Kramer VA-1VGA Bedienungsanleitung

Kramer Electronics, Ltd.

USER MANUAL

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Model:

VA-1VGA

EDID Capture

Contents

Introduction 1

Getting Started 1

2.1

Quick Start 2

Overview 3

3.1

Defining EDID 3

Your VA-1VGA EDID Capture 4

Connecting the VA-1VGA EDID Capture 5

5.1

Acquiring the EDID 5

5.2

Reading the EDID 7

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

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

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 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

. 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

2.1 Quick Start

This quick start chart summarizes the basic setup and operation steps.

Overview

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

. 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

, when the source complies with this

standard

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 VA-1VGA away from moisture, excessive sunlight and

dust

3.1 Defining EDID

EDID (Extended Display Identification Data

) 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

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

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

Figure 2: VA-1VGA – Acquiring the EDID from the Display Device

Connecting the VA-1VGA EDID Capture

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

6 Technical Specifications

VA-1VGA technical specifications are shown in Table 2:

Table 2: VA-1VGA EDID Capture Technical Specifications

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

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