DVIGear DVI-3331a User manual

User Guide
AV-PC-DVI to PC-DVI Converter / Scaler
DVI-3331a

TABLE OF CONTENTS
SECTION PAGE
PRODUCT SAFETY ....................................1
PRODUCT LIABILITY...................................1
1.0 INTRODUCTION ...................................2
2.0 SPECIFICATIONS ..................................3
3.0 PACKAGE CONTENTS ..............................5
4.0 CONNECTING THE HARDWARE......................6
5.0 OPERATING THE UNIT..............................8
6.0 TROUBLESHOOTING ..............................11
7.0 LIMITED WARRANTY ..............................12
8.0 REGULATORY COMPLIANCE .......................12

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WARNING – Product Safety
1. Do not dismantle the product housing or modify the printed circuit board
module as this may result in electrical shock or burn.
2. Do not attempt to service this product yourself as opening or removing the
product housing may expose you to dangerous voltages or other hazards.
Refer all servicing to qualied service personnel.
3. Keep this product away from liquids. Spills into the product housing may
result in re, electrical shock, or equipment damage. If liquid spills into the
housing, unplug the product immediately. Have the product checked by a
qualied service engineer before using it again.
4. Place the product in an even and stable location. If the product falls or is
dropped, it may cause an injury and/or malfunction.
5. Avoid exposing the product to extreme temperatures or to high humidity
levels as this may result in damage to the product.
6. Only use the supplied External AC Power Adapter. The use of other power
adapters may cause this product to fail or may cause a re.
7. Do not twist or exert excessive force on the ends of the connected cables as
this can cause them to malfunction. Take care to ensure that all connected
cables are not forced to bend more than their minimum bend radius.
Product Liability Statement
Every effort has been made to ensure that this product is free of defects.
DVIGear cannot be held liable for the use of this product or for any direct or
indirect consequential damages arising from its use. It is the responsibility
of the users of this product to check that it is suitable for their requirements
and that it is installed correctly. DVIGear reserves the right to revise any of its
hardware and software following its policy to modify and/or improve its products
where necessary or desirable. This statement does not affect the legal rights of
the user in any way.
DVIGear and DVIGear & Design are trademarks of DVIGear, Inc. and may not be
used without the prior written permission of DVIGear, Inc.
All third-party trademarks and copyrights are recognized. HDMI™ is a
registered trademark of HDMI LLC. All other trademarks are the property of their
respective holders.
© 2007, 2011, 2012, 2014, 2018 DVIGear, Inc. All rights are reserved. No part of
this manual may be reproduced or transmitted by any form or means, electronic
or mechanical, including photocopying, recording or by any information storage or
retrieval system, without the prior written consent of DVIGear.

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1.0 INTRODUCTION
The model DVI-3331a is a versatile Converter / Scaler that provides selection of
three input signal formats: Component Video, Analog RGB and DVI (or HDMI).
The selected input signal is converted to both an analog RGB output and a
digital DVI output signal, which allows the unit to function simultaneously as a
VGA to DVI and DVI to VGA converter.
The DVI-3331a accepts a wide range of input signal resolutions and supports
pixel clock rates up to 165 MHz. Two high performance scaling engines
provide user-selectable output resolutions up to 1080p and 1920x1200. The
unit is controlled via intuitive on-screen menus, which can be accessed via front
panel controls or by an included IR remote control unit. These features make
this unit an ideal solution for applications where legacy analog video sources
and displays must be integrated into digital HDMI / DVI systems.
Our digital video distribution products have been serving the professional AV
industry for more than fteen (15) years. Today, DVIGear®offers a full range
of high performance products including: scalable AV-Over-10GbE Systems,
Switchers, Splitters, Scalers, Up/Down/Cross-Converters, Format Converters,
as well as a wide range of long-reach Digital Cables, Extenders, and Fiber Optic
Transmission systems.
1.1 Features
The model DVI-3331a has several unique and innovative features:
• Supports HDTV inputs up to 1080p and PC inputs up to 1920x1200 resolution
• User-selectable output resolutions up to 1080p and 1920x1200 / 60Hz
• Supports HDMI / DVI input signals with or without HDCP encryption
• Supports RGB analog, YPbPr and YCbCr Component Video inputs
• Dual Output Converter, simultaneous analog RGB and digital DVI outputs
• Equipped with 3D Motion-Adaptive De-Interlacing and Digital Noise Reduction
• Supports 3:2 Pull-Down with 2:2 Pull-Down Recovery
• Controllable via front panel and IR remote
• Locking DC power connector for added security
• Auto-Power Recovery and Auto-Memory Restore
• Intuitive On-Screen Display menus make setup quick and easy
• Rugged low-prole metal enclosure

