Comprehensive CVG-724xl User Manual

USER MANUAL





Models:

CVG-719xl,

CVG-720xl,

CVG-724xl,

Presentation Switcher / Scaler

Presentation Switcher / Scaler

Presentation Switcher / Scaler

Contents

1

Introduction 1

2

Getting Started 1

3

Overview 1

4

Your Presentation Switcher / Scaler 3

5

Installing on a Rack 9

6

Connecting your Presentation Switcher / Scaler 10

6.1 The RGBS and RGsB PINOUTs 11

6.2 Connecting a PC 13

7

Presentation Switcher / Scaler Buttons 14

7.1 Switching an Input 14

7.2 The PIP Button Feature 15

7.2.1 Selecting the PIP Source 15

7.2.2 Activating the PIP Feature 16

7.2.3 The PIP Source (Orange) Frame 16

7.2.4 Toggling between the PIP and the Screen Source (SWAP) 17

7.2.5 PIP Characteristics 17

7.2.5.1 Resizing the PIP 17

7.2.5.2 Moving the Position of the PIP 18

7.3 Locking and Unlocking the Front Panel 19

7.4 The Infra-Red Remote Control Transmitter 19

8

Configuring the CVG-724xl via the OSD MENU Screens 22

8.1 Controlling the Brightness and Contrast 23

8.2 Controlling the Gamma and Color 24

8.3 Selecting the Source 25

8.4 Controlling the Scale Geometry 25

8.4.1 Setting the Scale Features 26

8.4.2 Adjusting the Zoom Ratio and Position 27

8.4.2.1 Adjusting the Zoom Ratio 28

8.4.2.2 Adjusting the Zoom Position 29

8.5 Configuring via the Utility Screens 30

8.5.1 Choosing the Graphic Utility Settings 30

8.5.2 Choosing the Video Utility Settings 31

8.5.3 Choosing the Audio Utility Settings 32

8.5.4 Choosing the PIP Utility Settings 32

8.5.5 Choosing the Seamless Switch Utility Settings 33

8.5.6 Choosing the OSD Utility Settings 34

8.5.7 Choosing the Output Utility Settings 35

8.5.7.1 The User Mode Setting 36

8.5.8 Choosing Factory Reset 37

8.5.9 Choosing Advanced Utility Settings 37

8.5.9.1 Setting an Input to a Non-standard Resolution (Example) 39

8.6 Verifying Configuration Details via the Information Screen 40

9

Technical Specifications 41

i

10

CVG-724xl Communication Protocol 45

Figures

Figure 1: CVG-719xl Presentation Switcher / Scaler Front Panel 4
Figure 2 CVG-719xl Presentation Switcher / Scaler Rear Panel 4
Figure 3: CVG-720xl Presentation Switcher / Scaler Front Panel 5
Figure 4: CVG-720xl Presentation Switcher / Scaler Rear Panel 5
Figure 5: CVG-724xl Presentation Switcher / Scaler Front Panel 6
Figure 6: CVG-724xl Presentation Switcher / Scaler Rear Panel 6
Figure 7: Connecting the CVG-724xl Rear Panel 12
Figure 8: Connecting the PC 13
Figure 9: OSD Input Status 14
Figure 10: PIP Source 15
Figure 11: OSD SWAP Status 17
Figure 12: PIP Size – Split Screen 18
Figure 13: Moving the Position of the PIP 18
Figure 14: Infra-Red Remote Control Transmitter 20
Figure 15: MENU Screen 22
Figure 16: Menu Screen Icons 22
Figure 17: Brightness and Contrast Screen 23
Figure 18: Gamma and Color Screen 24
Figure 19: Source Selection Screen 25
Figure 20: Geometry (Scale and Zoom) Screen 25
Figure 21: Geometry (Scale: Aspect Ratio) Screen – Graphic Source 26
Figure 22: Geometry (Scale: Aspect Ratio) Screen – Video Source 26
Figure 23: Geometry (Zoom) Screen 27
Figure 24: OSD Enlarge Status 28
Figure 25: Geometry (Zoom Ratio) Screen 28
Figure 26: Preset Position Control Keys 29
Figure 27: Navigation Control Keys 29
Figure 28: Geometry (Zoom Position Adjustment) Screen 29
Figure 29: Utility Screen 30
Figure 30: Graphic Setting Utility Screen 30
Figure 31: Video Setting Utility Screen 31
Figure 32: Audio Setting Utility Screen 32
Figure 33: PIP Utility Screen 32
Figure 34: Seamless Switch Utility Screen 33
Figure 35: OSD Setting Utility Screen 34
Figure 36: Output Setting Utility Screen 35
Figure 37: OSD Output Status 35
Figure 38: Output Setting User Mode Setting Utility Screen 36
Figure 39: Factory Reset Utility Screen 37
Figure 40: Advanced Utility Screen 37
Figure 41: Lock Option Screen 38
Figure 42: Mode Define Screen 38
Figure 43: Non-standard Resolution in the Information Screen 40
Figure 44: Information Screen 40

