102
Appendix E: Best Grounding Practice
VeniceF
Operator Manual
Ground loop
Noise sources
Audio manufacturers have known about these issues for many years and most
equipment is designed to reduce ground loop generation to the bare minimum or to
minimise the effects. But, as switch mode power supplies and computers become more
common place, the earth/ground environments that audio systems operate in become
more and more contaminated by noise currents from both within the system and from
external sources.
The FireWire connection on the VeniceF is an example of this. The high speed nature of
the connection necessitates a good screen ground to bond the computer to the VeniceF.
However, if the computer is grounded via its power cable a ground loop will exist that
can inject current into the console chassis and may produce currents or small voltages
that can affect other externally connected equipment. The size of the injected current
will vary from one computer to another, depending on the quality of the grounding and
components used internally, and within its power supply. To eliminate this problem,
computers with an isolated power supply are the best choice.
Power distribution
unit (PDU)
Midas Venice
F
console
GEQ (for
example, Square
ONE Graphic)
Audio connection
Loop currents
Power connection
Power
connection
Summary of Contents for Venice F16
Page 2: ......
Page 8: ...viii Contents VeniceF Operator Manual...
Page 38: ...30 Chapter 4 Working With The Console VeniceF Operator Manual...
Page 50: ...42 Chapter 5 Mono Input Channel VeniceF Operator Manual...
Page 80: ...72 Chapter 7 Output Section VeniceF Operator Manual...
Page 82: ...74 Appendix A Functional Block Diagrams VeniceF Operator Manual Overview...
Page 83: ...Mono input module 75 VeniceF Operator Manual Mono input module...
Page 84: ...76 Appendix A Functional Block Diagrams VeniceF Operator Manual Stereo input module...
Page 85: ...Stereo return 77 VeniceF Operator Manual Stereo return...
Page 86: ...78 Appendix A Functional Block Diagrams VeniceF Operator Manual Group...
Page 87: ...Aux 79 VeniceF Operator Manual Aux...
Page 88: ...80 Appendix A Functional Block Diagrams VeniceF Operator Manual Monitor...
Page 89: ...Stereo master 81 VeniceF Operator Manual Stereo master...
Page 90: ...82 Appendix A Functional Block Diagrams VeniceF Operator Manual Mono master...
Page 91: ...Matrix 83 VeniceF Operator Manual Matrix...
Page 92: ...84 Appendix A Functional Block Diagrams VeniceF Operator Manual Solo and comms...
Page 93: ...Digital 85 VeniceF Operator Manual Digital...
Page 94: ...86 Appendix A Functional Block Diagrams VeniceF Operator Manual...
Page 104: ...96 Appendix C Application Notes VeniceF Operator Manual...
Page 106: ...98 Appendix D Crib Sheets VeniceF Operator Manual Mono input channels Notes...
Page 107: ...Dual stereo input channels 99 VeniceF Operator Manual Dual stereo input channels Notes...
Page 108: ...100 Appendix D Crib Sheets VeniceF Operator Manual...
