Kramer VP-426 User manual

USER MANUAL
MODEL:
VP-426
HDMI-PC Scaler
P/N: 2900-300277 Rev 4 www.kramerAV.com

VP-426 – Contents
i
Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Safety Instructions 2
2.3 Recycling Kramer Products 3
3Overview 4
3.1 Defining the VP-426 HDMI-PC Scaler 4
4Connecting the VP-426 6
4.1 Connecting the Remote Terminal Block 7
5Operating the VP-426 9
5.1 Operating the VP-426 from the Front Panel Buttons 9
5.2 Using the OSD 9
5.3 Upgrading the Firmware 13
6Technical Specifications 14
6.1 Input Resolutions and Refresh Rate 14
Figures
Figure 1: VP-426 HDMI-PC Scaler 5
Figure 2: Connecting the VP-426 HDMI-PC Scaler 7
Figure 3: Connecting the Remote Contact Closure Switches 8

VP-426 - 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 14 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; GROUP 12: Digital Signage; and GROUP 13: Audio, and
GROUP 14: Collaboration.
Congratulations on purchasing your Kramer VP-426 HDMI-PC Scaler, which is
ideal for the following typical applications:
Projection systems in conference rooms, boardrooms, auditoriums, hotels and
churches, production studios, rental and staging
Home theater up-scaling

2
VP-426 - 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
Go to http://www.kramerav.com/downloads/VP-426 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 (we recommend Kramer high-
performance, high-resolution cables) to avoid interference, deterioration in
signal quality due to poor matching, and elevated noise levels (often
associated with low quality cables)
Do not secure the cables in tight bundles or roll the slack into tight coils
Avoid interference from neighboring electrical appliances that may adversely
influence signal quality
Position your Kramer VP-426 away from moisture, excessive sunlight and
dust
This equipment is to be used only inside a building. It may only be
connected to other equipment that is installed inside a building.
2.2 Safety Instructions
Caution:
There are 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-426 - Getting Started
3
2.3 Recycling Kramer Products
The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
aims to reduce the amount of WEEE sent for disposal to landfill or incineration by
requiring it to be collected and recycled. To comply with the WEEE Directive,
Kramer Electronics has made arrangements with the European Advanced
Recycling Network (EARN) and will cover any costs of treatment, recycling and
recovery of waste Kramer Electronics branded equipment on arrival at the EARN
facility. For details of Kramer’s recycling arrangements in your particular country
go to our recycling pages at http://www.kramerelectronics.com/support/recycling/.

4
VP-426 - Overview
3 Overview
The Kramer VP-426 is a high-performance digital scaler for computer
graphics/HDTV and HDMI signals. The unit up- or down-scales computer graphics
and HDTV signals to resolutions up to WUXGA and 1080p. 22 output resolutions
and Native are supported. The user can choose the input –computer
graphics/HDTV or HDMI –and the scaled output is sent to both the computer
graphics and HDMI outputs.
The VP-426 also features:
HDCP compliance
Reading and storage of acceptor's EDID
Component (RGBHV, YPBPR) or HDMI inputs
RGBHV and HDMI simultaneous outputs
Input auto-scanning
Analog/embedded audio support for inputs and outputs
A built-in ProcAmp for convenient signal adjustment
An On-Screen Display (OSD) for easy setup and adjustment, accessible via
the front-panel buttons
A non-volatile memory that retains the last settings used
A freeze button
Contact closure inputs for remote switching of sources
A USB port for upgrading firmware
The machine is fed from an external 5V DC source, making it suitable for field
operation.
3.1 Defining the VP-426 HDMI-PC Scaler
This section defines the VP-426.