ii

Tables

Table 1: Front Panel Presentation Switcher / Scaler Features 7
Table 2: Rear Panel Presentation Switcher / Scaler Features 8
Table 3: RGBS and RGsB PINOUTS 11
Table 4: PIP Source Appearance Availability 16
Table 5: Infra-Red Remote Control Transmitter Functions 21
Table 6: Brightness and Contrast Screen Functions 23
Table 7: Gamma and Color Screen Functions 24
Table 8: Geometry Scale Functions 27
Table 9: Geometry Zoom Functions 27
Table 10: Graphic Setting Utility Screen Features 31
Table 11: Video Setting Utility Screen Features 31
Table 12: Audio Setting Utility Screen Features 32
Table 13: PIP Setting Utility Screen Features 33
Table 14: Seamless Switch Utility Screen Features 33
Table 15: OSD Setting Utility Screen Features 34
Table 16: Output Setting Utility Screen Features 35
Table 17: User Mode Setting Definitions 36
Table 18: Advanced Utility Screen Features 38
Table 19: Mode Define Features 39
Table 20: Technical Specifications of the Presentation Switchers / Scalers 41
Table 21: Technical Specifications of the VGA Input Signal 41
Table 22: Technical Specifications of the DVI Input Signal 43
Table 23: Technical Specifications of the Video Input Signal 43
Table 24: Technical Specifications of the HDTV Input Signal 44

iii

1 Introduction

Congratulations on purchasing your CVG-719xl / CVG -720xl / CVG -724xl
Presentation Switcher / Scaler, which is ideal for the following typical
applications:

 Projection systems in conference rooms, boardrooms, auditoriums, hotels and

churches

 Production studios, rental and staging
 Any application where high quality conversion and switching of multiple and

different video signals to graphical data signals is required for projection
purposes

The package includes the following items:

 CVG-719xl / CVG -720xl / CVG -724xl Presentation Switcher / Scaler
 Power cord1
 Infra-red remote control transmitter
 Null-modem adapter
 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

3 Overview

The CVG-719xl / CVG -720xl / CVG -724xl is a Presentation Switcher /
Scaler designed for a wide variety of presentation and multimedia

applications. It is a true multi-standard video to RGBHV (pixel) scaler and a
seamless presentation switcher. It converts video, s-Video, component video,
VGA-through-UXGA and DVI signals to a range of user-selectable VESA
and HDTV pixel rates, as well as some other special resolutions. Using the
Presentation Switcher / Scaler, you can select any one of the inputs and scale
that input to the output at the set resolution.

