User Manual
KRAMER ELECTRONICS LTD.
  4
3.  HOW DO I GET STARTED? 
The fastest way to get started is to take your time and do everything right the first time. Taking 15 minutes to 
read the manual may save you a few hours later. You don’t even have to read the whole manual. If the section 
doesn’t apply to you, you don’t have to spend your time reading it. 
4.  UNPACKING AND CONTENTS 
The items contained in your Kramer VM amplifier package are listed below. Please save the original box and 
packaging materials for possible future shipment of the amplifier. 
 The amplifier 
 AC power cable (where applicable) 
 User Manual 
 Rubber feet 
For additional information regarding optional cables and additional accessories, contact your Kramer dealer. 
4.1 
Optional Accessories 
The following Kramer accessories can enhance implementation of your amplifier. 
 Rack Adapter - Used to install small machines in a standard 1U rack. One or more machines may be 
installed in each adapter.  
 BNC  "Y"  Connector  -  Splits  the  incoming  signal  for  looping  purposes  to  enable  connection  of  an 
additional machine.  
 SP-40  -  (video/audio  Processor)  Serially  connected  between  the  video/audio  source  and  the  VM 
amplifier for video and audio processing. The machine is a high quality processor used for video control 
and correction  in duplication and  production  studios,  camera  control, luminance and  white  balance 
correction. The SP-40 is capable of  Composite to  Y/C conversion and bi-directional Transcoding. The 
machine allows video gain control down to full fade, definition control, contrast control, color saturation 
control, black level control, audio mix control for mixing between the selected source and an audio AUX 
source, and a screen splitter control for “before-after” comparison. The unique limiter switch in the SP-
40 allows true signal limiting and special effects. 
 SP-11 - (video/audio Processor) can be serially connected between the video/audio source and the VM 
amplifier  for  video  and  audio  control/correction.  The  machine  provides  camera  control  and 
luminance/white  balance  correction.  The  SP-11  is  also  capable  of  performing  composite  to  Y/C 
conversion and bi-directional transcoding. The machine allows full control over the video signal: video 
gain  down  to  full  fade,  log  or  linear  definition  control,  log  or  linear  contrast  control,  color  saturation 
control, black level control, red, green and blue controls and a screen splitter control for “before-after” 
comparison. The Input switch control is "audio-follow-video". 
 104L - (video Line Amplifier) Serially connected between the video source and the VM amplifier, the 
machine is used for  video line amplification and cable compensation, video field work and SDI signal 
distribution. Signal loss and the resulting depreciation in picture quality is a real problem in any video 
setup requiring considerable distance  between video source  and acceptors. The KRAMER  104L video 
Line Amplifier, one of the KRAMER TOOLS, is a high quality amplifier, which prevents video signal 
losses over long cables. For best results the 104L amplifier is installed adjacent to the video source. The 
104L  is  housed  in  the  compact  KRAMER  TOOLS  enclosure  and  is  fed  by  a  12VDC  source.  High 
bandwidth and front accessible controls make it suitable for the most demanding analog and SDI studio 
applications. 
 VM-9YC - (video/audio Line Amplifier) Serially connected between the video/audio source and the VM 
amplifier, the machine is a high quality video/stereo amplifier which compensates for video and  audio 
signal losses when  long cables  are  used. In  any video/audio  setup requiring  considerable  distances 
between video/audio source and acceptors, signal loss and thus depreciation in the quality of both picture 
and sound is a real problem. To prevent this phenomenon, a VM-9S amplifier is installed adjacent to the 
video/audio source. 










