Kramer VP-719x1 User manual

Kramer Electronics, Ltd.
USER MANUAL


Models:
VP - 719xl, Presentation Switcher / Scaler
VP - 720xl, Presentation Switcher / Scaler
VP - 724xl, Presentation Switcher / Scaler

Contents
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 1
3 Overview 3
4 Your Presentation Switcher / Scaler 5
5 Installing on a Rack 11
6 Connecting your Presentation Switcher / Scaler 12
6.1 The RGBS and RGsB PINOUTs 13
6.2 Connecting a PC 15
7 Presentation Switcher / Scaler Buttons 16
7.1 Switching an Input 16
7.2 The PIP Button Feature 17
7.2.1 Selecting the PIP Source 17
7.2.2 Activating the PIP Feature 18
7.2.3 The PIP Source (Orange) Frame 18
7.2.4 Toggling between the PIP and the Screen Source (SWAP) 19
7.2.5 PIP Characteristics 19
7.2.5.1 Resizing the PIP 19
7.2.5.2 Moving the Position of the PIP 20
7.3 Locking and Unlocking the Front Panel 21
7.4 The Infra-Red Remote Control Transmitter 21
8 Configuring the VP-724xl via the OSD MENU Screens 24
8.1 Controlling the Brightness and Contrast 25
8.2 Controlling the Gamma and Color 26
8.3 Selecting the Source 27
8.4 Controlling the Scale Geometry 27
8.4.1 Setting the Scale Features 28
8.4.2 Adjusting the Zoom Ratio and Position 29
8.4.2.1 Adjusting the Zoom Ratio 30
8.4.2.2 Adjusting the Zoom Position 31
8.5 Configuring via the Utility Screens 32
8.5.1 Choosing the Graphic Utility Settings 32
8.5.2 Choosing the Video Utility Settings 33
8.5.3 Choosing the Audio Utility Settings 34
8.5.4 Choosing the PIP Utility Settings 34
8.5.5 Choosing the Seamless Switch Utility Settings 35
8.5.6 Choosing the OSD Utility Settings 36
8.5.7 Choosing the Output Utility Settings 37
8.5.7.1 The User Mode Setting 38
8.5.8 Choosing Factory Reset 39
8.5.9 Choosing Advanced Utility Settings 39
8.5.9.1 Setting an Input to a Non-standard Resolution (Example) 41

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Contents
ii
8.6 Verifying Configuration Details via the Information Screen 42
9 Technical Specifications 43
10 VP-724xl Communication Protocol 47
Figures
Figure 1: VP-719xl Presentation Switcher / Scaler Front Panel 6
Figure 2: VP-719xl Presentation Switcher / Scaler Rear Panel 6
Figure 3: VP-720xl Presentation Switcher / Scaler Front Panel 7
Figure 4: VP-720xl Presentation Switcher / Scaler Rear Panel 7
Figure 5: VP-724xl Presentation Switcher / Scaler Front Panel 8
Figure 6: VP-724xl Presentation Switcher / Scaler Rear Panel 8
Figure 7: Connecting the VP-724xl Rear Panel 14
Figure 8: Connecting the PC 15
Figure 9: OSD Input Status 16
Figure 10: PIP Source 17
Figure 11: OSD SWAP Status 19
Figure 12: PIP Size – Split Screen 20
Figure 13: Moving the Position of the PIP 20
Figure 14: Infra-Red Remote Control Transmitter 22
Figure 15: MENU Screen 24
Figure 16: Menu Screen Icons 24
Figure 17: Brightness and Contrast Screen 25
Figure 18: Gamma and Color Screen 26
Figure 19: Source Selection Screen 27
Figure 20: Geometry (Scale and Zoom) Screen 27
Figure 21: Geometry (Scale: Aspect Ratio) Screen – Graphic Source 28
Figure 22: Geometry (Scale: Aspect Ratio) Screen – Video Source 28
Figure 23: Geometry (Zoom) Screen 29
Figure 24: OSD Enlarge Status 30
Figure 25: Geometry (Zoom Ratio) Screen 30
Figure 26: Preset Position Control Keys 31
Figure 27: Navigation Control Keys 31
Figure 28: Geometry (Zoom Position Adjustment) Screen 31
Figure 29: Utility Screen 32
Figure 30: Graphic Setting Utility Screen 32
Figure 31: Video Setting Utility Screen 33
Figure 32: Audio Setting Utility Screen 34
Figure 33: PIP Utility Screen 34
Figure 34: Seamless Switch Utility Screen 35
Figure 35: OSD Setting Utility Screen 36
Figure 36: Output Setting Utility Screen 37
Figure 37: OSD Output Status 37
Figure 38: Output Setting User Mode Setting Utility Screen 38
Figure 39: Factory Reset Utility Screen 39
Figure 40: Advanced Utility Screen 39
Figure 41: Lock Option Screen 40
Figure 42: Mode Define Screen 40