The Presentation Switchers / Scalers support the following user-selectable
output pixel rates:

1 We recommend that you use only the power cord that is supplied with this machine

1

 VGA (640x480)  852x1024i  720x483

 SVGA (800x600)  1024x1024i  852x480

 XGA (1024x768)  1366x768  1400x1050

 SXGA (1280x1024)  1365x1024  1280x768*1

 UXGA (1600x1200)  1280x720  User Define2

The CVG -724xl also has the following user selectable output pixel rates:
480p, 720p, 1080i and 1080p. Each Presentation Switcher / Scaler:

 Digitally reprocesses the signal to correct mastering errors, and regenerates the

video at a higher line and pixel rate format, providing native-resolution video for
LCD, DLP and plasma displays

 Up- and down-scales any graphics resolution to any other resolution3
 Incorporates a unique graphics-scaling engine with image enhancement

algorithms, which are built into the firmware

 Is specifically designed to improve video quality by reducing chroma noise
 Scales and zooms (to up to 400% of the original size)
 Includes a built-in power amplifier of 2x5Watt RMS, ample to fill a

presentation room. Audio volume can be easily and rapidly controlled via the
front panel buttons

 Switches the audio channels in audio-follow-video mode
 Includes an OSD (On-Screen Display) – for making adjustments – that can be

located anywhere on the screen, and can be doubled in size
For example, the OSD can be used to deactivate the source prompt, choose the
color of the blank screen, and choose from three seamless switching image
transition speeds

 Includes seven4 multi-functional INPUT SELECTOR buttons that can cycle

between selecting a source, freezing that source, or deactivating that source (and
displaying a blank screen), if programmed to do so5

 Includes a BLANK button, a MUTE button; a FREEZE button; a RESET TO

VGA button (to hardware-reset the output resolution); and a PANEL LOCK
button6

1 This is not a standard VESA resolution and its parameters vary from manufacturer to manufacturer. Therfore, use this

resolution with caution. It is also possible to use the parameters of this resolution in combination with the User Defined

resolution. There is also an RS-232 command for this resolution

2 Recommended for advanced users only – non-standard settings may not be recognized by the display device

3 For example, scaling a VGA input to an UXGA output, or an SXGA input to an SVGA output

4 Eight on the CVG-724xl

5 See section 8.5.9

6 Also includes a front panel lock that can be programmed via the OSD menu (see section 8.5.9)

2

 Has two HD15F outputs, that can be used as graphics, or HDTV1 outputs
 Incorporates full ProcAmp2 for video correction and enhancement
 Offers high quality de-interlacing 3:2/2:2 pulldown3
 Can provide non-linear scaling for 4:3, 16:9 transformation4
 Supports firmware upgrade via RS-232
 Includes non-volatile memory that retains the last setting, after switching the

power off and then on again

 Includes a built-in Picture-in-Picture (PIP) inserter (not available on the

CVG-719xl)

Control your Presentation Switcher / Scaler:

 From the front panel buttons
 Remotely from the infra-red remote control transmitter
 Remotely via RS-232

To achieve the best performance:
 Connect only good quality connection cables, thus avoiding 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 and position your

CVG-719xl / CVG -720xl / CVG -724xl away from moisture, excessive
sunlight and dust

4 Your Presentation Switcher / Scaler

This section defines each of the Presentation Switcher / Scaler machines:

 Figure 1 and Figure 2 illustrate the CVG-719xl Presentation Switcher / Scaler
 Figure 3 and Figure 4 illustrate the CVG-720xl Presentation Switcher / Scaler
 Figure 5 and Figure 6 illustrate the CVG-724xl Presentation Switcher / Scaler

Table 1 and Table 2 define the Presentation Switcher / Scaler machines5.

1 For CVG-724xl

2 Processing amplification enables adjustment of different video and audio signal parameters

3 Accommodates the frame-rate of a converted movie (24 frames per second) to video frequencies (25 frames per second

(PAL); 30 frames per second (NTSC)

4 See section 8.4.1

5 Some items, which appear in the table, do not appear in the illustrations since they are not included in that specific machine

