Lexicon Studio Core2 Service Manual

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Lexicon Studio Core2

Desktop

Audio System

Service Manual

Lexicon Studio Core2 Service Manual

Lexicon Inc. ● 3 Oak Park ● Bedford, MA 01730-1441 ● Tel (781) 280-0300 ● Customer Service Fax (781) 280-0499

Lexicon Part # 070-14394 Rev 0 Printed in the United States of America

Lexicon

Lexicon Studio Core2 Service Manual

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

Lexicon Studio Core2 Service Manual

Addendum #6: PUNCH ROUTING IN CUBASE ................................................................................... 5-5

Addendum #7: CLOCK SOURCE CONSISTENCY IN CUBASE ......................................................... 5-6

Addendum #8: THE EFFECT OF ROUTING CHANGES ON WAVE DRIVERS.................................. 5-6

Addendum #9: SELECTION OF WINDOWS SOUNDS ........................................................................ 5-7

Addendum #10: CLOCK SOURCE SELECTION IN MMIO .................................................................. 5-7

Addendum #11: MMIO BUS ALIGNMENT IN ACID AND COOL EDIT PRO ....................................... 5-7

Addendum #12: NOISES THAT OCCUR AFTER SHUTDOWN OF SAMPLITUDE ............................ 5-7

Addendum #13: S/PDIF EFFECTS LOOP ............................................................................................ 5-7

CORE2 USER'S GUIDE ERRATA........................................................................................................ 5-8

V1.20-P1 Update....................................................................................................................................... 5-8

Lexicon Studio Core2: Update patch v120-P1 won't unzip properly......................................................... 5-9

C2V120P2.reg - Update............................................................................................................................ 5-9

Lexicon Studio Core2: In Cubase®, the LexPanel does not get properly shut down from the task bar... 5-9

Chapter 6 Theory of Operation ..................................................................6-1

Architectural Overview .............................................................................................................................. 6-1

Core2 Block Diagram ................................................................................................................................ 6-2

Startup Sequence ..................................................................................................................................... 6-3

DSP56301 (schematic sheet 1.) ............................................................................................................... 6-3

DSP 56301 Expansion Port Memory Map (AA1, AA2 chip selects) ......................................................... 6-3

DSP 56301 Expansion Port Memory Map (AA0 chip select, 48K/44.1K mode)....................................... 6-4

DSP 56301 Expansion Port Memory Map (AA0 chip select, 96K/88.2K mode 1).................................... 6-4

DSP 56301 Expansion Port Memory Map (AA0 chip select, 96K/88.2K mode 2).................................... 6-4

DSP 56301 Expansion Port Memory Map (AA0 chip select, 96K/88.2K mode 3).................................... 6-5

DSP 56301 ESSI Ports ............................................................................................................................. 6-5

DSP 56301 ESSI Port C Register ............................................................................................................. 6-5

DSP 56301 ESSI Port D Register ............................................................................................................. 6-5

XCS10 FPGA (schematic sheet 2.) .......................................................................................................... 6-5

System Control Register 0 ........................................................................................................................ 6-6

System Control Register 1 ........................................................................................................................ 6-6

Word clock source encoding ..................................................................................................................... 6-6

System Status Register............................................................................................................................. 6-7

SPDIF TX Channel Status byte 3 ............................................................................................................. 6-7

SPDIF sample rate encoding .................................................................................................................... 6-7

Sample Clock Phase-Locked Loop (schematic sheet 3.) ......................................................................... 6-7

PCI & Option Connectors (schematic sheet 4.) ........................................................................................ 6-7

Audio I/O & Connectors (schematic sheet 5.)........................................................................................... 6-8

A/D Conversion (schematic sheet 6.) ....................................................................................................... 6-8

D/A Conversion (schematic sheets 8, 9 ).................................................................................................. 6-8

Voltage Regulators (schematic sheet 10.) ................................................................................................ 6-8

Chapter 7 - Parts List................................................................................. 7-1

CORE 2 PC BOARD ASSEMBLY ............................................................................................................ 7-1

CORE2 CONNECTOR BD MECHANICAL ASSEMBLY .......................................................................... 7-3

CORE 2 CONNECTOR BD PC BOARD ASSEMBLY .............................................................................. 7-3

CORE 2 SHIPPING MATERIAL ............................................................................................................... 7-3

Chapter 8 Schematics and Drawings......................................................... 8-1

Schematics:............................................................................................................................................... 8-1

Drawings: .................................................................................................................................................. 8-1

Lexicon

Chapter 1 Reference Documents, Required Equipment

Reference Documents

Lexicon Studio Core2 Owner's Manual - Lexicon P/N 070-13748 or latest revision Lexicon Studio Core2 Installation Instructions - Lexicon P/N 070-14195 or latest revision Lexicon Studio Core2 CD - Lexicon P/N 750-13716 or latest revision

Required Equipment

Tools

The following is a minimum suggested technician's tool kit required for performing disassembly, assembly and repairs:

•

Clean, antistatic, well lit work area.

•

(1) #1 Phillips tips screwdriver

•

(1) 14mm socket nut driver

•

PCI Passive Extender, AZ-COM 9900-27-01 (Rev. B) or equivalent.

•

PCI Passive Mini Extender, AZ-COM 9900-07-05 (Rev. B) or equivalent.

•

Solder: 63/37 - Tin/Lead Alloy composition, low residue, no-clean solder.

•

Magnification glasses and lamps

•

SMT Soldering / Desoldering bench-top repair station

Test Equipment

The following is a

A personal PC (PC) with an Intel Pentium CPU of at least 200Mhz. 64meg memory,

Windows95®.

A monitor, keyboard and mouse.

Lexicon Studio Core2 system consisting of a Core2 PCI card, Connector Box and the

proprietary Lexicon cable to connect the Core2 and Connector Box (provided with the system).

Amplifier with speakers or headphones.

At least the following to perform the minimum I/O tests as signal source:

(1) CD player with both analog and digital (S/PDIF) inputs and outputs. Or,

(1) DAT machine with both analog and digital (S/PDIF) inputs and outputs. Or,

(1) Effects box with tone generator (e.g. preset 170 on MPX-1).

(1) Lexicon M300 (or other device for equivalent A/D and D/A conversion)

Cables: (dependent on your signal source)

(2) ¼ unbalanced single conductor to (whatever type connector your amp has) for analog

connections.

(2) RCA to RCA for digital in to digital out. For digital audio use 75Ω cable.

(2) Optical to Optical for digital in to digital out.

(1) low distortion analog oscillator

(1) analog distortion analyzer and level meter with 20kHz or 30kHz Lo Pass Filter

(1) 100 MHz oscilloscope

(1) digital distortion analyzer & digital function generator (e.g. Stanford Research Systems

Model DS360 or Audio Precision System 1 with DSP Option /System 2).

minimum

suggested equipment list required to perform the proof of performance tests.

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Lexicon

Chapter 2 General Information

Periodic Maintenance

Under normal conditions the Lexicon Studio Core2 system requires minimal maintenance. Use a soft, lintfree cloth slightly dampened with warm water and a mild detergent to clean the exterior surfaces of the connector box.

Do not use alcohol, benzene or acetone-based cleaners or any strong commercial cleaners.

using abrasive materials such as steel wool or metal polish. It the unit is exposed to a dusty environment, a vacuum or

low-pressure

blower may be used to remove dust from the unit's exterior.

Avoid

Ordering Parts

When ordering parts, identify each part by type, price and Lexicon Part Number. Replacement parts can be ordered from:

LEXICON, INC. 3 Oak Park Bedford, MA 01730-1441 Telephone: 781-280-0300; Fax: 781-280-0499; email: csupport@lexicon.com ATTN: Customer Service

Returning Units to Lexicon for Service

Before returning a unit for warranty or non-warranty service, consult with Lexicon Customer Service to determine the extent of the problem and to obtain Return Authorization. No equipment will be accepted without Return Authorization from Lexicon.

If Lexicon recommends that a Lexicon Studio Core2 be returned for repair and you choose to return the unit to Lexicon for service, Lexicon assumes no responsibility for the unit in shipment from the customer to the factory, whether the unit is in or out of warranty. All shipments must be well packed (using the original packing materials if possible), properly insured and consigned, prepaid, to a reliable shipping agent.

When returning a unit for service, please include the following information:

•

Name

•

Company Name

•

Street Address

•

City, State, Zip Code, Country

•

Telephone number (including area code and country code where applicable)

•

Serial Number of the unit

•

Description of the problem

•

Preferred method of return shipment

•

Return Authorization #, on both the inside and outside of the package

Please enclose a brief note describing any conversations with Lexicon personnel (indicate the name of the person at Lexicon) and give the name and telephone daytime number of the person directly responsible for maintaining the unit.

Return the Core2 board, connector box and cable. Do no include accessories such as manuals, audio cables, footswitches, etc. with the unit, unless specifically requested to do so by Lexicon Customer Service personnel.

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Chapter 3 Specifications

Analog Inputs

Connectors Impedance A/D Dynamic Range

Levels Sample Rates Frequency Response Crosstalk THD

< 0.005%, 20Hz to 20kHz

Resolution

Analog Outputs

Connectors Impedance D/A Dynamic Range

Levels Frequency Response Crosstalk THD

< 0.005%, 20 Hz to 20 kHz

Resolution

Unbalanced TS 1/4” Phone Jack

> 25kΩ

105dB typical, 20kHz bandwidth 107dB typical, A weighted

-18dBV to +14dBV full scale, adjustable

44.1kHz, 48kHz 20Hz to 20kHz ±0.5dB, ref 1 kHz

< -96dB @ 1kHz

24 Bits Delta-Sigma Conversion

Unbalanced TS 1/4” Phone Jack

150Ω nominal

100dB typical, 20kHz bandwidth 102 dB typical, A weighted

+ 8dBV, full scale

20Hz to 20kHz ±1dB, ref 1 kHz

< -96 dB @ 1 kHz

24 Bits Delta-Sigma Conversion

Lexicon

Digital Audio Interface

Input Connectors

Coaxial RCA (24-bit S/PDIF or TTL Word Clock) Optical (24 bit S/PDIF or 24 bit ADAT)

Output Connectors

Coaxial RCA (24 bit S/PDIF) Optical (24 bit S/PDIF or 24 bit ADAT)

Sample Rates Word Clock Sources

44.1 kHz, 48 kHz

ADAT, S/PDIF, external TTL Word Clock, or Internal

System Specifications

Computer Interface Internal Interface Power Requirements Clock Range FCC Rating Operating Temperature

Class B

33 MHz/32-bit PCI Master/Slave Interface

Option board connector

+5v ±5%

44.1 kHz ±2%, 48 kHz ±2%

30°-100°F (0°-40°C)

Bundled Software

Lexicon Drivers and Control Panel, Syntrillium Cool Edit Pro Specifications subject to change without notice.

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Lexicon

Chapter 4 Performance Verification

This section describes a quick verification of the operation of the Lexicon Core2 system and the integrity of its analog and digital audio signal paths. These tests should be performed without any programs running on the PC. Preferably, the tests should be run after a fresh start-up.

Test Overview:

These tests verify the analog and digital audio paths through the Core2 Connector Box and the Core2 Main board installed in the computer. The audio testing is preformed using the LexPanel.EXE program. The LexPanel provides multiple paths of audio routing so that in the event of a failure, the defective circuit can be located and repaired.

User Interface:

The LexPanel consists of three pages that are used for selecting the Audio Inputs, Audio Outputs, Sample Rate, Clock Source, etc. Double clicking on the LexPanel Icon in the lower right hand section of the task bar can access these pages. Each tab of the LexPanel can be accessed by using the mouse or via the function keys F5, F6 & F7.

F5 is for the Punch page F6 is for the Clock Source page F7 is for the Core2 page

Punch page:

The Punch page is used for selecting the Audio Inputs and Audio Outputs to be tested. The example below shows the Analog Input 1 (A/D 1) being routed to the Left S/PDIF Digital Output (S/PDIF Out L).

NOTE: The “ be enabled prior to the selection of the audio A/D input Sources and D/A output destinations.

Enable Punch

” checkbox must be selected, and the “

Monitor

” button (lower right) must also

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Lexicon Studio Core2 Service Manual

IMPORTANT: The LexPanel MUST be the focused (active) application in order for any audio to pass through the Core2 hardware.

Clock Source Page:

The Clock Source page is used for selecting the internal Sample Rate and audio Clock Source. The example below shows Source.

44100Hz

selected as the Sample Rate and

Internal

selected as the Clock

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Lexicon

Core2 Page:

The Core2 page is used for configuring audio routing. The example below shows the Analog Inputs, Outputs 1-4 & Outputs 5-8 and S/PDIF In & S/PDIF Out are enabled.

The “Core2” page (above) is also used for changing the settings of the Analog Input Level faders. There are four LED’s labeled the status of the jumpers W1-W8 on the Core2 Main board. All of the following tests are specified with the dbx circuits enabled and the jumpers installed at W5-8.

OFF (Dark Green) = dbx Disabled ON (Bright Green) = dbx Enabled

dbx 1-4

(located at the lower right of the LexPanel) that are used to monitor

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Lexicon Studio Core2 Service Manual

I/O Tests:

Analog In To Analog Out Audio Listening Test:

1. Connect the audio source (CD player, DAT, or effects box) Analog Output to the Analog Input marked #1 on the Core2 Connector Box.

2. Connect the analog output marked #1 of the Core2 Connector Box to your amplifier with speaker or headphone output. Be sure to turn the volume down on the amplifier.

