Midas XL3 Manuel de service

1Operators & ServiceManualXL3EVI PRO AUDIO GROUPKlark Teknik Building, Walter Nash Road,KidderminsterWorcestershire DY11 7HJ,EnglandTel: (01562) 7

10Switch LED Powering [All diagrams].The status LEDs are powered by three constant current sources based round Q3, Q4 and Q5[Diagram XL301_1.DGM]. Th

11GROUP MODULEThis is a double module for use as either two independent output groups or one stereo outputgroup. It is constructed on two interlinked

12The mute output from the vca is summed with any talkback signals from the communicationsmodule by IC12a and then fed to the solo switching circuit (

13Output Meter [Diagram XL20M.DGM].IC3a and b receive, rectify, and calibrate the signal fed from the group module connector ST5.The signal, now a v

14Remote Volume Options [Diagrams XL310_A4.DGM & XL310_B4.DGM].The remote volume control is based around IC10a, IC11 and IC12b in the audio path a

15[Diagram XL320_3.DGM], and via JPC to the matrix output fader RV2. The non-invertingbuffer IC13a feeds both the meter [via the meter changeo

16COMMUNICATIONS MODULECentred in this module are the controls for the intercom, talk and pink noise generatorfunctions, the automute system, and

17Pink Noise Generator [Diagram XL330_3.DGM].IC9 is the noise source; R92/C62, R93/C63, and R94/C64 provide the necessary colouration andIC11a correct

18VCA CONTROLThe internal mixes vca control voltages are derived either on the individual modules or morecommonly from the fader tray circuitry.Grand

19The second function of the module is the control for one of the eight VCA Groups. Thereference voltage from the Grand Master 2 board is sauced via

2

20POWER SUPPLYThe Midas XL3 has an external 19" rack mounting power supply to provide the three voltagerails to power the console, +18V and -18V

212. Rejumper the +18 volt block.The lid of the power supply must be removed by taking out all therelevant screws: four from the front panel, four fr

22DRAWINGSDWG No. REFERS TO SECTION ISS DATEXL301_1 Input module Inputs & Connectors 5 4.9.91XL301_2 Input module Filter, Insert & Vca 5 4.9.9

23XL390_1 Power supply Twin linear regulator 2 24.9.91XL390_2 Power supply 48V & Fans PSU & status 2 24.9.91XL390_3 Power supply Block diagra

3DECLARATION OF CONFORMITYThee Directive Covered by this Declaration89/336/EEC Electromagnetic Compatibility Directive, amended by 92/31/EEC & 93/

4ATTENTION!CABLESThis product should only be used with high quality, screened twisted pair audio cables, terminated withmetal bodied 3-pin XLR connect

5CONTENTSINTRODUCTION 5INPUT MODULE 7INPUT MODULE OPTIONS 10GROUP MODULE 11MASTER MODULE 14COMMUNICATIONS MODULE 16VCA CONTROL 18POWER SUPPLY 20SC

6IntroductionThe Midas XL3 series of consoles has been designed not only to provide the highest possiblequality sound processing facilities, but also

7INPUT MODULEDiagram XL301_1.DGMThe input signal enters via the relevant XLR connector on the console back panel at pins 7 and8 on connector 'A&a

8Diagram XL301_2.DGMThe PHASE REVERSE switch SW4 controls the inversion mode of IC2a,and passes the signalto the 12dB/octave high pass filter around

9Mute control [Diagram.XL301_4.DGM].The channel mute circuit can be activated from either the channels own MUTE switch SW13or any of the 8 automute