VP-426 - Overview
5
Figure 1: VP-426 HDMI-PC Scaler
#
Feature
Function
1
ON LED
Lights green when the unit is powered on
2
INPUT Button
Press to toggle the input between HDMI and PC
3
HDMI LED
Lights when the HDMI input is selected
4
PC LED
Lights when the PC input is selected
5
MENU Button
Press to enter/escape the on-screen display
(OSD) menu. Press together with the –button to
reset to 720p
6
ENTER Button
In OSD, press to choose the highlighted menu
item. Press together with the + button to reset to
XGA
7
–Button
In OSD, press to move backward through the list
or to decrement the parameter value
8
+/FREEZE Button
In OSD, press to move forward through the list or
to increment the parameter value. When not in
OSD, press to freeze the display
9
PROG USB Connector
Connects to a PC for programming upgrade
10
PC IN 15-pin HD Connector
Connects to a PC computer graphics source
11
AUDIO IN PC 3.5mm Mini Jack
Connects to an unbalanced stereo PC source
12
AUDIO IN HDMI 3.5mm Mini Jack
Connects to an unbalanced stereo HDMI source
13
HDMI IN Connector
Connects to an HDMI source (if there is no video
input, audio is disabled)
14
PC OUT 15-pin HD Connector
Connects to a PC computer graphics acceptor
15
AUDIO OUT 3.5mm Mini Jack
Connects to an unbalanced stereo audio
acceptor
16
HDMI OUT Connector
Connects to an HDMI acceptor
17
REMOTE Terminal Block
Connects to remote contact closure switches
18
5V DC
+5V DC connector for powering the unit

6
VP-426 - Connecting the VP-426
4 Connecting the VP-426
Always switch off the power to each device before connecting it to your
VP-426. After connecting your VP-426, connect its power and then
switch on the power to each device.
To connect the VP-426 as illustrated in the example in Figure 2:
1. Connect a computer graphics video source to the PC IN 15-pin HD
connector and a PC audio source to the PC AUDIO IN 3.5mm mini jack
(both for example, from a PC).
When connecting to a component source (YPbPr), connect as shown
here:
PIN #
Signal
1
PR
2
Y
3
PB
6, 7, 8
Ground
2. Connect an HDMI video source to the HDMI IN connector (for example, from
a DVD player).
3. Connect the PC OUT 15-pin HD connector and the AUDIO OUT 3.5mm mini
jack to a computer graphics with audio acceptor (for example, an analog
display and an unbalanced amplifier).
When connecting to an XGA acceptor (RGBHV), connect to the
acceptor’s XGA connector
4. Connect the HDMI OUT connector to an HDMI acceptor (for example, an
LCD display with speakers).
5. If desired, connect the REMOTE terminal block connector to contact closure
switches (see Section 4.1).
6. Connect the 5V DC power adapter to the power socket and connect the
adapter to the mains electricity (not shown in Figure 2).

VP-426 - Connecting the VP-426
7
Figure 2: Connecting the VP-426 HDMI-PC Scaler
4.1 Connecting the Remote Terminal Block
The contact closure remote control pins operate in a similar way to the INPUT
SELECT button. Using the contact closure remote control (also known as push-to-
make momentary contact) you can select the PC or the HDMI input. To do so,
momentarily connect the required input pin (HDMI or PC) on the REMOTE
terminal block connector to the G (ground) pin, as shown in Figure 3.
Do not connect more than one PIN to the GND PIN at the same time.

8
VP-426 - Connecting the VP-426
Figure 3: Connecting the Remote Contact Closure Switches

VP-426 - Operating the VP-426
9
5 Operating the VP-426
The VP-426 is operated directly using the front panel buttons and the OSD menu
(see Section 5.2).
5.1 Operating the VP-426 from the Front Panel Buttons
During normal operation (without the OSD), the front panel buttons perform the
following functions:
Pressing MENU opens the on-screen display (OSD) main menu (see
Section 5.2), the next press closes the OSD
Pressing +/FREEZE freezes the display, the next press unfreezes the display
Pressing MENU and –/AUTO ADJUST together resets the display to 720p
Pressing ENTER and +/FREEZE together resets the display to XGA
5.2 Using the OSD
You can use the OSD to set a wide variety of parameters. When the MENU button
is pressed, the main menu opens (see Section 5.2.2) allowing access to all the
device settings.
5.2.1 Operating the OSD from the Front Panel Buttons
While the OSD is open, the front panel buttons perform the following functions:
Pressing - and + move forward and backward through the menu items and
decrement or increment the parameter values
Pressing ENTER selects and activates a menu item or accepts the parameter
value set
Pressing MENU closes the OSD menu
The menu times out by default after 10 seconds. To change the OSD display time, adjust
the OSD/TIMER parameter.

