Lexicon Converter manual Analog Jumpers

Page 15

20/20 AD User Guide

Using the 20/20 AD

The following figure indicates the locations and factory settings of these jumpers on the board. In their closed positions, the jumpers have their right two (or lower two) pins shunted together. To open a jumper, move the shunting block to the left (or upper) two pins. (Note that the jumpers in J13 have only two pins; to open, simply remove the shunting block.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W1

 

 

W2

W9

 

 

 

W10

W11

 

W12

W13

 

 

 

W14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Analog Jumpers

 

 

W17

U30

U31 W18

W27

W16

 

W26

 

U42

U48

 

 

U49

 

 

J13

Digital Jumpers

Jumper locations

(shown with factory settings)

Note that the 20/20 AD’s analog inputs are not transformer isolated. It is, therefore, necessary to have one ground connection between the 20/20 AD and the audio source.

In addition to the ground lift jumpers, each analog input has a 600termination jumper. If the analog source expects to see a 600load, these jumpers should be closed.

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Contents 20/20 AD Precautions Electrostatic Discharge ESD Precautions Safety SummaryContents AES/EBU Interface Professional IntroductionPower Mounting Controls and ConnectorsConverter 20/20 AD Front Panel ControlsLink Level MetersCompressor DisplayPress and hold Then press one of these Synchronization Output FormattingAlternate Modes To activate Alternate modesBAL/UNBAL 20/20 AD Rear Panel ConnectorsConnectors Audio ConnectionsXLR Pinout Cables AES/EBUPdif Signal Type Attenuator DBu DBV Signal Type Pin Pin3Termination and Grounding via Internal Jumpers Word Clock These instructions are for use by qualified personnel onlyAnalog Jumpers Balanced Unbalanced Input Signals Chan Front panel AdjustmentsPK Hold AttenAES Sync Word Clock Synchronization and Sample RateInternal and External modes StatesPsychoacoustically Optimized Noise Shaping Pons About Dither00k 10.0k 12.0k 14.0k 16.0k 18.0k Dynamic Range Compression Automatic Offset Removal Compressor ModesInput Gain Threshold Release Compressor Knob ValuesTransfer Functions Non-linearUsing the 20/20 AD Lexicon Link Realigning Two DAT Recordings Digital Sinewave GeneratorGain Operating the 20/20 AD in the Digital Mode Cmrr SpecificationsDefinition of Terms