3. Open the LexPanel by double clicking on the Lexicon Studio Icon.

4. Click on the Core2 tab to bring it forward. In the Routing area, activate the Analog Inputs, Analog Outputs 1-4, and Analog Outputs 5-8 buttons by clicking on each of them.

5. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

6. Click on the Clock Source tab to bring it forward. In the Clock Source menu, select Internal and set the Sample Rate to 44100.

7. Click on the Punch tab to bring it forward. To enable your Input Source and Output Destinations selected from the Core2 tab, make sure the enable punch check-box is selected (it will have a check in the box if enabled).

8. Hold the CTRL key down on the computer keypad, then in the Sources menu select all A/D inputs, 1-4.

9. Hold the CTRL key down and select all the D/A outputs, 1-8, in the Destinations menu.

10. Turn the volume up on the amplifier and make sure the audio is free from any audio defects (pops, clicks, static etc).

11. To test the remaining outputs, move the output cable from the #1 analog output to each of the remaining outputs 2-8 and test the audio as described above for audio defects.

12. To test the remaining inputs, move the input cable from the #1 analog input to each of the remaining inputs 2-4 and test the audio as described above in step 10.

Analog In To Digital Out Audio Listening Test:

1. Connect the audio source (CD player, DAT, or effects box) Analog Output to the Analog Input marked #1 on the Core2 Connector Box.

2. The digital output marked S/PDIF of the Core2 Connector Box needs to be connected to a device for D/A conversion back to an analog signal. Configure the device for Coax S/PDIF.

3. Connect the analog output of the D/A to your amplifier with speaker or headphone output. Be sure to turn the volume down on the amplifier.

4. Open the LexPanel by double clicking on the Lexicon Studio Icon.

5. Click on the Core2 tab to bring it forward. In the Routing area, activate the Analog Input and S/PDIF Out buttons by clicking on them. If the Optical S/PDIF box is enabled (checked), disable it.

6. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

7. Click on the Clock Source tab to bring it forward. In the Clock Source menu, select Internal and set the Sample Rate to 44100.

13. Click on the Punch tab to bring it forward. To enable your Input Source and Output Destinations selected from the Core2 tab, make sure the enable punch check-box is selected (it will have a check in the box if enabled).

8. Hold the CTRL key down on the computer keypad, then in the Sources menu, select all A/D inputs 1-4.

9. Hold the CTRL key down and select S/PDIF Out L and S/PDIF Out R in the Destinations menu.

10. Turn the volume up on the amplifier and make sure the audio is free from any audio defects (pops, clicks, static etc).

11. To test the remaining Inputs, move the input cable from the #1 analog input to each of the remaining inputs 2-4 and test the audio as described above.

12. The above test needs to be repeated for the S/PDIF Optical output connection of the Core2.

13. Disconnect the Coax S/PDIF Output.

14. Using optical cable connect the Optical Out on the back of the Core2 card to the D/A for conversion back to an analog signal as stated in Step 2 above.

15. In the Routing area activate the Optical S/PDIF Out by checking the Optical box.

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Lexicon

16. Repeat steps 10 and 11 to test audio quality.

Digital In To Digital Out Audio Listening Test:

1. Connect the audio source (CD player, DAT, or effects box) Digital Output to the Digital Input marked S/PDIF IN on the Core2 Connector Box.

2. The digital output marked S/PDIF of the Core2 Connector Box needs to be connected to a device for D/A conversion back to an analog signal. Configure the device for Coax S/PDIF.

3. Connect the analog output of the D/A to your amplifier with speaker or headphone output. Be sure to turn the volume down on the amplifier.

4. Open the LexPanel by double clicking on the Lexicon Studio Icon.

5. Click on the Core2 tab to bring it forward. In the Routing area, activate the S/PDIF In and S/PDIF Out buttons by clicking on each of them. If the Optical S/PDIF box is enabled (checked), disable it.

6. To activate your routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

7. Click on the Clock Source tab to bring it forward. In the Clock Source menu, select S/PDIF.

8. Click on the Punch tab to bring it forward. To enable your Input Source and Output Destinations selected from the Core2 tab, make sure the enable punch check-box is selected (it will have a check in the box if enabled).

9. Hold the CTRL key down on the computer keypad, then in the Sources menu, select S/PDIF In L and S/PDIF In R.

10. Hold the CTRL key down and select S/PDIF Out L and S/PDIF Out R in the Destinations menu.

11. Turn the volume up on the amplifier and make sure the audio is free from any audio defects (pops, clicks, static etc).

12. The above test needs to be repeated for the S/PDIF Optical connections of the Core2.

13. Disconnect the Coax S/PDIF input and output cables. Connect the Optical output cable from the Digital audio source to the Core2 Optical Input.

14. Using optical cables connect the Optical Out on the back of the Core2 card to the D/A for conversion back to an analog signal as stated in Step 2 above. Configure the device for Optical S/PDIF.

15. In the Routing area, activate the Optical S/PDIF In and S/PDIF Out by checking the Optical box.

16. Repeat step 11 to test audio quality

Digital Input To Analog Output Listening Test:

1. Connect the audio source (CD player, DAT, or effects box) Digital Output to the Digital Input marked S/PDIF IN on the of the Core2 Connector Box.

2. Connect the analog output marked #1 on the Core2 Connector Box to your amplifier with speaker or headphone output. Be sure to turn the volume down on the amplifier.

3. Open the LexPanel by double clicking on the Lexicon Studio Icon.

4. Click on the Core2 tab to bring it forward. In the Routing area, activate the S/PDIF In, Analog Outputs 14 and Outputs 5-8 buttons by clicking on each of them. If Optical is enabled (checked), disable it.

5. To activate your routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing..

6. Click on the Clock Source tab to bring it forward. In the Clock Source menu, select S/PDIF.

8. Hold the CTRL key down on the computer keypad, then in the Sources menu select S/PDIF In L and S/PDIF In R.

9. Hold the CTRL key down and select all the D/A outputs 1-8 in the Destinations menu.

10. Turn the volume up on the amplifier and make sure the audio is free from any audio defects (pops, clicks, static etc).

11. To test the remaining Outputs, move the output cable from #1 analog output to each of the remaining outputs 2-8 and test the audio, as described above, for audio defects.

12. The above test needs to be repeated for the S/PDIF Optical input connection of the Core2.

13. Disconnect the Coax S/PDIF input source.

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Lexicon Studio Core2 Service Manual

14. Using optical cable connect the Optical Output from the digital audio source to the Optical Input on the back of the Core2 card as described in Step 1 above.

15. In the Routing area, activate the Optical S/PDIF In by checking the Optical box.

16. Repeat steps 10 and 11 to test audio quality.

Gain Tests:

Analog In To Digital Out Gain Test:

The A-D Gain tests verify that audio is passed from the analog input under test to the digital output.

1. Apply a 1kHz signal @ +8dBv from the Analog Low Distortion Oscillator to the Analog Input marked #1 on the Core2 Connector Box.

2. Connect the digital output marked S/PDIF of the Core2 Connector Box to the Digital Distortion Analyzer

3. Open the LexPanel by double clicking on the Lexicon Studio Icon.

4. Click on the Core2 tab to bring it forward. In the Routing area, activate the Analog Inputs and S/PDIF Out buttons by clicking on it. If Optical is enabled (checked), disable it.

5. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

6. Click on the Clock Source tab to bring it forward. In the Clock Source menu, select Internal and set the Sample Rate to 44100.

8. Hold the CTRL key down on the computer keypad, then in the Sources menu, select all A/D inputs 1-4.

9. Hold the CTRL key down and select S/PDIF Out L and S/PDIF Out R in the Destinations menu.

10. Verify the digital output is –1.5dBFS, (+/-.5dBFS).

11. To test the remaining Inputs, move the input cable from the #1 analog input to each of the remaining inputs 2-4 and test for the audio spec as described above.

12. The above test needs to be repeated for the S/PDIF Optical output connection of the Core2.

13. Disconnect the Coax S/PDIF Output.

14. Using optical cable connect the Optical Output on the back of the Core2 card to the Digital Distortion Analyzer as stated in Step 2 above.

15. In the Routing area, activate the Optical S/PDIF Out by checking the Optical box.

16. Disconnect the Coax S/PDIF input and configure the D/A device for Optical S/PDIF.

17. Move the Audio Input cable back to the analog #1.

18. Repeat steps 10 and 11 to test for Gain specification.

Digital In To Analog Out Gain Test:

The D-A Gain tests verify that audio is passed from the digital input to the analog output.

1. Apply a 1kHz signal @ 0.0dBFS signal from the Digital Function Generator to the S/PDIF IN on the Core2 Connector Box.

2. Connect the analog output marked #1 on the Core2 Connector Box to the Analog Distortion Analyzer.

3. Open the LexPanel by double clicking on the Lexicon Studio Icon.

4. Click on the Core2 tab to bring it forward. In the Routing area, activate the S/PDIF In, Analog Outputs 14, and Output 5-8 buttons by clicking on each of them. If Optical is enabled (checked), disable it.

5. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

6. Click on the Clock Source tab to bring it forward. In the Clock Source menu select S/PDIF.

7. Click on the Punch tab to bring it forward. To enable your Input Source and Output Destinations selected from the Core2 tab, make sure the enable punch check-box is selected with a check.

8. Hold the CTRL key down on the computer keypad, then in the Sources menu S/PDIF In L and S/PDIF In R.

9. Hold the CTRL key down and select all the D/A outputs 1-8 in the Destinations menu.

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Lexicon

10. Verify the analog output is +7.6dBv (+/-1dBv).

11. To test the remaining Outputs, move the output cable from #1 analog output to each of the remaining outputs 2-8 and test for the audio spec as described above.

12. Disconnect the S/PDIF Coax Input.

13. The above test needs to be repeated for the S/PDIF Optical input connection of the Core2.

14. Disconnect the Coax S/PDIF input.

15. Using optical cable connect the Digital Function Generator to the Optical Input on the back of the Core2 card as described in Step 1 above.

16. In the Routing area, activate the Optical S/PDIF In by checking the Optical box.

17. Repeat step 10 and 11 to test for Gain specification.

Frequency Response:

Analog In To Digital Out Frequency Test:

These tests check the frequency response of the analog input under test to digital output path.

1. Apply a 1kHz signal @ +0dBv from the Analog Low Distortion Oscillator to the Analog Input marked #1 on the Core2 Connector Box.

2. Connect the digital output marked S/PDIF on the Core2 Connector Box to the Digital Distortion Analyzer.

3. Open the LexPanel by double clicking on the Lexicon Studio Icon.

4. Click on the Core2 tab to bring it forward. In the Routing area, activate the Analog Inputs and S/PDIF Out buttons by clicking on them. If Optical is enabled (checked), disable it.

5. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

6. Click on the Clock Source tab to bring it forward. In the Clock Source menu, select Internal and set the Sample Rate to 44100.

8. Hold the CTRL key down on the computer keypad then in the Sources menu, select all A/D inputs 1-4.

9. Hold the CTRL key down and select S/PDIF Out L and S/PDIF Out R in the Destinations menu.

10. Take a 0dB reference reading on the analyzer.

11. Sweep the Oscillator from 20Hz to 20kHz and verify the digital output remains at +/-.5 dBFS of the referenced reading.

12. To test the remaining Inputs, move the input cable from the #1 analog input to each of the remaining inputs 2-4 and test for the audio spec as described above.

13. The above test needs to be repeated for the S/PDIF Optical output connection of the Core2.

14. Disconnect the Coax S/PDIF Output.

15. Using optical cable connect the Optical Output on the back of the Core2 card to the Digital Distortion Analyzer as described in Step 2 above.

16. In the Routing area, activate the Optical S/PDIF Out by checking the Optical box.

17. Move the Audio Input cable back to the analog #1.

18. Repeat steps 10 - 12 and check the Frequency specification.

Digital In To Analog Out Frequency Test:

These tests check the frequency response of the digital input under test to analog output path.

1. Apply a 1kHz signal @ -1.0dBFS signal from the Digital Function Generator to the S/PDIF IN on the Core2 Connector Box.

2. Connect the analog output marked #1 on the Core2 Connector Box to the Analog Distortion Analyzer.

3. Open the LexPanel by double clicking on the Lexicon Studio Icon.

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Lexicon Studio Core2 Service Manual

5. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

6. Click on the Clock Source tab to bring it forward. In the Clock Source menu, select S/PDIF.

8. Hold the CTRL key down on the computer keypad then in the Sources menu S/PDIF In L and S/PDIF In R.

9. Hold the CTRL key down and select all the D/A outputs 1-8 in the Destinations menu.

10. Take a 0dB reference reading on the analyzer.

11. Sweep the Oscillator from 20Hz to 20kHz and verify the analog output is +/- 1dBr.

12. To test the remaining Outputs move the output cable from the #1 analog output to each of the remaining outputs 2-8 and test the audio as described above for audio defects.

13. The above test needs to be repeated for the S/PDIF Optical input connection of the Core2.

14. Disconnect the Coax S/PDIF input.

15. Using optical cable connect the Digital Function Generator to the Optical Input on the back of the Core2 card as described in Step 1 above.

16. In the Routing area activate the Optical S/PDIF by checking the Optical box.

17. Repeat step 10 and 12 and check for Frequency specification.

THD+N Measurement:

Analog In To Digital Out THD+N Test:

These tests check the THD+N of the analog input to digital output path.

1. Connect the Analog Low Distortion Oscillator to the Analog Input marked #1 on the Core2 Connector Box.

2. Connect the digital output marked S/PDIF on the Core2 Connector Box to the Digital Distortion Analyzer set to measure THD+N.

