AustralianMonitor-AMCplus250-pwr-sm维修电路原理图.pdf

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1、 Australian Monitor 1 Clyde Street, Silverwater NSW 2128 Australia +61 2 9647 1411 .au SERVICE INFORMATION AMC+250 MIXER AMPLIFIER CONTENTS: OPERATION MANUAL SCHEMATIC DIAGRAMS COMPONENT OVERLAYS TEST PROCEDURE REPLACEMENT PARTS LIST SERVICE BULLETINS RadioFans.CN 收音机爱 好者资料库AMC+ SERIES30W/60W/120W/2

2、50W MIXER AMPLIFIERSINSTALLATION AND OPERATION MANUALRadioFans.CN 收音机爱 好者资料库1. Save the carton and packing material even if the equipment has arrived in good condition. Should you ever need to ship the unit, use only the original factory packing.2. Read all documentation before operating your equipm

3、ent. Retain all documentation for future reference.3. Follow all instructions printed on unit chassis for proper operation.4. Do not spill water or other liquids into or on the unit, or operate the unit while standing in liquid.5. Make sure power outlets conform to the power requirements listed on t

4、he back of the unit.6. Do not use the unit if the electrical power cord is frayed or broken. The power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords and plugs, convenience receptacles, a

5、nd the point where they exit from the appliance.7. Always operate the unit with the AC ground wire connected to the electrical system ground. Precautions should be taken so that the means of grounding of a piece of equipment is not defeated.8. Mains voltage must be correct and the same as that print

6、ed on the rear of the unit. Damage caused by connection to improper AC voltage is not covered by any warranty.9. Have gain controls on amplifiers turned down during power-up to prevent speaker damage if there are high signal levels at the inputs.10 Power down and disconnect units from mains voltage

7、before making connections.11. Never hold a power switch in the “ON” position if it wont stay there itself!12. Do not use the unit near stoves, heat registers, radiators, or other heat producing devices.13. Do not block fan intake or exhaust ports. Do not operate equipment on a surface or in an envir

8、onment which may impede the normal flow of air around the unit, such as a bed, rug, weathersheet, carpet, or completely enclosed rack. If the unit is used in an extremely dusty or smoky environment, the unit should be periodically “blown free” of foreign matter.14. Do not remove the cover. Removing

9、the cover will expose you to potentially dangerous voltages. There are no user serviceable parts inside.15. Do not drive the inputs with a signal level greater than that required to drive equipment to full output.16. Do not connect the inputs / outputs of amplifiers or consoles to any other voltage

10、source, such as a battery, mains source, or power supply, regardless of whether the amplifier or console is turned on or off.17. Do not run the output of any amplifier channel back into another channels input. Do not parallel- or series-connect an amplifier output with any other amplifier output. Au

11、stralian Monitor Inc is not responsible for damage to loudspeakers for any reason.18. Do not ground any red (“hot”) terminal. Never connect a “hot” (red) output to ground or to another “hot” (red) output!19. Non-use periods. The power cord of equipment should be unplugged from the outlet when left u

12、nused for a long period of time.20. Service Information Equipment should be serviced by qualified service personnel when: A. The power supply cord or the plug has been damaged. B. Objects have fallen, or liquid has been spilled into the equipment C. The equipment has been exposed to rain D. The equi

13、pment does not appear to operate normally, or exhibits a marked change in performance E. The equipment has been dropped, or the enclosure damaged.THIS SAFETY INFORMATION IS OF A GENERAL NATURE AND MAY BE SUPERSEDED BY INSTRUCTIONS CONTAINED WITHIN THIS MANUALIMPORTANT SAFETY INFORMATIONPAGE 3AMC+ SE

14、RIES INSTALLATION AND OPERATION MANUALThe Australian Monitor AMC+ series of amplifiers takes the heritage and reliability of our famous AMIS series amplifiers and integrates these features into low cost amplifiers for applications where reliability is everything, but the more elaborate features of o

15、ur AMIS series are not required.Available in 30, 60, 120 and 250 watt versions, the AMC+ series are 2 RU mixer amplifiers, featuring 70/100 volt line and 4 ohm outputs, and 4 universal mic/line inputs.Master volume and overall treble and bass controls are provided, along with Vox triggered muting (d

16、efeatable), giving channel 1 priority over inputs 2, 3 and 4. There is also the facility to add a tone generator card. The Australian Monitor AMC+ series gives the contractor a low cost alternative in applications that are price sensitive, but still require a high quality of sound reproduction and r

