Lexicon CORE2, Service Manual

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Lexicon
Table of Contents
Chapter 1 Reference Documents, Required Equipment ............................1-1
Reference Documents .............................................................................................................................. 1-1
Required Equipment ................................................................................................................................. 1-1
Tools ...................................................................................................................................................... 1-1
Test Equipment ..................................................................................................................................... 1-1
Chapter 2 General Information...................................................................2-1
Periodic Maintenance................................................................................................................................ 2-1
Ordering Parts ........................................................................................................................................... 2-1
Returning Units to Lexicon for Service...................................................................................................... 2-1
Chapter 3 Specifications ............................................................................3-1
Chapter 4 Performance Verification ...........................................................4-1
Test Overview: .......................................................................................................................................... 4-1
User Interface:........................................................................................................................................... 4-1
Punch page:........................................................................................................................................... 4-1
Clock Source Page:............................................................................................................................... 4-2
Core2 Page:........................................................................................................................................... 4-3
I/O Tests:................................................................................................................................................... 4-4
Analog In To Analog Out Audio Listening Test: .................................................................................... 4-4
Analog In To Digital Out Audio Listening Test:...................................................................................... 4-4
Digital In To Digital Out Audio Listening Test:....................................................................................... 4-5
Digital Input To Analog Output Listening Test:...................................................................................... 4-5
Gain Tests: ................................................................................................................................................ 4-6
Analog In To Digital Out Gain Test:....................................................................................................... 4-6
Digital In To Analog Out Gain Test:....................................................................................................... 4-6
Frequency Response: ............................................................................................................................... 4-7
Analog In To Digital Out Frequency Test: ............................................................................................. 4-7
Digital In To Analog Out Frequency Test: ............................................................................................. 4-7
THD+N Measurement: .............................................................................................................................. 4-8
Analog In To Digital Out THD+N Test: .................................................................................................. 4-8
Digital In To Analog Out THD+N Test: .................................................................................................. 4-9
Crosstalk Tests: ........................................................................................................................................ 4-9
Analog In To Digital Out Crosstalk Test: ............................................................................................... 4-9
Digital In To Analog Out Crosstalk Test: ............................................................................................. 4-10
Dynamic Range Tests:............................................................................................................................ 4-10
Analog In To Digital Out Dynamic Range Test:................................................................................... 4-10
Digital In To Analog Out Signal to Noise Test:.................................................................................... 4-11
DBX THD+N Tests: ................................................................................................................................. 4-12
Analog In To Digital Out DBX THD+N Test:........................................................................................ 4-12
DBX Characteristics ............................................................................................................................ 4-12
Lexicon Audio Precision ATE Summary.............................................................................................. 4-13
............................................................................................................................................................. 4-13
Chapter 5 Troubleshooting ........................................................................5-1
Installation ................................................................................................................................................. 5-1
Lexicon Studio Installation Troubleshooting.......................................................................................... 5-1
Lexicon Studio Core2: Complete Uninstall and re-installation directions.............................................. 5-1
Lexicon Studio Core2: sharing IRQ or no resources assigned. Change BIOS ........................................ 5-3
V1.20 Release Notes ................................................................................................................................ 5-3
Addendum #1: NEW USER INTERFACE FEATURES......................................................................... 5-4
Addendum #2: AUXILIARY SENDS AND RETURNS........................................................................... 5-5
Addendum #3: TEXT ENTRY OF FADER VALUES ............................................................................. 5-5
Addendum #4: LEVEL ON EXTERNAL OUTPUT WHEN CLOSING LEXPANEL ............................... 5-5
Addendum #5: ROUTING IN CUBASE ................................................................................................. 5-5