OPERATORS MANUAL
Contents
1. sindino xny2. 822122 22222 pup prep D EE p E lar type rated at 160mA DEI tant TERE 222222 5 E oe m cc PR2 Lr e pisd 100 i BLUE A Ai2 wams BROWN Replace the top cover using the seven screws For conversion to 230Volt AC previously set to 115Volt AC Exchange the 315mA fuse for a sim Re connect to mains power source 4b In both cases 5 6 DA6 OPERATORS MANUAL Input L amp R Q Input Display CONTROL DESCRIPTION The DA6 has been designed for ease of use It operates on balanced or unbalanced signal levels in the range 15dB to 15dB ref 4dBm Output L amp R ct Mono Stereo AN OUTPUT 1 Used to set the optimal input gain for both Left and Right signals Use the display above to ensure the correct operating levels are being attained Adjustment in the range 15dB is possible Separate controls are offered to permit the re alignment of any offset stereo image These controls also adju st the output level of the auxiliary link jacks which implies that any connected slave DA
3. DRAWMER DA 6 DISTRIBUTION AMP OPERATORS MANUAL CONTENTS SAFETY CONSIDERATIONS page 1 INTRODUCTION page 2 INSTALLATION page 2 HEADPHONES pages 1 4 ISOLATING TRANSFORMERS page 3 CONTROL DESCRIPTIONS page 6 IF A FAULT DEVELOPS page 8 CONTACTING DRAWMER page 8 TECHNICAL SPECIFICATION page 9 BLOCK DIAGRAM page 10 COPYRIGHT This manual is copyrighted 2002 by Dr awmer Electronics Ltd With all rights reserved Under copyright laws this man ual may not be duplicated in whole or in part without the written consent of Drawmer ONE YEAR LIMITED WARRANTY Drawmer Electronics Ltd warrants the Drawmer DA6 audio processor to conform substantially to the specifications of this manual for a period of one year from the original date of purchase when used in accordance with the specifications detailed in this manual In the case of a valid w arranty claim your sole and exclusive remedy and Drawmer s entire liability under any theory of liability will be to at Drawmer s discretion repair or replace the product without charge or if not possible to refund the purchase price to you This warranty is not transferable It applies only to the original purchaser of the product For warranty service please call your local Drawmer dealer Alternatively call Drawmer Electronics Ltd at 44 0 1709 527574 Then ship the defective product with transportation and insurance charges pre paid to Drawmer Electronics Ltd Coleman Street Parkg
4. Always connect the mains earth to the unit Use fibre or plastic washers to prevent the front panel becoming marked by the mounting bolts AUDIO CONNECTIONS Input and Output audio connections are provided via balanced XLRs at a level of 4dBu This applies to both inputs and outputs The wiring convention being Pin 1 Ground pin 2 Hot and pin 3 Cold For use with unbalanced systems the Cold pin 3 must be grounded at bo th input and output inside the XLR connectors The Stereo Aux Output s are balanced 1 4 TRS jack sockets where Tip connection is Hot Ring is Cold and Sleeve is Ground These connections are offered for chaining multiple DA6 units if there is a req uirement for more than 6 stereo outputs For use with unbalanced systems use mono jack plugs or connect the Ring Cold to the Sleeve terminal inside the Jack plugs DA6 OPERATORS MANUAL 3 PRIMARY UNIT riers 9 1 4dB BALANCED OUTPUT EAD D 4dB BALANCED INPUT DISCONNECT GROUND HERE INPUTS IF GROUND HUM LOOPS OCCUR NEGATIVE PHASE COLD POSITIVE PHASE HOT NEGATIVE PHASE COLD POSITIVE PHASE HOT SCREEN SCREEN NEGATIVE PHASE COLD POSITIVE PHASE HOT NEGATIVE PHASE COLD SCREEN SCREEN POSITIVE PHASE HOT SCREEN Y SECONDARY LINKED
