Arris DCX3520e-M User manual

Installation Manual
DCX3520e-M
High-Definition DVR

©ARRIS Enterprises, Inc. 2013 All rights reserved. No part of this publication may be reproduced in any form or by any means or used to make
any derivative work (such as translation, transformation, or adaptation) without written permission from ARRIS Enterprises, Inc. (“ARRIS”).
ARRIS reserves the right to revise this publication and to make changes in content from time to time without obligation on the part of ARRIS
to provide notification of such revision or change.
ARRIS and the ARRIS logo are all trademarks of ARRIS Enterprises, Inc. DOCSIS® is a registered trademark of Cable Television Laboratories, Inc.
HDMI, the HDMI Logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC. Dolby and
the double-D symbol are registered trademarks of Dolby Laboratories. This product incorporates copyright protection technology that is
protected by U.S. patents and other intellectual property rights. Use of this copyright protection technology must be authorized by Rovi, and
is intended for home and other limited viewing uses only unless otherwise authorized by Rovi. Reverse engineering or disassembly is
prohibited. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and the
names of their products. ARRIS disclaims proprietary interest in the marks and names of others.
ARRIS provides this guide without warranty of any kind, implied or expressed, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose. ARRIS may make improvements or changes in the product(s) described in this manual at
any time.
The capabilities, system requirements and/or compatibility with third-party products described herein are subject to change without notice.

Safety & Regulatory Information
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Safety & Regulatory Information
IMPORTANT SAFETY INSTRUCTIONS
• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades with one wider than the other. A grounding
type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit
into your outlet, consult an electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the
apparatus.
• Only use attachments/accessories specified by the manufacturer.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as the power supply
cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does
not operate normally, or has been dropped.
IMPORTANT SAFETY CONSIDERATIONS
The DCX3520e-M set-top requires careful handling to avoid potential damage to its internal hard disk drive or the loss of recorded data. Be sure to follow these
requirements during transportation and installation.
The plug is the main disconnect device. It shall remain readily accessible and operable.
The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases, shall be placed on the apparatus.
During Transportation to the Subscriber Home
Transport the cable terminal in its shipping box or an equally padded container.
Do not expose the terminal to rain or moisture.
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Safety & Regulatory Information
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During Installation
• Do not place the terminal in an enclosed area where the cooling vents are blocked or impede the flow of air through the ventilation openings.
• Install the terminal so that its position does not interfere with its proper ventilation. For example, do not place the terminal on a bed, sofa, rug, or
similar surface that could block the ventilation openings.
• Install the terminal away from heat sources such as radiators, heat registers and stoves. Installation of the terminal near consumer electronics devices,
such as stereo receiver/amplifiers and televisions, is permitted as long as the air surrounding the terminal does not exceed 40º C (104º F).
• Place the terminal on a flat surface not prone to vibration or impact.
• Do not install the terminal in an area where condensation occurs.
• To prevent the temporary loss of guide data and cause a temporarily non-responding terminal, do not plug the AC power cord into a switched power
outlet.
• To avoid shock and vibration damage to the internal hard drive, do not move the terminal while it is plugged in.
• To allow the hard drive to spin down and park its heads, wait at least 10 seconds after disconnecting power before moving the terminal.
FCC Compliance
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation. This equipment uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in
a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and set-top.
• Connect the equipment into an outlet on a circuit different from that to which the set-top is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Caution: Changes or modifications not expressly approved by ARRIS for compliance could void the user’s authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause undesired operation.
FCC Declaration Of Conformity
ARRIS Enterprises, Inc.3871 Lakefield Drive, Suwanee, GA 30024, 1-215-323-1000, declares that the DCX 3520e-M set-top complies with 47 CFR Parts 2 and 15 of the FCC
rules as a Class B digital device.
Canada Industry Canada (IC)
This Class B digital device complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

Safety & Regulatory Information
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Caring for the Environment by Recycling
When you see this symbol on a ARRIS product, do not dispose of the product with residential or
commercial waste.
Recycling your ARRIS Equipment
Please do not dispose of this product with your residential or commercial waste. Some countries or
regions, such as the European Union, have set up systems to collect and recycle electrical and electronic
waste items. Contact your local authorities for information about practices established for your region. If
collection systems are not available, call ARRIS Customer Service for assistance.

