Kramer VA-40 User manual

Kramer Electronics, Ltd.
USER MANUAL
Model:
VA-40
4 Channel PC Image Shifter

Contents
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 2
3 Overview 3
4 Your VA-40 4 Channel PC Image Shifter 4
5 Connecting the VA-40 4 Channel PC Image Shifter 5
6 Operating the VA-40 6
6.1 Resetting the Memory 6
7 Technical Specifications 7
Figures
Figure 1: VA-40 4 Channel PC Image Shifter Functions 4
Figure 2: Connecting the VA-40 4 Channel PC Image Shifter 5
Tables
Table 1: VA-40 4 Channel PC Image Shifter Functions 4
Table 2: VA-40 Technical Specifications 7

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 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
1
that are clearly
defined by function.
Thank you for purchasing the Kramer VA-40 4 Channel PC Image Shifter,
which is ideal for home-entertainment, multimedia, and presentation
applications.
Each package includes the following items:
The VA-40 4 Channel PC Image Shifter
Power adapter (12V DC Input)
This user manual
2
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
3
1 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; GROUP 11: Sierra Products
2 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.

Overview
3
3 Overview
The Kramer VA-40 4 Channel PC Image Shifter is a high-performance sync
delay corrector that can be used for any computer graphics video signal
from VGA to UXGA.
When sending a computer graphics video signal from a PC to a monitor via
a long-distance display cable, the delay between the picture information and
the sync may cause a horizontal shift on the display. The VA-40
compensates by shifting the sync accordingly, so that the picture is properly
displayed.
The VA-40 syncs up to four lines simultaneously and the shift setting for
each input is stored in non-volatile memory that maintains the setting even
after the unit is powered off.
The VA-40 is especially useful when installed together with a display
switching device. Sync is maintained on all displays even switching through
the various PC sources.
To achieve the best performance:
Use only good quality connection cables
1
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 and position your Kramer
VA-40 away from moisture, excessive sunlight and dust
Caution – No operator-serviceable parts inside unit.
Warning – Use only the Kramer Electronics input power
wall adapter that is provided with this unit
2
.
Warning – Disconnect power and unplug unit from wall
before installing or removing device or servicing unit.
1 Available from Kramer Electronics on our Web site at http://www.kramerelectronics.com
2 For example, part number 2535-000251

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VA-40 4 Channel PC Image Shifter
4
4 Your VA-40 4 Channel PC Image Shifter
Figure 1 and Table 1 define the VA-40.
Figure 1: VA-40 4 Channel PC Image Shifter Functions
Table 1: VA-40 4 Channel PC Image Shifter Functions
# Feature Function
1 POWER Switch Illuminated switch for turning the unit ON and OFF
2 INPUT Buttons Selects the input source for image shifting (1 to 4)
3 SHIFT Left Button Moves the image on the selected display to the left
4 SHIFT Right Button Moves the image on the selected display to the right
5 OUTPUT 15-pin HD (F) Connectors Connect to the display acceptor (1 to 4)
6 INPUT 15-pin HD (F) Connectors Connect to the computer graphics video signal source (1 to 4)
7 12V DC Connector +12V DC for powering the unit

Connecting the VA-40 4 Channel PC Image Shifter
5
5 Connecting the VA-40 4 Channel PC Image Shifter
To connect the VA-40, as the example in Figure 2 illustrates, do the
following
1
:
1. Connect the computer graphics video signal cable from each source PC
(from one to four) to its INPUT connector
2
on the VA-40.
2. Connect the OUTPUT connector to each acceptor display (from one to
four).
3. Connect the 12V DC power adapter to the power socket and connect the
adapter to the mains electricity.
Figure 2: Connecting the VA-40 4 Channel PC Image Shifter
1 Switch OFF the power on each device before connecting it to your VA-40. After connecting your VA-40, switch on its
power and then switch on the power on each device
2 Not all inputs and outputs need to be connected

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Operating the VA-40
6
6 Operating the VA-40
To operate your VA-40:
1. Select a PC source by pressing its input button.
2. While observing the display, press the right or left SHIFT buttons as needed
to center the picture. Depending on the resolution, the image can be shifted
up to about 1/3 of the screen in either direction.
Note: To increase the correction speed, press and hold the SHIFT button for
more than 3 seconds.
3. Repeat for all other inputs as needed. The settings are saved in non-volatile
memory 5 seconds after the last press or correction.
4. When the VA-40 is turned OFF and ON after a correction is made, the
button of the last corrected input lights dimly.
Note: If the four buttons light and stay lit when the VA-40 is powered ON,
there is a problem reading from non-volatile memory. Contact Customer
Support.
6.1 Resetting the Memory
To erase the contents of the non-volatile memory, perform the following:
1. Turn the unit OFF and ON.
2. Press the Left and Right shift buttons simultaneously for a short time.
3. When all four LEDs turn ON, the operation was successful.
4. Turn the unit OFF and ON again to resume normal operation.

Technical Specifications
7
7 Technical Specifications
The VA-40 technical specifications are shown in Table 2:
Table 2: VA-40 Technical Specifications
1
INPUTS: 4 computer graphics video on 15-pin HD (F) connectors
OUTPUTS: 4 computer graphics video on 15-pin HD (F) connectors
BANDWIDTH (-3dB): 1.5GHz
DIFF. GAIN: 0.05%
DIFF. PHASE: 0.05Deg
K-FACTOR: <0.05%
S/N RATIO: 75dB @5MHz
CROSSTALK (all hostile): -52.5dB @5MHz
CONTROLS: Front panel input select and shift
COUPLING: DC
POWER SOURCE: 12V DC; 50mA nom, 80mA max; fuse: 500mA
DIMENSIONS: 21.5cm x 16.3cm x 4.4cm (8.4" x 6.4" x 1.7") W, D, H
WEIGHT: 0.6kg (1.4lbs)
ACCESSORIES: Power supply
1 Specifications are subject to change without notice

KRAMER: SIMPLE CREATIVE TECHNOLOGY
8

Kramer Electronics, Ltd.
Web site: www.kramerelectronics.com
E-mail: [email protected]
P/N: 2900-000357 REV 2
For the latest information on our products and a list of Kramer
distributors, visit our Web site: www.kramerelectronics.com
where updates to this user manual may be found.
We welcome your questions, comments and feedback.
Caution
Safety Warning:
Disconnect the unit from the power supply before
opening/servicing.