5. to country In the interests of product development Drawmer reserve the right to modify or improve specifications of this product at any time without prior notice DA6 OPERATORS MANUAL 1 DRAWMER DA6 Distribution Amp SAFETY CONSIDERATIONS ANY CAUTION MAINS FUSE TO REDUCE THE RISK OF FIRE REPLACE THE MAINS FUSE ONLY WITH THE SAME TYPE WHICH MUST BE A CLASS 3 230 VOLT TIME DELAY TYPE RATED AT 160mA WHERE THE MAINS INPUT VOLTAGE SWITCH IS SET TO 230 VOLTS AC AND 315mA WHERE THE MAINS INPUT VOLTAGE IS 115 VOLTS AC ALL FUSES MUST COMPLY WITH BS EN 60127 2 1991 SHEET THE FUSE BODY SIZE IS 20mm x 5mm CAUTION MAINS CABLE DO NOT ATTEMPT TO CHANGE OR TAMPER WITH THE SUPPLIED MAINS CABLE CAUTION SERVICING DO NOT PERFORM ANY SERVICING REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE CAUTION HEADPHONES THE HEADPHONE AMPLIFIER IN THIS UNIT IS CAPABLE OF PRODUCING 1 WATT INTO 8Q SPEAKERS DRAWMER DO NOT ACCEPT ANY RESPONSIBILITY FOR DAMAGE CAUSED TO OPERATOR HEARING OR SPEAKER DEVICES BY USE OF EXCESSIVE OUTPUT LEVELS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN 2 DA6 OPERATORS MANUAL INTRODUCTION The distribution of mono and stereo balanced audio signals from a single source to multiple destinations has many applications including multi zone sound reinforcement installation live spo
6. 6 will only require to have its input trims set to OdB vertically Since the DA6 is normally used as a line amplifier then it is quite acceptable to see signals in the positive gain region of this display However ensure that the 15dB LED never illuminates other than for brief instances otherwise distortion will occur These controls should be used to set th e optimal output level to match the input section of the connected device for both Left and Right signals Adjustment of 15dB is possible Normally any stereo image offset will have been corrected by the Left Right input controls However separate output controls are also offered to give total control of the stereo image Selects whether the channel output is to be separate Stereo signals or summed to produce a Mon o signal If only one input is used this will be output to both sockets if Mono is selected Caution should be used when operating the DA6 with two similar stereo signals that are out of phase with each other Under such conditions using th e Mono mode will produce very little usable output LEDs show the status of the switch DA6 OPERATORS MANUAL 7 OUTPUT 6 MONITOR 20 6 LE NE 7 1 SELECT CHANNEL Chan Select This rotary switch selects which stereo or mono ou tput is to be routed through to the stereo headphone amplifier H Phone This control determines the amount of headphone amplifier drive Caution should be used whe
7. UNIT FOR UNBALANCED OPERATION CONNECT NEGATIVE PHASES PIN 3 TO GROUND PIN 1 IN EACH XLR Interference If the unit is to be used where it maybe exposed to high levels of disturbance such as found close to a TV or radio transmitter we suggest that the unit be operated using an optional wiring of the balanced configuration The screens of the signal cables should be connected to the chassis connection on the XLR connector as opposed to connecting to pint The DAG fully conforms to the EMC standards Ground Loops If ground loop problems are encountered never disconnect the mains earth but instead tr y disconnecting the signal screen on one end of each of the cables connecting the DA6 to the patchbay If such measures are necessary balanced operation is recommended ISOLATION TRANSFORMERS The DA6 has the capability of being isolated at its outputs using low impedance 6000 balanced transformers Each output can be individually isolated and it is possible to have mixed configurations where some outputs retain their default connection of electronically balanced Isolating transformers can be factory fitted or alternatively retro fitted by a Drawmer appointed service agent or a suitably qualified engineer The isolating transformer is manufactured by Stevens amp Billington Ltd Part Number TX104 Any warranty will be void if isolating transformers are fitted by non approved methods or if unspecified transfo
