AustralianMonitor-AMCplus120P-pwr-sm维修电路原理图.pdf

Australian Monitor 1 Clyde Street, Silverwater NSW 2128 Australia +61 2 9647 1411 .au SERVICE INFORMATION AMC+120P POWER AMPLIFIER CONTENTS: OPERATION MANUAL SCHEMATIC DIAGRAM COMPONENT OVERLAY TEST PROCEDURE REPLACEMENT PARTS LIST SERVICE BULLETIN RadioFans.CN 收音机爱 好者资料库AMC+ SERIES120W / 250W POWER 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 equipment. 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 the 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, and 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 printed 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 amplifi ers 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 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 environment which may impede the normal fl ow 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 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 amplifi ers or consoles to any other voltage source, such as a battery, mains source, or power supply, regardless of whether the amplifi er or console is turned on or off.17. Do not run the output of any amplifi er channel back into another channels input. Do not parallel- or series-connect an amplifi er output with any other amplifi er output. Australian Monitor 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 unused for a long period of time.20. Service Information Equipment should be serviced by qualifi ed 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 equipment 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+ SERIES INSTALLATION AND OPERATION MANUALThe Australian Monitor Installation Series AMC+ range of booster amplifi ers take the rugged reliability of the famous AMIS range and deliver the same high quality audio reinforcement, in a low cost, 2 rack unit package. The AMC+ booster amplifi ers are available in 120 & 250 watts & offer 100 volt or 4 ohm outputs. The AMC+ series booster amplifi ers give the audio contractor a reliable, low cost booster amplifi er for applications that are price sensitive but still require high quality commercial sound reinforcement. AUS, EUR, USARev A: 10th Nov 2008This symbol is intended to alert the user to the presence of uninsulated “dangerous voltage” within the products enclosure that may be of suffi cient magnitude to constitute a risk of electric 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 unless 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 SERVICE PERSONNEL.WARNING!TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCKDO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.RISK OF ELECTRIC SHOCKDO NOT OPENINTRODUCTION AND CONTENTSINTRODUCTION 3FRONT PANEL 4REAR PANEL 5INSTALLATION 6TROUBLESHOOTING AND BLOCK DIAGRAM 7DIMENSIONS 8SPECIFICATIONS 9NOTES 10PAGE 4AMC+ SERIES INSTALLATION AND OPERATION MANUALFRONT PANEL1 OnThis LED indicates the unit is powered “on”.2 PowerThis switch switches power on or off the mains. The up position is on.3 VentsAir intake for fan cooling on AMC+250P only.6123312PAGE 5AMC+ SERIES INSTALLATION AND OPERATION MANUALREAR PANEL1321 InputThese 3 pin XLR sockets accept the source input for each channel. One input is a male XLR, the other is a female XLR. The male XLR is normally used as a thru output. When wiring from unbalanced sources, pins 1 and 3 should be shorted together (see Installation section). The input sensitivity (voltage required to drive amplifi er to maximum power) of the amplifi er is 150mV (-14dBu) with the Input Level Control set at maximum.2 LevelThis pot controls the level of the signal through the amplifi er channel. Minimum position is Off and maximum gives a sensitivity of 150mV (-14dBu). The maximum input voltage before the input stage clips is 2.45V (+10.0dBu). Depending on the input source, the input level control should be run above the 12 oclock position (half way) to avoid clipping the input stage.3 Direct OutThe speaker connections are on the 12 pole terminal strip. There is a low impedance output (OHM) and a distributed line voltage output (LINE). 