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2.0 SPECIFICATIONS
Performance
Format Compliance DVI v1.0 and HDCP v1.1
Video Input Formats Component Video: YPbPr / YCbCr; DVI-D: RGB,H,V; HD-15: RGB,H,V
Maximum Pixel Clock Frequency 165 MHz
Maximum Video Bit Rate 1.65 Gbps (single-link)
Supported Color Depth 8-bit
Input Connections
Component Video Input 1x 3x RCA female connectors
Analog RGB Input 1x HD15 (VGA) female connector
HDMI / DVIInput 1x DVI 29-pin female connector
Power Input 1x 5.5 / 2.5 mm locking connector
Output Connections
Analog RGB Output 1x HD15 (VGA) female connector
DVI Output 1x DVI 29-pin female connector
Scaling Engine
Phase Lock Loops 8-bit, Triple-Analog-to-Digital Converter
De-Interlacing 3D Motion-Adaptive De-Interlacing
Pull-Down 3:2 with 2:2 recovery
Noise Reduction 3D
Display Settings Contrast, Brightness, Hue, Sharpness, Saturation, R-G-B Levels,
Aspect Ratio, Noise Reduction
Control
Front Panel 4x Buttons with On-Screen Display navigation
IR Remote Control IR Remote Control with On-Screen Display navigation
Mechanical
Dimensions (H-W-D) 1.0” x 7.1” x 5.3” (26.0 mm x 180.1 mm x 135.3 mm)
Weight 17.3 oz (490 g)
Construction Rugged low-prole metal enclosure with jet black nish
Environmental
Operating Temperature +32° to +122° F (0° to +50° C)
Storage Temperature +14° to +158° F (-10° to +70° C)
Humidity (storage / operating) 10% to 90% (non-condensing)
Power Requirements
External AC Power Adapter Input: 100~240VAC / 50-60Hz, Output: 5VDC, 2.6A
Power Consumption 5 VDC, 1.2 Amps, 6 Watts
Regulatory Approvals
Converter / Scaler unit FCC, CE, RoHS
ACPower Adapter FCC, CE, UL, C-UL, CEC, GS, PSE, RoHS
Warranty
Limited Warranty 3 Years Parts and Labor
Model Number
DVI-3331a AV-PC-DVI to PC-DVI Converter / Scaler
Accessories Included
1x External AC Power Adapter, 1x IR Remote Control Unit, 1x User Guide
Optional Accessories
International AC Power Adapter (Euro, UK, Australia)

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2.1 Supported Input Formats and Resolutions
The DVI-3331a accepts digital DVI or HDMI (using an adapter cable), as well as
analog RGB and analog Component Video via separate input connections. The
table below lists the supported input formats and resolutions:
Input Resolution Vertical Rate
(Hz)
Scan
Format
Signal Format /
Connectors
480i 720x480 60 (NTSC) Interlaced
YCbCr via 3x RCA
576i 720x576 50 (PAL) Interlaced
480p 720x480 60 Progressive
YPbPr via 3x RCA
RGB,H,V via HD15 and DVI
576p 720x576 50 Progressive
720p 1280x720 50,60 Progressive
1080p 1920x1080 50,60 Progressive
1080i 1920x1080 50, 60 Interlaced YPbPr via 3x RCA
RGB,H,V via DVI
VGA 640x480 60, 72, 75, 85 Progressive
RGB,H,V via HD15 and DVI
SVGA 800x600 56, 60, 72, 75, 85 Progressive
XGA 1024x768 60, 70, 75, 85 Progressive
SXGA 1280x1024 60, 75, 85 Progressive
UXGA 1600x1200 60 Progressive
WXGA 1280x800 60 Progressive
WSXGA 1680x1050 60 Progressive
WUXGA 1920x1200 60 Progressive