3. Open the LexPanel by double clicking on the Lexicon Studio Icon.

4. Click on the Core2 tab to bring it forward. In the Routing area activate the Analog Inputs and S/PDIF Out buttons by clicking on them. If Optical is enabled (checked), disable it.

5. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

6. Click on the Clock Source tab to bring it forward. In the Clock Source menu select Internal and set the Sample Rate to 44100.

8. Hold the CTRL key down on the computer keypad. In the Sources menu, select all A/D inputs 1-4.

9. Hold the CTRL key down and select S/PDIF Out L and S/PDIF Out R in the Destinations menu.

10. Apply the signal frequencies and levels as indicated in the table below and verify that the digital output is within spec (< 0.005%). Do not take measurements while sweeping of frequencies. Set the level and frequency and take each measurement independently.

Frequency (Hz) 20k 10k 6k 1k 100 20 Input Level (dBv) -5.00 -5.00 -5.00 -3.00 -3.00 -3.00

11. To test the remaining Inputs, move the input cable from the #1 analog input to each of the remaining inputs 2-4 and test for the audio spec as described above.

12. The above test needs to be repeated for the S/PDIF Optical output connection of the Core2.

13. Disconnect the Coax S/PDIF Output.

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Lexicon

14. Using optical cable, connect the Optical Output on the back of the Core2 card to the Digital Distortion Analyzer.

15. In the Routing area, activate the Optical S/PDIF Out by checking the Optical box.

16. Move the Audio Input cable back to the analog #1.

17. Repeat steps 10 and 11 and check for THD+N specification.

Digital In To Analog Out THD+N Test:

These tests check the THD+N of the digital input to analog output path.

1. Apply a 1kHz signal @ -1.0dBFS signal from the Digital Function Generator to the S/PDIF IN on the Core2 Connector Box.

2. Connect the analog output marked #1 on the Core2 Connector Box to the Analog Distortion Analyzer set to measure THD+N.

3. On the Analyzer, engage the 20Hz to 20kHz audio bandpass filters.

4. Open the LexPanel by double clicking on the Lexicon Studio Icon.

5. Click on the Core2 tab to bring it forward. In the Routing area, activate the S/PDIF In, Analog Outputs 14, and Output 5-8 buttons by clicking on each of them. If Optical is enabled (checked), disable it.

6. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

7. Click on the Clock Source tab to bring it forward. In the Clock Source menu, select S/PDIF.

9. Hold the CTRL key down on the computer keypad, then in the Sources menu, select S/PDIF In L and S/PDIF In R.

10. Hold the CTRL key down and select all the D/A outputs 1-8 in the Destinations menu.

11. Sweep the Oscillator from 20Hz to 20kHz and verify the analog output is < .005%.

12. To test the remaining Outputs move the output cable from the #1 analog output to each of the remaining outputs, 2-8, test for the audio spec as described above.

13. The above test needs to be repeated for the S/PDIF Optical input connection of the Core2.

14. Disconnect the Coax S/PDIF input.

15. Using optical cable connect the Digital Function Generator to the Optical Input on the back of the Core2 card as described in Step 1 above.

16. In the Routing area, activate the Optical S/PDIF by checking the Optical box.

17. Repeat step 11 and 12 and check for THD+N specification.

Crosstalk Tests:

The crosstalk tests measure the amount of signal that bleeds through from one channel to the other.

Analog In To Digital Out Crosstalk Test:

1. Apply a 1kHz signal @ +8.0dBv from the Analog Low Distortion Oscillator to the Analog Input marked #2 on the Core2 Connector Box.

2. Connect the digital output marked S/PDIF on the Core2 Connector Box to the Digital Distortion Analyzer.

3. Open the LexPanel by double clicking on the Lexicon Studio Icon.

4. Click on the Core2 tab to bring it forward. In the Routing area, activate the Analog Inputs and S/PDIF Out buttons by clicking on them. If Optical is enabled (checked), disable it.

5. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

6. Click on the Clock Source tab to bring it forward. In the Clock Source menu, select Internal and set the Sample Rate to 44100.

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Lexicon Studio Core2 Service Manual

8. In the Sources menu, select A/D 1.

9. Hold the CTRL key down and select S/PDIF Out L and S/PDIF Out R in the Destinations menu.

10. Verify the digital output is < -96dBFS.

11. Apply a 1kHz signal to the #3 analog input.

12. Set Sources in the Punch menu to A/D 4 and S/PDIF Out R.

13. Verify the digital output is < - 96dBFS.

14. The above test needs to be repeated for the S/PDIF Optical input connection of the Core2.

15. Disconnect the Coax S/PDIF input.

16. Using optical cable connect the Optical Output on the back of the Core2 card to the Digital Distortion Analyzer.

17. In the Routing area, activate the Optical S/PDIF Out by checking the Optical box.

18. Repeat steps 8-13 and verify the crosstalk specification.

Digital In To Analog Out Crosstalk Test:

1. Apply a 1kHz signal @ 0.0dBFS signal from the Digital Function Generator to the S/PDIF IN on the Core2 Connector Box.

2. Connect the analog output marked #1 on the Core2 Connector Box to the Analog Distortion Analyzer.

3. On the Analyzer, engage the 20Hz to 20kHz audio bandpass filters.

4. Open the LexPanel by double clicking on the Lexicon Studio Icon.

6. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

7. Click on the Clock Source tab to bring it forward. In the Clock Source menu select S/PDIF.

9. In the Sources menu, select S/PDIF In L.

10. Hold the CTRL key down and select D/A outputs 1, 3, 5, 7 in the Destinations menu.

11. Verify that all even analog outputs (2, 4, 6, 8) are < -96dB.

12. Select all of the even D/A outputs (2, 4, 6, 8).

13. Verify that all odd analog outputs (1, 3, 5, 7) are < -96dB.

14. The above test needs to be repeated for the S/PDIF Optical input connection of the Core2.

15. Disconnect the Coax S/PDIF input.

16. Using optical cable connect the Digital Function Generator to the Optical Input on the back of the Core2 card as described in Step 1 above.

17. In the Routing area, activate the Optical S/PDIF In by checking the Optical box.

18. Repeat steps 10 - 13 and test Crosstalk specification.

Dynamic Range Tests:

Analog In To Digital Out Dynamic Range Test:

1. Apply a 1kHz signal @ +8dBv from the Analog Low Distortion Oscillator to the Analog Input marked #1 on the Core2 Connector Box.

2. Connect the digital output marked S/PDIF of the Core2 Connector Box to the Digital Distortion Analyzer

3. Open the LexPanel by double clicking on the Lexicon Studio Icon.

4. Click on the Core2 tab to bring it forward. In the Routing area, activate the Analog Inputs and S/PDIF Out buttons by clicking on them. If Optical is enabled (checked), disable it.

5. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

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Lexicon

6. Click on the Clock Source tab to bring it forward. In the Clock Source menu select Internal and set the Sample Rate to 44100.

8. Hold the CTRL key down on the computer keypad then in the Sources menu Select all A/D inputs 1-4.

9. Hold the CTRL key down and select S/PDIF Out L and S/PDIF Out R in the Destinations menu.

10. Take a 0dB reference reading on the analyzer.

11. Turn off the Oscillator.

12. Verify the digital output is < -105dBFS (typical).

13. To test the remaining Inputs, move the input cable from the #1 analog input to each of the remaining inputs 2-4 and test for the audio spec as described above.

14. The above test needs to be repeated for the S/PDIF Optical output connection of the Core2.

15. Disconnect the Coax S/PDIF output.

16. Using optical cable connect the Optical Output on the back of the Core2 card to the Digital Distortion Analyzer.

17. In the Routing area, activate the Optical S/PDIF Out by checking the Optical box.

18. Move the Audio Input cable back to the analog #1

19. Repeat steps 10 - 12 and verify the indicated output level.

Digital In To Analog Out Signal to Noise Test:

1. Apply a 1kHz signal @ 0.0dBFS signal from the Digital Function Generator to the S/PDIF IN on the Core2 Connector Box.

2. Connect the analog output marked #1 of the Core2 Connector Box to the Analog Distortion Analyzer.

3. On the Analyzer engage the 20Hz to 20kHz audio bandpass filters.

4. Open the LexPanel by double clicking on the Lexicon Studio Icon.

6. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

7. Click on the Clock Source tab to bring it forward. In the Clock Source menu select S/PDIF.

9. Hold the CTRL key down on the computer keypad then in the Sources menu S/PDIF In L and S/PDIF In R.

10. Hold the CTRL key down and select all the D/A outputs 1-8 in the Destinations menu.

11. Take a 0dB reference reading on the analyzer.

12. Turn off the Oscillator.

13. Verify the analog output is < -100dB (typical).

14. To test the remaining Outputs, move the output cable from #1 analog output to each of the remaining outputs 2-8 and test for the audio spec as described above.

15. The above test needs to be repeated for the S/PDIF Optical input connection of the Core2.

16. Disconnect the Coax S/PDIF input.

17. Using optical cable connect the Optical Input on the back of the Core2 card as described in Step 1 above.

18. In the Routing area, activate the Optical S/PDIF by checking the Optical box.

19. Repeat step 11 - 13 and verify the indicated output level.

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Lexicon Studio Core2 Service Manual

DBX THD+N Tests:

Analog In To Digital Out DBX THD+N Test:

These tests check the THD+N characteristics of the analog input to digital output path with the “dbx” saturation circuit enabled (jumpers at W5-W8 on the Core2 Main board).

1. Apply a 1kHz signal @ +5dBv from the Analog Low Distortion Oscillator to the Analog Input marked #1 on the Core2 Connector Box.

2. Connect the digital output marked S/PDIF of the Core2 Connector Box to the Digital Distortion Analyzer set to measure THD+N.

3. Open the LexPanel by double clicking on the Lexicon Studio Icon.

4. Click on the Core2 tab to bring it forward. In the Routing area, activate the Analog Inputs and S/PDIF Out buttons by clicking on them. If Optical is enabled (checked), disable it.

5. To activate your Routing selections, click on the Apply button, if it is flashing. There is no need to click the Apply button if it is not flashing.

6. Click on the Clock Source tab to bring it forward. In the Clock Source menu select Internal and set the Sample Rate to 44100.

8. Hold the CTRL key down on the computer keypad, then in the Sources menu Select all A/D inputs 1-4.

9. Hold the CTRL key down and select S/PDIF Out L and S/PDIF Out R in the Destinations menu.

10. Verify the digital output is between 0.25% and 3.00% (1.35% typical ). Refer to the graph at the end of this section for DBX characteristics.

11. To test the remaining Inputs, move the input cable from the #1 analog input to each of the remaining inputs 2-4 and test for the audio spec as described above.

12. The above test needs to be repeated for the S/PDIF Optical output connection of the Core2.

13. Disconnect the Coax S/PDIF Output.

14. Using optical cable connect the Optical Output on the back of the Core2 card to the Digital Distortion Analyzer.

15. In the Routing area, activate the Optical S/PDIF Out by checking the Optical box.

16. Move the Audio Input cable back to the analog #1.

17. Repeat steps 10 and 11 and check for THD+N specification.

DBX Characteristics

H D

-0

-0 +8+1 +2 +3 +4 +5 +6 +7

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Upper Trace

"dbx" Enabled

(W5-W8)

Lower Trace

"dbx" Disabled

(W1-W4)

Input Amplitude dBV

Lexicon Audio Precision ATE Summary

Lexicon

Gnd / Typical Upper Lower Program Source/ Source/ Sample

Source Analyzer Switcher Module Midiman DigitPatch 12X6

All Tests = 25 OHM, Unbal All Tests = Imp. 100K, 44.1kHz/48kHz Sample Rate CX=COAX OP=OPTICAL

Upper Limit File Lower Limit File Sweep File Imported Registry File Left Right Float Freq (Hz) Level Measure Reading Limit Limit Band A Input B Input A Output B Output Number Target Target Rate

A-D S/PDIF FILES

A-D Input 1

AD_44_IN1_SPDIF_COAX_GAIN AD_44_SPDIF_COAX_GAIN_UPPER AD_44_SPDIF_COAX_GAIN_LOWER ----------------------------------------AD_44_IN1_SPDIF_COAX_LEFT 8.00dBv ------------ Gnd 997 dBFS Amplitude -1.20 -0.24 -2.36 ------------OFF OFF 1 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN1_SPDIF_COAX_FREQ_RESP AD_44_SPDIF_COAX_FREQ_RESP_UPPER AD_44_SPDIF_COAX_FREQ_RESP_LOWER ----------------------------------------AD_44_IN1_SPDIF_COAX_LEFT 0.00dBv ------------ Gnd 20-20K dBFS Amplitude 0.00 0.56 -0.56 ------------OFF OFF 1 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN1_SPDIF_COAX_THD+N AD_44_SPDIF_COAX_THD+N_UPPER AD_44_SPDIF_COAX_THD+N_LOWER AD_44_SPDIF_THD+N AD_44_IN1_SPDIF_COAX_LEFT -3.00/-5.00dBv------------ Float 20-20K % THD+N 0.0025 0.005 0.0007 ------------OFF OFF 1 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN1_SPDIF_COAX_XTALK AD_44_SPDIF_COAX_GAIN_XTALK_UPPER AD_44_SPDIF_COAX_GAIN_XTALK_LOWER ----------------------------------------AD_44_IN1_SPDIF_COAX_LEFT ------------ 8.00dBv Gnd 997 dBFS Amplitude -100 -94.94 -140 ------------OFF OFF 2 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN1_SPDIF_COAX_DYN_RNG AD_44_SPDIF_COAX_DYN_RNG_UPPER AD_44_SPDIF_COAX_DYN_RNG_LOWER ----------------------------------------AD_44_IN1_SPDIF_COAX_LEFT -60dBv ------------ Float 997 dBFS Amplitude -106.5 -101.94 -140 ------------OFF OFF 1 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN1_SPDIF_COAX_DBX AD_44_SPDIF_COAX_DBX_UPPER AD_44_SPDIF_COAX_DBX_LOWER ----------------------------------------AD_44_IN1_SPDIF_COAX_LEFT 5.00dBv ------------ Gnd 997 % THD+N 1.35 3.00 0.25 ------------OFF OFF 1 OFF 20 CX6/OP1 ------------44.1kHz Int