70V out is available on 115V models. 100V out is available on 230V models.There are 6 unused terminals. These do not connect to anything.4Note: 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 fi tted with a touch-proof cover held in place by two M3 machine screws with fl at and spring washers.4 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 the fuse with one of the same value and type. Note: Always disconnect power to the amplifi er before replacing fuses.3 Direct Out continuedMinimum Impedance AMC+120P AMC+250PDistributed Line Output 70V (115V version) 41ohm 20ohm 100V (230V version) 83ohm 40ohmLow Impedance Output (both versions) 4ohm 4ohm The ratings are: AMC+120P AMC+250P230V model 2A 2.15A115V model 4A 6.3APAGE 6AMC+ SERIES INSTALLATION AND OPERATION MANUALINSTALLATIONMountingWhen rack mounting, it is advisable to allow 1 rack space above and below the amplifi er. When multiple amplifi ers are mounted in a rack, exhaust fans should be used on the rack. Airfl ow for cooling the AMC+120P is by convection from bottom to top. Airfl ow for cooling the AMC+250P is by fan from front to side.Direct OutputThe output terminal strip accepts wire sizes from 16-22AWG (1.5mm2 0.35mm2) or 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+120P AMC+250P100V Up to 50m AWG24(0.2mm2) AWG22(0.35mm2) 50m200m AWG18(0.75mm2) AWG16(1.5mm2) Over 200m AWG16(1.5mm2) AWG13(2.5mm2)70V Up to 50m AWG22(0.35mm2) AWG18(0.75mm2) 50m200m AWG16(1.5mm2) AWG13(2.5mm2) Over 200m AWG13(2.5mm2) AWG10(6.0mm2)4 ohm Up to 10m AWG18(0.75mm2) AWG18(0.75mm2) 10m30m AWG13(2.5mm2) AWG13(2.5mm2) Over 30m Not Recommended Not RecommendedNote: Only connect one output either Distributed Line or Low Impedance.Input ConnectionsFor wiring balanced in, pin 2 is hot. Balanced input wiring (shielded pair cable) is recommended. When wiring unbalanced in. pin2 is hot and pin 1 and pin 3 should be shorted together to the shield.PAGE 7AMC+ SERIES INSTALLATION AND OPERATION MANUALTROUBLESHOOTING AND BLOCK DIAGRAMTroubleshooting GuideTroubleLikely CauseRemedy Power LED not onPower not reaching amplifi erCheck power switch is onCheck mains connectionCheck mains fuseDistorted soundOutput is short circuitedInput is overloadedOutput is being over drivenCheck speaker loads for shortsReduce input level at sourceReduce volume levelsNo sound but amp is onVolume controls downAmplifi er has overheatedDC fuse(s) blownCheck volume controlsCheck for obstructions above and belowMake sure the amplifi er is well ventilatedRefer product to local Australian Monitor dealerPAGE 8AMC+ SERIES INSTALLATION AND OPERATION MANUALDIMENSIONSDimensions the same for both theAMC+120P andthe AMC+250PPAGE 9AMC+ SERIES INSTALLATION AND OPERATION MANUALSPECIFICATIONS AMC+ 120P AMC+ 250PPOWER OUTPUT (0.5%THD, 1KHZ) 120W 250WS/N RATIO 88dB 88dBFREQ RESPONSE (-3dB +1dB) 50Hz-20kHz 40Hz-20kHzTHD (1KHz, -1dB) Better than 0.5% Better than 0.5%INPUT SENSITIVITY 150mV 150mV(pot full) IMPEDANCE 20k 20k HEADROOM 10dB 10dBFUSES MAINS (115V) 4A 6.3A MAINS (230V) 2A 3.15A DC 8A 10A (x2)SIZE (WXHXD) 482 x 88 x 281mm 482 x 88 x 384mm 19” x 3.5” x 11.1” 19” x 3.5” 15.1”NET WEIGHT 10.5kg 11.5kg 23.1lb 25.3lbSHIPPING WEIGHT 12.5kg 14kg 27.6lb 30.8lbSHIPPING DIMENSIONS (WXHXD) 525 x 175 x 385mm 525 x 185 x 470mm 20.7” x 6.9” x 15.2” 20.7” x 7.3” x 18.5”MAINS CURRENT DRAW (230V) FULL POWER 1.20A 2.53A 1/3 POWER 0.80A 1.61A 1/8 POWER 0.55A 1.10 IDLE 0.15A 0.15AMAINS CURRENT DRAW (115V) FULL POWER 2.50A 5.28A 1/3 POWER 1.67A 3.36A 1/8 POWER 1.15A 2.30A IDLE 0.31A 0.31ATHERMAL OUTPUT (W) FULL POWER 128W 259W 1/3 POWER 118W 231W 1/8 POWER 91W 168W IDLE 26W 26WTHERMAL OUTPUT (BTU/HR) FULL POWER 437 884 1/3 POWER 403 788 1/8 POWER 311 573 IDLE 89 8*1/3 and 1/8 power levels relate to voltage changes, not load