AES16e User Manual Page 1
Contents 1 Introduction ................................................................................................................................4 1.1 Overview .............................................................................................................................4 1.2 Features ...............................................................................................................................4 1.3 Before you begin.......................................................
12 Appendices ......................................................................................................................... 69 12.1 Specifications................................................................................................................69 12.2 Programming the AES16e firmware...........................................................................71 12.3 Safety instructions.....................................................................................................
Introduction 1 Introduction Thank you for choosing the Lynx AES16e™ PCI-Express audio interface. The AES16e has been designed to provide you with the highest quality professional audio performance available, offering unequalled AES/EBU channel capacity and routing flexibility. Even if you’re an experienced audio professional, please take a few moments to read through this user’s manual.
Introduction On-board zero-latency digital mixer provides extensive routing capabilities with patch-bay functionality. Full PCI Express implementation with simultaneous read/write capability. Low-latency drivers for Windows XP and Vista – supports WDM, MME, ASIO 2.0, DirectSound, and Direct Kernel Streaming. 64-bit drivers available for use with Windows XP64 and 64-bit versions of Windows Vista. Low-latency drivers for Macintosh – supports Core Audio for OS X (including Intel-based Macs).
Introduction 1.5 System requirements Below are listed the minimum hardware and operating system requirements for compatibility with the AES16e. It is important to note that most professional audio applications place significant demands on your computer’s resources, and it is therefore recommended that you meet or exceed the recommended system requirements for your Digital Audio Workstation software, which will likely be greater than those listed for the AES16e.
Installation Procedures 2 Installation Procedures The procedure for installing the AES16e requires that you physically install the AES16e card inside your computer before running the driver installation. The Setup Program will install the required driver files and the Lynx mixer application, as well as configure your system to recognize the AES16e. 2.1 AES16e Hardware Installation 1. Turn OFF the power to your computer system and disconnect the power cords. 2.
Installation Procedures 2.2.2 Installing the Windows Driver Package In Windows XP/XP64 1. When you start Windows after installing the AES16e into your computer, the New Hardware Wizard will appear. Select “Install from a list or specific location” and click “Next >” to proceed. 2. From the next window, select "Search removable media”. Click "Next >" to proceed. 3. Windows will begin to search for the appropriate driver files: 4.
Installation Procedures 2.2.3 Uninstalling the AES16e Windows Driver Package in Windows XP/XP64 1. From the start menu, click on “Control Panel.” 2. Click “System” to launch System Properties: 3.
Installation Procedures 4. Expand the “Sound, video and game controllers” section of device manager be clicking its + sign: 5. Right click on “Lynx AES16” and choose “Uninstall” 6. Confirm device removal by clicking “OK”. 7.
Installation Procedures 2.2.4 Updating an existing driver in Windows XP/XP64: Navigate your web browser to: http://www.lynxstudio.com > Support > Download. Select OS = Windows; Product = AES16e; File Types = All Types. Download the current driver installer. 1. Double-click the downloaded file to decompress, and accept the default destination folder of C:\Lynx. 2. From the start menu, click on “Control Panel.” 3. Click “System” to launch System Properties.
Installation Procedures 4. Choose “Device Manager” from the “Hardware” tab. 5. Expand the “Sound, video and game controllers” section of device manager be clicking its + sign. 6. Double click the “Lynx AES16e” entry to launch the Lynx AES16e Properties dialog box. Click the “Driver” tab, then click “Update Driver…”.
Installation Procedures 7. When the Hardware Update Wizard box appears, choose “Install from a list or specific location (Advanced)” and click “Next>.” 8. From the next window, select "Don’t search, I will choose the driver to install”. Click "Next >" to proceed. 9. When prompted to select a device driver, click “Have Disk”. 10. Next, you’ll be asked to insert the manufacturer’s installation disk into the drive selected (the default is A:\) – type “C:\Lynx” in the text box, and click “OK”.
Installation Procedures 11. You will be prompted to select the device driver you are installing. “Lynx AES16e” will be your only choice. Select it and click “Next>”. 12. You may receive a warning that the driver has not been digitally signed by Microsoft. It is perfectly safe to disregard this warning and click “Continue Anyway” to proceed with the installation. 13. The driver installation will continue.