A-D Input 2

AD_44_IN2_SPDIF_COAX_GAIN AD_44_SPDIF_COAX_GAIN_UPPER AD_44_SPDIF_COAX_GAIN_LOWER ----------------------------------------AD_44_IN2_SPDIF_COAX_RIGHT 8.00dBv ------------ Gnd 997 dBFS Amplitude -1.20 -0.24 -2.36 ------------OFF OFF 2 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN2_SPDIF_COAX_FREQ_RESP AD_44_SPDIF_COAX_FREQ_RESP_UPPER AD_44_SPDIF_COAX_FREQ_RESP_LOWER ----------------------------------------AD_44_IN2_SPDIF_COAX_RIGHT 0.00dBv ------------ Gnd 20-20K dBFS Amplitude 0.00 0.56 -0.56 ------------OFF OFF 2 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN2_SPDIF_COAX_THD+N AD_44_SPDIF_COAX_THD+N_UPPER AD_44_SPDIF_COAX_THD+N_LOWER AD_44_SPDIF_THD+N AD_44_IN2_SPDIF_COAX_RIGHT -3.00/-5.00dBv------------ Float 20-20K % THD+N 0.0025 0.005 0.0007 ------------OFF OFF 2 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN2_SPDIF_COAX_GAIN_XTALK AD_44_SPDIF_COAX_GAIN_XTALK_UPPER AD_44_SPDIF_COAX_GAIN_XTALK_LOWER ----------------------------------------AD_44_IN2_SPDIF_COAX_RIGHT 8.00dBv ------------ Gnd 997 dBFS Amplitude -100 -94.94 -140 ------------OFF OFF 1 OFF 20 CX6/OP1 ------------44.1kHz Int

APPENDIX: D CORE2 ATE TEST SUMMARY

AD_44_IN2_SPDIF_COAX_DYN_RNG AD_44_SPDIF_COAX_DYN_RNG_UPPER AD_44_SPDIF_COAX_DYN_RNG_LOWER ----------------------------------------AD_44_IN2_SPDIF_COAX_RIGHT -60dBv ------------ Float 997 dBFS Amplitude -106.5 -101.94 -140 ------------OFF OFF 2 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN2_SPDIF_COAX_DBX AD_44_SPDIF_COAX_DBX_UPPER AD_44_SPDIF_COAX_DBX_LOWER ----------------------------------------AD_44_IN2_SPDIF_COAX_RIGHT 5.00dBv ------------ Gnd 997 % THD+N 1.35 3.00 0.25 ------------OFF OFF 2 OFF 20 CX6/OP1 ------------44.1kHz Int

A-D Input 3

AD_44_IN3_SPDIF_OPTO_GAIN AD_44_SPDIF_OPTO_GAIN_UPPER AD_44_SPDIF_OPTO_GAIN_LOWER ----------------------------------------AD_44_IN3_SPDIF_OPTO_LEFT 8.00dBv ------------ Gnd 997 dBFS Amplitude -1.20 -0.24 -2.36 ------------OFF OFF 3 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN3_SPDIF_OPTO_FREQ_RESP AD_44_SPDIF_OPTO_FREQ_RESP_UPPER AD_44_SPDIF_OPTO_FREQ_RESP_LOWER ----------------------------------------AD_44_IN3_SPDIF_OPTO_LEFT 0.00dBv ------------ Gnd 20-20K dBFS Amplitude 0.00 0.56 -0.56 ------------OFF OFF 3 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN3_SPDIF_OPTO_THD+N AD_44_SPDIF_OPTO_THD+N_UPPER AD_44_SPDIF_OPTO_THD+N_LOWER AD_44_SPDIF_THD+N AD_44_IN3_SPDIF_OPTO_LEFT -3.00/-5.00dBv------------ Float 20-20K % THD+N 0.0025 0.005 0.0007 ------------OFF OFF 3 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN3_SPDIF_OPTO_XTALK AD_44_SPDIF_OPTO_GAIN_XTALK_UPPER AD_44_SPDIF_OPTO_GAIN_XTALK_LOWER ----------------------------------------AD_44_IN3_SPDIF_OPTO_LEFT ------------ 8.00dBv Gnd 997 dBFS Amplitude -100 -94.94 -140 ------------OFF OFF 4 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN3_SPDIF_OPTO_DYN_RNG AD_44_SPDIF_OPTO_DYN_RNG_UPPER AD_44_SPDIF_OPTO_DYN_RNG_LOWER ----------------------------------------AD_44_IN3_SPDIF_OPTO_LEFT -60dBv ------------ Float 997 dBFS Amplitude -106.5 -101.94 -140 ------------OFF OFF 3 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN3_SPDIF_OPTO_DBX AD_44_SPDIF_OPTO_DBX_UPPER AD_44_SPDIF_OPTO_DBX_LOWER ----------------------------------------AD_44_IN3_SPDIF_OPTO_LEFT 5.00dBv ------------ Gnd 997 % THD+N 1.35 3.00 0.25 ------------OFF OFF 3 OFF 22 CX6/OP1 ------------44.1kHz Int

A-D Input 4

AD_44_IN4_SPDIF_OPTO_GAIN AD_44_SPDIF_OPTO_GAIN_UPPER AD_44_SPDIF_OPTO_GAIN_LOWER ----------------------------------------AD_44_IN4_SPDIF_OPTO_RIGHT 8.00dBv ------------ Gnd 997 dBFS Amplitude -1.20 -0.24 -2.36 ------------OFF OFF 4 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN4_SPDIF_OPTO_FREQ_RESP AD_44_SPDIF_OPTO_FREQ_RESP_UPPER AD_44_SPDIF_OPTO_FREQ_RESP_LOWER ----------------------------------------AD_44_IN4_SPDIF_OPTO_RIGHT 0.00dBv ------------ Gnd 20-20K dBFS Amplitude 0.00 0.56 -0.56 ------------OFF OFF 4 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN4_SPDIF_OPTO_THD+N AD_44_SPDIF_OPTO_THD+N_UPPER AD_44_SPDIF_OPTO_THD+N_LOWER AD_44_SPDIF_THD+N AD_44_IN4_SPDIF_OPTO_RIGHT -3.00/-5.00dBv------------ Float 20-20K % THD+N 0.0025 0.005 0.0007 ------------OFF OFF 4 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN4_SPDIF_OPTO_XTALK AD_44_SPDIF_OPTO_GAIN_XTALK_UPPER AD_44_SPDIF_OPTO_GAIN_XTALK_LOWER ----------------------------------------AD_44_IN4_SPDIF_OPTO_RIGHT 8.00dBv ------------ Gnd 997 dBFS Amplitude -100 -94.94 -140 ------------OFF OFF 3 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN4_SPDIF_OPTO_DYN_RNG AD_44_SPDIF_OPTO_DYN_RNG_UPPER AD_44_SPDIF_OPTO_DYN_RNG_LOWER ----------------------------------------AD_44_IN4_SPDIF_OPTO_RIGHT -60dBv ------------ Float 997 dBFS Amplitude -106.5 -101.94 -140 ------------OFF OFF 4 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN4_SPDIF_OPTO_DBX AD_44_SPDIF_OPTO_DBX_UPPER AD_44_SPDIF_OPTO_DBX_LOWER ----------------------------------------AD_44_IN4_SPDIF_OPTO_RIGHT 5.00dBv ------------ Gnd 997 % THD+N 1.35 3.00 0.25 ------------OFF OFF 4 OFF 22 OP4/OP1 ------------44.1kHz Int

A-D Input Level Control Tests

AD_44_IN1_SPDIF_COAX_INLVL_CUT AD_44_SPDIF_COAX_INLVL_CUT_UPPER AD_44_SPDIF_COAX_INLVL_CUT_LOWER ----------------------------------------AD_44_IN1_SPDIF_COAX_INLVL_CUT 8.00dBv ------------ Gnd 997 dBFS Amplitude 20.00 -18.94 -21.06 ------------OFF OFF 1 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN2_SPDIF_COAX_INLVL_CUT AD_44_SPDIF_COAX_INLVL_CUT_UPPER AD_44_SPDIF_COAX_INLVL_CUT_LOWER ----------------------------------------AD_44_IN2_SPDIF_COAX_INLVL_CUT ------------ 8.00dBv Gnd 997 dBFS Amplitude 20.00 -18.94 -21.06 ------------OFF OFF 2 OFF 20 CX6/OP1 ------------44.1kHz Int

AD_44_IN3_SPDIF_OPTO_INLVL_CUT AD_44_SPDIF_OPTO_INLVL_CUT_UPPER AD_44_SPDIF_OPTO_INLVL_CUT_LOWER ----------------------------------------AD_44_IN3_SPDIF_OPTO_INLVL_CUT 8.00dBv ------------ Gnd 997 dBFS Amplitude 20.00 -18.94 -21.06 ------------OFF OFF 3 OFF 22 OP4/OP1 ------------44.1kHz Int

AD_44_IN4_SPDIF_OPTO_INLVL_CUT AD_44_SPDIF_OPTO_INLVL_CUT_UPPER AD_44_SPDIF_OPTO_INLVL_CUT_LOWER ----------------------------------------AD_44_IN4_SPDIF_OPTO_INLVL_CUT ------------ 8.00dBv Gnd 997 dBFS Amplitude 20.00 -18.94 -21.06 ------------OFF OFF 4 OFF 22 OP4/OP1 ------------44.1kHz Int

D-A S/PDIF FILES

D-A S/PDIF Coax Output 1

DA_44_SPDIF_COAX_OUT1_GAIN DA_44_SPDIF_COAX_GAIN_UPPER DA_44_SPDIF_COAX_GAIN_LOWER ----------------------------------------DA_44_SPDIF_COAX_OUT1 0.00dBFS ------------ ------ 997 dBV Amplitude +7.60 +8.66 +6.54 ------------1 OFF OFF OFF 21 OP1/CX6 ------------44.1kHz Ext

DA_44_SPDIF_COAX_OUT1_THD+N DA_44_SPDIF_COAX_THD+N_UPPER DA_44_SPDIF_COAX_THD+N_LOWER ----------------------------------------DA_44_SPDIF_COAX_OUT1 -1.00dBFS ------------ ------997 % THD+N 0.002 0.005 0.0007 20-20K 1 OFF OFF OFF 21 OP1/CX6 ------------44.1kHz Ext

D-A S/PDIF Coax Output 2

DA_44_SPDIF_COAX_OUT2_GAIN DA_44_SPDIF_COAX_GAIN_UPPER DA_44_SPDIF_COAX_GAIN_LOWER ----------------------------------------DA_44_SPDIF_COAX_OUT2 ------------ 0.00dBFS ------ 997 dBV Amplitude +7.60 +8.66 +6.54 ------------2 OFF OFF OFF 21 OP1/CX6 ------------44.1kHz Ext

DA_44_SPDIF_COAX_OUT2_THD+N DA_44_SPDIF_COAX_THD+N_UPPER DA_44_SPDIF_COAX_THD+N_LOWER ----------------------------------------DA_44_SPDIF_COAX_OUT2 ------------ -1.00dBFS ------ 997 % THD+N 0.002 0.005 0.0007 20-20K 2 OFF OFF OFF 21 OP1/CX6 ------------44.1kHz Ext

D-A S/PDIF Opto Odd Output

DA_44_SPDIF_OPTO_ODD_GAIN DA_44_SPDIF_OPTO_GAIN_UPPER DA_44_SPDIF_OPTO_GAIN_LOWER ----------------------------------------DA_44_SPDIF_OPTO_ODD_OUT 0.00dBFS ------------ ------ 997 dBV Amplitude +7.60 +8.66 +6.54 ------------1,3,5,7 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

DA_44_SPDIF_OPTO_ODD_FREQ_RESP DA_44_SPDIF_OPTO_FREQ_RESP_UPPER DA_44_SPDIF_OPTO_FREQ_RESP_LOWER ----------------------------------------DA_44_SPDIF_OPTO_ODD_OUT -1.00dBFS ------------ ------ 20-20K dBr Amplitude 0.00 -1.06 +1.06 ------------1,3,5,7 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

DA_44_SPDIF_OPTO_ODD_THD+N DA_44_SPDIF_OPTO_THD+N_UPPER DA_44_SPDIF_OPTO_THD+N_LOWER DA_44_SPDIF_OPTO_THD+N DA_44_SPDIF_OPTO_ODD_OUT -1.00dBFS ------------ ------ 20-20K % THD+N 0.002 0.005 0.0007 20-20K 1,3,5,7 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

DA_44_SPDIF_OPTO_ODD_DYN_RNG DA_44_SPDIF_OPTO_DYN_RNG_UPPER DA_44_SPDIF_OPTO_DYN_RNG_LOWER ----------------------------------------DA_44_SPDIF_OPTO_ODD_OUT -60dBFS ------------ ------ 997 dBr Amplitude -100.00 -95.94 -140 20-20K 1,3,5,7 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

