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NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when
the equipmentis operated in a commercial environment. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.

This Class A digital apparatus meets the requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numérique de la Classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du
Canada.

does not operate normally, or has been dropped.

No naked flame sources, such as lighted candles, should be placed on the apparatus.

WARNING:  To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.  Do not expose
the apparatus to dripping or splashing and do not place objects filled with liquids, such as vases, on the apparatus.

THIS APPARATUS MUST BE EARTHED.  Under no circumstances should the safety earth be disconnected from the
mains lead.

The mains supply disconnect device is the mains plug.  It must remain accessible so as to be readily operable when the
apparatus is in use.

If any part of the mains cord set is damaged, the complete cord set should be replaced.  The following information is
for reference only.

The wires in the mains lead are coloured in accordance with the following code:

Earth (Ground):

Green and Yellow (US - Green/Yellow)

Neutral:

Blue (US - White)

Live (Hot):

Brown (US - Black)

As the colours of the wires in the mains lead may not correspond with the coloured markings identifying the terminals
in your plug, proceed as follows:

The wire which is coloured Green and Yellow must be connected to the terminal in the plug which is
marked with the letter E or by the earth symbol.

The wire which is coloured Blue must be connected to the terminal in the plug which is marked with the
letter N

The wire which is coloured Brown must be connected to the terminal in the plug which is marked with the
letter L

Ensure that these colour codes are followed carefully in the event of the plug being changed

This unit is capable of operating over a range of mains voltages as marked on the rear panel.  It is important to ensure
that the correct mains fuse is fitted before switching on the unit.

Summary of Contents for UREI 1620LE

Page 1: ...1...

Page 2: ...commitment on the part of the vendor Soundcraftshallnotbeliableforanylossordamagewhatsoeverarisingfromtheuseofinformation or any error contained in this manual No part of this manual may be reproduced...

Page 3: ...MAINS INSTALLATION 13 INITIAL WIRING CONSIDERATIONS 14 AUDIO WIRING 14 SHIELDING 14 POINTS TO REMEMBER 15 WORKING SAFELY WITH SOUND 15 INSPECTION AND INSTALLATION 16 BLOCK DIAGRAM 22 OPERATING CONTRO...

Page 4: ...intended to alert the user to the triangle is intended to alert the user to the triangle is intended to alert the user to the triangle is intended to alert the user to the triangle is intended to ale...

Page 5: ...or replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use att...

Page 6: ...d with liquids such as vases on the apparatus THIS APPARATUS MUSTBE EARTHED Under no circumstances should the safety earth be disconnected from the mains lead Themainssupplydisconnectdeviceisthemainsp...

Page 7: ...controls The Model 1620LE has been designed for long life and reliability All input and output level controls are quiet and smooth acting Modular construction assures minimum down time for service all...

Page 8: ...Ohms Gain 64 dB maximum 1 kHz measured at House XLR Connector RCA type phono jack Microphone Input Input Impedance For 150 ohm microphone electronically balanced Gain 60 84 dB adjustable on card measu...

Page 9: ...mended Load 200 Ohms Frequency Response 1 5 dB 20 Hz 20 kHz THD N 0 3 20 Hz 20 kHz 20dBu into 200 ohm load Maximum Output 20 dBu into 200 Ohms Connector 6 3mm 1 4 in stereo jack on front panel Mono Ou...

Page 10: ...0V setting Power Connector IEC with cable retainer ENVIRONMENT Operating 0 C to 50 C 32F to 122 F Storage 20C to 60C 4F to 140F PHYSICALSPECIFICATIONS Dimensions Front Panel 133 x 483mm 5 1 4in x 19 i...

Page 11: ...o and from the Dealer or Soundcraft and postage must be prepaid 4 This warranty shall only be available if a the Equipment has been properly installed in accordance with instructions contained in Soun...

Page 12: ...12...

Page 13: ...circuitry may result Likewise on all balanced inputs avoid sources with large common mode DC AC or RF voltages as these will reduce the available signal range on the inputs Note that OdBu 0 775V RMS...

Page 14: ...nnection and adequate screening of those interconnections This must be done in a logical sequence to avoid problems and assist in the localisation of problem equipment Connect the Main or Booth system...

Page 15: ...ety regulations are not being infringed WORKING SAFELYWITH SOUND Althoughyournewconsolewillnotmakeanynoiseuntilyoufeeditsignals ithasthecapabilitytoproducesoundswhichwhenmonitored through an amplifier...

Page 16: ...L CONSIDERATIONS The 1620LE Mixer will operate satisfactorily over a range of ambient temperatures from 0 C to 50C 32F to 122F and up to 80 non condensing relative humidity If the system is installed...

Page 17: ...the recessed switch EXTERNAL CONNECTIONS Note See also the Block Diagram page 22 for further details Input and output signal wires should be shielded cable connected in accordance with standard wirin...

Page 18: ...uxiliary Line Level Inputs Five sets of auxiliary line level inputs are available on the Model 1620LE labelled AUX A B C D and E Connection on the rear panel is through RCA type phono jacks These inpu...

Page 19: ...izer crossover network or other connected device we recommend connecting a 620 ohm 1 2 watt resistor across the line at the end of the cable which is hooked up to the input of that device This will es...

Page 20: ...l control should be provided JACK Signal Tip Gnd Ring Gnd Ring Tape Outputs Two parallel sets of RCA type phono jacks provide convenient means for connecting to tape recorders These outputs are not af...

Page 21: ...sformer less circuitry or input transformers minimize common mode noise or interference which may be induced into the interconnecting wires or cables Where audio must be transmitted through cables or...

Page 22: ...22 BL BL BL BL BLOCK DIA OCK DIA OCK DIA OCK DIA OCK DIAGRAM GRAM GRAM GRAM GRAM...

Page 23: ...ut positions labelled AUX 1 AUX 4 have input source selector switches allowing any of these four positions to control any of five auxiliary inputs AUX A E or the output of an optional internal preampl...

Page 24: ...six position selector switch determines which input will be heard When cueing be certain that the level control for that input is completely off to avoid cueing through the house system HOUSE BOOTH A...

Page 25: ...GURATIONS MICROPHONE GAIN ADJUSTMENT As supplied the microphone preamplifier card Part No 1620 MC is set for 64 dB of gain which should be adequate for most installations If necessary the gain may be...

Page 26: ...he connector on the motherboard into which the new preamplifier card will be installed This switch allows its AUX input to be used as a line input when no preamplifier is installed and must be switche...

Page 27: ...the mother board Note the orientation of the card and make certain that the card correctly mates with the connector on the motherboard 4 If required adjust the gain of the preamplifier by rotating the...

Page 28: ...AUX A E from the AUX 4 control since bypassing the extra tone control and master gain amplification stages will cause the AUX 4 control to be out of phase with the other AUX controls If the same line...

Page 29: ...ontrols 1 Remove the three screws fastening the top cover of the 1620LE to the chassis and remove the cover 2 Locate the Tone Control circuit board on the right side of the front panel 3 Press and rel...

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