Software License
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Software License
IMPORTANT: PLEASE READ THIS SOFTWARE LICENSE (“LICENSE”) CAREFULLY BEFORE YOU USE ANY SOFTWARE, FIRMWARE AND RELATED DOCUMENTATION (“SOFTWARE”)
PROVIDED WITH THE ARRIS DIGITAL CABLE RECEIVER OR HOME THEATER SYSTEM (EACH SHALL BE REFERRED TO IN THIS LICENSE AS A “RECEIVER”). BY USING THE RECEIVER
AND/OR USING ANY OF THE SOFTWARE, YOU INDICATE YOUR ACCEPTANCE OF EACH OF THE TERMS OF THIS LICENSE. UPON ACCEPTANCE, THIS LICENSE WILL BE A LEGALLY
BINDING AGREEMENT BETWEEN YOU AND ARRIS. THE TERMS OF THIS LICENSE APPLY TO YOU AND TO ANY SUBSEQUENT USER OF THIS SOFTWARE.
IF YOU DO NOT AGREE TO ALL OF THE TERMS OF THIS LICENSE (I) DO NOT USE THE SOFTWARE AND (II) RETURN THE RECEIVER AND THE SOFTWARE (COLLECTIVELY,
“PRODUCT”), INCLUDING ALL COMPONENTS, DOCUMENTATION AND ANY OTHER MATERIALS PROVIDED WITH THE PRODUCT, TO YOUR POINT OF PURCHASE OR SERVICE
PROVIDER, AS THE CASE MAY BE, FOR A FULL REFUND.
The Software includes associated media, any printed materials, and any “on line” or electronic documentation. Software provided by third parties may be subject to
separate end user license agreements from the manufacturers of such Software. The Software is never sold. ARRIS licenses the Software to the original customer and to
any subsequent licensee for personal use only on the terms of this License. ARRIS and its third party licensors retain the ownership of the Software.
You may:
USE the Software only in connection with the operation of the Product.
TRANSFER the Software (including all component parts and printed materials) permanently to another person, but only if the person agrees to accept all of the terms of
this License. If you transfer the Software, you must at the same time transfer the Product and all copies of the Software (if applicable) to the same person or destroy any
copies not transferred.
TERMINATE this License by destroying the original and all copies of the Software (if applicable) in whatever form.
You may not:
(1) Loan, distribute, rent, lease, give, sublicense or otherwise transfer the Software, in whole or in part, to any other person, except as permitted under the TRANSFER
paragraph above. (2) Copy or translate the User Guide included with the Software, other than for personal use. (3) Copy, alter, translate, decompile, disassemble or
reverse engineer the Software, including but not limited to, modifying the Software to make it operate on non compatible hardware. (4) Remove, alter or cause not to be
displayed, any copyright notices or startupmessage contained in the Software programs or documentation. (5) Export the Software or the Product components in
violation of any United States export laws.
The Product is not designed or intended for use in on line control of aircraft, air traffic, aircraft navigation or aircraft communications; or in design, construction, operation
or maintenance of any nuclear facility. ARRIS AND ITS THIRD PARTY LICENSORS DISCLAIM ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR SUCH USES. YOU
REPRESENT AND WARRANT THAT YOU SHALL NOT USE THE PRODUCT FOR SUCH PURPOSES.
Title to this Software, including the ownership of all copyrights, mask work rights, patents, trademarks and all other intellectual property rights subsisting in the
foregoing, and all adaptations to and modifications of the foregoing shall at all times remain with ARRIS and its third party licensors. ARRIS retains all rights not expressly
licensed under this License. The Software, including any images, graphics, photographs, animation, video, audio, music and text incorporated therein is owned by ARRIS
or its third party licensors and is protected by United States copyright laws and international treaty provisions. Except as otherwise expressly provided in this License, the
copying, reproduction, distribution or preparation of derivative works of the Software, any portion of the Product or the documentation is strictly prohibited by such laws
and treaty provisions. Nothing in this License constitutes a waiver of the ARRIS rights under United States copyright law.
This License and your rights regarding any matter it addresses are governed by the laws of the Commonwealth of Pennsylvania, without reference to conflict of laws
principles. THIS LICENSE SHALL TERMINATE AUTOMATICALLY if you fail to comply with the terms of this License.
ARRIS is not responsible for any third party software that is provided as a bundled application, or otherwise, with the Software or that is downloaded to, or otherwise
installed on, the Product.
U.S. GOVERNMENT RESTRICTED RIGHTS
The Product and documentation is provided with RESTRICTED RIGHTS. The use, duplication or disclosure by the Government is subject to restrictions as set forth in
subdivision (c)(1)(ii) of The Rights in Technical Data and Computer Software clause at 52.227 7013. The contractor/manufacturer is ARRIS Enterprises, Inc., 3871 Lakefield
Drive, Suwanee, GA 30024.
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Contents
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Contents
Safety & Regulatory Information.........................................................................................................................i
Software License.................................................................................................................................................iv
Tables ..................................................................................................................................................................vi
Figures................................................................................................................................................................vii
Introduction .........................................................................................................................................................1
Features................................................................................................................................................................................................................ 2
Tuners........................................................................................................................................................................................................... 2
Standard Audio/Video Features ........................................................................................................................................................ 2
Standard DVR Functionality ................................................................................................................................................................ 3
Standard Data Features......................................................................................................................................................................... 3
Standard Miscellaneous Features ..................................................................................................................................................... 4
Technical Assistance Center......................................................................................................................................................................... 4
Calling for Repairs ............................................................................................................................................................................................ 4
Overview ..............................................................................................................................................................5
Front Panel.......................................................................................................................................................................................................... 5
Video Format Indicators (Front Panel Display) ............................................................................................................................ 6
Rear Panel............................................................................................................................................................................................................ 7
Installation ...........................................................................................................................................................8
Cold Reset Procedure...................................................................................................................................................................................... 8
Remote Control Cold Reset ................................................................................................................................................................. 8
Clearing the Hard Drive......................................................................................................................................................................... 9
Video Connection Options .........................................................................................................................................................................10
Audio Connection Options.........................................................................................................................................................................11
Installation Overview ....................................................................................................................................................................................12
Connecting an HDTV — Single Connection for Video/Audio.......................................................................................................13
Cable In......................................................................................................................................................................................................13
HDMI...........................................................................................................................................................................................................13
Connecting an HDTV — Separate Video/Audio Connections......................................................................................................14
Cable In......................................................................................................................................................................................................14
DVI ...............................................................................................................................................................................................................14
Component Video (YPbPr).................................................................................................................................................................14
Audio ..........................................................................................................................................................................................................14
Connecting an A/V Receiver — Audio ...................................................................................................................................................16
Connecting a Standard-Definition TV (SDTV)......................................................................................................................................18
Connecting a Standard-Definition TV (SDTV) and VCR/DVD Recorder.....................................................................................19
Connecting an A/V Receiver, SDTV, and VCR ......................................................................................................................................21

