Operating Instructions
Contents
1. CH1 and CH2 volume control knobs on the front panel anti clockwise to decrease the level so as to avoid damaging the speakers 10 PRE OUT This jack is for connecting line level output signal to external amplifier or a signal processor such as an equalizer 11 AMP IN This input is for a direct signal from external equipment 4dB level It is controlled by the MASTER volume knob on the front panel 12 REMOTE CHIME terminal When these terminals are shorted the chime is activated 13 REMOTE SIREN terminal When these terminals are shorted the chime is activated 14 TEL IN These terminals are for connection to a telephone system for paging Use an Austel approved line isolation unit with this input Note When paging all other input signals except AMP IN are muted 15 HIGH IMPEDANCE SWITCH This switch is for selecting the impedance of the high impedance speaker terminals 70V or 100V JDM 4 Zone Public Address Amplifier FOR 8X OTERMINAL BALANCED OUTPUT HIGH IMPEDANCE MEN 20 70V 100V 420 VE Terminal 100V 29 Common Terminal SPEAKER FOR HIGH IMPEDANCE TERMINAL BALANCED OUTPU HIGH IMPEDANCE L1 nv E RET SPK ZONES OUTPUT amun d 1 HIGH Lond ad 2 2h COLD gt Common terminals be used for speakers to bypass the speaker zone switching Be sure that total impedance is not less than rated impedance This incl2. MIC 24VDC BATTERY PC X SPEAKERS BALANCED lt INPUT SOURCE 4 2 4 4 SPEAKERS AUX INPUT SOURCE EG CD PLAYER SPEAKERS Fig 4 Connection Guide JDM 4 Zone Public Address Amplifier CHIME S W o0 0 CHIME TEL IN SIREN SW E 0 SIREN EN On PN 48V m 4dBm NOR GAIN 2 50dB 10dB A A Bass Treble 3 al gt po CH 3 CH 5 E 2 8 PHANTOM Fig 5 Block circuit diagram SPECIFICATIONS 4324 DOW Ge c setetonte sdictantixr dbieme put nated eres odeedet 240 watts RMS DISTONION E C lt 196 1kHz Signal to noise ratio Line gt 70dB Mic gt 60dB Frequency response 80Hz 15kHz Mic input sensitivity 3mV balanced Line inputs sensitivity dicendus 300mV Phono input 2 gp 2 4mV Telephone input c 245mV ELI HMM 10dB 100Hz ljo qee 10dB 10kHz Standby current DC operation 0 51A gi T H T4AL 4A M205 4 x 20mm type Power Supply 240V AC or 24V DC Dimensions RM z483W 3500 x 133H mm 4324 weight er 18 7kg 15V 15 PRE OUT p 21 16 13 10 7 5 2 0 POWER 20V 220V 230V 240VAC 50
3. must accompany the goods to effect the repair d Altronics will pay the return freight to the customer where the warranty claim has been accepted e Please quote the R A number in any correspondence to us 2 FOR OVER THE COUNTER PURCHASES to make a warranty claim please return the goods to us in any of our stores with a copy of your proof of purchase tax invoice a Upon leaving the goods at one of our stores an R A number will be issued to you b Once repaired you will be contacted advising that the goods are ready to be collected from the store It is at Altronics discretion as to whether the goods will be repaired or replaced whilst under warranty and as to whether identical goods will be used to replace the item due to changes of models products Note Under no circumstances should you attempt to repair the device yourself or via a non authorised Altronics service centre as this will invalidate the warranty Our goods come with guarantees that cannot be excluded under the Australian Consumer Law You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure NOT FIELD SERVICEABLE Distributed by Altronic Distributors Pty Ltd Phone 1300 780 999 Fax 1300 790 999 www altronics com au
4. 60Hz option PX DC POWER OO T20AL 32V JDM 4 Zone Public Address Amplifier Altronic Distributors warrants this product for two years from the date of purchase from Altronics or its resellers to the consumer If this item is part of an installation or another product please contact the installer or supplier for your warranty During the warranty period we undertake to repair or replace your product at no charge if found to be defective due to a manufacturing fault The warranty excludes damage by misuse or incorrect installation i e failure to install and operate device according to specifications in the supplied instruction manual neglect shipping accident or no fault found nor by use in a way or manner not intended by the supplier For repair or service please contact your PLACE OF PURCHASE If this item was purchased directly from Altronics please make a warranty claim by 1 FOR MAIL ORDER CUSTOMERS includes school and trade orders a Ringing us on 1300 797 007 and quoting your tax invoice number b Upon contacting Altronics we will issue an Return Authorisation As Altronics have a number of service agents throughout Australia a copy of the R A will be emailed faxed or mailed to you with full instructions of how and where to send the goods The freight for shipping goods back to Altronics for all repairs is at the customers expense Acopy of the R A form or at the very minimum the R A number
