Kramer VP-481 User manual

KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
VP-481
DVI to 3G HD-SDI Scaler
P/N: 2900-300008 Rev 4

VP-481 – Contents i
Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
3Overview 3
4Defining the VP-481 DVI to 3G HD-SDI Scaler 4
5Connecting the VP-481 DVI to 3G HD-SDI Scaler 6
6Operating the VP-481 DVI to 3G HD-SDI Scaler 7
6.1 Using the Front Panel Buttons 7
6.2 Using the OSD 7
7Technical Specifications 11
Figures
UFigure 1: VP-481 DVI to 3G HD-SDI Scaler Front PanelU4
UFigure 2: VP-481 DVI to 3G HD-SDI Scaler Rear PanelU5
UFigure 3: Connecting the VP-481 DVI to 3G HD-SDI ScalerU6

VP-481 - Introduction 1
1
1 Introduction
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been
providing a world of unique, creative, and affordable solutions to the vast range of
problems that confront the video, audio, presentation, and broadcasting
professional on a daily basis. In recent years, we have redesigned and upgraded
most of our line, making the best even better!
Our 1,000-plus different models now appear in 11 groups that are clearly defined
by function: GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix
Switchers; GROUP 3: Control Systems; GROUP 4: Format/Standards Converters;
GROUP 5: Range Extenders and Repeaters; GROUP 6: Specialty AV Products;
GROUP 7: Scan Converters and Scalers; GROUP 8: Cables and Connectors;
GROUP 9: Room Connectivity; GROUP 10: Accessories and Rack Adapters and
GROUP 11: Sierra Products.
Congratulations on purchasing your Kramer VP-481 DVI to 3G HD-SDI Scaler
which is ideal for the following typical applications:
•Broadcast studios for scaling and conversion from DVI sources
•Scaling to 3G HD-SDI for rental and staging events
•Format conversion and scaling

2 VP-481 - Getting Started
2 Getting Started
We recommend that you:
•Unpack the equipment carefully and save the original box and packaging
materials for possible future shipment
•Review the contents of this user manual
•Use Kramer high performance high resolution cables
i
Go to http://www.kramerelectronics.com to check for up-to-date
user manuals, application programs, and to check if firmware
upgrades are available (where appropriate).
2.1 Achieving the Best Performance
To achieve the best performance:
•Use only good quality connection cables to avoid interference, deterioration
in signal quality due to poor matching, and elevated noise levels (often
associated with low quality cables)
•Avoid interference from neighboring electrical appliances that may adversely
influence signal quality
•Position your Kramer VP-481 away from moisture, excessive sunlight and
dust
!
Caution: No operator serviceable parts inside the unit
Warning: Use only the Kramer Electronics input power wall
adapter that is provided with the unit
Warning: Disconnect the power and unplug the unit from the wall
before installing

VP-481 - Overview 3
3
3 Overview
The Kramer VP-481 DVI to 3G HD-SDI Scaler is a high-performance digital scaler
for signals up to 3G HD-SDI. It up-scales and down-scales DVI/HDMI signals up to
WUXGA and 1080p resolutions to SDI, HD-SDI and 3G HD-SDI. The following
input resolutions are supported:
•PC: SVGA, XGA, 1360x768, WXGA, SXGA, 1440x900, SXGA+, WSXGA+,
UXGA, WUXGA, 720x576 @50, 720x480 (NTSC), 1280x720 @50/60
(HD 720), 1920x1080 @50/60 (HD 1080)
•SDTV: 480p and 576p
•HDTV: 720p @50/60Hz, 1080i @50/60Hz and 1080p @50/60Hz
The VP-481 also features:
•A maximum data rate of 3Gbps
•Multi-standard operation: SDI (SMPTE 259M), HD-SDI (SMPTE 292M) and
3G HD-SDI (SMPTE 424M)
•An OSD (On-screen Display) accessible via the front panel buttons for easy
setup and adjustment
•A built-in ProcAmp for convenient signal adjustment
•A non-volatile memory that retains the last settings used
•A freeze button
•A DVI/HDMI video input
•Two SDI outputs (up to 3G HD-SDI)
•S/PDIF digital and unbalanced stereo audio inputs
•An external 5V DC source, making it suitable for field operation
•Operation directly via the front panel push buttons and the OSD

4 VP-481 - Defining the VP-481 DVI to 3G HD-SDI Scaler
4 Defining the VP-481 DVI to 3G HD-SDI Scaler
Figure 1defines the front panel of the VP-481.
Figure 1: VP-481 DVI to 3G HD-SDI Scaler Front Panel
VP-481 Front Panel Features
# Feature Function
1 ON LED Lights green when the unit is powered on
2 INPUT LED Lights blue when a DVI/HDMI signal is detected on the input
3 MENU Button Press to display the OSD (On-screen Display) menu.
When the OSD is not displayed, press together with the – button to
set the output resolution to 720p (1280x720)
4 ENTER
Button
In the OSD, press to select the highlighted menu item.
When the OSD is not displayed, press together with the + button to
set the output resolution to 1080p (1920x1080)
5 – Button In the OSD, press to step up through the options or to decrement the
parameter value
6 + / FREEZE
Button
In the OSD, press to step down forward through the options or to
increment the parameter value.
When the OSD is not displayed, press to freeze the display