Contents
iii
Figure 43: Non-standard Resolution in the Information Screen 42
Figure 44: Information Screen 42
Tables
Table 1: Front Panel Presentation Switcher / Scaler Features 9
Table 2: Rear Panel Presentation Switcher / Scaler Features 10
Table 3: RGBS and RGsB PINOUTS 13
Table 4: PIP Source Appearance Availability 18
Table 5: Infra-Red Remote Control Transmitter Functions 23
Table 6: Brightness and Contrast Screen Functions 25
Table 7: Gamma and Color Screen Functions 26
Table 8: Geometry Scale Functions 29
Table 9: Geometry Zoom Functions 29
Table 10: Graphic Setting Utility Screen Features 33
Table 11: Video Setting Utility Screen Features 33
Table 12: Audio Setting Utility Screen Features 34
Table 13: PIP Setting Utility Screen Features 35
Table 14: Seamless Switch Utility Screen Features 35
Table 15: OSD Setting Utility Screen Features 36
Table 16: Output Setting Utility Screen Features 37
Table 17: User Mode Setting Definitions 38
Table 18: Advanced Utility Screen Features 40
Table 19: Mode Define Features 41
Table 20: Technical Specifications of the Presentation Switchers / Scalers 43
Table 21: Technical Specifications of the VGA Input Signal 43
Table 22: Technical Specifications of the DVI Input Signal 45
Table 23: Technical Specifications of the Video Input Signal 45
Table 24: Technical Specifications of the HDTV Input Signal 46

Introduction
1
1 Introduction
Welcome to Kramer Electronics (since 1981): a world of unique, creative and
affordable solutions to the infinite 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 8 Groups
1
, which are clearly defined
by function. Congratulations on purchasing your Kramer
VP-719xl/VP-720xl/VP-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:
VP-719xl/VP-720xl/VP-724xl Presentation Switcher / Scaler
Power cord
2
Infra-red remote control transmitter
Null-modem adapter
This user manual
3
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
4
2.1 Quick Start
This Quick start chart summarizes the basic steps.
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 We recommend that you use only the power cord that is supplied with this machine
3 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
Display
Plasma Display
Brightness
and
Contrast
Gamma and
Color
Normal
Presentation
Cinema
Nature
User 1
User 2
Utilities Settings
Graphic Setting
Video Setting
Audio Setting
PIP Setting
Seamless Switch
OSD Setting
Output Setting (
)
Factory Reset
Advanced Features
resolution,
refresh rate
Aspect Ratio
Zoom
Information
Active Input
PIP Source
Resolution
Software Version
Select active
source
s-Video
Player

Betacam
Video Player
DVI Graphics
Source
Computer
Graphics Source

Overview
3
3 Overview
The VP-719xl/VP-720xl/VP-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:
VGA (640x480) 852x1024i 720x483
SVGA (800x600) 1024x1024i 852x480
XGA (1024x768) 1366x768 1400x1050
SXGA (1280x1024) 1365x1024 1280x768*
1
UXGA (1600x1200)
1280x720 User Define
2
The VP-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 resolution
3
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
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

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview
4
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 seven
1
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 so
2
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
button
3
Has two HD15F outputs, that can be used as graphics, or HDTV
4
outputs
Incorporates full ProcAmp
5
for video correction and enhancement
Offers high quality de-interlacing 3:2/2:2 pulldown
6
Can provide non-linear scaling for 4:3, 16:9 transformation
7
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 VP-719xl)
Control your Presentation Switcher / Scaler:
From the front panel buttons
Remotely from the infra-red remote control transmitter
Remotely via RS-232
1 Eight on the VP-724xl
2 See section 8.5.9
3 Also includes a front panel lock that can be programmed via the OSD menu (see section 8.5.9)
4 For VP-724xl
5 Processing amplification enables adjustment of different video and audio signal parameters
6 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)
7 See section 8.4.1