DA_44_SPDIF_OPTO_ODD_XTALK DA_44_SPDIF_OPTO_XTALK_UPPER DA_44_SPDIF_OPTO_XTALK_LOWER ----------------------------------------DA_44_SPDIF_OPTO_EVEN_OUT ------------ 0.00dBFS ------ 997 dB Amplitude -99.50 -94.94 -140 20-20K 1,3,5,7 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

D-A S/PDIF Opto Even Output

DA_44_SPDIF_OPTO_EVEN_GAIN DA_44_SPDIF_OPTO_GAIN_UPPER DA_44_SPDIF_OPTO_GAIN_LOWER ----------------------------------------DA_44_SPDIF_OPTO_EVEN_OUT ------------ 0.00dBFS ------ 997 dBV Amplitude +7.60 +8.66 +6.54 ------------2,4,6,8 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

DA_44_SPDIF_OPTO_EVEN_FREQ_RESP DA_44_SPDIF_OPTO_FREQ_RESP_UPPER DA_44_SPDIF_OPTO_FREQ_RESP_LOWER ----------------------------------------DA_44_SPDIF_OPTO_EVEN_OUT ------------ -1.00dBFS ------ 20-20K dBr Amplitude 0.00 -1.06 +1.06 ------------2,4,6,8 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

DA_44_SPDIF_OPTO_EVEN_THD+N DA_44_SPDIF_OPTO_THD+N_UPPER DA_44_SPDIF_OPTO_THD+N_LOWER DA_44_SPDIF_OPTO_THD+N DA_44_SPDIF_OPTO_EVEN_OUT ------------ -1.00dBFS ------ 20-20K % THD+N 0.002 0.005 0.0007 20-20K 2,4,6,8 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

DA_44_SPDIF_OPTO_EVEN_DYN_RNG DA_44_SPDIF_OPTO_DYN_RNG_UPPER DA_44_SPDIF_OPTO_DYN_RNG_LOWER ----------------------------------------DA_44_SPDIF_OPTO_EVEN_OUT ------------ -60dBFS ------ 997 dBr Amplitude -100.00 -95.94 -140 20-20K 2,4,6,8 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

DA_44_SPDIF_OPTO_EVEN_XTALK DA_44_SPDIF_OPTO_XTALK_UPPER DA_44_SPDIF_OPTO_XTALK_LOWER ----------------------------------------DA_44_SPDIF_OPTO_ODD_OUT 0.00dBFS ------------ ------ 997 dB Amplitude -99.50 -94.94 -140 20-20K 2,4,6,8 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

D-A Clock Range

DA_44_SPDIF_OPTO_CLK_RNG_LOWER DA_44_SPDIF_OPTO_CLK_RNG_UPPER DA_44_SPDIF_OPTO_CLK_RNG_LOWER DA_44_SPDIF_OPTO_CLK_RNG DA_44_SPDIF_OPTO_CLK_RNG ------------ 0.00dBFS ------ 86.436K % THD+N 0.002 0.005 0.0007 20-20K 2 OFF OFF OFF 23 OPT1/OP4 ------------44.1kHz Ext

DA_48_SPDIF_OPTO_CLK_RNG_UPPER DA_48_SPDIF_OPTO_CLK_RNG_UPPER DA_48_SPDIF_OPTO_CLK_RNG_LOWER DA_48_SPDIF_OPTO_CLK_RNG DA_48_SPDIF_OPTO_CLK_RNG ------------ 0.00dBFS ------ 97.920K % THD+N 0.002 0.005 0.0007 20-20K 2 OFF OFF OFF 23 OPT1/OP4 ------------48kHz Ext

A-D ADAT FILES

D-A ADAT FILES

A-D ADAT Optical Output

AD_48_IN1_ADAT_OUT1_GAIN AD_48_IN1_ADAT_OUT1_GAIN_UPPER AD_48_IN1_ADAT_OUT1_GAIN_LOWER ----------------------------------------AD_48_IN1_ADAT_OUT1 8.00dBv ------------ Gnd 997 dBFS Amplitude -1.30 -0.36 -2.24 ------------OFF OFF 1 OFF 24 OP4/OP3 OP2/OP1 48kHz Int

AD_48_IN1_ADAT_OUT1_THD AD_48_IN1_ADAT_OUT1_THD_UPPER AD_48_IN1_ADAT_OUT1_THD_LOWER ----------------------------------------AD_48_IN1_ADAT_OUT1 0.00dBv ------------ Float 997 % THD+N 0.004 0.010 0.0007 ------------OFF OFF 1 OFF 24 OP4/OP3 OP2/OP1 48kHz Int

A-D WORD CLOCK

D-A ADAT Optical Output 1

DA_48_ADAT_OPTO_OUT1_GAIN DA_48_ADAT_OPTO_GAIN_UPPER DA_48_ADAT_OPTO_GAIN_LOWER ----------------------------------------DA_48_ADAT_OPTO_OUT 0.00dBFS ------------ ------997 dBV Amplitude +7.60 +8.66 +6.54 ------------1 OFF OFF OFF 25 OPT1/OP2 OP3/OP4 48kHz Ext

DA_48_ADAT_OPTO_OUT1_THD+N DA_48_ADAT_OPTO_THD+N_UPPER DA_48_ADAT_OPTO_THD+N_LOWER ----------------------------------------DA_48_ADAT_OPTO_OUT -1.00dBFS ------------ ------ 997 % THD+N 0.0025 0.005 0.0007 20-20K 1 OFF OFF OFF 25 OPT1/OP2 OP3/OP4 48kHz Ext

A-D S/PDIF Coax Word Clock

AD_48_IN1_SPDIF_COAX_WORD_CLK AD_48_IN1_SPDIF_COAX_WORD_CLK_UPPER AD_48_IN1_SPDIF_COAX_WORD_CLK_LOWER ----------------------------------------AD_48_SPDIF_COAX_WORD_CLK -5.00dBv ------------ Float 997 % THD+N 0.003 0.005 0.0007 ------------OFF OFF 1 OFF 26 CX6/OP1 OP1/OP 2 48kHz Ext

Jim Fabiano, David Saganey File: CR2ATER1.xls 11/12/1999

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Lexicon

Chapter 5 Troubleshooting

Check the Lexicon web site for the latest software and information:

http://www.lexicon.com

The Lexicon Studio downloads page:

http://www.lexicon.com/downloads/studio_download.htm

The Lexicon Support Knowledgebase: http://www.lexicon.com/kbase/kbase.asp

Installation

Lexicon Studio Installation Troubleshooting

If after installing Lexicon Studio drivers and restarting your computer your computer boots with the message: 'Core32 or Core2 not installed' or 'not working properly', go to http://www.lexicon.com/downloads/studio_download.htm and download Core2 PC V1.20 Patch: C2V120P3.exe.

If, when attempting to launch the Lexicon Control Panel for Core2, it flashes for a second and then minimizes, go to http://www.lexicon.com/downloads/studio_download.htm#Core2SP2 and download the file C2V120P2.reg. Double click on the file, let it run, then restart your computer.

1. Make sure Lexicon is not sharing an IRQ with anything other than IRQ Holder for PCI Steering. If it is, try moving the Lexicon card to another PCI slot. To check for IRQ sharing, go to the Start menu and select Settings, Control Panel. Double click to open the System control panel. Go to the Device Manager and double click on Computer. Look for Lexicon IDS Sound System in the list of devices. Take note of what IRQ it is on. Check to see if there is anything else using that IRQ (it is okay for it to share with IRQ Holder for PCI Steering). If Lexicon IDS Sound System is sharing an IRQ, try moving the card to another PCI slot. Then check the IRQ again. If you are unable to get Lexicon onto its own IRQ, give Lexicon Tech Support a call at 781-280-0300 or email: csupport@lexicon.com

2. Go to the Start Menu. Select settings, Control Panel. Double-click on MultiMedia. Go to the devices tab [Advanced if using Windows 95]. Look under audio devices. Double-click on Audio for Lexicon Studio Wave Device. Check the status. It should say drivers enabled and active. If it does not, restart the computer. Note - Check again and restart again if not enabled.

3. If you are experiencing pops, clicks, or random crashes, try turning the video acceleration on the graphics card down to none.

4. Turn Read Ahead optimization to None in the Windows(r) File system properties control panel.

5. From the Troubleshooting tab in the Windows(r) File System properties select Disable write-behind caching for all drives (put a check mark beside it).

6. Use a separate drive or partition for audio. Defragment all hard drives regularly.

7. Run scandisk.exe or other disk utility regularly.

8. Disable screen savers, background applications that aren't needed for audio, disable virus protection software while using an audio application (re-enable it whenever you are downloading files from the internet, receiving email, or inserting disks into your machine).

Lexicon Studio Core2: Complete Uninstall and re-installation directions

Question: I want to start a fresh installation of Lexicon Studio Core2. How do I completely uninstall and then, reinstall Lexicon Studio on a PC?

Answer: The instructions are as follows: Note: This procedure is recommended when you have re-installed the drivers a couple of times on their own. People often forget to un-install before they re-install and end up with multiple entries for Lexicon

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Lexicon Studio Core2 Service Manual

Studio causing potentially severe problems. To ensure a clean install do the following. WARNING THE FOLLOWING INCLUDES EDITING YOUR REGISTRY, PROCEED WITH CAUTION. DO NOT PERFORM THESE STEPS WITHOUT SUPERVISION IF YOU ARE NOT FAMILIAR WITH THESE PROCEDURES.

1. Before going through this procedure, make a backup of your Registry. To do this go to your START menu and click on Run. In the dialog box type "regedit" (without the quotation marks), then click OK. On the Registry menu, click Export Registry File. In the Export Range area, click All to back up your entire registry. Name the file "Registry backup" and put it on your desktop. Now close out of Regedit.

2. Go into your Control Panel, double click System, then click on the Device Manager tab. Click the plus sign in the box next to Sound, Video and Game Controllers. Highlight the Lexicon IDS Sound System and click on REMOVE.

3. Close System properties box.

4. Go into your Control Panel, double click Add/Remove Programs. Select the "Lexicon Studio for Core2" and click on REMOVE. Select Custom removal. For each screen that comes up, click "Select All" then Next. On the third screen that comes up you will see that one of the selections reads as follows: C:\Program Files\Steinberg\Cubase VST24\Vstplugins (or something very similar, depending on the version of Cubase that you have installed. The main thing is that it ends with Vstplugins). De-select that entry (otherwise you will remove your entire VST plug ins folder!). Click Finish when the last list has been selected.

5. To make sure that we have a complete removal run REGEDIT and check the following. Note: You may not find these items, but if you do delete them.

6. To do this go to your START menu and click on RUN.

7. In the dialog box type "regedit" (without the quotation marks), then click OK.

8. In the registry click on the box next to HKEY_LOCAL_MACHINE.

9. Click on the box next to ENUM.

10. Then click on the box next to PCI.

11. Look for VEN_1057&DEV_1801. Highlight this folder and delete it.

12. Next, still under HKEY_LOCAL_MACHINE, go down and click on the box next to SYSTEM.

13. Then click on the box next to CURRENTCONTROLSET.

14. Then click on the box next to SERVICES.

15. Then click on the box next to CLASS.

16. Then click on the box next to MEDIA. There you will see a folder or folders with a series of 4 numbers. Click on each folder until you find the one (or ones) for Lexicon IDS Sound System (in right hand pane). Delete the folder.

17. Then click on the box next to HKEY_CURRENT_USER.

18. Click on the box in front of SOFTWARE, then highlight the Lexicon folder and delete it.

19. Next, click on the box next to HKEY_LOCAL_MACHINE.

20. Click on the box in front of SOFTWARE.

21. Then click on the box in front of ASIO, highlight Lexicon Studio for Core2 and delete it.

22. Close out of Regedit.

23. If you are running Windows95 version A go to C:\Windows\INF. (we are not registered with Microsoft so Windows 95 renames the inf file to OEMx (x being some number, depending on how many nonregistered OEM devices you have installed). If you have more than one you will need to open the OEMx files with Wordpad. When you find the Lexicon IDSCore2 inf file, delete it. Also, delete the IDS.vxd file found under C:\WINDOWS\SYSTEM.

24. If you are running Windows95 version B, C, or Windows98, go to C:\WINDOWS\INF\OTHER and delete all files referencing Lexicon. Also, delete the IDS.vxd file found under C:\WINDOWS\SYSTEM.

Reboot your computer and Windows® should find new hardware and ask you if you want to install it. Follow the installation Wizard.

1. A dialog box called Update Device Driver Wizard will appear saying "This wizard will complete the installation of PCI multimedia device...". At this point insert the CDROM labeled Lexicon Studio Software. Then click on NEXT. Windows will start to search the CDROM for drivers. Sometimes Windows will attempt to search for the drivers in a location other than the CDROM. If that occurs, when

5-2

Lexicon

the dialog stating that Windows could not find a driver appears, click on the Browse button and browse to the proper location.

2. Then a dialog box will appear telling you that, "Windows found the following updated driver for this device, Lexicon IDS Sound System". Click on Finish. Windows will usually have trouble copying the first file. If this happens, click Browse and browse to the correct location (the CDROM). Then click OK and Windows will continue copying the files.

3. When Windows® is finished loading the drivers, you will be prompted to restart your computer. You should choose not to restart. Windows® will prompt you twice - select no at both prompts and proceed with these instructions.

