Kramer VP-425 User manual

KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
VP-425
PC / Component to HDMI Scaler
P/N: 2900-300111 Rev 2

VP-425 – Contents i
Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
3Overview 3
3.1 About HDMI 4
3.2 About HDCP 5
3.3 Defining the VP-425 PC / Component to HDMI Scaler 5
4Connecting the VP-425 PC / Component to HDMI Scaler 6
5Controlling the VP-425 8
5.1 Controlling via the Front Panel Buttons 8
5.2 Using the OSD Menu 8
6Technical Specifications 12
Figures
Figure 1: VP-425 PC / Component to HDMI Scaler 5
Figure 2: Connecting the VP-425 PC / Component to HDMI Scaler 7

VP-425 – Introduction 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 video, audio, presentation, and broadcasting professionals
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 Routers;
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 Video Products.
Congratulations on purchasing your Kramer VP-425 PC / Component to HDMI
Scaler, which is designed to let you control an A/V system with ease, in a
multimedia classroom or conference room.
This product is ideal for:
•Projection systems in conference rooms, boardrooms, hotels and houses of
worship
•Home theater up-scaling
•Rental and staging

2 VP-425 - 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
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-425 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
i
!

VP-425 – Overview 3
3 Overview
The Kramer VP-425 PC / Component to HDMI Scaler is a high-performance digital
scaler for computer graphics and HDTV signals. It up- or down-scales the PC or
component video input and embeds the stereo audio into the HDMI output.
The VP-425 PC / Component to HDMI Scaler also features:
•A non-HDCP encrypted HDMI or DVI output signal on an HDMI connector
•HDTV Compatibility
•A maximum resolution of up to WUXGA and 1080p
•A built-in ProcAmp for convenient signal adjustment
•On-Screen Display (OSD) for easy setup and adjustment, accessible via the
front-panel buttons
•A USB port for firmware upgrade
•A non-volatile memory that retains the last settings used
•A freeze button
•An external 5V DC power source, making it suitable for field operation
You can control your VP-425 directly via the front panel push buttons and the
on-screen display (OSD).
The VP-425 is housed in a compact MegaTOOLS™ enclosure, letting 2 units to be
rack mounted side-by-side in a 1U rack space with the optional RK-T2B universal
rack adapter.

4 VP-425 - Overview
3.1 About HDMI
High-Definition Multimedia Interface (HDMI) is an uncompressed all-digital audio/video
interface, widely supported in the entertainment and home cinema industry. HDMI
ensures an all-digital rendering of video without the losses associated with analog
interfaces and their unnecessary digital-to-analog conversions. It delivers the
maximum high-definition image and sound quality in use today. Note that Kramer
Electronics Limited is an HDMI Adopter and an HDCP Licensee.
HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered
trademarks of HDMI licensing LLC.
In particular, HDMI:
•Provides a simple interface between any audio/video source, such as a set-
top box, DVD player, or A/V receiver and video monitor, such as a digital flat
LCD / plasma television (DTV), over a single lengthy cable
SIMPLICITY - With video and multi-channel audio combined into a single cable, the
cost, complexity, and confusion of multiple cables currently used in A/V systems is
reduced
LENGTHY CABLE - HDMI technology has been designed to use standard copper cable
construction at up to 15m
•Supports standard, enhanced, high-definition video, and multi-channel digital
audio on a single cable
MULTI-CHANNEL DIGITAL AUDIO - HDMI supports multiple audio formats, from
standard stereo to multi-channel surround-sound. HDMI has the capacity to support
Dolby 5.1 audio and high-resolution audio formats
•Transmits all ATSC HDTV standards and supports 8-channel digital audio,
with bandwidth to spare to accommodate future enhancements and
requirements
•Benefits consumers by providing superior, uncompressed digital video quality
via a single cable, and user-friendly connector
HDMI provides the quality and functionality of a digital interface while also supporting
uncompressed video formats in a simple, cost-effective manner
•Is backward-compatible with DVI (Digital Visual Interface)
•Supports two-way communication between the video source (such as a DVD
player) and the digital television, enabling new functionality such as automatic
configuration and one-button play
•Has the capacity to support existing high-definition video formats (720p,
1080i, and 1080p/60), standard definition formats such as NTSC or PAL, as
well as 480p and 576p