5. CD player also called PACK but only when either is installed in the front slot of the amplifier JDM 4 Zone Public Address Amplifier Fig 2 Rear Panel Layout HIGH IMPEDANCE 200 70 100V 420 DIRECT MESSAGE OUTPUT E M MODEL 1240 MIXING AMPLIFIER md __JD MEDIA CO LTD MADE IN KOREA DC POWER 24V 20A WITH SAME TYPE FUSE FUSE RATING T4AL 250V REMOTES TELIN SIREN CHIME REAR PANEL CONTROLS 1 AC POWER INPUT 2 FUSE HOLDER This fuse holder contains the power fuse T 4AL 250V Ensure it is replaced with same type of fuse when it blows If it continually blows there may be an amplifier fault Please contact a qualified service technician 3 DC POWER 24V 20A This terminal is for connecting the 24V battery for emergency operations WARNING Ensure the correct battery polarity to prevent damage to the amplifier 4 SPEAKER ZONES Refer to the speaker connection terminals figures 3a and 3b WARNING Do not connect speakers to more than one terminal type That is connect only to the four ohm or only to the eight ohm or only to the high impedance terminals Do not connect speakers to the four ohm or eight ohm terminals where the power rat
6. CHIME AND SIREN This is operated by buttons on the front panel which play various tones across the speakers When the spring terminal on the rear panel is shorted CHIME is activated FOUR ZONES SPEAKER SELECTOR Any combination of mono speakers 4 or 8ohm can be selected via front panel selector switches PRE OUT A preamp output socket is provided enabling connection to extra slave amplifiers or a signal processor 24V EMERGENCY OPERATION The unit will operate from 24V batteries for use in emergency applications Screw terminals provided on the rear AMP SECTION Automatic variable speed fan Over current protection Load short circuit protection Built in low pass filter circuit Output level LED VU meter SAFETY INSTRUCTIONS Please read these instructions before use DO NOT switch on the mains power until installation is complete Locate the device away from any heat source such as radia tors heating vents or in direct sunlight etc DO NOT install in a confined space such as a cupboard or book case Ensure adequate ventilation of the unit DO NOT expose to any form of liquid DO NOT drop any foreign object or liquid inside the amplifier This device should be serviced by a qualified service person IN THE BOX JD Media PA Mixer Console Power Cord e Rack Mounting Screws and Washers Operation Manual OPTIONAL ACCESSORIES A4346 CD Player AM FM Radio Tuner module CDR 100R
7. DSU with FM RDS USB A344A AM FM Radio Tuner module TP 100RDS with FM RDS Note The two modules listed above fit into the slot on the PA mixer front panel Each module includes the antenna terminal which fits into the PA amplifier rear panel C 0377 PUSH TO TALK Paging Mic which connects using only a 3 Pin XLR Jack Note These are the accessories which are supported for this product in Australia and which have descriptions within this manual as well as having their own manuals INSTALLATION MOUNTING These amplifiers are designed to fit into standard 19 racking space and include the left and right mounting brackets in the box COOLING When installing in a rack frame never block the air vents on the side and make sure there is enough space 44mm on either side of the amplifier to allow air flow Check the temperature in side the rack system to ensure it is not above 40 degrees Cel sius A cooling fan on the rear rack panel is recommended JDM 4 Zone Public Address Amplifier O TA 1240 Mixing Amplifier 23i www jd media co kr o o o EQUALIZER Je eee MASTER Fig 1 Front Panel Controls FRONT PANEL CONTROLS 1 POWER Push switch to turn on Power LED will illumina