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Connecting to an External eSATA DVR/Hard Drive...........................................................................................................................23
Data Device Connections............................................................................................................................................................................24
Data Features ..........................................................................................................................................................................................24
Operational Check for the Remote Control .........................................................................................................................................25
Configuring the User Settings ..........................................................................................................................26
User Settings Menu Main Screen .............................................................................................................................................................27
Native Mode Settings Screen.....................................................................................................................................................................31
Additional HDMI Settings Screen.............................................................................................................................................................35
Additional Closed Caption Settings Screen .........................................................................................................................................38
Subtitle and DVS Settings Screen ............................................................................................................................................................40
Advanced Audio/Video Settings Screen ...............................................................................................................................................42
Graphics Overlaying the Video .................................................................................................................................................................43
Diagnostics.........................................................................................................................................................44
Using the Diagnostics...................................................................................................................................................................................44
General Status.........................................................................................................................................................................................45
Purchase Status ......................................................................................................................................................................................47
Out-Of-Band (OOB) Status .................................................................................................................................................................49
Agile OOB Tuner Hunting...................................................................................................................................................................51
In-Band Status.........................................................................................................................................................................................52
Unit Address ............................................................................................................................................................................................54
Current Channel Status .......................................................................................................................................................................56
RF Modem (Upstream).........................................................................................................................................................................59
Code Modules.........................................................................................................................................................................................60
Memory Configuration........................................................................................................................................................................64
Audio/Video Status...............................................................................................................................................................................65
Interface Status.......................................................................................................................................................................................69
DVR/Hard Drive Status.........................................................................................................................................................................71
DOCSIS Status .........................................................................................................................................................................................74
Application Specific Information.....................................................................................................................................................77
Interactive Status ...................................................................................................................................................................................78
Connected Home ..................................................................................................................................................................................81
Troubleshooting................................................................................................................................................83
Tables
Table 1: DVR recording time guidelines .................................................................................................................................................. 3
Table 2: Audio Connection Options........................................................................................................................................................11
Table 3: Operational check procedures.................................................................................................................................................25
Table 4: User Settings—Main Menu Field Descriptions ..................................................................................................................29