3

Figure 1: CVG-719xl Presentation Switcher / Scaler Front Panel1

Figure 2 CVG-719xl Presentation Switcher / Scaler Rear Panel

2

1 Items 10 and 11, which appear in Table 1 are not included in this machine

2 Items 10 and 15, which appear in Table 2 are not included in this machine

4

Figure 3: CVG-720xl Presentation Switcher / Scaler Front Panel1

Figure 4: CVG-720xl Presentation Switcher / Scaler Rear Panel2

1 Item 10, which appears in Table 1 is not included in this machine

2 Items 10 and 15, which appear in Table 2 are not included in this machine

5

Figure 5: CVG-724xl Presentation Switcher / Scaler Front Panel

Figure 6: CVG-724xl Presentation Switcher / Scaler Rear Panel

6

Table 1: Front Panel Presentation Switcher / Scaler Features

# Feature Function

1 POWER Switch Illuminated switch for turning the machine ON or OFF

2 IR Receiver / LED Red when the unit accepts IR remote commands

3 AV1 Press to select the composite video/audio source 1

4 AV2 Press to select the composite video/audio source 2

5 YC1 Press to select the s-Video (Y/C)/audio source 1

1

6 YC2 Press to select the s-Video (Y/C)/audio source 2

7 COMPONENT Press to select the component video/audio source

Buttons

8 DVI Press to select the DVI/audio source

9 VGA2 1 Press to select the VGA/audio source 1

INPUT SELECTOR

10

11 PIP Button3 Toggles the picture-in-picture function (see section 7.2)

12 BLANK Button Press to toggle between a blank screen (blue or black screen)4 and the display

13 MUTE Button Press to toggle between muting (blocking out the sound) and enabling the audio

14 FREEZE Button Press to freeze/unfreeze the output video image4

15 MENU Button Displays the OSD menu screen5

16 ENTER Button Moves to the next level in the OSD screen
17 - Button Decreases the range by one step in the OSD screen6

18 DOWN Button Moves down one step (in the same level) in the OSD screen6

19 UP Button Moves up one step (in the same level) in the OSD screen6

20 + Button Increases the range by one step in the OSD screen6

21 RESET TO VGA Button Press and hold for a few seconds7 to reset to the default output resolution

22 PANEL LOCK Button Press and hold to lock/unlock the front panel to prevent unintentional operation

VGA2 2 Press to select the VGA/audio source 2

output

(640x480 @60Hz)

1 When selected, button illuminates. See section 7.1 for details of how to program the INPUT SELECTOR buttons

2 Only the CVG-724xl has two VGA INPUT SELECTOR buttons. The CVG-719xl and CVG-720xl have one VG A button

3 Not available on the CVG-719xl

4 Also available via each INPUT SELECTOR button, when programmed accordingly (see section 7.1)

5 Or moves to the previous level in the OSD screen

6 When pressing the button continuously, you can speed up its response. For step-by-step response, press and release the

button as many times as needed

7 Until you see the screen refresh

7

Terminal Block

Table 2: Rear Panel Presentation Switcher / Scaler Features

# Feature Function

1 VIDEO OUT 1

HD15 Connector

2 VIDEO OUT 2

HD15 Connector

3 AV1 Connects to the stereo audio input from composite video source 1

4 AV2 Connects to the stereo audio input from composite video source 2

5 YC1 Connects to the stereo audio input from s-Video source 1

6 YC2 Connects to the stereo audio input from s-Video source 2
7 COMP Connects to the stereo audio input from the component video source

Connectors

8 DVI Connects to the stereo audio input from the DVI graphics source

9 VGA1 1 Connects to the stereo audio input from the VGA graphics source 1

10

11 LINE AUDIO OUT Terminal

12 SPKR OUT

13 DVI Connector Connects to the DVI (digital video interface) graphics source

14 VGA1 1 HD15

15 VGA1 2 HD15

16 Y RCA

17 Pb/Cb RCA

18

19 YC2 4p Connector Connects to the s-Video source 2

20 AV2 RCA Connector Connects to the composite video source 2
21 YC1 4p Connector Connects to the s-Video source 1

22

23 RS-232 DB 9 Connector Connects to PC or Serial Controller

24 Power Connector with Fuse AC connector enabling power supply to the unit

VGA1 2 Connects to the stereo audio input from the VGA graphics source 2

AUDIO IN

Block Connector

Terminal Block Connector

Connector

Connector

Connector

Connector

VIDEO INPUTS

COMPONENT

Pr/Cr RCA

Connector

AV1 RCA Connector Connects to the composite video source 1

Connects to the video acceptor (for example, a plasma display, projector or
monitor) that displays the scaled output