17、eliability. AUS, EUR, USA Copyright 1st Apr 2005 Rev A: 1st Apr 2005 Rev B: 6th Jun 2006 Rev C: 26th May 2008This symbol is intended to alert the user to the presence of uninsulated “dangerous voltage” within the products enclosure that may be of sufficient magnitude to constitute a risk of electric

18、 shock to persons.This symbol is intended to alert the user to the presence of important operational and maintenance (servicing) instructions in the literature accompanying the appliance.To prevent electric shock do not use this (polarised) plug with an extension cord, receptacle or other outlet unl

19、ess the blades can be fully inserted to prevent blade exposure. To prevent electric shock, match wide blade of plug to wide slot, fully insert.Caution:CAUTIONCAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK), NO USER SERVICEABLE PARTS INSIDE, REFER SERVICING TO QUALIFIED S

20、ERVICE PERSONAL.WARNING!TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.RISK OF ELECTRIC SHOCK DO NOT OPENINTRODUCTION AND CONTENTSINTRODUCTION 3FRONT PANEL 4REAR PANEL 5INSTALLATION 6TROUBLESHOOTING AND BLOCK DIAGRAM 7FUNCTIONAL NOTES AND INTERNAL ADJUS

21、TMENTS 8DIMENSIONS 9SPECIFICATIONS 10 11PAGE 4AMC+ SERIES INSTALLATION AND OPERATION MANUALFRONT PANEL1 CH 14These control the levels for each channel input.2 BassThere is 12dB of cut and boost at 100Hz.3 TrebleThere is 9dB of cut and boost at 10kHz.4 MasterThis controls the overall mixed output lev

22、el.5 OnThis LED indicates the unit is powered “on”.6 PowerThis switch switches power on or off the mains. The up position is on.562341PAGE 5AMC+ SERIES INSTALLATION AND OPERATION MANUALREAR PANEL123461 CH 14Each channel input section has two inputs: XLR input This is a balanced microphone input. It

23、has an input sensitivity of 1mV. RCA input This is an unbalanced line level input. It has an input sensitivity of 150mV. The two RCA sockets are summed to mono internally.2 REC OutputThe REC output is on unbalanced RCA connectors. The output level is 150mV into 10kohm at rated output. The output is

24、dual mono. The REC output is not affected by the MASTER volume control or the BASS and TREBLE controls. The REC output does not receive the tone signal if the optional tone generator module is installed.3 Line OutputThe LINE output is on a balanced XLR connector. The output level is 0.775V into 1k a

25、t rated output. Note: When wiring the LINE output as unbalanced, Pin2 should be wired as hot and Pin1 should be wired as ground/shield. Do not wire Pin3. 4 Direct OutThe speaker connections are on the 12 pole terminal strip. There is a low impedance output (OHM) and a distributed line voltage output

26、 (LINE). 70V out is available on 115V models. 100V out is available on 230V/240V models.Note: Only connect one output either Distributed Line or Low Impedance per channel. Do not connect LowZ and 70/100V at the same time. The output strip comes fitted with a touch-proof cover held in place by two M3

27、 machine screws with flat and spring washers.5 IEC Mains Input SocketThis is a standard IEC 3 pin socket. It accepts a standard IEC mains cable, provided. The fuse draw at 5 contains the mains fuse and a spare. The mains fuse is a time lag (slow blow) HRC 20mm x 5mm ceramic type fuse. Always replace

28、 the fuse with one of the same value and type. Note: Always disconnect power to the amplifier before replacing fuses. 6 (Optional) Tone Module These terminals are for use with an optional tone module (not supplied). Use Australian Monitor ATC5488 module.7 Phantom Power12V phantom power is available

29、for condenser or electret microphones on the XLR input when this switch is pushed in.Minimum Impedance AMC+30 AMC+60 AMC+120 AMC+250Distributed Line Output 70V (115V version) 166ohm 83ohm 41ohm 20ohm 100V (230/240V version) 333ohm 166ohm 83ohm 40ohmLow Impedance Output (both versions) 4ohm 4ohm 4ohm

30、 4ohmThe ratings are: AMC+30 AMC+60 AMC+120 AMC+250230V/240V model 0.5A 1.6A 2A 2.15A115V model 1A 3.15A 4A 6.3A57PAGE 6AMC+ SERIES INSTALLATION AND OPERATION MANUALINSTALLATIONMounting When rack mounting, it is advisable to allow 1 rack space above and below the amplifier. When multiple amplifiers

