEP 5 BASIC RACK SHELF 235 DEEP 5 RACK SHELF KIT 23 DEEP 5 BASIC RACK SHELF 235 DEEP 5 RACK SHELF KIT 6 6OLUME CONTROL...

Страница 36: ...0 MPLIlER s 2EFERENCE NFORMATION Reference Information cont d A 6...

Страница 37: ...DOES NOT APPLY IF THE FAULT HAS BEEN CAUSED BY MISUSE IMPROPER handling care electrical or mechanical abuse abnormal operating conditions or non Extron authorized modification to the product If it ha...

Страница 38: ...FAX Extron Europe 800 3987 6673 Inside Europe Only 31 33 453 4040 31 33 453 4050 FAX Extron Asia 800 7339 8766 Inside Asia Only 65 6383 4400 65 6383 4664 FAX Extron Japan 81 3 3511 7655 81 3 3511 765...

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