Your Presentation Switcher / Scaler
5
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
Kramer VP-719xl/VP-720xl/VP-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 VP-719xl Presentation Switcher / Scaler
Figure 3 and Figure 4 illustrate the VP-720xl Presentation Switcher / Scaler
Figure 5 and Figure 6 illustrate the VP-724xl Presentation Switcher / Scaler
Table 1 and Table 2 define the Presentation Switcher / Scaler machines
1
.
1 Some items, which appear in the table, do not appear in the illustrations since they are not included in that specific machine

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your Presentation Switcher / Scaler
6
Figure 1: VP-719xl Presentation Switcher / Scaler Front Panel
1
Figure 2: VP-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

Your Presentation Switcher / Scaler
7
Figure 3: VP-720xl Presentation Switcher / Scaler Front Panel
1
Figure 4: VP-720xl Presentation Switcher / Scaler Rear Panel
2
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

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your Presentation Switcher / Scaler
8
Figure 5: VP-724xl Presentation Switcher / Scaler Front Panel
Figure 6: VP-724xl Presentation Switcher / Scaler Rear Panel

Your Presentation Switcher / Scaler
9
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
6 YC2 Press to select the s-Video (Y/C)/audio source 2
7 COMPONENT Press to select the component video/audio source
8 DVI Press to select the DVI/audio source
9 VGA
2
1 Press to select the VGA/audio source 1
10
INPUT SELECTOR
Buttons
1
VGA
2
2 Press to select the VGA/audio source 2
11 PIP Button
3
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
output
14 FREEZE Button Press to freeze/unfreeze the output video image
4
15 MENU Button Displays the OSD menu screen
5
16 ENTER Button Moves to the next level in the OSD screen
17 - Button Decreases the range by one step in the OSD screen
6
18 DOWN Button Moves down one step (in the same level) in the OSD screen
6
19 UP Button Moves up one step (in the same level) in the OSD screen
6
20 + Button Increases the range by one step in the OSD screen
6
21 RESET TO VGA Button Press and hold for a few seconds
7
to reset to the default output resolution
(640x480 @60Hz)
22 PANEL LOCK Button Press and hold to lock/unlock the front panel to prevent unintentional operation
1 When selected, button illuminates. See section 7.1 for details of how to program the INPUT SELECTOR buttons
2 Only the VP-724xl has two VGA INPUT SELECTOR buttons. The VP-719xl and VP-720xl have one VGA button
3 Not available on the VP-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

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your Presentation Switcher / Scaler
10
Table 2: Rear Panel Presentation Switcher / Scaler Features
# Feature Function
1 VIDEO OUT 1
HD15 Connector
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 P
r
, PIN 2
is Y, PIN 3 is P
b
2 VIDEO OUT 2
HD15 Connector
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 P
r
, PIN 2
is Y, PIN 3 P
b
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
8 DVI Connects to the stereo audio input from the DVI graphics source
9 VGA
1
1 Connects to the stereo audio input from the VGA graphics source 1
10
AUDIO IN
Terminal Block
Connectors
VGA
1
2 Connects to the stereo audio input from the VGA graphics source 2
11 LINE AUDIO OUT Terminal
Block Connector
Connects to the stereo audio acceptor
12 SPKR OUT
Terminal Block Connector
Connects to the speakers
13 DVI Connector Connects to the DVI (digital video interface) graphics source
14 VGA
1
1HD15
Connector
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
15 VGA
1
2 HD15
Connector
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
16 YRCA
Connector
17 Pb/Cb RCA
Connector
18
COMPONENT
Pr/Cr RCA
Connector
Connect to the component (Y, Pb/Cb, Pr/Cr) or RGB video source. If RGB
colorspace is used, connect as follows:
For video frequencies
2
, connect:
Green to the Y connector
Blue to the Pb/Cb connector
Red to the Pr/Cr connector
For Graphics frequencies
3
, connect:
Red to the Y connector
Green to the Pb/Cb connector
Blue to the Pr/Cr connector
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
VIDEO INPUTS
AV1 RCA Connector
Connects to the composite video source 1
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
1 Only the VP-724xl has 2 VGA connectors. The VP-719xl and VP-720xl have 1 VGA connector
2 50Hz or 60Hz interlaced video
3 Including HD (480p, 576p, 720p and 1080i)

