AUSTRALIAN MONITOR PA Series Operation Manual Download Page 19 | Manualshive

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Summary of Contents for PA Series

Page 1: ...Australian Monitor f 4aoo fi4rzoo _ Operation Manual ...

Page 2: ...lateral triangle is intended to alert the user that there is important operating and maintenance literature that accompa nies the unit The unit should not be operated in a situation where it mayencounterthe entry ofwater rain oranyfl uids To expose the unit to the above conditions may make the operation of the unit hazardous and increase the risk of electrical shock IWARNING DO NOT EXPOSE TO EITHE...

Page 3: ...idge Mode 6 Two Ohm or Not Two Ohm 7 Maintenance 8 Warranty 9 Specification List of Illustrations Figure 1 Block Diagram Figure 2 Front Panel Layout Figure 3 Rear Panel Layout Figure 4 Case Dimensions Figure 5 Speakon Connector Wiring Figure 6 Bridge Mode Speaker Wiring Page 5 6 7 I 11 13 15 16 17 18 19 Page 5 6 8 10 12 15 ...

Page 4: ...es Rear rack mount ears Stereo or bridged mono operation plug in signal modifiers optional lnput signalstrapping loop through connectors signal ground lifi switch 21 Position detented attenuators Highquality close tolerance components Balanced inputs and buffered attenuators throughout Protection Features Suppression of inrush current at mains tum on High overload mains fuse lnput muting at tum on...

Page 5: ...er comprises a balanced active input with a buffered attenuator driving a differential class A drive stage which in turn drivel a fan cooled class AB MbSFET output stage configured as a source follower The unit operates from a high cunent capable linear power supply These units have been specifically designed to de_ liver their high power output with minima idistortion and provide the critical deg...

Page 6: ...6 Controls Connectors 2 Controls Connectors Indicators o z I rg q I I U r l gI c I ol El CI o c F L t I t o f Figure 2 Front Panel Layout ltu ...

Page 7: ...rs may be To maximise the life of your speakers try to keep clipping infrequent 3 Fault Indicator This amber LED will flash when a fault condition exists The fault detection circuit monitors the difference between drive and output in your amplifier lf you have a short on the speaker output or a blown negative rail fuse the LED will flash brightly in sync with the programme This LED will also flash...

Page 8: ...Controls 81 Connectors Figure 3 Rear Panel Layout ftfL ftffi C l C_ f C I F a2 8 9 0d3 i c r qo J N rO j R r ld 6 t t ll l a I q o c c_ _ l l L l c f _lc_ ltu ...

Page 9: ... P4tzm require a minimum mains lead rating of 1 0 amps when operate dfrom a22O to 24O volt mains supply NOTE Your unit must always be earthedt 10 Mains Fuse A 20mm x Smm fuse drawer is provided within the housing of the IEC mains connector When you recieve your amplifier it will have a working fuse and a spare fuse inside the fuse drawer The drawer can only be opened once the mains lead is removed...

Page 10: ...I0 Installation tfiltfl OOUU c l o Ki c o c c J t i I t nF r i I l I oG I t l l r F r 3 l Figure 4 Dimensions I o rO o o t 3 q o t lt I q o ro c o lf ltu ...

Page 11: ... 1 o o andrequiresallthreepinstobeconnected Onlyhigh quality twin core shielded cable should be used heat to build up within the unit and possibly force the unit into its thermal shutdown mode lf the units are to be operated in an environment wherethe airflow is restricted such as sealed racks or even when running 2 ohm loads the cooling should be supplemented by extra cooling fans to evacuate the...

Page 12: ...s designed so that both channels can be fed from a single connector Two SPEAKON connectors are provided on the amplifier The Channel A SPEAKON actually carries both channelA channel B outputs se e Figure 5 Speakon Connector Wiring Diagrams The Channel B SPEAKON canies the Channel B output only This anangement allows you the option of connect ing to the outputs separately ortogether Connecting thro...

Page 13: ...rltzu your ampl ifi er goes through an establishment period before it will accept signal The lnrush Cunent Supression lCS circuit is in operation for the first 0 5 seconds This l imits the mains cunent to prevent nuisance tripping of circuit breakers During this period the THERMAUON LED willflash red whilstthe mains voltage gradually charges up the power supply You will then hear a relay clicK ind...

Page 14: ...rth wiring has a cunentflowing in il The cunent flowing through the wire produces a voltage drop due to the wire s resistance This voltage difference between the amp earth and source equip ment earth appears to the amplifief s input as a signal and is amplified as hum There are three things you can do to avoid earth loop problems 1 Ensure your mains powerforthe audio system is quiet i e without eq...

Page 15: ... 6 there are three steps in setting up y our Piau Pirzu am p I if i er for ru nn i n g it i n B R I D GE mode Whilst the amptifier is ofi 1 Connect the signal source to the Channel Afemale input XLR The Channel A attenuator becomes the level controlfor both channels 2 Engage the push to bridge switch 3 Connect your load between the red binding post output terminals where the positive side of the l...

Page 16: ... exanrsion into a resistive load for a sine wave at a given frequency Though this method is in line with the various standards that exist it only gives an indication to the maximum voltage s wing before clipping for a given load Th is method of rating power does not give an indication of the current Ampere capability of the amplifier nor does it show the amplifier s ability to sustain high energy ...

Page 17: ... blades are accessible once the lids are removed and can be easily cleaned You need only holdthefan rotorstillandwipethe dust off the blades Many uses stall the fan and use compressed air to blowthe dust off the fan blades lt is important to note thatthefan blades must be held stillwhilstblowing air over the blades othenrrise you may burn out the bearings in the fan Fuses Alongwith rearpanel mains...

Page 18: ...e the orner fails to take reasonable care in use and maintenance of the ampli fier To validatethiswananty the original purchasermust complete and mailthe warranty registration card di rectly to Australian Monitor within fourteen days of purchase To obtain warranty service the equipment should be shi pped to an authorised Australian Monitor dealer or to Australian Monitor at the owner s expense U n...

Page 19: ...m 1 26 Vrms 4 dBu For rated power re 4 ohm 1 10 Vrms 3 dBu 19 inch EIA rack mounting 2 units high Distortion 0 5 dB betow ctipping re 4 ohms THD N 1 kHz O O1 IMD SMPTE 60 Hz 7 kHz41 0 05 IMD DIM 30 3 15kH2 sguare 15 kHz O O2o o Frequencv Response Model PIAOO Output Power E l A 1 kHz 0 1 THD N Sohm 4ohm Single channel driven 285W 460W Both channels driven 255W 400W Pulsed 1 kHz at onset of clipping...

Page 20: ...m Sydney Ph 02 9647 1411 Fax 02 9648 3698 E mait nsw audiotetex com Melbourne Ph 03 98907477 Fax 03 9890 2927 E mait vic audiotetex com Brisbane Ph 07 38521312 Fax 07 32521237 E mail qtd audiotetex com Perth Ph 08 9228 4222 Fax 08 9228 4239 E mait audioflx muttitine com au Auckland Ph 09 4159426 Fax 09 415 9854 E mait audioflx nznet gen nz e at ffi ku bIII s I ls 4 Sr4 rar 1 tr 1lY IT v wk 2d res ...

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