31、are mounted in a rack, exhaust fans should be used on the rack. Airflow for cooling the AMC30, AMC60 and AMC120 is by convection from bottom to top. Airflow for cooling the AMC250 is by fan from front to side.Direct Output The output terminal strip accepts wire sizes from 16-22AWG (1.5mm2 0.35mm2) o

32、r spade lugs. The following table should be used as a guideline for cable sizes. Regulations in your area may require different gauged wire and should be checked before using.Output Distance Wire Size AMC+30 AMC+60 AMC+120 AMC+250100V Up to 50m AWG26(0.12mm2) AWG26(0.12mm2) AWG24(0.2mm2) AWG22(0.35m

33、m2) 50m200m AWG24(0.2mm2) AWG20(0.5mm2) AWG18(0.75mm2) AWG16(1.5mm2) Over 200m AWG20(0.5mm2) AWG18(0.75mm2) AWG16(1.5mm2) AWG13(2.5mm2)70V Up to 50m AWG26(0.12mm2) AWG24(0.2mm2) AWG22(0.35mm2) AWG18(0.75mm2) 50m200m AWG20(0.5mm2) AWG18(0.75mm2) AWG16(1.5mm2) AWG13(2.5mm2) Over 200m AWG18(0.75mm2) AW

34、G16(1.5mm2) AWG13(2.5mm2) AWG10(6.0mm2)4 ohm Up to 10m AWG18(0.75mm2) AWG18(0.75mm2) AWG18(0.75mm2) AWG18(0.75mm2) 10m30m AWG13(2.5mm2) AWG13(2.5mm2) AWG13(2.5mm2) AWG13(0.35mm2) Over 30m Not Recommended Not Recommended Not Recommended Not RecommendedNote: Only connect one output either Distributed

35、Line or Low Impedance.Line Output The LINE output XLR can be used to connect up to 6 booster amplifiers. Balanced wiring (shielded pair cable) is recommended. Note: When wiring the LINE output as unbalanced, Pin2 should be wired as hot and Pin1 should be wired as ground/shield. Do not wire Pin3.REC

36、Output The REC output wiring should be kept as short as possible.Input Connections For wiring balanced in, pin 2 is hot. Unbalanced wiring on the microphone inputs is not recommended. Balanced input wiring (shielded pair cable) is recommended. Unbalanced RCA wiring should be keep as short as possibl

37、e.PAGE 7AMC+ SERIES INSTALLATION AND OPERATION MANUALTROUBLESHOOTINg AND BLOCk DIAgRAMTroubleshooting guideTroubleLikely CauseRemedy Power LED not onPower not reaching amplifierCheck power switch is onCheck mains connectionCheck mains fuseDistorted soundOutput is short circuitInput is overloadedOutp

38、ut is being over drivenBass control is turned upCheck speaker loads for shortsReduce input level at sourceReduce volume levels on front panelReduce Bass control levelNo sound but amp is onVolume controls downAmplifier has overheated (AMC+60, AMC+120 AMC+250 only)DC fuse(s) blownCheck volume controls

39、Check for obstructions above and below Make sure the amplifier is well ventilatedRefer product to local Australian Monitor dealerNo sound from channels 2 and 3Priority function is being usedRemove signal (disconnect input) from channel 1 OR Disable priority function (see Internal Adjustments)Tones d

40、o not sound when triggeredTone generator module not installedPurchase optional Tone generator modulePAGE 8AMC+ SERIES INSTALLATION AND OPERATION MANUALFUNCTIONAL NOTES AND INTERNAL ADjUSTMENTSPRIORITYChannel 1 will mute channels 2, 3 and 4. This will only occur when signal appears on channel 1, irre

41、spective of the channel volume control. Priority can be disabled. (See below). The release time is approx. 3 secs and is NOT adjustable. The mute depth is approx. 40dB and is not adjustable.PAGE 9AMC+ SERIES INSTALLATION AND OPERATION MANUALDIMENSIONSPAGE 10AMC+ SERIES INSTALLATION AND OPERATION MAN

42、UALSPECIFICATIONS AMC+ 30 AMC+ 60 AMC+ 120 AMC+ 250POWER OUTPUT (0.5%THD, 1kHZ) 30W 60W 120W 250WS/N RATIO 75dBr 75dBr 80dBr 85dBrPOWER BANDWIDTH (-3dB +1dB) 85Hz-15kHz 75Hz-15kHz 75Hz-15kHz 30Hz-20kHzFUSES MAINS (115V) 1.0A 3.15A 4A 6.3A MAINS (230/240V) 0.5A 1.6A 2A 3.15A DC 1.6A (x2) 4A 8A 10A (x