Running Setup.exe®

1. Insert the Lexicon Studio CDROM.

2. Double-click on Setup.exe to launch the installer.

3. Click Next at the Installshield Welcome screen.

4. Click Next through all subsequent windows.

5. Click Finish to complete setup.

6. Restart your computer (even if you've already restarted after installing the Core2 drivers).

Lexicon Studio Core2: sharing IRQ or no resources assigned. Change BIOS

Problem: Core2 does not get an IRQ assigned to it. Get message "Core32 not installed or not working properly".

Solution: Download and install C2V120P3.exe patch from the Support/Downloads area of the Lexicon web site: http://www.lexicon.com/downloads/studio_download.htm#c2v120p3

Don't forget to download and read C2V120P3 instructions.txt: Installation instructions for C2V120P3.exe:

1. Download the file to your desktop

2. Double click on the file

3. At the first screen click Next

4. At the second screen click Next

5. At the third screen click Next

6. At the fourth screen click Finish

7. Restart your computer

8. Go through the rest of the steps outlined in the Installation Troubleshooting document (you can download

it from http://www.lexicon.com/downloads/studio_download.htm)

V1.20 Release Notes

LEXICON STUDIO V1.20 ADDENDUM ====================================================================

This file contains information that could not be included in the User's Manual before shipping the current version of the Core2 card. The following topics are discussed (by category):

LexPanel issues:

Addendum #1: NEW USER INTERFACE FEATURES Addendum #2: AUXILIARY SENDS AND RETURNS Addendum #3: TEXT ENTRY OF FADER VALUES Addendum #4: LEVEL ON EXTERNAL OUTPUT WHEN CLOSING LEXPANEL

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Lexicon Studio Core2 Service Manual

Cubase issues:

Addendum #5: ROUTING IN CUBASE Addendum #6: PUNCH ROUTING IN CUBASE Addendum #7: CLOCK SOURCE CONSISTENCY IN CUBASE

Wave (Multimedia I/O) issues:

Addendum #8: THE EFFECT OF ROUTING CHANGES ON WAVE DRIVERS Addendum #9: SELECTION OF WINDOWS SOUNDS Addendum #10: CLOCK SOURCE SELECTION IN MMIO Addendum #11: MMIO BUS ALIGNMENT IN ACID AND COOL EDIT PRO

Samplitude issues:

Addendum #12: NOISES THAT OCCUR AFTER SHUTDOWN OF SAMPLITUDE

Other issues:

Addendum #13: S/PDIF EFFECTS LOOP

In addition, at the end of this file there is a list of errors in the User's Manual that were detected at the last minute.

=====================================================================

Addendum #1: NEW USER INTERFACE FEATURES

<MESSAGES> A message will warn the user that undesirable noise could occur if input channels are opened from an audio group that does not conform to the selected clock source.

Example: S/PDIF inputs routed with an Internal clock source will cause a warning message to appear.

NOTE: clock source warning message will appear based on the currently open input channels, regardless of which channels are currently routed (an open input channel is a channel playing audio). When the monitor button is active, however, all routed channels are open, and not just those channels selected for punch. Therefore, you might receive a warning message that pertains to input channels that you do not actually intend to use, just because the monitor button is selected.

<GREEN LEDS & CHECKBOX OPTIONS> Indicate whether or not there is a valid clock source and sample rate. The two check boxes allow the user the option to turn on/off the pop-up messages about lost and regained word clock, as well as changes in the sample rate (which is now displayed for the user's reference). The messages are there purely for the user's convenience. Core-2 will lock and change sample-rates without the user hitting OK.

<CLOCK SOURCE LIST> Certain clock source selections will not be available based on the current I/O routing.

5-4

Example: Routed S/PDIF inputs disallow selection of WC RCA and ADAT data clock sources. Routed ADAT inputs disallow the selection of S/PDIF clock source.

=====================================================================

Addendum #2: AUXILIARY SENDS AND RETURNS

The Auxiliary Send / Return selections in the Core-2 Tab are not available in V1.20 These selections have been placed here for future upgrades, and are not connected to anything.

NOTE: If the Auxiliary selections are enabled, 4 digital streams will be not be available for audio. Until these upgrades are made available, please leave the auxiliaries in the panel disabled.

=====================================================================

Addendum #3: TEXT ENTRY OF FADER VALUES

Lexicon

If you type in a value under the Mix output fader or the analog input faders, audio level will update with the text entry in real time. Please lower speaker levels when entering levels in these text boxes, or use the faders on the panel instead.

=====================================================================

Addendum #4: LEVEL ON EXTERNAL OUTPUT WHEN CLOSING LEXPANEL

Sometimes when closing the LexPanel you may notice constantly high level of an inaudible DC signal on S/PDIF input of your digital mixer. To eliminate this DC signal, send audio to the S/PDIF output or close the LexPanel.

=====================================================================

Addendum #5: ROUTING IN CUBASE

When a song or arrangement is saved in Cubase, all bus and FX settings are also stored. If changes are made to the Routing tab in the Lexicon control panel, Cubase will see the ASIO driver as a new device and clear all the bus and FX settings that were saved. Because of this, it is a good idea to make a note of which I/O streams you were using when you saved your song and to reset the Routing tab to match this configuration before reloading the song. In this way you can avoid manually rerouting audio and effects.

=====================================================================

Addendum #6: PUNCH ROUTING IN CUBASE

When using an ASIO application (such as Cubase), the available

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Lexicon Studio Core2 Service Manual

sources and destinations of Punch are those which are enabled (active) in Cubase. If, for example, you wish to route audio from the Core2 A/D 1&2 to the Core2 D/A 1&2 you must activate the corresponding input and output bus in Cubase. The Lexicon control panel must be exited, then re-launched each time a change is made to Cubase's active streams list.

When using the Wave drivers, if the Monitor button is turned on all channels will be available for selection in the Punch and Reverb source/destination lists. When the wave audio application is in play, only the channels that it is using will be available to Punch and Reverb routing. The same applies if the audio application has been configured so that it keeps its audio channels open even when it is in stop (see the specific application's User Guide for details on how to set this up). When there is no audio application running, or the application is in "stop" and has not been configured to keep the audio channels open, all channels will be available to punch routing.

=====================================================================

Addendum #7: CLOCK SOURCE CONSISTENCY IN CUBASE

Whenever changing the clock source setting within Cubase, it is a good practice to verify that the identical setting is selected in the LexPanel clock source tab at that time. Any differences in these settings could result in undesirable static. If such a condition should occur, simply invoke the LexPanel from the task bar, and Lexicon Studio will internally correct this problem.

=====================================================================

Addendum #8: THE EFFECT OF ROUTING CHANGES ON WAVE DRIVERS

If you are using the Wave drivers and make any changes to the Routing Tab in the Lexicon control panel, you MUST restart Windows in order to have these changes take effect. If the ASIO drivers are being used, it is not necessary to restart Windows. Simply quit then re-launch the audio application in order for the routing changes to take effect. If you are using Cubase, for example, and see that some of the Input or Output buses have a blank label, this is an indication that the application must be restarted. If you are using Cubase and have launched the Lexicon control panel from the Windows Taskbar, Cubase must be quit before changes can be made to the Routing tab.

Note: at least one Input pair and one Output pair must be enabled in order to launch Cubase. If no streams are active an error message will come up saying that the ASIO Lexicon Studio Core-2 1.2 driver could not be loaded. If this occurs, quit Cubase, launch the LexPanel from the Windows Taskbar, turn on one or more I/O streams, then re-launch Cubase.

=====================================================================

5-6

Addendum #9: SELECTION OF WINDOWS SOUNDS

As a high-performance audio card, the Core2 is designed for use with sample rates of 44.1 kHz and 48.0 kHz frequencies. Because most wave files that are installed with the Windows operating system are formatted at the 22 kHz or 11 kHz sampling rate, the Core2 may not play such wave files in a desirable fashion. It is recommended that you assign the PC's native sound card to the task of playing Windows sounds by making it the "preferred" device in the Multimedia Control Panel applet. In that way, there will be no conflicts while Windows sounds are being played, even while you are using the Core2 in an audio application.

=====================================================================

Addendum #10: CLOCK SOURCE SELECTION IN MMIO

After changing the clock source from the LexPanel, be sure to shut down then re-start any applications that are using wave audio at the time. This action will guarantee that the application correctly recognizes the current clock source selection.

Lexicon

=====================================================================

Addendum #11: MMIO BUS ALIGNMENT IN ACID AND COOL EDIT PRO

It has been observed that occasionally the first output bus can be out of alignment with the rest of the output buses in Acid and Cool Edit Pro. This seems to be setting related: adjusting the number and size of the audio playback buffers can help fix the problem. Another work around is to put 2 dummy tracks at the top of your arrangement and assign them to some outputs that you are not using. =====================================================================

Addendum #12: NOISES THAT OCCUR AFTER SHUTDOWN OF SAMPLITUDE

It has been found that in order to release channels in SAMPLITUDE for Lexpanel or other applications to use, the "Close all audio devices" selection must be selected before quitting the Samplitude audio application. If this is not done manually by you prior to shutdown, an undesirable noise might result.

=====================================================================

Addendum #13: S/PDIF EFFECTS LOOP

It is possible to use the Core2 as the sample clock master in an S/PDIF effects loop. In this configuration the Core2 S/PDIF output is sent to external effects gear and output from this gear drives the Core2 S/PDIF input. The Core is set to be the sample clock master for the S/PDIF interface by selecting the internal oscillators or the ADAT input. The external effects gear should be set to derive the sample clock from the S/PDIF input or alternately from a sample clock source

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Lexicon Studio Core2 Service Manual

that is synchronized to the Core2. In this configuration we recommend muting the S/PDIF inputs to the Core2 before connecting or disconnecting the S/PDIF input to the Core2 to avoid clicks while monitoring. When the Core2 is set up to derive its sample clock from the S/PDIF input this precaution is not necessary since the S/PDIF input is automuted when the input cable is disconnected.

=====================================================================

CORE2 USER'S GUIDE ERRATA

All references to "Cool Edit Pro" should be "Cool Edit Pro SE"

Page 5: Referencing the ADAT connectors, ADAT IN is closest to the

DB-25 connector.

Page 9: At the end of the installation procedure, step #7 instructs

you to "cold boot" your computer even though the message that appears simply asks you to restart. In fact, a "warm boot" or simple restart is all that is required.

Page 11: The statement that sample rate is selectable from the

LexPanel is not accurate. On the clock source page, the current sample rate is displayed but not selectable.

Page 12: The note at the bottom of the page refers to an error message

that pertains to ASIO Lexicon Studio v4.20 (for the Core32).

Page 17: Change "Punch from the LSI-10T A/D 1&2 to LDI-10T D/A 1&2" to

"Punch from the Core2 A/D 1&2 to Core2 D/A 1&2"

Page 18: Figure does not accurately represent Clock Source Tab.

V1.20-P1 Update

Recent Core2 Update - V120-p1.exe

http://www.lexicon.com/downloads/studio_download.htm#Core2SP1

The current update is an improvement that addresses Addendum #7: CLOCK SOURCE CONSISTENCY IN CUBASE.

Currently, after launching Cubase, unexpected clock sources may appear in the Cubase clock source dialog. It is possible that when selecting the desired clock, "static noise" may appear on system output. This latest update prevents the output of this static noise.

Installing this update is very simple. Just follow the instructions below or contact Lexicon customer support for assistance.

1. Right click on the Lexicon Studio icon at the task bar and select. Shut down LexPanel.

2. Next, invoke Close Program by simultaneously pressing Ctrl/Alt/Delete on the keyboard. Select ASERVICE and click on "End Task". Wait 5 - 10 seconds then press "END TASK".

3. Next, Double click on the V120-P1 icon.

4. Make sure that the file is going to be placed in the proper directory named C:\lxstudio and click on Unzip. (It should already default to C:\lxstudio.)

5. Restart the system

5-8

===================================================================== Addendum #7: CLOCK SOURCE CONSISTENCY IN CUBASE

=====================================================================

Lexicon Studio Core2: Update patch v120-P1 won't unzip properly

Problem: Update patch v120-P1 won't unzip properly. Tells you that the file is locked or in use.

Solution: (This solution has worked in some cases).

1. Remove Core2 from Add/Remove programs

2. Remove Lexicon IDS Sound System from Device Manager

3. Remove LexiconIDSCORE2.INF from C:\Windows\Inf\Other

4. Restart computer and re-install drivers. DO NOT RESTART after running the Setup program.

5. Unzip the update patch (it should go to C:\Lxstudio

6. Restart the computer

Lexicon

C2V120P2.reg - Update

http://www.lexicon.com/downloads/studio_download.htm#Core2SP2

Once downloaded, follow these instructions:

1. Move C2V120P2.reg to your desktop.

2. Double-click on icon and let it run.

3. Restart your computer.

The Lexpanel should now launch. If you continue to have problems, please contact Lexicon Customer Service Technical Support.

Lexicon Studio Core2: In Cubase®, the LexPanel does not get properly shut down from the task bar.

While in Cubase®, the LexPanel does not get properly shut down from the task bar.

Q: What is the condition?

A: When attempting to Launch the LexPanel from the task bar, the hour glass appears briefly then disappears with no resulting action.

Q: What is the cause?

A: This is a result of hitting Cancel at the "Lexicon Studio Control Panel Selection" prompt.

Q: What is the solution?

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Lexicon Studio Core2 Service Manual

A: While running in ASIO mode, always select the LexPanel from the Cubase system dialog. If you have encountered this problem, the remedy is to invoke "CLOSE PROGRAM" by pressing Cntrl/Alt/Delete simultaneously on the keyboard. Next, select Lexpanel and click on end task.