Installation Procedures 14. Next, we need to update the Lynx Mixer. From the Start Menu, choose “My Computer.” 15. Double-click on the C: Hard Drive and look for the “Lynx” Folder. Double Click the folder to open it. 16. Right Click on the LynxApps.inf (Setup Information) file and click “Install” 17. The new Lynx Driver and Mixer application are now ready to use.
Installation Procedures 2.2.5 Installing the Windows Driver Package in Windows Vista 1. When you start Windows after installing the AES16e into your computer, the New Hardware Wizard will appear. Select “Locate and install driver software (recommended)”. 2. On the next screen, you will be prompted to “Insert the disc that came with your Multimedia Audio Controller”. Since we already did this in Step 2.2.1, click “Next”. 3. The driver installation will begin.
Installation Procedures 2.2.6 Uninstalling the Windows Driver Package in Windows Vista 1. From the start menu, click on “Control Panel.” 2. Click “Device Manager” . 3. Expand the “Sound, video and game controllers” section of device manager be clicking its + sign: 4. Right click on “Lynx AES16e” and choose “Uninstall” 5. Put a check next to “remove driver software” Confirm device removal by clicking “OK”. 6. Reboot the computer 2.2.
Installation Procedures 9. The next screen will claim that Windows couldn’t find a driver. Choose “Browse my computer for driver software (advanced)” . 10. On the next screen, you will be prompted to specify a location for the driver files. Either click “Browse” and navigate to the Lynx folder on the C: drive, or type in “C:\Lynx”. Then click “Next”. 11. If you are prompted to confirm the installation, click “Install”. 12.
Installation Procedures 2.3 Macintosh OS X The AES16e Driver Package provides the greatest compatibility with today’s most popular audio and production software. The AES16e OS X driver supports the Core Audio driver standard and is Universal Binary compatible for use with Intel-based Macintosh computers. 2.3.1 OS X Installation Files The Lynx Installation CD contains all driver files mentioned in the subsequent installation steps, as well as the AES16e manual, driver release notes and test files.
Installation Procedures 5. When prompted to select a destination for the audio driver, choose an appropriate Macintosh HD and then click “Install”. 6. Enter your password in the Authenticate dialog box and click OK. 7. At the installer restart warning, click “Continue Installation”.
Installation Procedures 8. When the install is complete, you will be prompted to restart the computer. NOTE: The OS X installation process installs both the Core Audio driver and the Lynx Mixer application. The Lynx Mixer application is installed in the “Applications” folder. 2.3.3 Uninstalling the AES16e Device Driver and Mixer To uninstall the driver, you will have to use a third-party uninstaller like DesInstaller, which you can get from: http://www.versiontracker.com/macosx/.
Hardware Connections Figure 1: AES16e Board AES16e User Manual Page 22
Hardware Connections 3.2 AES/EBU Cable Connections To minimize cabling issues, a variety of breakout cables are available for the AES16e. 3.2.1 Connections to Equipment with XLR Connectors The CBL-AES1604 cable provides standard XLR connectors for the AES16e. It is a 2 meter long cable with the AES16e compatible HD-26 connector, 4 male and 4 female XLR connectors as well as a BNC word-clock connection.
Hardware Connections 3.2.2 Connections to Equipment with 25-Pin AES/EBU D-Sub Connectors The CBL-AES1605 breakout cables provide 25-pin D-sub connections compatible with industry standard multi-channel digital equipment connectors. The CBL-AES1605 is a four meter cable that utilizes the Yamaha pin configuration for the 25-pin D-Sub connector.
Hardware Connections 3.3.2 Internal Clocking and Multi-card Systems Clock connections to internal equipment are provided via the header CLOCK IN and CLOCK OUT connectors on the AES16e board. Refer to Figure 1 for the location of these connectors. The connectors support 75-ohm, TTL level signals. If you are connecting to another Lynx digital audio card, the Lynx Internal Clock Cable (CBL-ICC) or Universal Clock Cable (CBL-UCC) should be used.
Hardware Connections 3.4 Common Studio Setups This section describes typical studio setups using the AES16e. 3.4.1 External A/D and D/A with Word-clock The figure below illustrates the connection of an eight-channel A/D converter and an eight-channel D/A converter to I/O Port A of the AES16e. This setup uses only half of the available I/O on the AES16e. Additional converters can be connected to I/O Port B to provide up to 16 channels of A/D and D/A conversion.