VP-481 - Defining the VP-481 DVI to 3G HD-SDI Scaler 5
5
Figure 2defines the rear panel of the VP-481.
Figure 2: VP-481 DVI to 3G HD-SDI Scaler Rear Panel
VP-481 Rear Panel Features
# Feature Function
1 DVI/HDMI Connector Connect to the DVI/HDMI source
The HDMI source must not have HDCP encryption. When
copy protection is detected, the output of the device is
disabled
2
AUDIO INPUTS Audio
Input Connectors
S/PDIF RCA Connector
3 LEFT Channel Unbalanced Stereo Audio RCA Connector
4 RIGHT Channel Unbalanced Stereo Audio RCA
Connector
5 SDI OUT 1 and 2 BNC
Connectors
Connect to the SDI acceptors. The signal is re-clocked
and equalized
6 5V DC Connect to the +5V DC power adapter, center pin positive

6 VP-481 - Connecting the VP-481 DVI to 3G HD-SDI Scaler
5 Connecting the VP-481 DVI to 3G HD-SDI
Scaler
!
Always switch off the power to each device before connecting it to your
VP-481. After connecting your VP-481, connect its power and then
switch on the power to each device.
Figure 3: Connecting the VP-481 DVI to 3G HD-SDI Scaler
To connect the VP-481 as illustrated in the example in Figure 3:
1. Connect the DVI/HDMI source (for example, a multimedia player) to the
DVI/HDMI IN DVI connector.
2. Connect the unbalanced stereo audio source (for example, an audio player)
to the AUDIO INPUTS LEFT and RIGHT RCA connectors.
3. Connect the SDI OUT BNC connectors to the SDI acceptors (for example, a
display and an SDI VTR).
4. Connect the power adapter to the 5V DC power socket and to the mains
electricity (not shown in Figure 3).

VP-481 - Operating the VP-481 DVI to 3G HD-SDI Scaler 7
7
6 Operating the VP-481 DVI to 3G HD-SDI
Scaler
The VP-481 is operated directly via the front panel buttons and via the OSD menu.
6.1 Using the Front Panel Buttons
During normal operation (without the OSD), the front panel buttons perform in the
following manner:
•MENU: Displays the OSD Main Menu (see Section 6.2
•FREEZE: Freezes the display. Press a second time to unfreeze the display
). Press a second
time to close the OSD
•MENU and –: Press together to set the output to 720p (1280x720)
•ENTER and FREEZE: Press together to set the output to 1080p
(1920x1080)
6.2 Using the OSD
The OSD is used to set a variety of parameters.
When using the OSD, the front panel buttons operate in the following manner:
•MENU: Opens the OSD main menu (see Section 6.2
•ENTER: Selects the highlighted menu item or parameter
). Press a second time
to close the OSD
•– : Steps up through the menu list or decrements the parameter value
•+ : Steps down through the menu list or increments the parameter value
Note: After a preset period with no button activity, the OSD menu times-out
automatically (see Section 6.2.4
).

8 VP-481 - Operating the VP-481 DVI to 3G HD-SDI Scaler
Example of Setting a Parameter
To set the blue color value of the display output to 42:
1. From normal operation, press MENU.
The OSD main menu appears on the screen.
2. Press the + or –button to highlight COLOR.
COLOR changes to green.
3. Press ENTER.
The Color submenu is displayed.
4. Press the + or –button to highlight BLUE.
BLUE changes to green.
5. Press ENTER.
The BLUE parameter changes to blue.
6. Press the + or – button to change the value to 42.
7. Press ENTER to set the value.
BLUE is highlighted in green.
8. To exit to normal operation, press MENU.
6.2.1 The Main Menu
VP-481 Main Menu Parameters and Functions
Parameter Function Value Range Factory
Default
CONTRAST Sets the output
contrast
0-100 50
BRIGHTNESS Sets the output
brightness
0-100 45
FINETUNE COLOR
FILTER
Set the color filter on
or off for best results
in applications where
there is colored
tinting within detailed
picture areas (for
example, text)
ON, OFF OFF
COLOR Sets the output color parameters (see Section 6.2.2)