changes. SYDNEY(NSW SALES)1 Clyde StreetSilverwaterNSW 2128Private Bag 149Silverwater NSW 1811Phone: (02) 9647 1411Fax: (02) 9648 3698Email:.auCANBERRA(ACT SALES)1st Floor, Campion StreetDeakin ACT 2600PO Box 109Deakin West ACT 2600Phone: (02) 6260 4544Fax: (02) 6260 4744Email: .auMELBOURNE(VIC & TAS SALES)22/277Middleborough RoadBox Hill VIC 3128PO Box 151 BlackburnSouth VIC 3130Phone: (03) 9890 7477Fax: (03) 9890 7977Email:.auBRISBANE(QLD SALES)42 Commercial RoadFortitude ValleyQLD 4006PO Box 2578 FortitudeValley BC QLD 4006Phone: (07) 3852 1312Fax: (07) 3252 1237Email:.auADELAIDE(SA & NT SALES)31 Walsh StreetThebartonSA 5031PO Box 157Hindmarsh SA 5007Phone: (08) 8352 4444Fax: (08) 8352 4488Email:.auPERTH(WA SALES)3/11 Howe StreetOsborne Park WA 6017PO Box 1281Osborne Park BCWA 6916Phone: (08) 9204 0200Fax: (08) 9244 3783Email:.auAUCKLAND(NZ SALES)9C Piermark Drive Albany 0752New ZealandPO Box 300-512Albany 0752Phone: (09) 415 9426Fax: (09) 415 9864Email:salesaudiotelex.co.nzAUSTRALIA AND NEW ZEALAND.auEUROPE / ASIA / MIDDLE EAST.auINTERNATIONAL SALES1 Clyde Street Silverwater NSW 2128 AustraliaPrivate Bag 149 Silverwater NSW 1811Phone: + 61 2 9647 1411Fax: + 61 2 9748 2537Email: .au1122334455667788DDCCBBAA11DESCRIPTION:DRAWN BY:DRAWING No:DATE:REVISION NOTE:SHEETofAUSTRALIAN MONITORDATEDRNREVFEDCBAAMC 60/120 AmpAMC60_120Amp2009-5-5TF2Driver TXFR 1:1T15BC546B10kR421kR431kPR1680E/2WR41220RR25470RR320.39R/5WR34*R38T8TIP41CT10TIP35CT14*VcVcVcO/P TXFR1470RR19100RR2010kR1647kR151kR122k2R9100RR10330kR522kR61k5R2220nC24.7u/25C4T4BD139T2C181510kR45220RR24470RR310.39R/5WR33*R37T7TIP41CT9TIP35CT13*VcVcVc470RR18100RR1710kR1347kR141kR112k2R8100RR7330kR422kR31k5R1220nC14.7u/25C3T3BD139T1C181510kR4424VBIASBIAS24VDriven by balanced signal1kR211kR22BIAS0RR230RR26D21N4007D11N4007T5BC639T6BC639*R2856RR27*R2956RR30C5*C62200u/63VF18 A(150R/5W) X 2R39230VPRIM1(39.5V)F2HRC 120W-2A/60W-1.6AD36A04D4*D56A04D6*VCMains 230/240 V0.39R/5WR36T12TIP35CVc0.39R/5WR35T11TIP35CVcPRIM2(39.5V)T16BD139R402k2C1347u/50C1447u/50D724VCom4OhmCom100V123456CN1CON6VCCTH1THERMISTOR 10KC171nC161nC8N/CC7N/C24VC9N/CC10N/CIncreased gain, removed 230/240V switch, removed zobelCKW22/05/08 Model Variations * AMC+60 / AMC+120 D4, D6 AMC60 - N/C AMC120 - 6A04 T13, T14 AMC60 - N/C AMC120 - TIP35C R37, R38 AMC60 - N/C AMC120 - 0.39R/5W C5 AMC60 - N/C AMC120 - 2200uF/63V R28, R29 AMC60 - 150R AMC120 - 56R 112233445566DDCCBBAATitleNumberRevisionSizeBDate:4/29/2012Sheet of File:.AMC+120.SCHDrawn By:TF2Driver TXFR 1:1T15BC546B10kR421kR431kPR1680E/2WR41220RR25470RR320.39R/5WR340.39R/5WR38T8TIP41CT10TIP35CT14TIP35CVcVcVcO/P TXFR1470RR19100RR2010kR1647kR151kR122k2R9100RR10330kR522kR61k5R2220nC24.7u/25C4T4BD139T2C181510kR45220RR24470RR310.39R/5WR330.39R/5WR37T7TIP41CT9TIP35CT13TIP35CVcVcVc470RR18100RR1710kR1347kR141kR112k2R8100RR7330kR422kR31k5R1220nC14.7u/25C3T3BD139T1C181510kR4424VBIASBIAS24VDriven by balanced signal1kR211kR22BIAS0RR230RR26D21N4007D11N4007T5BC639T6BC63956RR2856RR2756RR2956RR30C52200u/63VC62200u/63VF1(150R/5W) X 2R39115VPRIM1(39.5V)F2D36A04D46A04D56A04D66A04VCMains 230/115V0.39R/5WR36T12TIP35CVc0.39R/5WR35T11TIP35CVcPRIM2(39.5V)T16BD139R402k2C1347u/50C1447u/50D724VCom4OhmCom100V123456CN1CON6VCCTH1THERMISTOR 10KC171nC161nC8N/CC7N/C24VC9N/CC10N/C70VT8AS1SW DPDT115V115V230VT2125 C230VAC T2A 115V T4AGND+24VTH+GNDIN-IN+AMC+120 AMPTH1CN4CN5C6C5R36R39R25J2J17R2J18C13C14D7T16R40D3D4D5J3J4J6R26T8PR1T1R29R30J10R37R33R35R38T13T9T11T10T14T12R15R17R20R13R11R8R4R3R44R10R45C4C3R12F1T3T4T1T2T5T6T15D1D2R27R24J5J11R21R31R23J1R32R22J12J13J8J9J7R42R43R1C2C1T7D6R6C15R19R18R28R14R5R9R16R7CN1RR34C8C7C17C16CN2CN3C9C10R41TEST PROCEDURE XXXX-1 MODEL: AMC+120P Rev A 22/09/08 Original Outline 1. Physical checks 2. Set up amplifier for test 2.1. Fuse check 2.2. Connections 2.3. Reset controls 3. Power up 3.1. Voltages 3.2. Bias setup 4. Initial AC Checks 4.1. Signal check and gain of amp 4.2. Emitter current check 4.4. Outpu