VP-425 – Overview 5
3.2 8BAbout HDCP
The High-Bandwidth Digital Content Protection (HDCP) standard developed by
Intel, protects digital video and audio signals transmitted over DVI or HDMI
connections between two HDCP-enabled devices to eliminate the reproduction of
copyrighted material. To protect copyright holders (such as movie studios) from
having their programs copied and shared, the HDCP standard provides for the
secure and encrypted transmission of digital signals.
3.3 9BDefining the VP-425 PC / Component to HDMI Scaler
Figure 1: VP-425 PC / Component to HDMI Scaler
#
Feature
Function
1 PROGRAM USB Connector For firmware upgrade
2 PC / COMPONENT INPUT
15-pin HD Connector
Connects to a PC or component source
3 AUDIO INPUT LEFT Connects to an unbalanced stereo audio source
4 RIGHT
5 HDMI OUT Connector Connects to an HDMI acceptor
6 5V DC +5V DC connector for powering the unit
7 ON LED Lights green when the unit is powered on
8 COMPONENT IN LED Lights blue when a component (YPbPr) signal is
detected on the input
9 MENU Button Press to enter/escape the on-screen display (OSD)
menu.
Press together with the – button to reset to 720p
10 ENTER Button In the OSD, press to choose the highlighted menu item.
Press together with the + button to reset to XGA
11 - Button In the OSD, press to move backward through the list or
to decrement the parameter value
12 + / FREEZE Button In the OSD, press to move forward through the list or to
increment the parameter value.
When not in the OSD, press to freeze the display

6 VP-425 - Connecting the VP-425 PC / Component to HDMI Scaler
4 Connecting the VP-425 PC / Component to
HDMI Scaler
Always switch off the power to each device before connecting it to your
VP-425. After connecting your VP-425, connect its power and then
switch on the power to each device.
To connect the VP-425, as illustrated in the example in Figure 2 do the following:
1. Connect a component video source (for example, a DVD player) to the
PC/COMPONENT INPUT 15-pin HD connector as shown in the pinout table
below:
Signal
PIN #
Pr 1
Y 2
Pb 3
Ground 6, 7, 8
Alternatively, you can connect a PC to the 15-pin HD connector
2. Connect an analog stereo audio source (for example, the DVD player audio
signal) to the L and R AUDIO INPUT RCA connectors.
3. Connect the HDMI OUT 15-pin HD connector to an HDMI acceptor (for
example, an LCD display).
4. Connect the 5V DC power adapter to the power socket and connect the
adapter to the mains electricity (not shown in Figure 2).
!

VP-425 – Connecting the VP-425 PC / Component to HDMI Scaler 7
Figure 2: Connecting the VP-425 PC / Component to HDMI Scaler

8 VP-425 - Controlling the VP-425
5 Controlling the VP-425
The VP-425 can be controlled via:
•The front panel buttons (see Section 5.1)
•The OSD menu (see Section 5.2)
5.1 Controlling via the Front Panel Buttons
The VP-425 includes the following front panel buttons:
•MENU, ENTER, -, and +
•FREEZE
•RESET TO XGA/720p
5.2 Using the OSD Menu
Press the menu button to enter or close the OSD menu. While the OSD menu is
open, you can use the front panel buttons to perform the following functions. Press
the:
•+ and – buttons to move up and down through the menu items and
increment or decrement the parameter values
•ENTER button to select and activate a menu item or accept the parameter
value set
•MENU button to close the OSD menu

VP-425 – Controlling the VP-425 9
As an example of setting parameters, to increase the contrast on the display:
1. From normal operation, press MENU.
The OSD main menu appears on the screen.
2. Press the + or – button to highlight CONTRAST.
CONTRAST changes to green when highlighted.
3. Press ENTER.
The contrast value parameter changes to red.
4. Press the + button to increase the value (increase the contrast) or
the – button to decrease the value (decrease the contrast).
The value ranges from 0 to 100.
5. Press ENTER to set the value.
The contrast value parameter changes back to white.
6. To return to normal operation, highlight EXIT and press ENTER; press
MENU; or wait until the menu times out.