In the default HDTV mode, the signal goes out via 3 PINS: PIN 1 is Pr, PIN 2
is Y, PIN 3 is P

Connects to the video acceptor (for example, a plasma display, projector or
monitor) that displays the scaled output
In the default HDTV mode, the signal goes out via 3 PINS: PIN 1 is Pr, PIN 2
is Y, PIN 3 Pb

Connects to the stereo audio acceptor

Connects to the speakers

Connects to the VGA (analog interface) graphics source 1. When
connecting an HDTV source, the signal goes in via 3 PINS: PIN 1 is Y, PIN
2 is Pb, and PIN 3 is Pr

Connects to the VGA (analog interface) graphics source 2. When
connecting an HDTV source, the signal goes in via 3 PINS: PIN 1 is Y, PIN
2 is Pb, and PIN 3 is Pr

Connect to the component (Y, Pb/Cb, Pr/Cr) or RGB video source. If RGB
colorspace is used, connect as follows:
For video frequencies2, connect:

 Green to the Y connector
 Blue to the Pb/Cb connector
 Red to the Pr/Cr connector

For Graphics frequencies3, connect:

 Red to the Y connector

 Green to the Pb/Cb connector

 Blue to the Pr/Cr connector

b

1 Only the CVG-724xl has 2 VGA connectors. The CVG-719xl and CVG-720xl have 1 VGA connector

2 50Hz or 60Hz interlaced video

3 Including HD (480p, 576p, 720p and 1080i)

8

Before Installing on a Rack

5 Installing on a Rack

This section describes what to do before installing on a rack and how to rack
mount.

How to Rack Mount

Before installing on a rack, be sure that the environment is
within the recommended range:

Operating temperature range +5 to +45 Deg. Centigrade

Operating humidity range

Storage temperature range

Storage humidity range

When installing on a 19" rack, avoid hazards by taking
care that:

It is located within the recommended environmental

1

conditions, as the operating ambient temperature of a
closed or multi unit rack assembly may exceed the
room ambient temperature.

Once rack mounted, enough air will still flow around the

2

machine.

The machine is placed straight in the correct horizontal

3

position.

You do not overload the circuit(s). When connecting

4

the machine to the supply circuit, overloading the
circuits might have a detrimental effect on overcurrent
protection and supply wiring. Refer to the appropriate
nameplate ratings for information. For example, for
fuse replacement, see the value printed on the product
label.

The machine is earthed (grounded) in a reliable way

5

and is connected only to an electricity socket with
grounding. Pay particular attention to supply
connections other than direct connections to the
branch circuit (for example, the use of power strips),
and that you use only the power cord that is supplied
with the machine.

5 to 65% RHL, non-condensing

-20 to +70 Deg. Centigrade

5 to 95% RHL, non-condensing



CAUTION!!

To rack-mount a machine:

1

Attach both ear brackets to the
machine. To do so, remove the
screws from each side of the machine
(3 on each side), and replace those
screws through the ear brackets.

Place the ears of the machine

2

against the rack rails, and insert the
proper screws (not provided) through
each of the four holes in the rack
ears.

Note that:



In some models, the front panel
may feature built-in rack ears

Detachable rack ears can be removed



for desktop use

Always mount the machine in the rack



before you attach any cables or
connect the machine to the power

If you are using a Kramer rack adapter



kit (for a machine that is not 19"), see
the Rack Adapters user manual for
installation instructions (you can
download it at:
http://www.kramerelectronics.com)

9

6 Connecting your Presentation Switcher / Scaler

To connect the CVG-724xl as illustrated in the example1 in Figure 7, do the
following2:

1. Connect the following video sources3:

 One4 composite video source (for example, a composite video player) to

the AV1 RCA connector

 One4 s-Video source (for example, an s-Video player) to the YC1 4p

connector

 A component video5 source (for example, a Betacam video player) to the

three RCA connectors, Y, Pb/Cb, and Pr/C

 One computer graphics source7 to the VGA 1 HD15 connector
 A DVI graphics source to the DVI connector

2. Connect the stereo audio sources8 (not illustrated in Figure 7):

 The audio of the composite video source 1 to the AUDIO IN AV1

terminal block connector

 The audio of s-Video source 1 to the AUDIO IN YC1 terminal block

connector

 The audio of the component video source to the AUDIO IN COMP

terminal block connector

 The audio of computer graphics source to the AUDIO IN VGA1 terminal

block connector

 The audio of the DVI graphics source to the AUDIO IN DVI terminal

block connector

3. Connect the VIDEO OUT 1 and VIDEO OUT 2 HD15F connectors9 to
the video acceptors, for example, a plasma display and a VGA display.

6

r

1 From this section on, all the information is relevant to th e CVG-719xl, CVG-720xl and CVG-724xl machines, unless noted

otherwise

2 Switch OFF the power on each device before connecting it to your CVG-724xl. After conn ecting your CVG-724 xl, switch

on its power and then switch on the power on each device

3 You do not have to connect all the inputs

4 Although in the example illustrated in Figure 7 only one source is connected, you may connect both sources simultaneously

5 Sometimes called YUV, or Y, B-Y, R-Y, or Y, Pb, Pr

6 Alternatively, you can connect an RGB signal (not shown in Figure 7), as follows: Red to the Y connector, Green to the

Pb/Cb connector, and Blue to the Pr/Cr connector

7 You can connect up to two graphic sources o nly on the CVG-724xl, other models in this series have only one VGA graphic

source

8 As required. Not all devices need to be connected

9 In the HDTV mode, the signal goes out via three PINS: PIN 1 is Red or Pr, PIN 2 is Green or Y, PIN 3 is Blue or Pb

10

4. Connect the LINE AUDIO OUT terminal block connector to one of the
audio acceptors, for example, speakers (not illustrated in Figure 7)

5. Connect the SPKR OUT terminal block to a pair of loud speakers.

6. The power cord1 (the power connector is not illustrated in Figure 7).

7. A PC (optional), as section 6.2 describes.

6.1 The RGBS and RGsB PINOUTs

Table 3 defines both the progressive2 and interlaced3 RGBS and RGsB
pinouts:

Table 3: RGBS and RGsB PINOUTS

Input Color Space PINOUT

VGA RGsB Green + sync, to PIN 1

RGBS Red to PIN 1

YUV RGsB Green + sync to Y

Blue to PIN 2
Red to PIN 3

Green to PIN 2
Blue to PIN 3
Hs (H and V) to PIN 13

Blue to Pb
Red to Pr

1 We recommend that you use only the power cord that is supplied with this machine

2 A display mode in which all the horizontal lines of an image are displayed in a single frame (one field)

3 A display mode in which a frame consists of two separate fields with the first field consisting of odd horizontal lines and the

second field even horizontal lines

11

RS-232

Composite Video

Plasma
Display

Display

Player

Figure 7: Connecting the CVG-724xl Rear Panel

12

D

B9 (To Presentation

Switcher / Scaler)

6.2 Connecting a PC

You can connect a PC (or other controller) to the CVG-724xl via the RS-232
port for remote control, and for upgrading the firmware.

To connect a PC to a CVG-724xl unit, using the Null-modem adapter
provided with the machine (recommended):

 Connect the RS-232 DB9 rear panel port on the CVG-724xl unit to the

Null-modem adapter and connect the Null-modem adapter with a 9-wire flat
cable to the RS-232 DB9 port on your PC

To connect a PC to a CVG-724xl unit, without using a Null-modem adapter:
 Connect the RS-232 DB9 port on your PC to the RS-232 DB9 rear panel port

on the CVG-724xl unit, forming a cross-connection1, as Figure 8 illustrates

DB9 (From PC)

Figure 8: Connecting the PC

1 Also known as a Null-modem connection

13