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2.2 Supported Output Formats and Resolutions
The DVI-3331a provides several output resolutions in DVI and RGB,H,V formats:
Output Resolution Vertical Rate
(Hz)
Scan
Format
Signal Format /
Connectors
480i 720x480 60 Interlaced
RGB,H,V via HD15 and DVI
576i 720x576 50 Interlaced
480p 720x480 60 Progressive
576p 720x576 50 Progressive
720p 1280x720 50, 60 Progressive
1080i 1920x1080 50, 60 Interlaced
1080p 1920x1080 50, 60 Progressive
VGA 640x480 60 Progressive
SVGA 800x600 60 Progressive
XGA 1024x768 60 Progressive
SXGA 1280x1024 60 Progressive
SXGA+ 1400x1050 60 Progressive
UXGA 1600x1200 60 Progressive
WXGA 1280x800 60 Progressive
WXGA+ 1440x900 60 Progressive
WSXGA 1680x1050 60 Progressive
WUXGA 1920x1200 60 Progressive
3.0 PACKAGE CONTENTS
Before attempting to use this unit, please check the packaging and make certain
the following items are contained in the shipping carton:
• 1x DVI-3331a AV-PC-DVI to PC-DVI Converter / Scaler
• 1x External AC Power Adapter
• 1x IR Remote Control
• 1x User Guide
Note: Please retain the original packing material in case you need to return the unit. If you
nd any items are missing, contact your reseller or DVIGear immediately. Please have the
Model Number, Serial Number, and Invoice Number available for reference when you call.

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4.0 CONNECTING THE HARDWARE
Please study the following front panel and back panel drawings in order to
become familiar with connector locations and control functions:
1Component Video Input: supports YPbPr and YCbCr formats
2Infrared Receiver
3Status LEDs: indicates selected source type
4MENU / ENTER: press to access OSD Menus; also acts as “ENTER” key
5Multi-function Keys: see note at the top of page 7
6Power ON /OFF: press to power the unit on or off
1DC Power Input: locking female connector for AC Power Adapter
2DVI Output: female connector; connect to a DVI or HDMI display
3PC Output: HD-15 pin female; connect to an analog RGBHV display
4DVI Input: female connector; connect to a DVI or HDMI source
5PC Input: HD-15 pin female; connect to an analog RGBHV source

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Note: The functions of the “+” and “-” keys change depending on whether or not the OSD
Menus are present. When the OSD Menus are present (activated by pressing the Menu
control button), the “+” and “-” keys allow navigation through the various menu parameters.
When the Menus are not present, the “-” key will automatically adjust the picture centering,
color, etc. for the analog input signals (Component Video or PC). The “+” will sequentially
step through the different inputs of the Converter / Scaler.
This Converter / Scaler uses advanced signal processing that will automatically
accept, identify, and scale (when required), a wide array of input formats and
resolutions. Since the output resolution of this Converter / Scaler is user-
selectable, it is advisable to set the scaler unit’s output resolution to match the
native resolution of the connected display. Please consult your owner’s manual in
order to determine your display’s native resolution.
When using the DVI-D output signal (digital only), you must use a display or other
destination device that has a compatible DVI or HDMI input. You can connect the
output of this unit to a DVI destination device (e.g. PC display) using a DVI cable
or to an HDMI destination device (e.g. HDTV display) using a DVI to HDMI cable.
Please consult DVIGear for assistance in cable selection.
Note: This product accepts HDMI signals on the DVI input port. However, it does not
transmit any embedded audio on the output.
Remove power from the source and destination devices. Referring to the
product images on page 6, connect the appropriate cables to all inputs and
outputs, taking care to use high quality cables. Note that low quality cables can
cause serious image quality degradation, as well as limit the maximum possible
distance between the Converter / Scaler and the source and destination devices.
Cable selection is especially important for long DVI and HDMI cables due to the
high bit rates of these digital signals. For best results use DVIGear’s Super High
Resolution™ (SHR™) DVI and HDMI cables.
After the cables are connected, connect the supplied AC Power Adapter to the
DVI-3331a. Use only the furnished power adapter to avoid the possibility of
equipment damage.
Plug the AC Power Adapter into the unit and into an AC wall outlet and press the
Power button to activate the unit. Verify that one of the red Status LEDs lights up,
indicating that power has been applied to the unit. Lastly, supply power to the
source and destination devices. Press the Power button on the DVI-3331a to turn
the unit OFF / ON again as needed. In the event of a power outage, this unit will
automatically power ON and restore the last used settings as soon as power is
reapplied to the unit.
Note: This product utilizes a “Twist-Lock” DC power connector to prevent the power cable
from coming loose. Insert the DC plug into the power input jack on the rear panel, then
gently twist the plug a quarter turn in the clockwise direction to lock it in place. To remove
the power connection, simply rotate the DC plug a quarter turn counter-clockwise and then
extract the power cable.