10 VP-425 - Controlling the VP-425
5.2.1 The MAIN MENU
Mode
Function
PICTURE See Section 5.2.2
ASPECT RATIO Full, 16:9, 4:3, BEST FIT
OVER SCANNING Off, 5%, 10%, 15%, 20%
NOISE REDUCTION Off, Min, Typ, Max
OUTPUT Select the output resolution from the menu (default 720p):
Output resolution: Appears as: Output resolution: Appears as:
480p 480P SXGA 1280x1024
576p 576P WXGA 1360x768
720p 720P 1400x1050 1400x1050
1080i 1080I WSXGA 1440x900
1080p 1080P UXGA 1600x1200
VGA 640x480 1680x1050 1680x1050
SVGA 800x600 WUXGA 1920x1200
XGA 1024x768 Native
1280x800 1280x800
NATIVE - Select NATIVE to select the output resolution from the EDID of
the connected HDMI monitor
REFRESH RATE Select the output refresh rate: FOLLOW, 50Hz, 60Hz
HD OUTPUT COLOR Select the HD output colorspace: RGB, YPbPr
OSD SETTINGS Set the OSD parameters: H Position, V Position, Transparency,
Timeout and Display (see Section 5.2.3)
ADVANCED AUTO SYNC-OFF - Turn the auto sync ON/OFF. When ON, this
deactivates the output after a few minutes if no input is present, until
a valid input is again detected or any button is pressed.
This is useful, for example, when the output is connected to a projector,
and the projector will automatically shut down when it has no input
H OFFSET – adjust the picture H position
V OFFSET – adjust the picture V position
FREEZE – set the function of the FREEZE button: FREEZE + MUTE,
MUTE ONLY, FREEZE ONLY
FACTORY DEFAULT Resets to the default parameters
If you cannot see the display after factory reset, use the front panel buttons
to set the correct resolution:
To reset to XGA, press the FREEZE (+) and ENTER buttons
simultaneously for about 2 seconds
To reset to 720p press the – and MENU buttons simultaneously for about 2
seconds
INFORMATION Displays the input and output resolution (via the INFO display) the
SINK connector type and model, the native resolutions and the
software version
EXIT Select to exit the menu

VP-425 – Controlling the VP-425 11
5.2.2 13BThe PICTURE Menu
Parameter
Function
CONTRAST Set the contrast
BRIGHTNESS Set the brightness
SATURATION Set the color saturation
HUE Set the color hue
SHARPNESS Set the image sharpness
PHASE Adjust the clock phase
PICTURE RESET Reset the PICTURE parameters to their default state
5.2.3 14BThe OSD Menu
Parameter Function
POSITION LEFT+TOP, RIGHT-TOP, RIGHT-BTM, LEFT-BTM, CENTER
TRANSPARENCY Set the OSD background between 0 (solid black) and 15 (transparent)
MENU TIMEOUT Set the OSD timeout period in seconds (from 5 to 50, OFF)
INFO. TIMEOUT Set the INFO timeout period in seconds (from 5 to 50, OFF)
INFO. DISPLAY Select the information shown on the screen during operation:
ON - the information is shown permanently
OFF - the information is not shown
INFO - the information is shown for the time period set in INFO.
TIMEOUT following any change in the resolution

12 VP-425 - Technical Specifications
6 Technical Specifications
INPUTS: 1 15-pin HD connector
1 unbalanced stereo audio on RCA connectors
OUTPUT: 1 HDMI connector
PORT: 1 USB port
OUTPUT RESOLUTIONS: 480p, 576p, 720p, 1080i, 1080p, 640x480, 800x600,
1024x768, 1280x800, 1280x1024, 1360x768, 1400x1050,
1440x900, 1600x1200, 1680x1050, 1920x1200 and
native
OUTPUT REFRESH RATE: 50/60Hz/follow input
PROCESSING DELAY: 20 ms
CONTROLS: ON and PC/COMPONENT INPUT LEDs
POWER CONSUMPTION: 5V DC, 400mA
OPERATING TEMPERATURE: 0° to +55°C (32° to 131°F)
STORAGE TEMPERATURE: -45° to +72°C (-49° to 162°F)
HUMIDITY: 10% to 90%, RHL non-condensing
DIMENSIONS: 18.8cm x 11.4cm x 2.45cm (7.4” x 4.5” x 0.98”) W, D, H
WEIGHT: 0.66kg (1.45lbs) approx.
ACCESSORIES: Power supply
OPTIONS RK-T2B 19" rack adapter
Specifications are subject to change without notice
Go to our Web site at http://www.kramerelectronics.com to access the list of resolutions

VP-425 13
13

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: www.kramerelectronics.com
E-mail: [e-mail]
P/N:
2900- 300111
Rev:
2
!
SAFETY WARNING
Disconnect the unit from the power
supply before opening and servicing