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Table 5: Native Mode Settings Field Descriptions .............................................................................................................................33
Table 6: Additional HDMI Settings Field Descriptions .....................................................................................................................36
Table 7: Additional Closed Caption Settings Field Descriptions..................................................................................................39
Table 8: Subtitle and DVS Settings Field Descriptions.....................................................................................................................41
Table 9: Advanced Audio/Video Settings Field Descriptions........................................................................................................43
Table 10: General Status Diagnostic Field Descriptions..................................................................................................................46
Table 11: Purchase Status Diagnostic Field Descriptions ...............................................................................................................48
Table 12: OOB Diagnostic Field Descriptions......................................................................................................................................50
Table 13: In-Band Status Diagnostic Field Descriptions ..................................................................................................................53
Table 14: Unit Address Diagnostic Field Descriptions .....................................................................................................................55
Table 15: Current Channel Status Diagnostic Field Descriptions ................................................................................................57
Table 17: Code Modules Diagnostic Field Descriptions..................................................................................................................62
Table 18: Memory Configuration Diagnostic Field Descriptions.................................................................................................64
Table 19: Audio/Video Status Diagnostic Field Descriptions........................................................................................................65
Table 20: Interface Status Diagnostic Field Descriptions................................................................................................................70
Table 21: DVR/Hard Drive Status Diagnostic Field Descriptions..................................................................................................72
Table 22: DOCSIS Status Diagnostic Field Descriptions ..................................................................................................................74
Table 23: Application Specific Information Diagnostic Field Descriptions..............................................................................77
Table 24: Interactive Status Diagnostic Field Descriptions ............................................................................................................79
Table 25: Connected Home Diagnostic Field Descriptions............................................................................................................82
Figures
Figure 1: Front and rear views ..................................................................................................................................................................... 2
Figure 2: Front panel....................................................................................................................................................................................... 5
Figure 3: Rear Panel ......................................................................................................................................................................................... 7
Figure 4: Figure 4: Connecting an HDTV — Single Connection for Video/Audio .................................................................13
Figure 5: Connecting an HDTV — Separate Video/Audio Connections ...................................................................................15
Figure 6: Connecting an A/V Receiver — Audio.................................................................................................................................17
Figure 7: Connecting a Standard-definition TV (SDTV) ...................................................................................................................18
Figure 8: Connecting a Standard-Definition TV (SDTV) and VCR/DVD Recorder ..................................................................20
Figure 9: Connecting an A/V Receiver, SDTV, and VCR/DVD.........................................................................................................22
Figure 10: Connecting to an External eSATA DVR/Hard Drive......................................................................................................23
Figure 11: Examples of Data Devices You Can Connect to the DCX3520e-M.........................................................................24
Figure 12: Default User Settings Menu—No HDMI Connection..................................................................................................27
Figure 13: Default User Settings Menu —With HDMI Connection .............................................................................................28
Figure 14: User Settings Menu – Main Menu Screen........................................................................................................................28
Figure 15: Native Mode Settings Menu Screen...................................................................................................................................32
Figure 16: Additional HDMI Settings Screen........................................................................................................................................35