10
VP-426 - Operating the VP-426
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.
5.2.2 The OSD Menu Structure
Main Menu
Submenu
Values
Notes
Picture
Contrast
0-100
Adjusts the contrast
Brightness
0-100
Adjusts the brightness
Finetune
COMPONENT
Hue (0-100)
Sets the color hue
Saturation (0-100)
Sets the color saturation
Sharpness (0-100)
Sets the sharpness of the picture
Noise Reduction
Off-Low-Middle-High
Selects the noise reduction level:
OFF, HI, LOW and MID (middle)
VGA
PHASE
Sets the clock phase
CLOCK
Sets the clock frequency
H-POSITION
Sets the horizontal position of the
picture
V-POSITION
Sets the vertical position of the
picture
Exit
Select to exit to the Main Menu
Color
Red 0-100
Adjusts the individual color
components of the display
Green 0-100
Blue 0-100
Exit
Select to exit to the Main Menu

VP-426 - Operating the VP-426
11
Main Menu
Submenu
Values
Notes
Input
Source
PC/YPbPr
Select for PC source
HDMI
Select for HDMI source
Exit
Select to exit to the Main Menu
Output
Size
Full
Select the size of the display
Overscan
Underscan
Letterbox
Pan scan
Best fit
Resolution
Select the output resolution from the menu:
Resolution:
Appears as:
Resolution:
Appears as:
480i
480I
800x600
SVGA
480p
480P
1024x768
XGA
720p@60Hz
720P60
1280x1024
SXGA
1080i@60Hz
1080I60
1600x1200
UXGA
1080p@60Hz
1080P60
1366x768
WXGA
576i
576I
1680x1050
WSXGA
576p
576P
1920x1200
WUXGA
720p@50Hz
720P50
1280x800
1280x800
1080i@50Hz
1080I50
1440x900
1440x900
1080p@50Hz
1080P50
1400x1050
1400x1050
NATIVE
1600x900
1600x900
640x480
VGA
Exit
Select to exit to the Main Menu
Audio
Input Volume
0-100
Sets input volume
Output Volume
0-100
Sets output volume
Delay
Off, 40ms, 110ms, 150ms
Sets delay
Input
Analog
Select to use the analog audio
input when the HDMI input is
selected
Embedded
Select to use the embedded
audio when the HDMI input is
selected
Automatic
Auto-select: DVI input on the
HDMI connector uses analog
audio, HDMI input uses
embedded audio
Exit
Select to exit to the Main Menu
OSD
H-position
0-100 (50)
Adjusts the horizontal position of
the OSD on the screen
V-position
0-100 (50)
Adjusts the vertical position of the
OSD on the screen
Timer
5-100 (10)
Adjusts the length of time in
seconds the OSD appears on the
screen before timing out
Background
0-100 (50)
Adjusts the shade of the OSD
background from black to
transparent

12
VP-426 - Operating the VP-426
Main Menu
Submenu
Values
Notes
Display
Info/On/Off
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
Exit
Select to exit to the Main Menu
Advanced
HDCP on input
On/Off
Selects the HDCP option for the
HDMI input: either ON (the
default) or OFF.
Setting HDCP support to
disabled (OFF) on the HDMI
input allows the source to
transmit a non-HDCP signal if
required (for example, when
working with a Mac computer)
Auto sync off
Off/Fast/Slow
Turns the auto sync
OFF/FAST/SLOW. When ON, a
short period after not detecting a
valid video signal on the selected
input, the unit will disable the H
and V syncs on the analog
outputs until a valid input is again
detected or any keypad is
pressed.
When set to 'Fast' state - sync is
off after 17 seconds
Auto input scan
On/Off
Automatically scans the inputs
and selects the first live one
found (default OFF)
Auto image
On/Off
The auto image feature may be
implemented every time the input
is switched to VGA or when the
input resolution changes
Freeze
Freeze only/mute
only/freeze+mute
Select to freeze and/or mute the
display
EDID Manage
Set to Default or Custom
For each input (VGA and HDMI),
select Default to use the factory
default EDID.
Select Custom to read the EDID
on the output of the VP-426, and
use that as the input EDID.
TIMING SHIFT
Set to ON (Default):
Implements a small shift on the
horizontal sync to improve output
picture stability. Set to OFF if the
display shows an instability at the
selected output resolution
Exit
Select to exit to the Main Menu
About
Source
Displays the source, input and
output resolutions and the
software version
Input
Output
Version