8. JDM 4 Zone Public Address Amplifier Professional Four Zone Desktop Mixing Amplifiers 4324 240W gt Sop TA 1240 Mixing Amplifier Operating Instructions Distributed by Altronic Distributors Pty Ltd Perth Western Australia Phone 1300 780 999 Fax 1300 790 999 Internet www altronics com au Revision 02 10 12 1 JDM 4 Zone Public Address Amplifier Congratulations on purchasing this 4 Zone amplifier It is housed in a heavy duty 3RU rack mount cabinet and includes a host of features It provides an economical solution for smaller installations including offices workshops smaller shopping arcades schools etc FEATURES VERSATILE INPUTS Channels 1 5 are combination XLR 6 35mm balanced jack sockets located on the rear panel The XLR are microphone level and the 6 35mm are line level tip ring sleeve inputs TELEPHONE INPUT A telephone paging and music on hold input connection is provided via spring terminals on the rear panel Music sources can be from a choice of optional modules that are installed into the front panel slot SLOT FOR OPTIONAL INPUT MODULES A slot in the front panel is provided in order to fit one of the following optional modules 4344A TP 100RDS AM FM RDS Radio tuner module 4346 CDR 100RDSU CD tuner module with USB PRIORITY MUTING MIC 1 CHIME and SIREN have priority over other inputs The muting level can be adjusted via a knob on rear panel REMOTE
9. ing of the speakers is less than the power rating of the amplifier For the high impedance terminals do not connect speakers where the total impedance is less than the rated impedance see Fig 3b Failure to follow this may result in damage to the amplifier and or speakers 5 MESSAGE PRIORITY Not Supported in Australia 6 ANTENNA Only fitted when either a tuner A4344A or CD A4346 module is installed See Fig 4 for wiring NOTE The picture of the amplifier s rear panel above shows the antenna terminal in place This section of the amplifier s rear panel is blocked by a removable knock out section of metal plate which needs to be punched out and removed in order for the antenna terminal to be screwed in place 7 MIC XLR LINE PHONE INPUTS These are for microphone or line inputs CH1 to CH5 Microphone input sensitivity and impedance is 3mV 600 ohm Line input is 300mV 50k ohms The XLR Phone jack combined sockets have been designed for Mic or Line inputs without the need for switches Note Pin 1 on the XLR and the Sleeve on the phone jack are grounded as per the diagrams on the rear panel 8 MUTE These knobs adjust the muting levels of inputs CH1 and CH2 9 PRIORITY PHANTOM POWER Two of the four dip switches provide CH1 and CH2 with phantom power for condenser microphones The other two switches activate priority muting for the same two channels IMPORTANT When using phantom power turn the
10. te when on 2 METER LEDs display the audio output level on the VU meter 3 SPEAKER SELECTOR SP1 SP4 These switches activate the amplifier speaker zones Any zones can be set to any output loading but the total output loading must not exceed the amplifiers maximum loading specification 4 SIREN Pressing these switches will activate the siren tones Two sound patterns are offered depending on which button is pressed One tone is continuous the other tone varies in pitch in a repeating cycle 5 CHIME Pressing this switch will activate the tone chime circuitry This is a four tone ascending sound BONG BONG BONG BONG 6 BLANK PANEL PACK This is used for mounting the optional tuner 4344 CD player A4346 modules or PACKs which can be installed into front panel slot with the complementary antenna module being installed on the rear MIC LINE These knobs CH1 to CH5 adjust the volume levels of the microphone or line inputs as selected by the rear panel switch of CH 1 to CH 5 BASS EQUALISER Knob to adjust the low frequency sound to the MASTER volume output 9 TREBLE EQUALISER 10 11 Knob to adjust the high frequency sound to the MASTER volume output MASTER This knob is used for adjusting the volume of the output audio mixed from all five sources PACK BASS amp TREBLE These BASS and TREBLE knobs control the bass and treble signals of the optional tuner or
11. udes switched speaker zones amp direct 70 100V is a permanent output connection irrespective of speaker zone switching MATCHING MATCHING MATCHING MATCHING TRANS TRANS TRANS TRANS Fig 3a amp 3b Connect speakers as per these diagrams Ensure power is off before connecting or disconnecting speakers JDM 4 Zone Public Address Amplifier TELECOM ONLY FOR TUNER FM DIPOLE ANTENNA NETWORK FM ANTENNA AM OUTDOOR ANTENNA TELEPHONE PABX UNIT TELEPHONE MUSIC ON HOLD TELEPHONE PAGING INPUT HIGH IMPEDANCE BALANCED RMS 24 100V 420 DIRECT _ MESSAGE UTPUT IM C MIC XLR LINE PHONE INPUTS 4 4L TD om lala E V ad ol s ag E HI ails 4 t V 25V toov JD MEDIA CO 2 69 010015 LINE SRT y v oT 9R S GND P H PRIORITY PR RITY 20 20 d A po 16 50 10 5 CLASS 1 WIRING CLASS 2 WIRING AC230 50Hz 625W DC POWER 24V 20A CAUTION ro REDUCE THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE FUSERATING 250 SERIAL LASS qu CHIME MASTE LINE Q LINE
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