Kramer VA-40 Manuel utilisateur

Kramer Electronics, Ltd.

USER MANUAL

Model:

VA-40

4 Channel PC Image Shifter

Contents

Introduction 1

Getting Started 1

2.1

Quick Start 2

Overview 3

Your VA-40 4 Channel PC Image Shifter 4

Connecting the VA-40 4 Channel PC Image Shifter 5

Operating the VA-40 6

6.1

Resetting the Memory 6

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 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

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 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

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

2.1 Quick Start

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

Overview

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

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

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 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 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. Connect the computer graphics video signal cable from each source PC

(from one to four) to its INPUT connector

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 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 Technical Specifications

The VA-40 technical specifications are shown in Table 2:

Table 2: VA-40 Technical Specifications

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

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