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5.0 OPERATING THE UNIT
The DVI-3331a can be operated either from the front panel controls or via the
supplied IR Remote Control unit. Since IR is the control method preferred by
most users, please take a moment to familiarize yourself with the location and
function of the control buttons on the IR Remote Control unit.
Note: Please use the OSD menu for resolutions not directly accessible from the IR remote.
Regardless of whether you operate the scaler from the front panel or with the
IR Remote Control unit, it is important to become familiar with the On-Screen
Display (OSD) Menu structure in order to take full advantage of the capabilities
this product has to offer.
Toggle through
the Inputs
Select PC Input
Select DVI Input
Select OSD Menu
Navigate Menus
and Adjustments
Select Auto-Adjust
Function
Select YPbPr
Input
Select Output
Resolution
Exit Menu
Reset to Factory
Default Settings
Power On/Off

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5.1 Menu Structure
The OSD Menu structure is as follows:
High Level Secondary
Level Adjustment
VIDEO
(Component In)
Picture Mode (1) User / Standard / Movie / Vivid
Contrast 0-100 Relative Contrast Adjustment
Brightness 0-100 Relative Brightness Adjustment
Hue 0-100 Relative Hue Adjustment
Saturation 0-100 Relative Saturation Adjustment
Sharpness 0-100 Relative Sharpness Adjustment
Scale Full / Overscan / Underscan / Letter Box / Pan Scan
Noise Reduction Low / Middle / High / Off
Exit Return to High Level Menu
PC MENU (2)
(DVI or HD15 In)
Contrast 0-100 Relative Contrast Adjustment
Brightness 0-100 Relative Brightness Adjustment
H-Position 0-100 Relative Horizontal Position Adjustment
V-Position 0-100 Relative Verticle Position Adjustment
Clock 0-100 Relative Clock Adjustment
Phase 0-100 Relative Phase Adjustment
Scale Full / Overscan / Underscan / Letter Box / Pan Scan
Exit Return to High Level Menu
COLOR User 0-100 Relative Red / Green / Blue Color Level
Normal Picture has a calibrated color temperature
Warm Picture has a slightly reddish appearance
Cool Picture has a slightly Bluish appearance
Exit Return to High Level Menu
OUTPUT NATIVE / VGA / SVGA / XGA / SXGA / UXGA / 480i / 480p / 720p@60Hz /
1080i@60Hz / 1080p@60Hz / 576i / 576p / 720p@50Hz / 1080i@50Hz /
1080p@50Hz / WXGA / WSXGA / WUXGA / WXGA+ / SXGA+
OSD H-Position 0-100 OSD Horizontal Position
V-Position 0-100 OSD Vertical Position
Timer 0-100 OSD Menu Timeout (seconds)
Background 0-100 OSD Menu Transparent Level
Display OFF / ON / Info
INFORMATION Source (Input Interface)
Input (Input Resolution)
Output (Output Resolution)
Version (Firmware Version)
Note: To exit the Menu, navigate to the information screen and press Menu.
Note 1: In any preset Picture Mode, only Scale and Noise Reduction is available in the
Video Menu.
Note 2: H-Position and V-Position adjustments are only available on the HD15 input.

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The selection of the Video Menu or PC Menu is made automatically based on
the selected input signal. The Video Menu offers additional functions, including
Picture Mode and NR (Noise Reduction).
The Picture Mode Function has four settings: User, Standard, Movie and Vivid.
When the Picture Mode is set to Standard, Movie or Vivid, the Brightness, Contrast,
Hue, Saturation and Sharpness adjustments are set to xed values in order to
optimize the appearance of the image. To change these settings, select User in the
Picture Mode menu. Changes made to these settings will be saved to the unit’s
memory and can be recalled at any time by selecting User in the Picture Mode.
The Scale Function has ve user selections: Letterbox, Overscan, Panscan,
Underscan, and Full. The Scale function is used to alter the Aspect Ratio of the
output signal in order to achieve a desired format on the display or destination
device. The following are the menu selections for the Scale function and their effects:
Letterbox Remaps the picture content to a letterbox format within the new resolution. Best
used to remap source content from 4:3 aspect ratio to 16:9.
Overscan Remaps the picture content larger than the original image in order to reduce the
black bars at the top and bottom of a 16:9 letterbox source.
Panscan
Remaps the picture content to a smaller size than the output resolution and centers
the content in the middle of the image. Best used to remap source content from
letterbox or 16:9 aspect ratio to 4:3.
Underscan Remaps the picture content to a smaller size than the output resolution.
Full Remaps the picture content to full output resolution. This setting should be used
with high resolution data to maximize clarity.
The NR (Noise Reduction) Function has four choices: Low, Middle, High and Off.
For most applications it is recommend that this setting be left in the Off position.
The Color Menu allows selection of four color temperature presets:
Warm Picture has a slightly reddish appearance
Cool Picture has a slightly bluish appearance
Normal Picture has a calibrated color temperature
User User-denable color temperature
The Output Menu allows user selection of the desired output resolution. For best
results, it is usually recommended to set the unit’s output resolution to match the
native resolution of the connected display. Please consult your owner’s manual
in order to determine your display’s native resolution. Keep in mind that selecting
an output resolution that is not supported by your display can cause an apparent
malfunction.
The OSD Menu allows you to customize the way the On-Screen Display appears
when it has been accessed.
The Info Menu contains technical information. If you have problems with this unit
and require assistance, a technician may ask you to read information from this
menu as part of the troubleshooting process.

