AustralianMonitor-AMCplus250-pwr-sm维修电路图 手册.pdf

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 AMC+ SERIES 30W/60W/120W/250W MIXER AMPLIFIERS INSTALLATION AND OPERATION MANUAL RadioFans.CN 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 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 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 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 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 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. Australian 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 unused 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 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 MANUAL IMPORTANT SAFETY INFORMATION RadioFans.CN PAGE 3AMC+ SERIES INSTALLATION AND OPERATION MANUAL The 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 our 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 (defeatable), 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 reliability. AUS, EUR, USA Copyright 1st Apr 2005 Rev A: 1st Apr 2005 Rev B: 6th Jun 2006 Rev C: 26th May 2008 This 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 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: CAUTION CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK), NO USER SERVICEABLE PARTS INSIDE, REFER SERVICING TO QUALIFIED SERVICE 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 OPEN INTRODUCTION AND CONTENTS INTRODUCTION 3 FRONT PANEL 4 REAR PANEL 5 INSTALLATION 6 TROUBLESHOOTING AND BLOCK DIAGRAM 7 FUNCTIONAL NOTES AND INTERNAL ADJUSTMENTS 8 DIMENSIONS 9 SPECIFICATIONS 10 11 RadioFans.CN PAGE 4AMC+ SERIES INSTALLATION AND OPERATION MANUAL FRONT PANEL 1 CH 14 These control the levels for each channel input. 2 Bass There is 12dB of cut and boost at 100Hz. 3 Treble There is 9dB of cut and boost at 10kHz. 4 Master This controls the overall mixed output level. 5 On This LED indicates the unit is powered “on”. 6 Power This switch switches power on or off the mains. The up position is on. 562341 RadioFans.CN PAGE 5AMC+ SERIES INSTALLATION AND OPERATION MANUAL REAR PANEL 12346 1 CH 14 Each channel input section has two inputs: XLR input This is a balanced microphone input. It 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 Output The REC output is on unbalanced RCA connectors. The output level is 150mV into 10kohm at rated output. The output is 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 Output The LINE output is on a balanced XLR connector. The output level is 0.775V into 1k at 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 Out The 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/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 machine screws with flat and spring washers. 5 IEC Mains Input Socket This 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 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 Power 12V phantom power is available for condenser or electret microphones on the XLR input when this switch is pushed in. Minimum Impedance AMC+30 AMC+60 AMC+120 AMC+250 Distributed Line Output 70V (115V version) 166ohm 83ohm 41ohm 20ohm 100V (230/240V version) 333ohm 166ohm 83ohm 40ohm Low Impedance Output (both versions) 4ohm 4ohm 4ohm 4ohm The ratings are: AMC+30 AMC+60 AMC+120 AMC+250 230V/240V model 0.5A 1.6A 2A 2.15A 115V model 1A 3.15A 4A 6.3A 57 RadioFans.CN PAGE 6AMC+ SERIES INSTALLATION AND OPERATION MANUAL INSTALLATION Mounting When rack mounting, it is advisable to allow 1 rack space above and below the amplifier. When multiple amplifiers 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) 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+30 AMC+60 AMC+120 AMC+250 100V Up to 50m AWG26(0.12mm2) AWG26(0.12mm2) AWG24(0.2mm2) AWG22(0.35mm2) 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) AWG16(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 Recommended Note: Only connect one output either Distributed 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 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 possible. RadioFans.CN PAGE 7AMC+ SERIES INSTALLATION AND OPERATION MANUAL TROUBLESHOOTINg AND BLOCk DIAgRAM Troubleshooting guide TroubleLikely CauseRemedy Power LED not onPower not reaching amplifierCheck power switch is on Check mains connection Check mains fuse Distorted soundOutput is short circuit Input is overloaded Output is being over driven Bass control is turned up Check speaker loads for shorts Reduce input level at source Reduce volume levels on front panel Reduce Bass control level No sound but amp is on Volume controls down Amplifier has overheated (AMC+60, AMC+120 AMC+250 only) DC fuse(s) blown Check volume controls Check for obstructions above and below Make sure the amplifier is well ventilated Refer product to local Australian Monitor dealer No sound from channels 2 and 3Priority function is being used Remove signal (disconnect input) from channel 1 OR Disable priority function (see Internal Adjustments) Tones do not sound when triggeredTone generator module not installedPurchase optional Tone generator module RadioFans.CN PAGE 8AMC+ SERIES INSTALLATION AND OPERATION MANUAL FUNCTIONAL NOTES AND INTERNAL ADjUSTMENTS PRIORITY Channel 1 will mute channels 2, 3 and 4. This will only occur when signal appears on channel 1, irrespective 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. RadioFans.CN PAGE 9AMC+ SERIES INSTALLATION AND OPERATION MANUAL DIMENSIONS RadioFans.CN PAGE 10AMC+ SERIES INSTALLATION AND OPERATION MANUAL SPECIFICATIONS AMC+ 30 AMC+ 60 AMC+ 120 AMC+ 250 POWER OUTPUT (0.5%THD, 1kHZ) 30W 60W 120W 250W S/N RATIO 75dBr 75dBr 80dBr 85dBr POWER BANDWIDTH (-3dB +1dB) 85Hz-15kHz 75Hz-15kHz 75Hz-15kHz 30Hz-20kHz FUSES 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 (x2) 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 25.3lb SHIPPINg WEIgHT 7.5kg 10.5kg 12.5kg 14kg 16.5lb 23.1lb 27.6lb 30.8lb SHIPPINg 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 1/8 POWER 0.17A 0.32A 0.55A 1.10 IDLE 0.08A 0.13A 0.15A 0.15A MAINS 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 0.31A THERMAL OUTPUT (W) FULL POWER 38W 67W 128W 259W 1/3 POWER 33W 63W 118W 231W 1/8 POWER 26W 51W 91W 168W IDLE 11W 19W 26W 26W THERMAL 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. RadioFans.CN PAGE 11AMC+ SERIES INSTALLATION AND OPERATION MANUAL SPECIFICATIONS COMMON TO ALL MODELS THD (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 dB LINE OUT NOMINAL OUTPUT 0.775V 1kohm OUTPUT IMPEDANCE 100ohm REC OUT NOMINAL OUTPUT 250mV 10kohm OUTPUT IMPEDANCE 1kohm RadioFans.CN SYDNEY (NSW & ACT SALES) 1 Clyde Street Silverwater NSW 2128 Private Bag 149 Silverwater NSW 1811 Phone: (02) 9647 1411 Fax: (02) 9648 3698 Email: .au MELBOURNE (VIC & TAS SALES) 22/277 Middleborough Road Box Hill VIC 3128 PO Box 151 Blackburn South VIC 3130 Phone: (03) 9890 7477 Fax: (03) 9890 7977 Email: .au BRISBANE (QLD SALES) 42 Commercial Road Fortitude Valley QLD 4006 PO Box 257