VP-481 - Operating the VP-481 DVI to 3G HD-SDI Scaler 9
9
VP-481 Main Menu Parameters and Functions
Parameter Function Value Range Factory
Default
SIZE Sets the output
size/aspect ratio
FULL, PANSCAN,
LETTERBOX,
UNDERSCAN,
OVERSCAN, BEST FIT
FULL
OUTPUT Sets the output
resolution
720p @60
1080p SF30/29/25
1080p @30/29/25/24/23
1080p @59
1080i @59
720p @59
480i @59
576i
1080p @50
1080i @50
720p @50
1080p @60
1080i @60
1080p
@60
AUDIO Sets the output audio parameters (see Section 6.2.3)
OSD Sets the on-screen display parameters (see Section 6.2.4
FACTORY RESET
)
Resets all parameters to factory defaults
INFORMATION Displays current source, input resolution, output resolution and
firmware version
AUTO SYNC OFF When on, de-activates the output after a
few minutes if no input is present.
For example, when the output is
connected to a projector, the projector
shuts down automatically when there is
no input
ON,
OFF
OFF
EXIT Exits the Main menu
6.2.2 The Color Submenu
The Color submenu sets the display output color parameters.
VP-481 Color Submenu Parameters and Functions
Parameter Function Value Range Factory
Default
RED Sets the output red value 0-100 47
GREEN Sets the output green value 0-100 47
BLUE Sets the output blue value 0-100 47
EXIT Exits the Color submenu

10 VP-481 - Operating the VP-481 DVI to 3G HD-SDI Scaler
6.2.3 The Audio Submenu
The Audio submenu sets the audio output source, delay and muting.
VP-481 Audio Submenu Parameters and Functions
Parameter Function Value Range Factory
Default
SOURCE Sets the source of the audio
signal
HDMI, L/R, S/PDIF HDMI
DELAY Sets the audio signal delay 40ms, 110ms, 150ms, OFF OFF
SOUND Turns the audio on or off ON, MUTE ON
MUTE
FOLLOWS
FREEZE
When on, the picture freezes
and the audio is muted when
the Freeze button is pressed.
When off, the picture freezes
but the audio continues when
the Freeze button is pressed
ON, OFF ON
EXIT Exits the Display menu
6.2.4 The OSD Submenu
The OSD submenu sets the on-screen display horizontal/vertical position, timer
and background characteristics.
VP-481 OSD Submenu Parameters and Functions
Parameter Function Value Range Factory
Default
H-POSITION Sets the horizontal position of the OSD 0-100 10
V-POSITION Sets the vertical position of the OSD 0-100 90
TIMER Sets the time that the OSD is displayed
before it times-out
5-100 10
BACKGROUND Sets the transparency of the OSD
background
0, 13, 25, 38, 50,
63, 75, 88, 100
63
DISPLAY Sets the input resolution notification
pop-up
INFO, OFF, ON INFO
EXIT Exits the Display menu

VP-481 - Technical Specifications 11
11
7 Technical Specifications
INPUTS: VIDEO: 1 DVI/HDMI on a DVI-I connector
AUDIO: 1 S/PDIF digital audio on an RCA connector
1 Unbalanced stereo audio on 2 RCA connectors
OUTPUTS: VIDEO: 2 SDI/HD-SDI/3G HD-SDI on BNC connectors
INPUT RESOLUTIONS: See the document “Kramer Scalers Input Output Resolutions”
available for download from
AUDIO INPUT SAMPLE
RATE:
http://www.kramerelectronics.com
48kHz
OUTPUT RESOLUTIONS: 720p, 1080p SF30/29/25, 1080p @30/29/25/24/23, 1080p @59,
1080i @59, 720p @59, 480i @59, 576i, 1080p @50, 1080i @50,
720p @50, 1080p, 1080i
All resolutions are output @60Hz, except where noted
OUTPUT SIZE: Full, Panscan, Letterbox, Underscan, Overscan, Best Fit
PROCESSING DELAY: 20ms
CONTROLS: Menu, OSD and Freeze front panel buttons
POWER SOURCE: 5V DC, 1.5A
OPERATING
TEMPERATURE:
0° to +55°C (32° to 131°F)
STORAGE TEMPERATURE: –045° to +72°C (–49° to 162°F)
HUMIDITY: 10% to 90%, RHL non-condensing
DIMENSIONS: 18.8cm x 11.4cm x 2.5cm (7.4” x 4.5” x 1”) W, D, H
WEIGHT: 0.47kg (1.04lbs) approx.
ACCESSORIES: Power supply
OPTIONS: RK-T2B 19" rack adapter
Specifications are subject to change without notice at http://www.kramerelectronics.com

For the latest information on our products and a list of Kramer distributors,
visit our Web site where updates to this user manual may be found.
We welcome your questions, comments, and feedback.
Web site:
E-mail:
www.kramerelectronics.com
[e-mail]
!
SAFETY WARNING
Disconnect the unit from the power
supply before opening and servicing
PN:
2900- 300008
Rev:
4