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5.2 Menu Navigation
Press the MENU / ENTER button to display the OSD menu. Once the menus
are displayed, use the “+” and “-” keys to navigate through the menu structure.
The “+” key will move the cursor to the right or down. The “-” key will move the
cursor to the left or up. Once the desired function has been highlighted, press
the MENU / ENTER key to select the function. Once the function has been
selected, use the “+” and “-” keys to increase or decrease the desired value,
then press the MENU / ENTER key to save the adjustment. To escape the OSD
menus, use the “+” or “-” keys to highlight the EXIT selection, and then press
the MENU / ENTER key, or simply press the MENU / ENTER key repeatedly.
For remote control access, press the MENU key on the IR Remote Control unit
to display the OSD menus. Use the arrow keys to navigate through the OSD
menus. Once the function has been highlighted, press the OK key to select it,
and then use the arrow keys to make the desired adjustment. Press the OK key
to save the adjustment. Press the EXIT key to escape from the OSD menus.
6.0 TROUBLESHOOTING
In the event that the DVI-3331a Converter / Scaler does not appear to be
functioning properly, make certain that the source and all other devices
connected to the unit are functioning correctly by connecting each source
device directly to a compatible display using a short cable. This will aid in the
elimination of a source being the issue. If the signal is present under these
conditions, make certain that the External AC Power Adapter is plugged in and
delivering power to the scaler.
The cables should be undamaged and as short as possible and of premium
quality (such as DVIGear’s Super High Resolution™ cables) as discussed in
Section 4.
As a nal step, return the unit to the factory default settings by pressing the
RESET key on the IR Remote Control unit.
If the problem persists after trying the above suggestions, please contact your
dealer for additional assistance. If the dealer’s technical personnel are unable
to assist you, please contact DVIGear via telephone at 1.888.463.9927 (toll-free
for United States and Canada) or 1.770.421.6699. You may contact DVIGear by
e-mail at [e-mail].

7.0 LIMITED WARRANTY
LIMITED WARRANTY – Subject to the limitations stated below, DVIGear warrants
that this product will be free from defects in materials and workmanship for a
period of three (3) years from the date of purchase.
Should the product, in DVIGear’s opinion, prove defective within the warranty
period stated above, DVIGear, at its option, will repair or replace this product
without charge. Any defective parts replaced become the property of DVIGear.
This warranty does not apply to products that have been damaged due to accident,
unauthorized alterations, improper repair, modications, inadequate maintenance
and care, or use in any manner for which the product was not intended.
If repairs are necessary under this warranty policy, the original purchaser must
obtain a Return Authorization Number from DVIGear and return the product freight
prepaid to a location designated by DVIGear. After repairs are complete, the
product will be returned, freight prepaid.
The foregoing warranty is the sole and exclusive warranty given by DVIGear,
express or implied, and DVIGear disclaims all implied warranties, including but not
limited to implied warranties of merchantability or tness for a particular use.
LIMITATIONS – The liability of DVIGear with respect to any defective products
will be limited to the repair or replacement of such products. In no event shall
DVIGear be responsible or liable for any damage arising from the use of such
defective products, including but not limited to loss of use, revenue or prot,
whether such damages are direct, indirect, consequential or otherwise and
whether such damages are incurred by the reseller, end-user, or any third-party.
8.0 REGULATORY COMPLIANCE
This product is compliant with appropriate FCC, CE and RoHS rules and
regulations. The supplied AC Power Adapter is compliant with FCC, CE, UL,
C-UL, CEC, GS, PSE and RoHS rules and regulations.
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www.dvigear.com
Your Digital Connectivity Experts
Toll Free 888.463.9927
Phone [phone]
Fax [phone]
DVIGear, Inc.
1059 Triad Court, Suite 8
Marietta, Georgia 30062-2258
DVI-3331a-UG-05 / July.2018