Midas Consoles U16, U24, U32 106

106 Appendix E: Best Grounding Practice

VeniceU

Operator Manual

Diagram showing the bond connection between console and 19” rack

Midas VeniceU

console

Power distribution

unit (PDU)

Power connection

Power supply

unit (PSU)

without internal

isolation barrier

Laptop

PC/Mac

Power connection

USB connection

Power

connection

19” rack

Audio connection

Bond

Power connection

Contents

Main Page VeniceUOperator Manual iii Important safety instructions Legal disclaimer Limited warranty 1 Warranty 2 Online registration iv 3 Return materials authorization 4 Warranty Exclusions 5 Warranty transferability 6 Claim for damage Other important information Page vii Contents Chapter 2 Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Chapter 3 Using The VeniceU With USB . . . . . . . . . . . . . . . . . . .19 Chapter 4 Working With The Console. . . . . . . . . . . . . . . . . . . . . 35 Chapter 5 Mono Input Channel. . . . . . . . . . . . . . . . . . . . . . . . . . 37 viii Chapter 6 Multifunction Input Channel . . . . . . . . . . . . . . . . . . . 47 Chapter 7 Output Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Appendix A Functional Block Diagrams . . . . . . . . . . . . . . . . . . . . 75 Appendix B Technical Specification . . . . . . . . . . . . . . . . . . . . . . . 83 Contents ix Appendix D Crib Sheets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Appendix E Best Grounding Practice. . . . . . . . . . . . . . . . . . . . . . . 97 Appendix F Modification For VeniceU16 Rack Mounting. . . . . . . 107 Appendix G Service Information . . . . . . . . . . . . . . . . . . . . . . . . .115 Page 1 Chapter 1: Introduction Overview of the VeniceU 2 Key features 3 Key features Page Page 6 U32 U24 U16 External connections 7 External connections 8 Signal flow Signal flow 9 10 Mix matrix About this manual Bus outputs Service and support 11 Service and support Page 13 Chapter 2: Getting Started Installation Handling the equipment 14 Electric fields Connecting up Audio connections Connecting up 15 Connecting to balanced/unbalanced equipment 16 Other connections Setting up Page Page 19 Chapter 3: Using The VeniceU With USB Windows 7 operating system 1 2 20 Windows 7 operating system 21 7 8 9 Using the Archwave USB Driver Control Panel 22 Windows 7 operating system 23 24 Windows 7 operating system 25 26 Windows 7 operating system 27 Page Page Page Updating the VeniceU firmware 31 Updating the VeniceU firmware 1 2 3 4 32 5 6 Troubleshooting USB operation Audio problems Troubleshooting USB operation 33 Page 35 Chapter 4: Working With The Console Ground loop problems Page Chapter 5: Mono Input Channel 38 Overview of the mono input channel Rear panel 39 40 Gain EQ 41 EQ 42 4 Auxes 43 44 Pan, mute and solo Fader, routing and meter 45 Fader, routing and meter 46 Meter Routing Page 48 Overview of the multifunction input channel Rear panel 49 50 Gain (mic inputs) USB Stereo line inputs 51 Stereo line inputs EQ 52 Balance, mute and solo 53 Balance, mute and solo 54 Fader, routing and meter Fader, routing and meter 55 Meter Page Chapter 7: Output Section Page Overview of the outputs section 59 Overview of the outputs section 60 Output module notes Group-aux changeover Meter changeover Groups 61 Groups 62 USB USB 63 64 Matrices Matrices 65 4 66 Stereo returns 4 Monitors 67 68 Master outputs (mono and stereo) 69 Master outputs (mono and stereo) 70 Talkback 71 Talkback 72 Playback and recording Playback Recording Local monitor and phones 73 Local monitor and phones Page Page Page Page Page Page Page Page Page Appendix B: Technical Specification 84 Dimensions 85 Dimensions 86 External dimensions of the U16, U24 and U32 consoles. Dimensions are in millimetres (inches). 87 Appendix C: Application Notes Gain Headroom 88 The effect of EQ Dynamic processing Unity Gain 89 Unity Gain Signal Processing and Amplifiers 90 Routing FOH mode Routing 91 MON mode Dual FOH/MON Mode Page Page Page Page Page 97 Appendix E: Best Grounding Practice Safety first Ground loops 98 Noise sources Noise sources 99 Isolated USB computer system. Note how the isolation barrier breaks the ground loop. Non-isolated USB computer system. With no isolation barrier, the ground loop is present. 100 Noise solutions Balanced connections 101 Balanced connections 102 Balanced transformers Screen termination Page 104 Unbalanced connections Signal ground lift XLR shells 105 XLR shells Signal ground bonding 106 Diagram showing the bond connection between console and 19 rack 107 Appendix F: Modification For VeniceU16 Rack Mounting Electrostatic discharge (ESD) precautions Rack mounting parts Special tools required Recommended torque settings 108 Modification procedure Modification procedure 109 110 6 A B C Modification procedure 111 112 Modification procedure 113 Page Appendix G: Service Information 116 Equipment disposal Operator Manual 117 FEDERAL COMMUNICATIONS COMMISSION COMPLIANCE INFORMATION Venic eU16/VeniceU24/VeniceU32 Important information: MUSIC Group Research UK Limited