Kramer VA-1VGA User manual

Kramer Electronics, Ltd.
USER MANUAL
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Model:
VA-1VGA
EDID Capture

Contents
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Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 2
3 Overview 3
3.1 Defining EDID 3
4 Your VA-1VGA EDID Capture 4
5 Connecting the VA-1VGA EDID Capture 5
5.1 Acquiring the EDID 5
5.2 Reading the EDID 7
6 Technical Specifications 8
Figures
Figure 1: VA-1VGA EDID Capture 4
Figure 2: VA-1VGA – Acquiring the EDID from the Display Device 6
Figure 3: Connecting the VA-1VGA EDID Capture 7
Tables
Table 1: VA-1VGA EDID Capture Functions 4
Table 2: VA-1VGA EDID Capture Technical Specifications 8

Introduction
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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, and presentation professional on a daily
basis. In recent years, we have redesigned and upgraded most of our line, making
the best even better! Our 500-plus different models now appear in eight groups
1
that are clearly defined by function.
Thank you for purchasing the Kramer TOOLS VA-1VGA EDID Capture,
which is ideal for:
Distributing presentation graphics
Using a display at a distance from the computer
Using in graphics production studios
Each package includes the following items:
The VA-1VGA EDID Capture
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
. Be sure that the
VGA cable passes the signals on PINs 12 and 15
1 GROUP 1: Distribution Amplifiers; GROUP 2: Video and Audio Switchers, Matrix Switchers and Controllers; GROUP 3:
Video, Audio, VGA/XGA Processors; GROUP 4: Interfaces and Sync Processors; GROUP 5: Twisted Pair Interfaces;
GROUP 6: Accessories and Rack Adapters; GROUP 7: Scan Converters and Scalers; and GROUP 8: Cables and Connectors
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
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2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.

Overview
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3 Overview
The Kramer VA-1VGA is a unique VGA EDID Capture, with VGA input and
output on 15-pin HD computer graphics video connectors. When the
VA-1VGA is connected to a display device and the CAPTURE EDID button
is pressed, the VA-1VGA reads and stores the EDID (Extended Display
Identification Data) from the display device
1
. The display can be disconnected
and later reconnected without rebooting the operating system.
In addition, the VA-1VGA is:
Housed in a TOOLS enclosure
Powered using a 12V DC adapter
Compliant with the VESA DDC2 standard, allowing the unit to be
operated without the power adapter
2
, when the source complies with this
standard
To achieve the best performance:
Use only good quality connection cables
3
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 VA-1VGA away from moisture, excessive sunlight and
dust
3.1 Defining EDID
EDID (Extended Display Identification Data
4
) is a data-structure that the
display provides to describe its capabilities to a graphics card connected to the
display’s source. The EDID enables the source, such as a PC, to “know” what
kind of monitor is connected to the output.
The EDID includes: the name of the manufacturer, product type, timing data
supported by the display, display size, luminance data, and (for digital
displays only) the pixel mapping data.
1 Some computers need to have the EDID information available when they boot up, otherwise the VGA output may be
disabled
2 There is +5V on PIN 9
3 Available from Kramer Electronics on our Web site at http://www.kramerelectronics.com
4 EDID is defined by a standard published by the Video Electronics Standards Association (VESA)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VA-1VGA EDID Capture
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4 Your VA-1VGA EDID Capture
Figure 1 and Table 1 define the unit.
Figure 1: VA-1VGA EDID Capture
Table 1: VA-1VGA EDID Capture Functions
# Feature Function
1 12V DC +12V DC connector for powering the unit
2 OUTPUT 15-pin HD computer
graphics video connector Connects to the VGA acceptor
3 INPUT 15-pin HD computer
graphics video connector Connects to the VGA source
4 CAPTURE Button Press to acquire the EDID
5 INPUT LED Illuminates when a source (computer) is connected
6 ON LED Illuminates when the power is connected

Connecting the VA-1VGA EDID Capture
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5 Connecting the VA-1VGA EDID Capture
In the example illustrated in Figure 3, a projector is connected to a PC using a
VGA cable and the VA-1VGA. The PC needs the EDID information from the
display otherwise it will disable the output.
The configuration illustrated in Figure 3 requires two separate stages:
The VA-1VGA acquires (reads and stores) the EDID information from
the projector (see section 5.1)
The VA-1VGA is connected between the PC and the remote projector so
the PC can read the acquired information (see section 5.2).
5.1 Acquiring the EDID
To acquire the EDID information, perform the following (see Figure 2):
1. Connect the input VGA connector of the display (for example, a projector) to
the OUTPUT connector of the VA-1VGA.
2. Power the projector on.
3. Connect the 12V DC power connector to the power socket of the VA-1VGA
and plug the adapter to the mains electricity (not shown in this illustration).
Verify that the POWER LED lights.
4. Press the CAPTURE EDID button using a small screwdriver or similar
instrument to access the recessed button. The POWER LED turns off while
the EDID information is read and stored in the VA-1VGA non-volatile
memory. When the POWER LED lights again, the EDID is stored.
5. Disconnect the VGA connector of the projector from the VA-1VGA
OUTPUT connector.
6. Disconnect the 12V DC power source.

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VA-1VGA EDID Capture
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Figure 2: VA-1VGA – Acquiring the EDID from the Display Device

Connecting the VA-1VGA EDID Capture
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5.2 Reading the EDID
For the PC to read the EDID information, perform the following (see
Figure 3):
1. Switch OFF the power on each device before connecting to the VA-1VGA.
2. Connect a VGA source (for example, a VGA computer graphics source) to the
INPUT connector of the VA-1VGA.
3. Connect the projector to the OUTPUT connector of the VA-1VGA.
4. Connect the 12V DC power adapter to the VA-1VGA power socket and
connect the adapter to the mains electricity.
5. Power ON the projector.
6. Power ON the VGA source last while it is connected to the VA-1VGA, so it
can acquire the EDID properly.
Figure 3: Connecting the VA-1VGA EDID Capture

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Technical Specifications
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6 Technical Specifications
VA-1VGA technical specifications are shown in Table 2:
Table 2: VA-1VGA EDID Capture Technical Specifications
1
INPUT: 1 XGA input on a 15-pin HD connector
OUTPUT: 1 XGA output on a 15-pin HD connector
MAX. OUTPUT LEVEL: > 2Vpp
BANDWIDTH (-3dB): 1.8GHz
DIFF. GAIN: 0.02%
DIFF. PHASE: 0.02°
K-FACTOR: < 0.05%
S/N RATIO: 74dB @ 5MHz (unweighted: 66dB)
CONTROLS: Pushbutton for EDID monitor information storage
COUPLING: DC – direct wiring between input and output
POWER SOURCE: 12V DC, 35mA
DIMENSIONS: 6cm x 6.5cm x 3cm (2.4" x 2.6" x 1.2") W, D, H
WEIGHT: 0.15kg (0.33lbs) approx.
ACCESSORIES: 12V DC power supply
1 Specifications are subject to change without notice