Installing on a Rack
11
5 Installing on a Rack
This section describes what to do before installing on a rack and 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
5 to 65% RHL, non-condensing
-20 to +70 Deg. Centigrade
5 to 95% RHL, non-condensing
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
conditions, as the operating ambient temperature of a
closed or multi unit rack assembly may exceed the
room ambient temperature.
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
against the rack rails, and insert the
proper screws (not provided) through
each of the four holes in the rack
ears.
Note that:
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)




In some models, the front panel
may feature built-in rack ears
Once rack mounted, enough air will still flow around the
machine.
The machine is placed straight in the correct horizontal
position.
You do not overload the circuit(s). When connecting
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
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.

CAUTION!!
Before Installing on a Rack
How to Rack Mount
To rack-mount a machine:
1
1
2
2
3
4
5

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting your Presentation Switcher / Scaler
12
6 Connecting your Presentation Switcher / Scaler
To connect the VP-724xl as illustrated in the example
1
in Figure 7, do the
following
2
:
1. Connect the following video sources
3
:
One
4
composite video source (for example, a composite video player) to
the AV1 RCA connector
One
4
s-Video source (for example, an s-Video player) to the YC1 4p
connector
A component video
5
source (for example, a Betacam video player) to the
three RCA connectors, Y, Pb/Cb, and Pr/Cr
6
One computer graphics source
7
to the VGA 1 HD15 connector
A DVI graphics source to the DVI connector
2. Connect the stereo audio sources
8
(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 connectors
9
to
the video acceptors, for example, a plasma display and a VGA display.
1 From this section on, all the information is relevant to the VP-719xl, VP-720xl and VP-724xl machines, unless noted
otherwise
2 Switch OFF the power on each device before connecting it to your VP-724xl. After connecting your VP-724xl, 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 only on the VP-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

Connecting your Presentation Switcher / Scaler
13
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 cord
1
(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 progressive
2
and interlaced
3
RGBS and RGsB
pinouts:
Table 3: RGBS and RGsB PINOUTS
Input Color Space PINOUT
VGA RGsB Green + sync, to PIN 1
Blue to PIN 2
Red to PIN 3
RGBS Red to PIN 1
Green to PIN 2
Blue to PIN 3
Hs (H and V) to PIN 13
YUV RGsB Green + sync to Y
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

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting your Presentation Switcher / Scaler
14
RS-232
Composite Video
Player
Display
Plasma
Display
Figure 7: Connecting the VP-724xl Rear Panel

Connecting your Presentation Switcher / Scaler
15
6.2 Connecting a PC
You can connect a PC (or other controller) to the VP-724xl via the RS-232
port for remote control, and for upgrading the firmware.
To connect a PC to a VP-724xl unit, using the Null-modem adapter provided
with the machine (recommended):
Connect the RS-232 DB9 rear panel port on the VP-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 VP-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 VP-724xl unit, forming a cross-connection
1
, as Figure 8 illustrates
D
B9 (To Presentation
Switcher / Scaler)
DB9 (FromPC)
Figure 8: Connecting the PC
1 Also known as a Null-modem connection

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Presentation Switcher / Scaler Buttons
16
7 Presentation Switcher / Scaler Buttons
The VP-724xl includes the following front panel buttons:
Eight INPUT SELECTOR buttons
1
, see section 7.1
A PIP button
2
, see section 7.2
BLANK, MUTE and FREEZE buttons
Six OSD buttons
A RESET TO VGA button
A PANEL LOCK button, see section 7.3
7.1 Switching an Input
Each INPUT SELECTOR button can be used to select the source. It can also
be programmed to freeze the image or display a blank screen when pressed
again. Refer to section 8.5.9 for details.
You can switch seamlessly
3
between each input
4
that is connected to a source,
by pressing the appropriate INPUT SELECTOR button. The OSD status
appears superimposed over the top right corner of the screen for a few
seconds, as Figure 9 illustrates:
AV-2
Auto(NTSC System)
Figure 9: OSD Input Status
1 The VP-719xl and VP-720xl have seven INPUT SELECTOR buttons
2 Not available on the VP-719xl
3 For glitchless transitions between inputs
4 To set the image transition speed (fast, safe or moderate), see section 8.5.5