LexPanel is now ready to be launched from the task bar. However, you must remember that if you are in ASIO mode, it is best to launch LexPanel from the Cubase system dialog. This technique will help to ensure proper LexPanel operation.

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Lexicon

Chapter 6 Theory of Operation

Architectural Overview

The Core2 is a 28 channel hard disk recorder card for PCI-bus based PC/Windows and Macintosh computers. It is capable of 44.1K, 48K, 88.2K, and 96K sample rates, but only 44.1K and 48K will be supported at first customer ship. The Core2 has a daughterboard connector to support the MP-100 reverb processor.

The Core2 features four major circuit sections: DSP56301, Xilinx XCS10 FPGA, A/D conversion, and D/A conversion. A Motorola 66 MHz DSP56301 microprocessor provides the PCI interface and the audio move engine. This device controls the flow of audio data between the PCI bus (for disk storage/playback) and the A/D converters, D/A converters, and the FPGA. The Xilinx FPGA is used to implement 8 channels of ADAT I/O and stereo S/PDIF I/O. It is also used to create an I2S receiver interface from the MP-100 reverb daughter board. The A/D conversion section is comprised of two stereo A/D converters (AK5383), two stereo volume control I.C.s (CS3310), and dBx type 4 tape saturation emulation. DBx type 4 is a soft knee limiter that provides 4 dB of headroom extension and also simulates the effect of analog tape compression. The D/A conversion section has four stereo D/A converters (AK4324) which drive single ended –10 dBV outputs. The analog and S/PDIF connectors are mounted in an external breakout box which is connected to the Core2 card with a cable. The ADAT optical connectors are mounted at the PCI card edge. A block diagram of the Core2 is shown in the following figure.

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Lexicon Studio Core2 Service Manual

Core2 Block Diagram

Analog In

CH 1

CH 2

. . .

(Dev Only)

AD_CH12

AD_CH34

ADAT IN

SPDIF RCA IN

FPGA

BOOT

ROM

Input Level

Control

CS3310

FPGA

XCS10

ADAT

SPDIF

DSP

M56301

SampleClk

RefClk

DA_CH12 - SDATA

DA_CH34

DA_CH56

DA_CH78

DBX Type-4

PLL

MP100 Effects

MasterClk

AK5383

96K-S/s

24bits

D/A

AK4324

A/D

AD_CH12

SDATA

ADAT OUT

SPDIF RCA OUT

Analog Out

CH 1

CH 2

. . .

DSP

BOOT

ROM

PCI Bus

6-2

Lexicon

Startup Sequence

At power-up the DSP56301 (U23, sheet 1) is held in the reset state by the RC network comprised of R122 and C129. Once the voltage across C129 reaches 2V the DSP56301 will exit the reset state and read its bootup program from the Boot PROM (U24, sheet 2). If the bootup procedure completes successfully then the clock measured on R142 will be 66 MHz. If the DSP56301 failed to boot correctly this clock will be 3 MHz. After the DSP 56301 has completed its bootup procedure it waits for a startup program to be sent through the PCI interface (P1, sheet 4). Upon receipt of this program from the host computer the DSP56301 programs the FPGA (U27, sheet 2). The DSP56301 programs the FPGA with the signals CCLK, PROGRAM/, and FPGA_DIN. Once the FPGA has been programmed it turns on the FPGA_DONE LED (labeled “A”). At this point the DSP56301 is running a program from its internal memory and LEDs “B” and “C” are under software control.

DSP56301 (schematic sheet 1.)

The DSP56301 operates at 3.3V which is provided by a local regulator (U26, sheet 10). The DSP56301 is clocked from an external 6 MHz crystal (Y1, sheet 1) and the on-chip PLL is used to generate a 66 MHz clock.

The DSP 56301 provides an integrated interface to the PCI bus including all the configuration and address mapping registers. Both PCI master and slave modes are used. The Core2 is a Universal PCI bus card, which means that the card will operate in a 5V PCI signaling environment or a 3.3V PCI signaling environment. This is accomplished by providing the PCI I/O power pins to the 56301 on a dedicated voltage clamp pin (pin 137). The DSP 56301 integrates a 6-channel DMA controller that performs memory-tomemory (including memory-mapped peripherals) transfers in parallel with other DSP operations. Some of these channels are used to move samples between the PCI FIFOs to the DSP's internal memory while other channels move samples to and from the FPGA.

The Core2 uses the DSP56301 timer 0 to measure the frequency of the audio sample clock. The signal DSP_WCLK is sent from the FPGA to the DSP56301 for this purpose. The DSP data and address buses are connected to the FPGA and are used to transmit audio samples between the DSP56301 and the FPGA. The DSP56301 has internal address decoders that are used to generate the AA0/, AA1/, and AA2/ chip select signals. These address decodes are shown in the following five tables. The address decoder for AA0/ is programmed differently for 48K/44.1K vs. 96K/88.2K mode.

DSP 56301 Expansion Port Memory Map (AA1, AA2 chip selects)

Chip Select Address

AA2 $20000B SPDIF RX Channel Status byte 1 AA2 $20000A SPDIF RX Channel Status byte 0 AA2 $200009 SPDIF TX Channel Status byte 3 AA2 $200008 SPDIF TX Channel Status byte 0 AA2 $200007 not used AA2 $200006 not used AA2 $200005 A/D Right Channel Volume Control Register AA2 $200004 A/D Left Channel Volume Control Register AA2 $200003 System Status Register AA2 $200002 Word Clock Phase Control Register AA2 $200001 System Control Register 1 AA2 $200000 System Control Register 0 AA2 $D00400 - $FFFFFF not used AA2 $D00000 - $D003FF Boot ROM Program

Resource

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Lexicon Studio Core2 Service Manual

AA2 $000000 - $CFFFFF not used

DSP 56301 Expansion Port Memory Map (AA0 chip select, 48K/44.1K mode)

Chip Select Address Resource

AA0 $100027-100029 SPDIF Right Channel sample #2 (DMA only)

not used

AA0 $100024-100026

AA0 $100021-100023 SPDIF Right Channel sample #1 (DMA only) AA0 $10001E-100020 SPDIF Left Channel sample #1 (DMA only) AA0 $10001B-10001D Reverb Right Channel (DMA only) AA0 $100018-10001A Reverb Left Channel (DMA only) AA0 $100015-100017 ADAT Channel 8 (DMA only) AA0 $100012-100014 ADAT Channel 7 (DMA only) AA0 $10000F-100011 ADAT Channel 6 (DMA only) AA0 $10000C-10000E ADAT Channel 5 (DMA only) AA0 $100009-10000B ADAT Channel 4 (DMA only) AA0 $100006-100008 ADAT Channel 3 (DMA only) AA0 $100003-100005 ADAT Channel 2 (DMA only) AA0 $100000-100002 ADAT Channel 1 (DMA only)

SPDIF Left Channel sample #2 (DMA only)

used

not

DSP 56301 Expansion Port Memory Map (AA0 chip select, 96K/88.2K mode 1)

Chip Select Address Resource

AA0 $100021-100023 SPDIF Right Channel (DMA only) AA0 $10001E-100020 SPDIF Left Channel (DMA only) AA0 $10001B-10001D Reverb Right Channel (DMA only) AA0 $100018-10001A Reverb Left Channel (DMA only) AA0 $100009-10000B ADAT Channel 4 (DMA only) AA0 $100006-100008 ADAT Channel 3 (DMA only) AA0 $100003-100005 ADAT Channel 2 (DMA only) AA0 $100000-100002 ADAT Channel 1 (DMA only)

DSP 56301 Expansion Port Memory Map (AA0 chip select, 96K/88.2K mode 2)

Chip Select Address Resource

AA0 $100021-100023 SPDIF Right Channel (DMA only) AA0 $10001E-100020 SPDIF Left Channel (DMA only) AA0 $10001B-10001D Reverb Right Channel (DMA only) AA0 $100018-10001A Reverb Left Channel (DMA only) AA0 $100009-10000B ADAT Channel 8 (DMA only) AA0 $100006-100008 ADAT Channel 7 (DMA only) AA0 $100003-100005 ADAT Channel 6 (DMA only) AA0 $100000-100002 ADAT Channel 5 (DMA only)

6-4

Lexicon

DSP 56301 Expansion Port Memory Map (AA0 chip select, 96K/88.2K mode 3)

Chip Select Address Resource

AA0 $100015-100017 ADAT Channel 8 (DMA only) AA0 $100012-100014 ADAT Channel 7 (DMA only) AA0 $10000F-100011 ADAT Channel 6 (DMA only) AA0 $10000C-10000E ADAT Channel 5 (DMA only) AA0 $100009-10000B ADAT Channel 4 (DMA only) AA0 $100006-100008 ADAT Channel 3 (DMA only) AA0 $100003-100005 ADAT Channel 2 (DMA only) AA0 $100000-100002 ADAT Channel 1 (DMA only)

DSP 56301 ESSI Ports

The DSP56301 has two Enhanced Synchronous Serial Interface (ESSI) ports which are used to send I2S format serial digital data to the D/A converters and the MP-100 daughterboard and to receive I2S data from the A/D converters. The ESSI ports are set up as shown in the following two tables:

DSP 56301 ESSI Port C Register

Port Bit Number Signal Name Function In/Out Active State

0 SCOPE_TRIG (for development only) Output 1 DA_CH56 DAC channels 5 & 6 Output 2 ESSI0_SYNC ESSI port 0 frame sync Input high 3 ESSI0_CLK Shift clock for ESSI 0 port Input 4 AD_CH12 ADC channels 1 & 2 Input 5 DA_CH12 DAC channels 1 & 2 Output -

DSP 56301 ESSI Port D Register

Port Bit Number Signal Name Function In/Out Active State

0 LEX_DIN Reverb daughterboard I2S signal Output 1 DA_CH78 DAC channels 7 & 8 Output 2 ESSI1_SYNC ESSI port 1 frame sync Input high 3 ESSI1_CLK Shift clock for ESSI 1 port Input 4 AD_CH34 ADC channels 3 & 4 Input 5 DA_CH34 DAC channels 3 & 4 Output -

XCS10 FPGA (schematic sheet 2.)

The XCS10 Field Programmable Gate Array (FPGA) is a static RAM-based logic device that is used on the Core2 to implement ADAT digital I/O and S/PDIF I/O. It also contains logic that interfaces to the serial control ports of the input level control I.C.s, counters for the phase-locked loop, an I2S receiver interface from the MP-100 daughterboard, and DMA control logic for moving samples between the DSP56301 and the FPGA.

This device is programmed with one of several programs that are chosen by the user, depending on the I/O configuration that is selected through the Lexicon Control Panel which runs on the host computer. The FPGA may be programmed at any time by the DSP56301 to accommodate different I/O configurations. Also shown on schematic sheet 2 are the crystal oscillators (Y2, Y3, and U28) which are used to generate the on-board sample clocks.

6-5

Lexicon Studio Core2 Service Manual

U25 (QS3245) is used to limit the data bus signal levels sensed by the DSP56301 to 3.3V. The diode (D23) in series with the VCC pin of U25 presents a VCC of 4.3V to the QS3245. The FPGA has control and status registers that are used by the DSP56301 to control the functionality of the Core2. These registers are described in the following tables.

System Control Register 0

Number

7 96K_88.2K 96K/88.2K mode select High 6 IRQ B enable enable 96K interrupt (IRQB) High 5 IRQ A enable enable 48K/44.1K interrupt (IRQA) High 4 SYSTEM_LED software controlled system LED High 3 - not used 2 - not used 1 DMA_RESET reset for the FPGA DMA control state machine High 0 SMUTE DAC mute signal for channels 1 - 8 High

Signal Name Function Active

System Control Register 1

Number

7 SPDIF conn. Select high = RCA low = opto 6 Opto out mux high = SPDIF low = ADAT 5 Volume xmit 3,4 channels 3,4 volume control shift out enable high 4 Volume xmit 1,2 channels 1,2 volume control shift out enable high 3 DIAG_LED Software controlled diagnostic LED high 2 wclk sel 2 Encoded word clock mux select bit 2 (see

1 wclk sel 1 Encoded word clock mux select bit 1 (see

0 wclk sel 0 Encoded word clock mux select bit 0 (see

Signal Name Function Active

State

table below)

Word clock source encoding

Hex value Encoded Sample Rate

7 ADAT optical input 6 SPDIF 5 not used 4 not used 3 not used 2 external word clock (on SPDIF input connector) 1 On-card oscillator (88.2K,44.1K) 0 on-card oscillator (96K,48K)

6-6

System Status Register

Lexicon

Number

7 - not used 6 - not used 5 - not used 4 - not used 3 ADSAT4 DBX type 4 compression is active on channels 7&8 High 2 ADSAT3 DBX type 4 compression is active on channels 5&6 High 1 ADSAT2 DBX type 4 compression is active on channels 3&4 High 0 ADSAT1 DBX type 4 compression is active on channels 1&2 High

Signal

Name

SPDIF TX Channel Status byte 3

Number

7 not used 6 not used 5 not used 4 not used 3 Encoded sampling frequency bit 3 see table below 2 Encoded sampling frequency bit 2 see table below

Encoded sampling frequency bit 1 see table below

0 Encoded sampling frequency bit 0 see table below

Function Active State

SPDIF sample rate encoding

Hex value Encoded Sample Rate

4 -15 Not used

3 32 KHz 2 48 KHz 1 Not used 0 44.1 KHz

Sample Clock Phase-Locked Loop (schematic sheet 3.)

