Kramer VP-426H2 User manual

USER MANUAL
MODEL:
VP-426H2
4K HDMI-PC Scaler
P/N: 2900-300636 Rev 1 www.kramerAV.com

VP-426H2 – 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-426H2 4K HDMI-PC Scaler 5
4Connecting the VP-426H2 7
4.1 Connecting the Remote Terminal Block 8
5Operating the VP-426H2 10
5.1 Operating the VP-426H2 Using the Front Panel Buttons 10
5.2 Using the OSD 10
5.3 Upgrading the Firmware 14
6Technical Specifications 16
6.1 Input Resolutions and Refresh Rate 17
Figures
Figure 1: VP-426H2 4K HDMI-PC Scaler 5
Figure 2: Connecting the VP-426H2 4K HDMI-PC Scaler 8
Figure 3: Connecting the Remote Contact Closure Switches 9

VP-426H2 - 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-426H2 4K 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-426H2 - 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 www.kramerav.com/downloads/VP-426H2 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-426H2 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-426H2 - 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 www.kramerav.com/support/recycling/.

4 VP-426H2 - Overview
3 Overview
The Kramer VP-426H2 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 4K2K. 28 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-426H2 also features:
•Support of input and output resolutions up to 4K60 4:4:4
•HDCP 2.2, HDMI 2.0/1.4 compliance
•An option to bypass or scale 4K inputs
•Reading and storage of acceptor's EDID
•VGA (RGBHV), Component (YPrPr) or HDMI inputs
•RGBHV and HDMI simultaneous outputs
•Input auto-scanning
•Constant Sync - maintains sync on the output, even if input video signal is lost
or interrupted
•Analog/embedded audio support for inputs and outputs
•Support of multi-channel embedded audio bypassing
•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.

VP-426H2 - Overview
5
3.1 Defining the VP-426H2 4K HDMI-PC Scaler
This section defines the VP-426H2.
Figure 1: VP-426H2 4K 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. When not in OSD, press together
with the – button to reset to 1080p
6 ENTER Button In OSD, press to choose the highlighted menu
item. When not in OSD, press together with the +
button to reset to XGA resolution (1924x768)
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

6 VP-426H2 - Overview
#
Feature
Function
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

VP-426H2 - Connecting the VP-426H2
7
4 Connecting the VP-426H2
Always switch off the power to each device before connecting it to your
VP-426H2. After connecting your VP-426H2, connect its power and
then switch on the power to each device.
To connect the VP-426H2 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
P
R
2
Y
3
P
B
6, 7, 8
Ground
2. Connect an HDMI video source (for example, PS4) to the HDMI IN
connector.
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).
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).

8 VP-426H2 - Connecting the VP-426H2
Figure 2: Connecting the VP-426H2 4K 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.

VP-426H2 - Connecting the VP-426H2
9
Figure 3: Connecting the Remote Contact Closure Switches

10 VP-426H2 - Operating the VP-426H2
5 Operating the VP-426H2
The VP-426H2 is operated directly using the front panel buttons and the OSD
menu (see Section 5.2).
5.1 Operating the VP-426H2 Using 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 – together resets the output resolution to 1080p
•Pressing ENTER and +/FREEZE together resets the output to XGA resolution
(1024x768)
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), thus allowing access to all
the device settings.
5.2.1 Operating the OSD Using 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.

VP-426H2 - Operating the VP-426H2
11
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 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 (0-200)
Sets the color saturation
Sharpness (0-200)
Sets the sharpness of the picture
NR (Noise Reduction)
Off-Low-Middle-High-Auto
Selects the noise reduction level:
Off, High, Low and Middle or Auto
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

12 VP-426H2 - Operating the VP-426H2
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
Over Scan
Follow In
Under Scan
Letter Box
Pan Scan
Best Fit
4K in->4K out
Select method for 4K input to 4K output handling:
ByPass: keep the original 4K input resolution on the output (i.e.,
bypass the input without scaling).
Scaler: allow scaling from 4K to 4K.
Resolution
Select the output resolution from the menu:
Resolution:
Appears as:
Resolution:
Appears as:
Native
4k2k@50Hz(4:2:0)
4K2K(420) 50
480p
720X480P60
4k2k@60Hz(4:2:0)
4K2K(420) 60
576p
720X576P60
640x480@60Hz
640x480 60
720p@50Hz
1280X720P50
800x600@60Hz
800x600 60
720p@60Hz
1280X720P60
1024x768@60Hz
1024x768 60
1080p@24Hz
1920X1080P24
1280x768@60Hz
1280x768 60
1080p@25Hz
1920X1080P25
1360x768@60Hz
1360x768 60
1080p@30Hz
1920X1080P30
1280x800@60Hz
1280x800 60
1080p@50Hz
1920X1080P50
1280x1024@60Hz
1280x1024 60
1080p@60Hz
1920X1080P60
1440x900@60Hz
1440x900 60
4k2k@24Hz
4K2K 24
1400x1050@60Hz
1400x1050 60
4k2k@25Hz
4K2K 25
1680x1050@60Hz
1680x1050 60
4k2k@30Hz
4K2K 30
1600x1200@60Hz
1600x1200 60
4k2k@50Hz
4K2K 50
1920x1200@60Hz
1920x1200 60
4k2k@60Hz
4K2K 60
Exit
Select to exit to the Main Menu
Audio
Output
Volume
0-100
Sets output volume
Source
Automatic
Auto-select: DVI input on the
HDMI connector uses analog
audio, HDMI input uses
embedded audio
Embedded
Select to use the embedded audio
when the HDMI input is selected
Analog
Select to use the analog audio
input when the HDMI input is
selected
Delay Off, 40ms to 200ms in 10ms
steps Sets delay
Exit
Select to exit to the Main Menu