Figures
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Figure 17: : Additional Closed Caption Settings Menu Screen.....................................................................................................38
Figure 18: Subtitle and DVS Settings Menu Screen ..........................................................................................................................40
Figure 19: Advanced Audio/Video Settings Menu Screen .............................................................................................................42
Figure 20: Diagnostic Main Menu Screen .............................................................................................................................................45
Figure 21: General Status Diagnostic Screen.......................................................................................................................................45
Figure 22: Example General Status display (no error)......................................................................................................................46
Figure 23: Purchase Status Diagnostic Screen....................................................................................................................................47
Figure 24: Front panel display for Purchase Status diagnostic.....................................................................................................48
Figure 25: OOB Status Diagnostic Screen .............................................................................................................................................49
Figure 26: Front panel display for the OOB diagnostic....................................................................................................................49
Figure 27: In-Band Status Diagnostic Screen.......................................................................................................................................52
Figure 28: Front panel display for in band diagnostic .....................................................................................................................52
Figure 29: Unit Address Diagnostic Screen..........................................................................................................................................54
Figure 30: Front panel display of a unit address ................................................................................................................................54
Figure 31: Current Channel Status Diagnostic Screens ...................................................................................................................56
Figure 32: Current Channel Status Front Panel Displays ................................................................................................................56
Figure 33: RF Upstream Modem Diagnostic Screen .........................................................................................................................59
Figure 34: RF Upstream Modem Front Panel Display.......................................................................................................................59
Table 16: RF Upstream Modem Diagnostic Field Descriptions ....................................................................................................60
Figure 35: Code Modules Diagnostic Screen.......................................................................................................................................60
Figure 36: Front Panel Display For Code Modules ............................................................................................................................61
Figure 37: Sample Memory Configuration Diagnostic Screen .....................................................................................................64
Figure 38: Audio/Video Status Diagnostic Screen.............................................................................................................................65
Figure 39: Interface Status Diagnostic Screen.....................................................................................................................................69
Figure 40: DVR/Hard Drive Status Diagnostic Screens.....................................................................................................................71
Figure 41: DOCSIS Status Diagnostic Screens .....................................................................................................................................74
Figure 42: Application Specific Information Diagnostic Screen...................................................................................................77
Figure 43: Interactive Status Diagnostic Screen.................................................................................................................................78
Figure 44: Interactive Status Front Panel Display ..............................................................................................................................78
Figure 45: Connected Home Diagnostic Screens ..............................................................................................................................81

Introduction
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Introduction
This manual provides instructions for cable operator personnel to install the ARRIS DCX3520e-M All-
Digital High-Definition Dual Tuner DVR Cable Set-top. This unit includes a high-end processor,
expanded memory, and enhanced graphics to support digital and on-demand broadcast and
interactive services. It provides a full complement of interconnection options.
The DCX3520e-M provides advanced capabilities, including:
• Authorization and purchase of on-demand programming
• Dual High-Definition (HDTV) decode of MPEG-2, MPEG-4 AVC (H.264), and VC-1
• HDTV output through component video (YPbPr) or High-Definition Multimedia Interface (HDMI™ )
• Surround-sound audio through a variety of digital interconnection options
• Dual-tuner DVR functionality to pause and time shift live video and seamlessly record in
conjunction with the Interactive Programming Guide (IPG)
• DOCSIS 2.0+ embedded Cable Modem with support for DSG
• Ethernet and Universal Serial Bus (USB) 2.0 ports for future home networking applications
• Adaptability to various software platforms
As with all ARRIS digital cable set-tops, the hardware features are enabled by core operating and third
party application software.
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Figure 1: Front and rear views
Features
Tuners
• Two all-digital 1 GHz (54 to 1002 MHz) video tuners
• MPEG 2 Main Profile @ High Level (High-Definition)
• MPEG-4 H.264 (AVC) High-Definition decode
• One dedicated tuner for the DOCSIS high-speed data services channel, up to 1 GHz
• One dedicated tuner for the out-of-band (OOB) control channel
Standard Audio/Video Features
• ITU standard 64/256 QAM/FEC/enhanced adaptive equalizer
• Out-of-band data receiver (70 130 MHz) 2.048 Mbps
• Digital video scaling (picture in graphics)
• Accelerated 2-D and 3-D graphics support in hardware
• Macrovision® copy protection
• High-Definition video output through:
ο HDMI (also compatible with DVI using an HDMI-to-DVI converter cable)
ο Component video (YPbPr)
• Standard-Definition video output through Baseband
• Audio output through:

