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

Diagnostics .............................................................................................................................................. 4-1

Analog Audio Performance:..................................................................................................................... 4-1

Setup:................................................................................................................................................... 4-1

Input to Send........................................................................................................................................ 4-3

Insert Return Inputs to Outputs: ......................................................................................................... 4-16

Lexicon Audio Precision ATE Summary ............................................................................................ 4-33

Chapter 5 Troubleshooting ......................................................................... 5-1

http://www.lexicon.com/kbase/index.asp

Diagnostics .............................................................................................................................................. 5-1

Power On Diagnostics: ........................................................................................................................ 5-1

Error Indication:.................................................................................................................................... 5-1

Test Descriptions: ................................................................................................................................ 5-2

Functional Tests / Extended Diagnostics................................................................................................. 5-5

Functional Test Descriptions ................................................................................................................... 5-6

Switch Test: ......................................................................................................................................... 5-6

Front Panel Pots .................................................................................................................................. 5-8

LED Test .............................................................................................................................................. 5-9

Display Character Test ........................................................................................................................ 5-9

Display Block Test ............................................................................................................................. 5-10

Auto Test Execution........................................................................................................................... 5-11

Burn In Loop ...................................................................................................................................... 5-11

Footpedal Test ................................................................................................................................... 5-12

MIDI Test ........................................................................................................................................... 5-13

DRAM Test ........................................................................................................................................ 5-14

WCS Test........................................................................................................................................... 5-15

Lo SRAM Test.................................................................................................................................... 5-15

ROM Test........................................................................................................................................... 5-16

TOP LEVEL MENU UTILITIES & TOOLS ............................................................................................. 5-16

Exit Diags........................................................................................................................................... 5-17

Scope Loops ...................................................................................................................................... 5-17

Software Err Log ................................................................................................................................ 5-17

Clear Err Log...................................................................................................................................... 5-18

2186 Tools ......................................................................................................................................... 5-18

View Alg Nums................................................................................................................................... 5-19

UTILITY MENU (Options Button) .......................................................................................................... 5-19

Repeat Test ....................................................................................................................................... 5-19

Test Result Menu............................................................................................................................... 5-20

View DRAM........................................................................................................................................ 5-26

MIDI Scope ........................................................................................................................................ 5-26

EMERGENCY DIAGNOSTICS.............................................................................................................. 5-26

Removing the Top Cover:...................................................................................................................... 5-27

................................................................................................. 5-1

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