Hardware Connections 3.4.2 Digital Mixer The figure below illustrates the connection to a digital mixer that has 16 channels of AES/EBU digital I/O. The D-Sub ports on the mixer must be compatible with the Yamaha multi-channel digital I/O standard. Each of these ports provides eight channels of input and eight channels of output. In this setup, either the digital mixer or AES16e can act as the system clock master depending on the clock settings of each device.
Getting Started 4 Getting Started With the AES16e and its drivers properly installed in your computer, you can begin to use its capabilities with most popular third party audio applications. In order for these applications to access the AES16e you must select one of the AES16e audio devices in the application’s audio device configuration menu. Refer to Section 8 Working with Third Party Applications for more information. The following sections provide instructions for testing your installation. 4.
Getting Started 7. Launch the Lynx Demo application from the Lynx Studio Technology program directory (Start > All Programs > Lynx Studio Technology > Lynx Demo). The Lynx Demo program should appear in the upper left corner of your screen. Make certain that the Play Device is set to Lynx AES16e Device 01. 8. Click “File” and navigate to the computer’s Desktop, then select “SineWaveMinus16.wav” and click “Open.” 9. Click “Play.” You should see the progress bar move from left to right.
Getting Started 10. Check the Lynx Output mixer and confirm meter activity for Digital Out 1L and Digital Out 1R. If you have speakers or headphones connected to your destination device, you should hear audio as well as seeing meter activity. If the test did not operate as described or you received any errors, please refer to Section 10 Troubleshooting.
Getting Started 4.2 Macintosh OS X Quick Audio Test The installation of your AES16e can be tested using the Lynx Mixer and iTunes, which is included with current versions of OS X. This is a quick way of verifying that the AES16e card is installed correctly and is connected correctly to your external equipment. 1. Open Applications > Utilities >Audio/MIDI Setup. Verify that the AES16e Play 1 established as the default audio playback device for your system. 2. Locate “SineWaveMinus16.
Getting Started 8. Check the Lynx Output mixer and confirm meter activity for Digital Out 1L and Digital Out 1R. If you have speakers or headphones connected to your destination device, you should also hear audio and see meter activity. If the test did not operate as described or you received any errors, please refer to Section 10 Troubleshooting.
Operational Overview 5 Operational Overview 5.1 Signal Flow As shown in the signal flow diagram below, the AES16e with its on-board digital mixer provides extensive signal routing capabilities that can adapt to any studio requirement. The mixer is implemented using a proprietary digital signal processor (DSP) that is optimized to maintain low latency and high signal quality.
Operational Overview The LStream header on the AES16e is an expansion port that provides an additional 16 inputs from a Lynx LStream device, such as the LS-ADAT that offers 16 channels of ADAT lightpipe. The signals from the LStream header are routed through the LStream receiver, which feeds the Input Bus. 5.1.2 Digital Mixer Inputs The digital mixer has 16 input blocks that receive data from the Input Bus and drive the 16 channels of the record bus.
Operational Overview rate limited: at sample rates of 176.4 kHz or 192 kHz, there are up to 4 sources per output. The benefits of this architecture include the ability to: Route any input to any or all outputs Route any play device data from an application to any or all outputs Mix any input with any play device for recording monitoring Create sub mixes for digital effect sends Since all mixing and routing is hardware-based, so called “zero latency” is achieved.
Operational Overview 5.2.1 Sample Clock Sources The sample clock generator can derive its reference clock from both an internal and various external sources. Only one source can be selected at any given time. User control of the sample clock source selector is provided on the Adapter window of the Lynx Mixer application.
Lynx Mixer Reference 6 Lynx Mixer Reference The Lynx Mixer, which is installed during setup, provides software control of the features of the AES16e and a visual indication of audio signal level during recording and playback. It can be used dynamically to change operational settings of the AES16e, but in most cases once the settings are configured for a particular studio installation they require no further adjustment. 6.1.
Lynx Mixer Reference 6.2 Adapter Window Windows OSX q Sample Clock Section This section of the mixer provides control of the system sample clock generator. All AES16e audio devices on a single card MUST have identical sample rates since there is one on-board generator. Sample rates cannot be changed while AES16e is playing or recording – unless the “Allow Clock Change if Active” option is selected from the Lynx Mixer Settings > Advanced menu (Windows Only).