8. ate Rotherham S62 6EL UK Write the RA number in large letters in a prominent position on the shi pping box Enclose your name addre ss telephone number copy of the original sales invoice and a detailed description of the problem Drawmer will not accept responsibility for loss or damage during transit This warranty is void if the product has b een damaged by misuse modification or unauthorised repair THIS WARRANTY IS IN LIEU OF ALL WARRANTIES WHETHER ORAL OR WRITTEN EXPRESSED IMPLIED OR STATUTORY DRAWMER MAKES NO OTHER WARRANTY EITHER EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR NON INF RINGEMENT PURCHASER S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY SHALL BE REPAIR OR REPLACEMENT AS SPECIFIED HEREIN IN NO EVENT WILL DRAWMER ELECTRONICS LTD BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY DEFECT IN THE PRODUCT INCL UDING LOST PROFITS DAMAGE TO PROPERTY AND TO THE EXTENT PERMITTED BY LAW DAMA GE FOR PERSONAL INJURY EVEN IF DRAWMER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES Some states and specific countries do not allow the exclusion of implied warranties or limitations on how long an implied warranty may last so the above limitatio ns may not apply to you This warranty gives you specific legal rights You may have additional rights that vary from state to state and country
9. ge of this equipment Please address correspondence to Drawmer Technical Help line Coleman St Parkgate Rotherham S62 6EL UK or E mail us on tech drawmer com Drawmer dealers Authorised service departments and other contact in formation can be obtained from our web pages on http www drawmer com DA6 OPERATORS MANUAL TECHNICAL SPECIFICATIONS INPUT IMPEDANCE MAX INPUT LEVEL MAX OUTPUT LEVEL OUTPUT IMPEDANCE NOISE CROSSTALK DISTORTION BANDWIDTH HEADPHONE AMPLIFIER TRANSFORMER OPTION Levels ref 4dBm 15 Bal 23 5 Unbal 18dB Bal 22 5 Unbal 17 5 into 6000 Any output 330 electronically balanced Better than 95 dB Gain OdB Bandwidth 22Hz 22kHz Better than 90dB 10kHz Input grounded any channel output 1kHz Output OdB better than 0 008 10dB better than 0 008 20dB better than 0 015 18Hz to 32kHz 1dB Will deliver 1 Watt into 80 Recommended Headphone Impedance 8O to 6000 Outputs fitted with specified Stevens amp Billington Ltd transformer will have the following specification Max Input Level 2 40 Hz Distortion 1 KHz Bandwidth 10 KO Load Insertion Loss Bandwidth 600 O Load Insertion Loss DCR Winding 1 DCR Winding 2 POWER REQUIREMENTS FUSE RATING FUSE TYPE CASE SIZE WEIGHT incl packaging 6dB for 0 5 THD 0 dB Output better than 0 008 20 Hz 45 KHz 0 10dB with 10 KQ load 20 Hz 33 KHz 0 67dB wit
10. h 600 Q load 690 760 1160 115Volt or 230Volt at 50 60Hz 30 Watts 160mA for 230Volt 315mA for 115Volt CONFORMING TO BS EN 60127 2 1991 SHEET 20mm x 5mm Class 3 Slo Blo 250Volt Working 482mm w x 44mm h x 200mm d 4 05 Kgs With all Transformers fitted 4 60 Kgs DA6 OPERATORS MANUAL 10 BLOCK DIAGRAM pales a s EE eAisseoxe JO esn 1exeeds JO 4 10je1edo Aujigisuodsai Aue 1de2oe zou op 1euwei sjeuuojsue Burpuepeq wyo 009 a PUR dre pp d YM peny one eq ueo sindino 20 SUO MIO SUO euo ale pue sindui OJON JaN ndino 9JON e Indu indino dup ybiH 9 9 a 2 webs A _ QUO 0818 S indino upp ndur yen dic 9 Jeuueu gpue 9 PUUEUO pndu 46H puueu oj 0 2 eyoN d ES ueg nduyo lt nddya 28 indino indu Jeuueu uogas OUOJA 0948 ppup 5
11. h a mains input operating voltage different to that for which the unit is supplied the following procedure must be carried out by a technically competent person see following diagrams 1 Disconnect the unit from the mains 2 Using a number 1 size pozidrive screwdriver remove the seven self tapping screws that retai n the top cover Two screws are found along each side two along the top edge at the rear and the upper central screw on the front facia panel 3 Slide the voltage change over switch SW8 until the correct or nearest mains input voltage is visible on the switch actuator lar type rated at 315mA imi Exchange the 160mA fuse foras For conversion to 115Volt AC previously set to 230Volt AC 4a DA6 OPERATORS MANUAL NUT INNEN toD DE noD E DE noD E DE toD E toD DE noD E toD E DE toD E DE noD E E noD E DE noD E DE noD E DE toD DE noD DE noD DE toD DE E a DE pp Da fem xum T D m D m D m 5 m m D m m m m D 5 D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D m D D m m D 5 m 5 D 2 zi pp