The TLC2932 PLL I.C. (U30) is used to create a 256FS sample clock that is synchronized with an audio word clock that may be derived from a number of sources. These sources are multiplexed in the FPGA and sent to the PLL as the SAMP_REF signal. The INT_REF signal is the VCO256 signal divided by 256. The PLL loop filter is comprised of R157, R159, C142, and C144. The 78L05 (U29) voltage regulator is used to provide a stable 5V supply for the TLC2932 PLL. U22 is used as a clock driver, and U21 is a QS3245 powered through a diode which is used to limit the signals with “LV” suffixes to 3.3V logic levels.

PCI & Option Connectors (schematic sheet 4.)

All of the signals of the PCI interface (P1) are connected only to the DSP56301 with the exception of power and ground pins . The Option connector (J2) is used to attach an MP-100 daughterboard. The Once port emulator connector (J3) is only used for development.

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Lexicon Studio Core2 Service Manual

Audio I/O & Connectors (schematic sheet 5.)

The S/PDIF serial output signal (SPDIG_OUT) is buffered by U22 and AC coupled to become the SPDIF_OUT signal which is sent to the connector box. The AC coupled SPDIF_IN signal is buffered and amplified by U28 which presents the SPDIG_IN signal to the FPGA. The SPDIF input on the Core2 can also accept a TTL wordclock signal to synchronize the Core2 to an external wordclock source. CP1 is the optical receiver for ADAT data, and it may also be used to receive optical SPDIF data. CP2 is the optical transmitter for ADAT data, and it may also be used to transmit optical S/PDIF data.

A/D Conversion (schematic sheet 6.)

The following description applies to the first A/D conversion channel. The other three channels work in exactly the same manner. The single-ended analog audio input is received as CH1_IN, scaled by R9 and R13, and buffered by U1 (4580). The buffered input is then sent to the Input Level Control (U3). The gain of the output of this device (AOUTL) is controlled by software. The serial control interface of this device is the signals ADVC_CLK, ADVC_SDIN, and ADVC12_CS/. The next element in the analog chain is the dBx type 4 tape saturation emulation. Pre-emphasis is applied using R73, C74, and R72. This pre-emphasis is always active even if the dBx type 4 jumpers are disabled. Software running on the DSP56301 performs the corresponding de-emphasis. Jumpers labeled “IN” and “OUT” are used to select if dBx type 4 is enabled or disabled. When the jumper is in position “IN” it is enabled, and when it is in position “OUT” it is disabled. The ADSAT1 signal is a means for the DSP56301 to detect the position of the jumper. When the jumper is in the “IN” position the dual diode packs D1 and D2 are used to create the soft-knee compression. When the signal is sufficiently large D2 and R85 shape the positive excursions while D1 and R84 shape the negative excursions. U13 is an inverting stage that provides a summing node for the dBx type 4 function. At this point the signal is AC coupled (C84) to become the negative leg of the differential input to the AK5383 A/D converter (U17). The AK5383 requires differential drive, 2.5 Vpp per pin, biased at 2.5V. U15 develops the differential drive for the converter with bias provided by R93 and R92. The Bias voltage is filtered by C83 and C82. R105 and R104 provide op amp stability, and C100 decreases the clock feedthrough noise of the AK5393 modulator. The A/D converter delivers 24 bit I2S format serial digital audio the DSP56301.

D/A Conversion (schematic sheets 8, 9 )

The following description applies to the first D/A conversion channel. The other seven channels work in exactly the same manner. The AK4324 D/A converter (U9) accepts 24 bit I2S data from the DSP56301. The differential outputs of the converter are 2.8 Vpp per pin centered around 2.5V. These differential outputs are summed and buffered using U5 (4580). The output filters formed by R19, R21-25, and C15-18 are used to reject noise beyond the audio passband.

Voltage Regulators (schematic sheet 10.)

U26 is a 3.3V regulator used to power the DSP56301 and the digital interface portions of the A/D converters. The power signals +3VD and +3VA are actually 3.3V. U20 is a +5V regulator used to supply quiet +5V power to the analog components on Core2. The series diodes D15-D20 are used to dissipate power to lessen the power dissipation requirements of U20. U19 is a –5V regulator used to supply power as required by the CS3310 volume control I.C.s.

6-8

Chapter 7 - Parts List

CORE 2 PC BOARD ASSEMBLY

PART NO. DESCRIPTION QTY REFERENCE

120-09620 ADHESIVE,LOCTITE,#430,SUPER 0.00 J1 SCREWS 202-09794 RESSM,RO,0 OHM,0805 1.00 R142 202-09795 RESSM,RO,5%,1/10W,2.2K OHM 2.00 R145,158 202-09873 RESSM,RO,5%,1/10W,10K OHM 10.00 R130-134,137-139,155

R156 202-09894 RESSM,RO,5%,1/10W,1M OHM 2.00 R143,148 202-09899 RESSM,RO,5%,1/10W,47 OHM 8.00 R115-117,149-151

R153,154 202-10557 RESSM,RO,5%,1/10W,4.7K OHM 12.00 R119-123,125-129

R141,157 202-10558 RESSM,RO,5%,1/10W,47K OHM 9.00 R84-91,146 202-10559 RESSM,RO,5%,1/10W,100 OHM 1.00 R147 202-10569 RESSM,RO,5%,1/10W,10 OHM 6.00 R17,18,68-71 202-10597 RESSM,RO,5%,1/10W,180 OHM 1.00 R159 202-10598 RESSM,RO,5%,1/10W,330 OHM 3.00 R110-112 202-10946 RESSM,RO,5%,1/10W,3.3K OHM 3.00 R135,136,152**

**10K resistors used on initial shipments

202-10947 RESSM,RO,5%,1/10W,680K OHM 1.00 R118 202-11071 RESSM,RO,5%,1/4W,75 OHM 1.00 R144 203-10583 RESSM,RO,1%,1/10W,10.0K OHM 10.00 R92-101 203-10895 RESSM,RO,1%,1/10W,681 OHM 4.00 R80-83 203-11075 RESSM,RO,1%,1/10W,95.3 OHM 1.00 R113 203-11080 RESSM,RO,1%,1/10W,1.15K OHM 8.00 R72-79 203-11082 RESSM,RO,1%,1/10W,15.0K OHM 16.00 R19,20,24,27,31,32

R36,39,43,44,48,51

R55,56,60,63 203-11724 RESSM,RO,1%,1/10W,150 OHM 16.00 R1-8,102-109 203-11726 RESSM,RO,1%,1/10W,301 OHM 1.00 R114 203-11895 RESSM,RO,1%,1/10W,12.1K OHM 16.00 R22,25,28,30,34,37

R40,42,46,49,52,54

R58,61,64,66 203-12497 RESSM,RO,1%,1/10W,8.25K OHM 1.00 R67 203-12837 RESSM,RO,1%,1/10W,13.0K OHM 8.00 R9-16 203-13809 RESSM,RO,1%,1/10W,2.74K OHM 16.00 R21,23,26,29,33,35

R38,41,45,47,50,53

R57,59,62,65 240-11827 CAPSM,ELEC,10uF,16V,20% 38.00 C3,5,11-14,49,51

C54,55,57,60,61,63

C65,67,69,71,83-87

C92-95,112-116,119

C129,132,140,142,146 240-12136 CAPSM,ELEC,33uF,10V,20% 1.00 C131 240-13217 CAPSM,ELEC,47uF,16V,20% 2.00 C48,73 244-12322 CAP,MYL,.047uF,50V,RAD,5%,BOX 4.00 C74-77 245-09876 CAPSM,CER,.01uF,50V,Z5U,20% 1.00 C121 245-10544 CAPSM,CER,220pF,50V,COG,5% 16.00 C16,17,20,21,24,25

C28,29,32,33,36,37

C40,41,44,45

Lexicon

7-1

Lexicon Studio Core2 Service Manual

PART NO. DESCRIPTION QTY REFERENCE

245-10561 CAPSM,CER,100pF,50V,COG,5% 8.00 C78-81,88-91 245-10976 CAPSM,CER,47pF,50V,COG,5% 4.00 C1,2,123,124 245-11594 CAPSM,CER,2200pF,50V,COG,5% 4.00 C99,100,107,108 245-11625 CAPSM,CER,33pF,50V,COG,5% 4.00 C134,135,137,138 245-12316 CAPSM,CER,.0082uF,50V,X7R,10% 1.00 C128 245-12485 CAPSM,CER,.1uF,25V,Z5U,20% 90.00 BC1,2,5-8,13-16(+/-)

BC22;BC23A-H,J-L BC24;BC27A-H BC28,29 C4,6-10,47,50,52,53 C56,58,59,62,64,66 C68,70,72,82,96-98 C101-106,109-111 C117,118,120,122 C125-127,130,133 C136,139,141,143-145

245-13810 CAPSM,CER,1200pF,50V,COG,5%,08 16.00 C15,18,19,22,23,26

C27,30,31,34,35,38

C39,42,43,46 270-00779 FERRITE,BEAD 2.00 FB5,6 270-11545 FERRITESM,CHIP,600 OHM,0805 9.00 FB1-4,7-11 300-10509 DIODESM,1N914,SOT23 2.00 D14,23 300-10563 DIODESM,DUAL,SERIES,GP,SOT23 9.00 D1-8,24 300-11599 DIODESM,GP,1N4002,MELF 10.00 D12,13,15-22 330-10523 ICSM,DIGITAL,74HCU04,SOIC 1.00 U28 330-12452 ICSM,DIGITAL,74VHCT244,SOIC 1.00 U22 340-09244 ICSM,LINEAR,78LS05,5V REG,SO-8 1.00 U29 340-10550 ICSM,LIN,CS3310,VOL CTL,SOIC 2.00 U3,4 340-11573 ICSM,LIN,NJM4580,DUALOPAMP,SOP10.00 U1,2,5-8,13-16 340-11575 ICSM,LIN,7805,+5V REG,TO263 1.00 U20 340-12061 ICSM,LIN,TLC2932,PLL,SSOIC 1.00 U30 340-12062 ICSM,LIN,LM3940,5-3V REG,TO263 1.00 U26 340-13843 ICSM,LIN,79L05A,-5V REG,SO-8 1.00 U19 346-12072 ICSM,SS SWITCH,QS3245,QSOP 2.00 U21,25 350-13834 ICSM,FPGA,XCS10,14X14,PLCC 1.00 U27 350-13846 ICSM,ROM,27256,CORE2,V1.00 1.00 U24 355-12830 ICSM,DAC,AKM4324,24b,96kHzVSOP 4.00 U9-12 355-13829 ICSM,ADC,AKM5383,24b,96kHz,SOP 2.00 U17,18 365-12046 ICSM,uPROC,DSP,56301,66MHz,TQF 1.00 U23 390-12075 CRYSTALSM,6.000MHz,PAR,18pF 1.00 Y1 390-12361 CRYSTALSM,11.2896MHz,PAR,HC49 1.00 Y3 390-12362 CRYSTALSM,12.288MHz,PAR,HC49 1.00 Y2 430-10421 LEDSM,INNER LENS,GRN 3.00 D9-11 490-02356 CONN,JUMPER,.1X025,2FCG 4.00 W5-8 510-03961 CONN,POST,100X025,HDR,2MCG 8.00 W1-8 510-13835 CONN,POST,.100,HDR,2X6MCG,LP 1.00 J2 510-13837 CONN,DB25FG,PCRA,4-40THRD INS 1.00 J1 510-13840 CONN,OPTO,PCRA,TORX173,6Mbps 1.00 CP1 510-13841 CONN,OPTO,PCRA,TOTX173,6Mbps 1.00 CP2 527-12974 CONN,DSUB,JSCKT,4-40,.187X.25 2.00 J1 640-01701 SCRW,4-40X1/4,PNH,PH,ZN 1.00 BRACKET 701-13842 BRACKET,PCI,DB25+2OPTO CUTOUT 1.00 710-13710 PC BD,MAIN,CORE2 1.00 740-11287 LABEL,S/N,PCB,PRINTED 1.00

7-2

CORE2 CONNECTOR BD MECHANICAL ASSEMBLY

PART NO. DESCRIPTION QTY REFERENCE

541-00781 BUMPER,FEET,.5SQX.23H,ADH,BLK 4.00 PLATE BOTTOM 641-01703 SCRW,TAP,AB,4X1/4,PNH,PH,ZN 4.00 CB TO BOTTOM PLATE 641-10989 SCRW,TAP,AB,4X3/8,PNH,PH,BZ 5.00 RCA CONN TO CVR (1);

COVER TO BOTTOM (4) 700-13741 COVER,CORE2 1.00 702-13740 PLATE,BOTTOM,CORE2 1.00 740-09538 LABEL,S/N,CHASSIS,PRINTED 1.00 BOTTOM PLATE

CORE 2 CONNECTOR BD PC BOARD ASSEMBLY

PART NO. DESCRIPTION QTY REFERENCE

510-12348 CONN,DB25FG,PCRA,4-40SCRWLK 1.00 J8 510-13149 CONN,RCA,PCRA,1FCGX2V,WH/RED,G1.00 J7 510-13847 1/4"PH JACK,VERTX2,STER,.5"SP 6.00 J1-6 710-13730 PC BD,CONN,CORE2 1.00

Lexicon

CORE 2 SHIPPING MATERIAL

PART NO. DESCRIPTION QTY REFERENCE

730-13732 FLYER,UPG,COOL EDIT PRO 1.00 740-03170 LABEL,CAUTION STATIC SENSITIVE 1.00 740-13737 LABEL,"INCL. COOL EDIT PRO SE" 1.00 740-13800 LABEL,SYS REQ,PC,LEX STUDIO 1.00 750-13708 CD,CORE2,V1.20 1.00

7-3