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ο S/PDIF optical digital audio connections
ο One volume-adjustable Baseband L/R stereo analog audio connection
Standard DVR Functionality
• DVR functionality integrated with the IPG enables subscribers to:
• Pause, rewind, fast-forward, or record live TV
• Maintain a personal recorded program library and access it using the IPG
• Select programs to record across multiple channels and time slots
• Rewind and replay recorded programs
• Simultaneously watch two programs, switching easily between them using the swap key
• Record a program in the background while viewing another live program
• Simultaneously record programs from two channels while watching a different pre-recorded
program, with the ability to switch viewing between any of the three programs
ARRIS cannot guarantee the exact amount of programming that each subscriber will be able to record.
The approximate time depends on the programming type and the drive size:
Table 1: DVR recording time guidelines
Estimated Recording Hours For:
Model Drive Size
Standard Digital
Channels
HDTV Channels
DCX3520e-M 500 GB 350 to 700 (MPEG-4)
175 to 350 (MPEG-2)
100 to 160 (MPEG-4)
50 to 60 (MPEG-2)
All times are approximate. The actual hours a subscriber can record are a function of program bit rate,
the IPG type, and the reserved buffer space.
Standard Data Features
• Integrated DOCSIS 2.0+ capable cable modem
• 128MB or 64 MB FLASH memory
• 1024MB or 512 MB DRAM available to platform and applications
• One Universal Serial Bus (USB) 2.0 port
• One eSATA (external SATA) connector, un-powered for data-only connectivity, on the rear panel
• 10/100 Mbps Ethernet Port (RJ 45) on the rear panel
• On board real time RF return (DOCSIS compliant)

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Standard Miscellaneous Features
• Messaging capabilities
• Digital diagnostics
• Full feature access from front panel using a four-digit, seven-segment LED display
Technical Assistance Center
Contact us via the phone: 888-944-HELP (888-944-4357) or 1-215-323-2345
Contact us via the Web: http://moto.force.com/customercare360
Contact us via email: [e-mail]
Calling for Repairs
If an ARRIS set-top requires repair service, please call one of the following ARRIS Authorized Service
Centers:
Company From USA or Canada Outside USA or Canada
World Wide Digital 1-800-227-0450 1-956-541-0600
Teleplan 1-800-352-5274 1-302-322-6088
To ensure efficient service, request a Return for Service Authorization (RSA) number. Be sure to display
the RSA number prominently on all equipment boxes.
The Service Center will provide the shipping address of the location performing your repairs.
To ship your equipment for repair:
• Pack the unit securely, if possible in its original factory shipping carton.
• Print or display the RSA number so it is easily visible on all equipment boxes.
• Enclose a note describing the exact problem. Complete and enclose the checklist provided with the
unit.
• Ship the unit PREPAID to the address provided by the Service Center.

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Overview
Front Panel
The DCX3520e-M is streamlined with only a mechanical power button on the front panel to turn the set-
top on and off. Certain functions, such as those requiring a numeric entry or accessing menus, require a
remote control.
Figure 2: Front panel
Number Description
1 Power — Turns the set-top on and off (standby)
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Video Format Indicators (Front Panel Display)
The front panel display of the DCX3520e-M set-top is equipped with indicators to the right hand side of
the display that are used to indicate the currently-selected video output format on the component
video (YPbPr) and HDMI outputs.
The DCX3520e-M set-top is capable of providing the following video formats on the YPbPr and HDMI
video outputs:
• High Definition 1080i (1920 x 1080 pixels)
• High Definition 1080p (HDMI Only)
• High Definition 720p (1280 x 720 pixels)
• Enhanced Definition 480p (720 x 480 pixels)
• Standard Definition 480i (720 x 480 pixels)
The DCX3520e-M set-top is also capable of passing through High-Definition 1080p 24/30/60 (1920 x
1080 pixels) source content over the HDMI video output.
If you cannot get a video display when the DCX set-top is connected to your television via component
video or standard HDMI cables, use the User Settings Menu to optimize the DCX3520e-M set-top display
settings for your television.
Note: Availability of certain features is dependent upon application support.