12. n using high output levels and low impedance headphones Output Display This display shows the stereo output levels of the selected channel feed to headphones removing the need to utilise headphones as a method of monitoring the output signals 8 DA6 OPERATORS MANUAL IF A FAULT DEVELOPS For warranty service please call Drawmer Electronics Ltd Or their arest authorised service facility giving full details of the difficulty On receipt of this information service or shi pping instructions will be forwarded to you No equipment should be returned under the warranty without prior consent from Draw mer or their authorised representative For service claims under the warranty agreement a service Returns Authorisation RA number will be given Write this RA number in large letters in a prominent position on the shipping box Enclose your name address telephone number copy of the original sales invoice and a detailed description of the problem Authorised returns should be prepaid and must be insured All Drawmer products are packaged in specially designed containers for protection If the unit is to be returned the original container must be used If this container is not available then the equipment should be packaged in substantial shock proof material capable of withstanding the handling for the transit CONTACTING DRAWMER Drawmer Electronics Ltd will be pleased to answer all application questions to enhance your usa
13. rmers are fitted 4 DA6 OPERATORS MANUAL MONITOR HEADPHONES For the purposes of monitoring each output stereo 74 TRS jack socket is offered on the front panel This having the standard wiring convention of Tip being Left Ring being Right and Sleeve being common Ground This output is capable of driving headphones with an impeda nce between 80 and 6000 The amplifier has an output of approximately 1Watt Caution is required when operating at high output levels with low impedance headphones DRAWMER do NOT accept any responsibility for damage caused to operator hearing or speaker devices by use of excessive output levels POWER CONNECTION The DA6 unit will be supplied with a power cable suitable for domesti c power outlets in your country For your own safety it is important that you use this cable to connect to the mains supply earth The cable must not be tampered with or modified The power supply socket has an integral fuse drawer containing the power fuse and a spare both of the same value to suit the mains voltage for whi ch the unit has been supplied Removal of the drawer is only poss ible with the power cord removed The fuse should never blow under normal operation If the fuse is suspected of having blown then fault will have occurred and this fault condition should be inspected by a qualified service engineer When replacing the fuse always comply with the Safety Instructions If the unit is to be used wit
14. rts events coverage broadcast studios video suites duplication houses or where high quality audio has to be distributed to a number of locations down long cable runs The Drawmer DAG is a six channel stereo output or twelve mono distribution amplifier featuring XLR balanced connections Optional transformer balanced outputs are offered for instanced where electrical isolation of remote equipment is required The electronical ly balanced stereo input features individual left right level controls with LED bargraph metering enabling the correct balan cing of stereo material or two mono signals Each of the six output pairs incorporate further left r ight level controls and a Mono Stereo switch which will mix two stereo signals or connect a single mono signal to both stereo outputs The monitor section consists of a channel select so that the individual left right output level of each channel can is displayed on the output LED bargraph and can be simultaneously heard at the front panel headphone jack An auxiliary pair of balanced output jacks provide a facility to connect further DA6 units where even more distribution is required These outputs are post input gain trim and may be fitted with optional output isolating transformers INSTALLATION The DAG is designed for standard 19 rack mounting and occupies 1U of rack space Avoid mounting the unit directly above power amplifiers or power supplies that radiate significant amounts of heat
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