Lynx Mixer Reference Current Rate Displays the current sample rate of the AES16e. When the AES16e is being used for recording or playback by an application and the CURRENT SOURCE is “Internal”, the rate shown is the rate set by the application.
Lynx Mixer Reference achieving lock, the four green LED’s give an indication of the completion of various lock stages. During this time the wide range analog PLL maintains lock. For more information on SynchroLock, refer to the Section 5.3 SynchroLock™. Working: In this state SynchroLock is analyzing the input clock signal and making adjustments to frequency and phase. This process typically takes two to three minutes to complete.
Lynx Mixer Reference 3. e The Clock Source was selected when the AES16e card was being accessed by some software application. In this case, the Preferred Clock Source will become the Current Source when the card is no longer being accessed. If “Allow Clock Change if Active” is selected from the Lynx Mixer Settings > Advanced menu, then a new Preferred Clock Source can become the Current Source while the card is being accessed from a software application.
Lynx Mixer Reference Valid linear PCM types (bit width): PCM PCM19 PCM23 PCM16 PCM20 PCM24 PCM18 PCM22 Valid compressed, non-PCM types: Dolby AC-3 MPEG1L1 MPEG2AAC MPEG2L3 DTS I ATRAC MPEG1L2 MPEG2L1 MPEG-4 DTS II ATRAC2/3 MPEG2 MPEG2L2 DTS III Emphasis Off (gray) 50/15us (green) J17 (green) Unknown (green) Emphasis is off 50/15us pre-emphasis CCITTJ.
Lynx Mixer Reference SRC Enable This checkbox will only appear when using an AES16e-SRC. This checkbox controls the state of the sample rate converter for a specific digital input. When checked, the incoming signal is routed through the sample rate converter so the sample rate will match the currently selected sample rate of the AES16e-SRC. For example, when the device connected to Digital In 5 is running at 48 kHz, the AES16e-SRC is running at 44.
Lynx Mixer Reference 6.3 Record/Play Window Windows OSX t Input Source Select Buttons These buttons control the patching of physical inputs to record device channels of the digital mixer. Each device channel can derive its source from any one of the 32 available inputs, which include 16 from I/O Port A and B and 16 from the LStream port. The button on the left side of each record device panel corresponds to the left channel of the device.
Lynx Mixer Reference y Peak Meter These meters display the instantaneous peak level of audio being sent to the AES16e input selected by the Input Source Select buttons. u Mute This button enables the mute function for the associated input. i Dither This button enables dithering for the associated input. The Record Dither Type control in the Settings menu determines the type of dither applied to the input.
Lynx Mixer Reference 1@ Record Device Label / Status Indicator This label panel specifies the record device number associated with each input panel. When an application is accessing a record device, the background of this label turns green to indicate the device is in record mode. Observing this indicator can be very useful while debugging communication problems with third party applications.
Lynx Mixer Reference 6.
Lynx Mixer Reference 1^ Output Monitor Source Buttons These buttons control the routing of record and playback sources that feed each of the 16 output channels. Since each output is derived from the sum of the ten sources, each button controls the selection of one of the sources. When a button is clicked, a pop-up menu is launched that displays the available sources that can be selected.
Lynx Mixer Reference 2) Peak Meters These meters display the instantaneous peak level of the output signal. Meters turn red when the output level is within 16dB of clipping. 2! Mute This button enables the mute function for the associated output. 2@ Output Dither This button enables the addition of triangular probability density dither for each associated output.
Lynx Mixer Reference 6.5 Mixer Menu (Windows)/ File Menu (OS X) The Mixer menu, located at the top left of the screen, allows selection of global mixer functions. 2# Restore Defaults This option restores all user-selectable parameters to factory default settings. This feature should be used as a first step when mixer settings issues are encountered. 2$ Open Scene (Windows)/ Load Scene (OS X) This feature allows user-defined mixer scenes to be restored.
Lynx Mixer Reference 2^ About Lynx Mixer (Windows Only) PLEASE NOTE: The About Lynx Mixer window will display different information than what is shown here. This option displays information about the Lynx Mixer, driver, and firmware as follows: Mixer/Driver Version: Displays the current mixer version and build number. Build Date: Displays the date the driver and mixer were released. LynxWDM.Dll Version: Helps to identify a driver/mixer version mismatch.
