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INTRODUCTION 

1.1. 

General Introduction 

VP-791 is a very flexible image scaler developed specifically for driving large screen displays from SD-
SDI, HD-SDI and 3G-SDI serial digital source.   

VP-791 features a state of the art digital image processor which provides market leading HD& SD per-
pixel multiple Iow-angle motion-adaptive de-interlacing and automatic film pull-down correction for 3:2 
and 2:2, significantly outperforming the capabilities of benchmark competitor products. 

VP-791 features excellent image processing algorithms for the very best scaling, film and video noise 
reduction and MPEG artefact reduction.  

VP-791 uses a high performance SDI de-serializer with cable equalization.   

The output format can be set to I/O Lock mode where it locks the output frame rate to the input frame 
rate dynamically without frame rate conversion so as to reduce system latency, or it can be set to a fixed 
output  frame  rate  for  driving  basic  screens  which  are  not  50Hz-compatible.  Furthermore,  the  VP-791 
can  be  set  to  have  the  output  resolution  match  the  input  resolution  to  preserve  aspect  ratio.  A  Low 
latency mode with non-motion adaptive reduced processing is available to further reduce latency. 

Outputs are available in DVI digital formats. 

VP-791 supports Pan, Zoom and Tilt to select a part of the input image, fill the screen and pan within it. 

VP-791  features  embedded  warp  functions  to  adjust  the  image  in  a  projection  scenario  to  match  a 
rotated,  tilted  or  curved  screen.  For  9:16  portrait  mode  signage  special  predefined  warp  maps  are 
available to rotate and stretch a video image to fill a +/-90° rotated display panel. 

System control is via an OSD controlled by keys on the front panel or through an intuitive ‘Windows’ 
application connected via a normal RS232 serial port or via TCP/IP (ethernet). 

 

 

 

1.2. 

Packing List 

 
 
VP-791 is supplied with the following: 

1) This manual 

2) 3 pin plug IEC mains cable 

3) DVI-D output cable 

4) CD 

Summary of Contents for VP-791

Page 1: ...KRAMER ELECTRONICS LTD USER MANUAL MODEL VP 791 SDI to DVI HDMI Scaler...

Page 2: ...VP 791 Operating Instructions Version K 1 4...

Page 3: ...Kramer has tested the hardware firmware software and reviewed the documentation KRAMER MAKES NO WARRANTY OR REPRESENTATION EITHER EXPRESS OR IMPLIED WITH RESPECT TO THIS HARDWARE FIRMWARE SOFTWARE OR...

Page 4: ...6 Color 12 3 6 1 Black Level Offset 12 3 6 2 Black Level 12 3 6 3 Contrast 12 3 6 4 Saturation 12 3 6 5 Hue 12 3 6 6 RGB values 12 3 6 7 Color Temp 12 3 6 9 Input Gamma 12 3 7 Geometry 13 3 7 1 Horizo...

Page 5: ...FIRMWARE UPDATE 19 5 1 Introduction 19 5 2 Updating Firmware 19 ENVIRONMENTAL AND EMC 20 6 1 Recommended Operating Conditions 20 6 2 Storage 20 6 3 CE and FCC Compliance 20...

Page 6: ...FIED SERVICE PERSONNEL 4 TO PREVENT SHOCK OR FIRE HAZARD DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE IF SUCH EXPOSURE OCCURS REMOVE THE PLUG FROM THE MAINS OUTLET AND HAVE THE EXPOSED UNIT CHECKE...

Page 7: ...stem latency or it can be set to a fixed output frame rate for driving basic screens which are not 50Hz compatible Furthermore the VP 791 can be set to have the output resolution match the input resol...

Page 8: ...supply requiring a 100V 264VAC 50 and 60Hz mains connection 2 2 2 3GSDI Input Format SD SDI HD SDI YCbCr 4 2 2 serial digital component video 3G SDI 4 2 2 serial digital component video Input impedanc...

Page 9: ...VP 791 CONTROL 3 1 Menu Tree VP 791 Menu Tree 1 st Level 2 nd Level 3 rd Level 4 th Level...

Page 10: ......

Page 11: ......

Page 12: ...apply a change go to the menu item press the menu key and make a parameter change with the up and down key Confirm the change by pressing the Menu key This will also bring you back to the submenu Wit...

Page 13: ...3G SDI input 3 4 DVI I output connector only the digital DVI D is supported HDMI receivers can be connected with a DVI HDMI adapter cable 5 TCP IP port 6 USB port 7 RS232 port 8 Power supply connecto...

Page 14: ...rameters are specific to your chosen input channel and input signal type they are not global to the unit All Output parameters are global 3 4 Input The list of inputs are 3G SDI and Test Pattern Test...

Page 15: ...e If the HDMI DVI output does not behave as expected because the HDMI display is not evaluating AVInfoFrames properly the range can be changed manually A limited video range uses the following greysca...

Page 16: ...te is 50 Hz and the Frame rate is set to 60Hz the output is in free run mode The status line of the OSD window under Sync Mode indicates if the output signal is locked to the input signal I O Locked o...

Page 17: ...ps of 1 Control of video hue applies to all video inputs but not computer input signals or formats 3 6 6 RGB values This is a user defined color temperature setting whereby individual R G B gain and o...

Page 18: ...nd Barrel distortion of the lens or screen can be adjusted again Predefined warp maps for portrait mode applications are provided A 9 16 input image area is rotated and scaled such that it fills a 16...

Page 19: ...PTZ settings can be saved per signal mode or globally The Zoom slider allows to zoom into the image or shrink it When Aspect Lock is set to ON the separate slider for zooming vertically is greyed out...

Page 20: ...mprove detail definition and clarity without causing image ringing or ghosting It improves both horizontal and vertical detail Correct setting of the detail enhance filter can make SD signals look vir...

Page 21: ...Best Picture In Best Picture optimum image processing is applied in Low Latency mode the lowest latency is achieved The flicker of interlaced video is not suppressed totally for the latter setting Thu...

Page 22: ...ice versa it is strongly recommended that VP 791 is powered down after the change then powered back up so that it is properly recognised by other devices on the network In the Network Settings menu is...

Page 23: ...assigned to VP 791 can be found in the System Network Settings menu 4 3 Discovery Tool Kramer provides a DiscoveryTool exe Windows application to identify Kramer boxes in the network Clicking on the l...

Page 24: ...ed normally Whilst the Menu key is still pressed the 3GSDI input channel LED is flashing When in Updater mode the 3GSDI input channel LED is flashing two times repeatedly Now the USB connection betwee...

Page 25: ...are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency ener...

Page 26: ...ributors visit our Web site where updates to this user manual may be found We welcome your questions comments and feedback Web site www kramerelectronics com E mail info kramerel com SAFETY WARNING Di...

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