VP-426 - Operating the VP-426
13
Main Menu
Submenu
Values
Notes
Factory Reset
Resets the device to its factory
default parameters and
automatically senses the input
and output devices
Exit
Select to exit to the Main Menu
Exit
Select to exit the OSD
5.3 Upgrading the Firmware
1. To perform the upgrade, the firmware file must be named VP-426.bin with no
additional characters or numbers. If necessary rename the file.
2. Save the VP-426.bin file to a memory stick (upgrading from a PC is not
available).
3. Disconnect power from the VP-426.
4. Plug the memory stick into the USB connector on the
VP-426.
5. Press and hold the Menu button while reconnecting power to the VP-426.
6. When three LEDs light at the same time, release the MENU button (meaning
the device is in the FW upgrading mode).
7. When the upgrade is complete, the LED goes from solid on to flashing.
8. Disconnect and reconnect the power cable.
9. Check that the Info screen shows the latest FW version.

14
VP-426 - Technical Specifications
6 Technical Specifications
INPUTS:
1 PC/HD (RGBHV/YPbPr) on a 15-pin HD connector, 1
HDMI connector, 2 unbalanced stereo audio connectors
on 3.5mm mini jacks
OUTPUTS:
1 PC (RGBHV) on a 15-pin HD connector, 1 HDMI
connector, 1 unbalanced stereo audio connector on a
3.5mm mini jack
OUTPUT RESOLUTIONS:
NATIVE, 480i, 480p, 720p@60Hz, 1080i@60Hz,
1080p@60Hz, 576i, 576p, 720p@50Hz, 1080i@50Hz,
1080p@50Hz, 640x480, 800x600, 1024x768, 1280x1024,
1600x1200, 1366x768, 1680x1050, 1920x1200, 1280x800,
1440x900, 1400x1050, 1600x900
OUTPUT REFRESH RATE:
60Hz for computer graphics resolutions, 50/60Hz for
HDTV resolutions
VIDEO LATENCY:
Progressive input: 30ms (approx.); interlaced input: 50ms
(approx.)
CONTROLS:
Front panel buttons,1 remote contact closure on a 3-pin
terminal block connector, 1 USB for programming
INDICATORS:
ON, HDMI and PC LEDs
POWER CONSUMPTION:
5V DC, 1.1A
OPERATING TEMPERATURE:
0° to +40°C (32° to 104°F)
STORAGE TEMPERATURE:
-40° to +70°C (-40° to 158°F)
HUMIDITY:
10% to 90%, RHL non-condensing
DIMENSIONS:
18.8cm x 11.4cm x 2.5cm (7.4” x 4.5” x 1.0”) W, D, H
WEIGHT:
0.45kg (1.0lb)
INCLUDED ACCESSORIES:
Power supply
OPTIONS:
RK-T2B 19” rack adapter
Specifications are subject to change without notice at http://www.kramerelectronics.com
6.1 Input Resolutions and Refresh Rate
Resolution/Refresh Rate
Component
PC
HDMI
480i/576i
V
X
V
480p/576p
V
X
V
720p @(60/50)
V
X
V
1080i @(60/50)
V
X
V
1080p @(60/50)
V
X
V
1080p @(24/25/30)
V
X
V
VGA @(60/67/72/75/85)
V
V
SVGA @(56/60/72/75)
V
V
XGA @(60/70/75)
V
V
SXGA @(60/75)
V
V
1280X960
V
V
1600X900 @60
V
V
UXGA @60 (1600X1200 )
V
V
WXGA @60(1280x800)
V
V
WXGA+ @60(1440x900)
V
V

VP-426 - Technical Specifications
15
Resolution/Refresh Rate
Component
PC
HDMI
WXGA @60(1366x768)
V
V
SXGA+ @60(1400x1050)
V
V
WSXGA @60(1680x1050)
V
V
WUXGA @60(1920x1200)
V
V

1
SAFETY WARNING
Disconnect the unit from the power supply before opening andservicing
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.
www.kramerAV.com
[e-mail]
P/N:
2900-300277
Rev:
4