Lynx Mixer Reference 6.6 Settings Menu The Settings Menu offers access to advanced settings and an alternative method of accessing commonly used functions that appear in the Adapter Window. OS X Note: Grayed Out selections are for L22/LynxTWO cards only. 2* Always on Top (Windows Only) When this option is checked, the Lynx Mixer window stays on top of other active windows.
Lynx Mixer Reference 3! Record Dither Type This option provides selection of the type of dither used on all record channels. The following options are available: Triangular - Enables the addition of triangular probability density dither. Triangular is the preferred dither type in most cases. Shaped Triangular - This type of dither is essentially high-pass filtered triangular dither that places most of the dither energy at higher frequencies making it less audible to the human ear.
Lynx Mixer Reference 3# Device Settings (OS X Only) This option provides access to several parameters for fine-tuning the driver performance. The default settings are appropriate for most conditions of use, but in some cases Lynx Technical Support will suggest altering these parameters as a troubleshooting option. Settings are organized by specific sample rate ranges to maximize the performance benefits.
Using the AES16e 7 Using the AES16e This section describes how to perform common tasks with AES16e. Additional information is available in the Frequently Asked Questions (FAQ) section on the Lynx web site (http://www.lynxstudio.com). 7.1 Mixer Scene Storage and Recall Once you have configured the mixer’s routing and other parameters, you may save that configuration in memory as a mixer “Scene.” Saved scenes may be recalled to quickly reconfigure the mixer.
Using the AES16e 7.2.1 Monitoring Theory Low latency monitoring can be enabled using the AES16e’s on-board digital mixer. This method avoids delays caused be monitoring through application software. The digital mixer can be setup manually using the Lynx Mixer application or within applications that support ASIO Direct Monitoring. As discussed in Section 5.1.5 Digital Mixer Outputs, each output of the AES16e is derived from a ten-input submixer. This submixer is shown below.
Using the AES16e 7.2.3 Using Direct Monitoring in an ASIO Application The Direct Monitoring (sometimes referred to as “hardware monitoring”) feature offered in many popular third party applications provides a means to enable low-latency monitoring supported by the AES16e’s onboard digital mixer. Instead of using the Lynx Mixer to manually enable monitoring as discussed in the previous section, controls within the application provide convenient access to this functionality.
Using the AES16e Click the speaker icon in the Cubase /Nuendo Mixer window to enable Direct Monitoring. Click the speaker icon in Samplitude/Sequoia to enable Direct Monitoring. 7.3 Playback Routing and Mixing In addition to standard monitoring of inputs through physical outputs, the Lynx mixer is capable of sophisticated routing and mixing of playback and record sources.
Using the AES16e Selecting Play 2 (P2L and P2R) in the next set of Monitor Source Buttons down, allows you to monitor audio from Play 1 and Play 2 out of Digital Out 1 at the same time. If one application or playback stream is assigned to Play 1, and another to Play 2, you would hear audio from both out of Digital Out 1. You can adjust the relative level of these two sources with the volume slider directly underneath each Monitor Source Button.
Using the AES16e With Dual Wire Out enabled, the AES16e translates output signals to dual-wire connections according to the second table. In this mode, output channels 5 – 8 are not active.
Using the AES16e Ignore Direct Monitor Requests – This switch causes the AES16e driver to disregard Direct Monitor commands from an ASIO software application. Since Direct Monitor calls can assign and mute monitor sources in the Lynx Mixer Outputs page, setting this parameter to “ON”, can prevent mixer settings from being changed when an ASIO application is launched. DM Uses Active Devices – This switch sets the Direct Monitoring scheme for the application.
Working with Third Party Applications 8 Working with Third Party Applications 8.1 Compatibility The drivers included with your AES16e provide compatibility with all standard third party digital audio applications that communicate with Windows Wave audio, DirectSound, Core Audio and ASIO devices. Support for these driver models insures compatibility with the vast majority of OSX and Windows audio applications.
Working with Third Party Applications with ASIO and WDM drivers. The net result is exceptional low-latency performance with minimal CPU overhead. 8.2 Controlling Audio Bit Depth The creation of an audio file with a particular bit depth (or resolution) is controlled through an application’s recording settings. These settings are typically adjusted in an audio device configuration menu or in a recording setup window just prior to recording.