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Rear Panel
Figure 3: Rear Panel
Number Description
1Cable In — Connects to cable signal from your service provider
2 Digital Audio (Optical S/PDIF) — Provides Dolby®Digital or PCM output
3 Video outputs / YPbPr — Component video output (HDTV)
4 Audio Out — L/R audio
5 HDMI — High-Definition TV (HDTV) connector
6 Video Out — Composite Video (SDTV)
7 eSATA* — External Serial Advanced Technology Attachment disk interface
8 USB* 2.0 — High-Speed peripheral device connection
9 Ethernet* — Network connection
10 External IR Input — Connects to a remote control set-top accessory cable
Data test connector (service personnel only)
11 Power connector
* Availability of certain features is dependent upon application support.

Installation
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Installation
Before you move or change components on the subscriber’s entertainment system:
• Review the installation instructions.
• Determine if you are connecting the set-top to the TV by the composite (baseband) video input or a
High-Definition video input (component video, or HDMI.
• Determine if the subscriber has other equipment to be connected to the terminal (home theater or
A/V receiver, VCR, etc.).
• Verify that you have the necessary cables and other required items.
• If the terminal was previously used, clear its hard drive before installing it at a new subscriber
location.
Cold Reset Procedure
This section describes the Cold Reset procedure for the ARRIS DCX3520e-M set-top. The cold reset is
generally used by operational and field personnel to accomplish the following:
• Restore the set-top to a known state.
• Clear channel maps and application settings.
• Remove application and software objects above the platform code.
• Clear the Out of Band (OOB) Last Known Carrier (LKC) and force the units to hunt for a new OOB
control channel.
Remote Control Cold Reset
1. Remove the set-top from its packaging.
2. Apply AC power to the set-top.
3. Point the remote control at the set-top and press the SELECT key.
4. The POWER LED on the front panel begins to flash slowly.
5. Release the SELECT key.
6. Within 2 seconds, press the 3 key on the remote control.
7. The POWER LED flashes quickly.
8. Within 2 seconds, press the 2 key on the remote control.
9. The POWER LED will flash slowly.
10. Within 2 seconds, press the 8 key on the remote control.
11. The POWER and MESSAGE LEDs flash two times, and the set-top performs a cold reset operation.
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-Definition DVR DCX3520e-M •Installation Manual
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Clearing the Hard Drive
On a previously-used cable terminal, delete all recorded programs from the hard drive before installing
it at a new subscriber location. This prevents the new subscriber from viewing programming they may
not have purchased or may not want to see.
To prevent subscribers from accidentally deleting all of their recorded programs, a specific set of
keystrokes is required to clear the hard drive. The DCX3520e-M does not need to be connected to a
television in order to clear the hard drive using this process.
To clear the hard drive:
1. Start the diagnostics as described in the Using the Diagnostics section; d 01 is displayed on the
front panel display.
2. Using a remote control, within five seconds, press REPLAY, MY DVR three times, and LIVE TV. (On
some remote controls, the MY DVR key may be labeled LIST.)
3. If you correctly enter this key sequence in five seconds or less, the hard drive is cleared and the
front panel displays Clr.
4. If Clr is not displayed, re-enter the key sequence in step 2.
5. If Clr is displayed, press any other key on the remote control to reset the terminal, turn it off, and
complete the clearing process.

Installation
High
-Definition DVR DCX3520e-M •Installation Manual
10
365
-095-25080-x.1
Video Connection Options
Use the following guidelines to determine the best video connection for the subscriber home
entertainment system. To determine the available video inputs on the TV, check the manual supplied
with the TV or the TV itself.
The DCX3520e-M offers the following video outputs:
Connection Type TV Type Options
Component (YPbPr) HDTV and SDTV The YPbPr output, providing three component analog video
signals to the TV, is the most widely supported HD video
connection.
HDMI HDTV and SDTV • HDMI provides higher-quality digital HD video signals than
component video signals. If the TV has an HDMI or a DVI
input, use the HDMI output.
• HDMI is a video and audio connection. If you use HDMI, no
separate audio connection to the TV is required.
• HDMI is compatible with DVI. If the TV has a DVI input, you
can use an HDMI-to-DVI converter cable or adapter to connect
the DVI-equipped TV to the HDMI-equipped DCX3520e-M.
Video (composite) SDTV only The composite video is an analog video connection for SDTV
services and requires a separate audio connection.