43、2)OUTPUT REgULATION 96% 93% 93% 90%SIZE (WXHXD) 482 x 88 x 190mm 482 x 88 x 281mm 482 x 88 x 281mm 482 x 88 x 384mm 19” x 3.5” x 7.5” 19” x 3.5” x 11.1” 19” x 3.5” x 11.1” 19” x 3.5” 15.1”NET WEIgHT 6.0kg 8.5kg 10.5kg 11.5kg 13.2lb 18.7lb 23.1lb 25.3lbSHIPPINg WEIgHT 7.5kg 10.5kg 12.5kg 14kg 16.5lb

44、23.1lb 27.6lb 30.8lbSHIPPINg DIMENSIONS (WXHXD) 510 x 145 x 297mm 525 x 175 x 385mm 525 x 175 x 385mm 525 x 185 x 470mm 20.1” x 5.7” x 11.7” 20.7” x 6.9” x 15.2” 20.7” x 6.9” x 15.2” 20.7” x 7.3” x 18.5”MAINS CURRENT DRAW (240V) FULL POWER 0.35A 0.66A 1.20A 2.53A 1/3 POWER 0.23A 0.44A 0.80A 1.61A 1/

45、8 POWER 0.17A 0.32A 0.55A 1.10 IDLE 0.08A 0.13A 0.15A 0.15AMAINS CURRENT DRAW (115V) FULL POWER 0.73A 1.38A 2.50A 5.28A 1/3 POWER 0.48A 0.92A 1.67A 3.36A 1/8 POWER 0.35A 0.67A 1.15A 2.30A IDLE 0.17A 0.27A 0.31A 0.31ATHERMAL OUTPUT (W) FULL POWER 38W 67W 128W 259W 1/3 POWER 33W 63W 118W 231W 1/8 POWE

46、R 26W 51W 91W 168W IDLE 11W 19W 26W 26WTHERMAL OUTPUT (BTU/HR) FULL POWER 130 229 437 884 1/3 POWER 113 215 403 788 1/8 POWER 90 172 311 573 IDLE 38 65 89 89*1/3 and 1/8 power levels relate to voltage changes, not load changes. PAGE 11AMC+ SERIES INSTALLATION AND OPERATION MANUALSPECIFICATIONSCOMMON

47、 TO ALL MODELSTHD (1kHz, -1dB) Better than 0.5%MIC INPUT SENSITIVITY 1mV 200ohm IMPEDANCE 1k3 ohm HEADROOM 77mV (37dB)AUX INPUT SENSITIVITY 0.5V+/100kohm IMPEDANCE 200kohm HEADROOM 15V (30dB)TONE CONTROL BASS 100HZ +/- 12 dB TREBLE 10KHZ +/- 9 dBLINE OUT NOMINAL OUTPUT 0.775V 1kohm OUTPUT IMPEDANCE

48、100ohmREC OUT NOMINAL OUTPUT 250mV 10kohm OUTPUT IMPEDANCE 1kohmSYDNEY (NSW & ACT SALES)1 Clyde Street Silverwater NSW 2128 Private Bag 149 Silverwater NSW 1811 Phone: (02) 9647 1411 Fax: (02) 9648 3698 Email: .auMELBOURNE (VIC & TAS SALES)22/277 Middleborough Road Box Hill VIC 3128 PO Box 151 Black

49、burn South VIC 3130 Phone: (03) 9890 7477 Fax: (03) 9890 7977 Email: .auBRISBANE (QLD SALES)42 Commercial Road Fortitude Valley QLD 4006 PO Box 2578 Fortitude Valley BC QLD 4006 Phone: (07) 3852 1312 Fax: (07) 3252 1237 Email: .auADELAIDE (SA & NT SALES)31 Walsh Street Thebarton SA 5031 PO Box 157 H

50、indmarsh SA 5007 Phone: (08) 8352 4444 Fax: (08) 8352 4488 Email: .auPERTH (WA SALES)3/11 Howe Street Osborne Park WA 6017 PO Box 1281 Osborne Park BC WA 6916 Phone: (08) 9204 0200 Fax: (08) 9244 3783 Email: .auAUCKLAND (NZ SALES)9C Piermark Drive Albany 0752 New Zealand PO Box 300-512 Albany 0752 P