Configuring Multiple AES16e’s 9 Configuring Multiple AES16e’s More than one AES16e card can be installed in a computer for additional audio channels. It is also possible to mix AES16e and AES16 or LynxTWO/L22 cards in systems that have both PCIe and standard PCI slots. If required, all AES16e’s in a computer can be configured to maintain sample accurate synchronization during digital audio recording and playback. 9.
Configuring Multiple AES16e’s Open the Adapter page for the card that is functioning as the clock master. Make sure that the PREFERRED CLOCK SOURCE for this card is set to “Internal”. For the first clock slave card, open its Adapter window and verify that a sample rate is displayed next to “Header” in the PREFERRED CLOCK SOURCE section. If not, power down the computer, check cable connections and card orientation, and then power up and check again.
Configuring Multiple AES16e’s 9.2 Adapter ID’s When multiple AES16e cards are installed in a computer they are automatically assigned unique adapter ID numbers. These adapter ID’s provide a means to identify and communicate with each AES16e when using the Lynx Mixer application and to select audio devices in third party applications.
Troubleshooting 10 Troubleshooting Clicking, popping or crackling noises in your audio: 1. Check clock master settings. In any digital audio configuration, there can be one, and only one master clock. All other digital audio devices must be configured as slaves to the designated master clock. Since the AES16e’s SynchroLock™ technology provides an extremely stable and jitter-resistant clock, we recommend setting the AES16e as the master clock in your digital audio system. 2.
Support 11 Support We are devoted to making your experience with the AES16e trouble-free and productive. If the troubleshooting and operational sections of this manual did not help resolve your questions, several support options are available to you: 11.1 Lynx Website Support Resources Logging on to http://www.lynxstudio.
Appendices 12 Appendices 12.1 Specifications DIGITAL I/O Number / Type Channels Sample Rates Sample Rate Conversion ARCHITECTURE Core Audio Devices CLOCKING Sources SynchroLock Eight inputs and eight outputs, 24-bit AES/EBU format, transformer coupled 16 in/out in single-wire mode, 8 in/out in dual-wire mode All standard rates and variable rates up to 192 kHz in both single wire and dual-wire modes Sixteen channels available with support for conversion ratios up to 16:1. Dynamic range: 144 dB.
Appendices OPTIONAL CABLES CBL-AES1604 CBL-AES1605 26-pin high-density male D-sub to four female XLR’s (AES inputs), four male XLR’s (AES outputs), and two female BNC’s (word clock I/O). Sixfoot, 110-ohm shielded twisted pair cabling. 26-pin high-density male D-sub to 25-pin male D-sub. Supports 4 channels of input and output. Compatible with Aurora converters and devices with standard Yamaha digital I/O pinout from Yamaha, Apogee, Mackie, and others. Twelve- foot, 110-ohm shielded twisted pair cabling.
Appendices 12.2 Programming the AES16e firmware Firmware is a set of configuration data that controls the low-level operation of a hardware device. The firmware can be altered to change how a particular function works or add new features. From time to time, Lynx will provide new firmware to improve the functionality of a product. End users cannot alter firmware supplied by Lynx.
Appendices 12.4 EMC Certifications 12.4.1 FCC DECLARATION OF CONFORMITY TRADE NAME: MODEL NUMBER: COMPLIANCE TEST REPORT NUMBER: COMPLIANCE TEST REPORT DATE: RESPONSIBLE PARTY (IN USA): ADDRESS: TELEPHONE: Computer Audio Card AES16 Covered by European Standards Report #B30915V1 November 2, 2003 Lynx Studio Technology, Inc.
Appendices 13 License Agreement This End-User License Agreement (this “Agreement”) is a legal contract between you, as either an individual or a single business entity, and Lynx Studio Technology, Inc. and its affiliates (“Lynx”). READ THE TERMS AND CONDITIONS OF THIS AGREEMENT CAREFULLY BEFORE INSTALLING LYNX’S SOFTWARE (THE “SOFTWARE”). THE SOFTWARE IS COPYRIGHTED AND IT IS LICENSED TO YOU UNDER THIS AGREEMENT, NOT SOLD TO YOU.
Appendices 14 Warranty Information AES16e One year Free Labor / One year Parts Exchange This product must be returned to the factory for repair. Who Is Covered? You must have proof of purchase to receive warranty service. A sales receipt or other document showing when and where you purchased the product is consider proof of purchase. This warranty is enforceable only by the original retail purchaser.