VP-426H2 - Operating the VP-426H2
13
Main Menu
Submenu
Values
Notes
OSD
H-Position
0-100
Adjusts the horizontal position of
the OSD on the screen
V-Position 0-100 Adjusts the vertical position of the
OSD on the screen
Timer Off or 5-60 (5 second steps) Adjusts the length of time the OSD
appears on the screen before
timing out
Background 0-100 Adjusts the shade of the OSD
background from black to
transparent
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)
HDCP On
Output
FOLLOW INPUT/FOLLOW
OUTPUT ( Default OUTPUT )
Auto SYNC
Off
Off/Slow/Fast
Turns the auto sync
OFF/SLOW/FAST. 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

14 VP-426H2 - Operating the VP-426H2
Main Menu
Submenu
Values
Notes
Auto input
scan
On/Off
When set to on, automatically
scans the inputs and selects the
first live one found (default is OFF)
This feature is not active when the
OSD menu is open
Auto image
On/Off
When on, auto image is
implemented every time the input
is switched to VGA or when the
input resolution changes.
The auto-image feature calculates
the positioning based on the
picture connected to the VGA
input. Only a “full screen” picture
can be used for this auto-
positioning – a test pattern (or
some other picture) which has
black along the entire top, bottom
or one of the sides would not be
suitable)
Freeze
Freeze Only / Freeze+Mute /
Mute Only
Select to freeze and/or mute the
display
EDID Manage
HDMI EDID: set to OUTPUT,
Def 4K2K(6G), Def.4K2K(4:2:0),
Def. 4K2K(3G) or Def. 1080P
VGA EDID: set to Def. 1080P or
OUTPUT
For each input (VGA and HDMI),
select the default EDID.
If OUTPUT is selected, each time
you connect a different type of
output, you need to read the EDID
from that output once again.
Exit
Select to exit to the Main Menu
Info
Source
Displays the source, input and
output resolutions and the
software version
Input
Output HDMI
Output PC
Version
Exit
Select to exit to the Main Menu
Factory
Reset 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. Save the new firmware file to a memory stick.
2. Disconnect power from the VP-426H2.
3. Plug the memory stick into the USB connector on the VP-426H2.
4. Press and hold the Menu button while reconnecting power to the VP-426H2.

VP-426H2 - Operating the VP-426H2
15
5. When three LEDs light at the same time, release the MENU button (meaning
the device is in the FW upgrading mode).
6. When the upgrade is complete, the LED goes from solid on to flashing.
7. Disconnect and reconnect the power cable.
8. Check that the Info screen shows the latest FW version.

16 VP-426H2 - 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:
For the HDMI and VGA outputs: 640x480@60Hz,
800x600@60Hz 1024x768@60Hz, 1280x768@60Hz,
1360x768@60Hz, 1280x800@60Hz, 1280x1024@60Hz,
1440x900@60Hz, 1400x1050@60Hz,
1680x1050@60Hz, 1600x1200@60Hz, 1920x1200
RB@60Hz
For the HDMI output only: 480P@60Hz, 576P@50Hz,
720P@50/60Hz, 1080P@24/25/30/50/60Hz,
4k2k@24/25/30/50/60Hz, 4k2k (4:2:0)@50/60Hz
Output Refresh Rate:
60Hz for computer graphics resolutions, 50/60Hz for
HDTV resolutions
Audio Sampling Rate:
44.1kHz, 48kHz for analog audio output
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, 1.2A
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
Shipping Dimensions
34.5cm x 16.5cm x 5.2cm (13.6" x 6.5" x 2.0") W. D. H
Weight:
0.48kg (1.06lb) approx.
Shipping Weight:
0.98kg (2.16lb) approx.
Included Accessories:
Power supply (5.2V/4A), bracket set
Options:
RK-T2B 19” rack adapter
Specifications are subject to change without notice at www.kramerav.com

VP-426H2 - Technical Specifications
17
6.1 Input Resolutions and Refresh Rate
Resolution/Refresh Rate
Component
PC
HDMI
480I/576I
V
V
480P/576P
V
V
720P@(60/50)
V
V
1080I@(60/50)
V
V
1080P@(60/50)
V
V
1080P@(24/25/30)
V
V
640x480@(60/67/72/75/85)
V
V
800x600@(56/60/72/75)
V
V
1024x768@(60/70/75)
V
V
1280x1024@(60/75)
V
V
1280X960@60
V
V
1280X720@60
V
V
1920X1080@60
V
V
1600X1200@60
V
V
1280x768@60
V
1280x800@60
V
V
1360x768@60
V
V
1366x768@60
V
V
1400x1050@60
V
V
1600X900@60
V
V
1680x1050@60
V
V
1920x1200@60 RB
V
V
4K2K@(24/25/30/50/60)
V
4K2K(4:2:0)@(50/60)
V