KRAMER ELECTRONICS, Ltd. USER MANUAL Distribution Amplifiers Models: VM-1010, VM-1015, VM-1021, VM-1042, VM-1044, VM-1055, VM-54 IMPORTANT: Before proceeding, please read paragraph entitled "Unpacking and Contents" KRAMER ELECTRONICS LTD.
Table of Contents Section Name 1 1.1 1.2 2 3 4 4.1 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 6 6.1 7 8 8.1 8.2 8.3 8.4 8.5 8.6 8.7 9 10 10.1 10.
INTRODUCTION Congratulations on your purchase of this Kramer Electronics amplifier. Since 1981 Kramer has been dedicated to the development and manufacture of high quality video/audio equipment. The Kramer industrial line has become an integral part of many of the best production and presentation facilities around the world. In recent years, Kramer has redesigned and upgraded most of the industrial line, making the best even better.
Factors Affecting Quality of Results There are many factors affecting the quality of results when signals are transmitted from a source to an acceptor: Connection cables - Low quality cables are susceptible to interference, they degrade signal quality due to poor matching and cause elevated noise levels. They should therefore be of the best quality. Sockets and connectors of the sources and acceptors - So often ignored, they should be of highest quality, since "Zero " connection resistance is the target.
SPECIFICATIONS VM-1010 VM-1015 VM-1021 VM-1042 VM-1044 VM-1055 VM-54 Configuration 2X CV 1X CV 1X CV 4XCV/RGB 4XCV/RGB 5XCV/ RGB HSVS 1X CV, 3comp Input Type CV CV CV CV/RGB CV/RGB CV/RGB HSVS CV/Comp Input Connections BNC BNC BNC BNC BNC BNC BNC Input Level 1Vpp/75 looping 1Vpp/75 looping 1Vpp/75 looping 1Vpp/75 looping 1Vpp/75 1Vpp/75 1Vpp/75 looping Output Type 1X10 or 2X5 5XCV CV 3Vpp Max.
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. At the beginning of each section, you’ll find an overview of the section. So if the section doesn’t apply to you, you don’t have to spend your time reading it. UNPACKING AND CONTENTS The items contained in your Kramer VM Amplifier packaging are listed below.
VIDEO TESTER - A new, unique, patented, indispensable tool for the video professional, the Video Tester is used to test a video path leading to/from an amplifier. By pressing only one touch switch it can trace missing signals, distinguish between good and jittery (VCR sourced) signals, and identify the presence of good signals. Whenever a video signal is missing, because of bad connections, cable breaks or faulty sources, the Video Tester is all you need.
Table 2: VM-1010 Rear Panel Features No. Feature Function 1. OUT 1A -5A BNC connectors 5 amplified and buffered video outputs. 2. INPUT A BNC connector Video input. 3. 75 Selects "75 " or "HI-z" impedance (for looping select "Hiz"). 4. DC pushbutton Selects DC coupling when pushed. 5. LOOP BNC connector Provides video looping capability to increase number of outputs. 6. INPUT B BNC connector Video input. 7. 75 Selects "75 " or "HI-z" impedance (for looping select Hiz). 8.
Table 3: VM-1015 Front Panel Features No. Feature 1. Power Switch Illuminated switch: Supplies power to the unit. 2. EQ trimmer (ADJUST) Controls cable equalization of the video outputs. 3. LEVEL trimmer (ADJUST) Controls video level of the video outputs. 4. DC (COUPLING) switch Selects DC coupling when pushed. 5. AC (COUPLING) switch Selects AC coupling when pushed. 6. BLACK (CLAMP) switch Clamps video signal to the black level when pressed (best used for Composite or Component video).
Figure 3: VM-1021 Front/Rear Panel Features Table 5: VM-1021 Front Panel Features No. Feature 1. Power Switch Illuminated switch: Supplies power to the unit. 2. EQ trimmer (SET 4 ADJUST) Controls cable equalization of SET 4 video outputs. 3. LEVEL trimmer (SET 4 ADJUST) Controls level of SET 4 video outputs. 4. EQ trimmer (SET 3 ADJUST) Controls cable equalization of SET 3 video outputs. 5. LEVEL trimmer (SET 3 ADJUST) Controls level of SET 3 video outputs. 6.
Getting To Know Your VM-1042 Amplifier The KRAMER VM-1042 is a full broadcast, looping Video Component Distributor designed for studio and other demanding applications. VM-1042 splits each input of a four-component source into two identical outputs with no discernible signal degradation. Input and output DC coupling and state-of-the-art video amplifying circuitry make the KRAMER VM-1042 the first choice Video Component Distributor.
Getting To Know Your VM-1044 Amplifier The KRAMER VM-1044 is a full broadcast, Video Component Distributor designed for studio and other demanding applications. The VM-1044 splits a four-component input source into four identical outputs, with no discernible signal degradation. Input and output DC coupling and state-of-the-art video amplifying circuitry make the KRAMER VM-1044 the first choice Video Component Distributor.
Figure 6: VM-1055 Front/Rear Panel Features Table 9: VM-1055 Front/Rear Panel Features No. Feature 1. Power switch Illuminated switch: Supplies power to the unit. 2. 75 Selects “ 75 “ or “ HI-z” impedance for Hs Channel. When at the "75 " position, the signal applied to the connector should be analog video or sync signal. When in the “ HI-z” position a TTL level sync signal may be used. 3. IN Hs BNC connector Hs Channel video input (horizontal sync). 4.
Getting To Know Your VM-54 Amplifier The KRAMER VM-54 is a high quality, state-of-the-art, Video/Component Distribution Amplifier designed for studio and other demanding applications. The VM-54 has three looping input channels each with 18 outputs. With this configuration a 1:18 RGB distributor can be formed. Each channel is subdivided into four groups of five or three outputs, which may be tuned separately for gain and cable EQ.
No. Feature Function 6. GAIN trimmers (OUTPUTS 6-10, Channels 1-3) Controls video levels of outputs 6-10 in Channels 1-3. 7. EQ trimmers (OUTPUTS 1-5, Channels 1-3) Controls cable equalization of video outputs 1-5 in Channels 1-3. 8. GAIN trimmers (OUTPUTS 1-5, Channels 1-3) Controls video levels of outputs 1-5 in Channels 1-3. 9. AC/DC switches (Channels 1-3) Selects AC/DC coupling for Channels 1-3 (DC coupling when pressed). 10.
INSTALLATION Rack Mounting KRAMER ELECTRONICS LTD.
CONNECTING TO VIDEO DEVICES Video sources and output devices (such as monitors, projectors or recorders) may be connected to the amplifiers through the BNC type connectors located on the back of the units. Unused inputs are terminated to 75 , and active inputs should be terminated at the connecting source. Please keep in mind that the output signal format will match that of the input signal format. (Example: If input is composite, then output is composite.
line (of 75 impedance) from first to last amplifier. Note that if looping function is not used, the termination switch should be set to "75 ". Level Control (VM-1010, VM-1015, VM-1021, VM-54 only) Level Control function enables the operator to control video signal level or compensate for distortions such as those caused by cables that are too long. Using a non-standard, or an uncalibrated video source also affects the incoming signal.
WARNING! 1. The amplifier was calibrated at the factory for transparent operation at 1 meter. Any re-tuning will upset amplifier’s transparency. 2. Do not attempt to adjust the Equalization trimmers without using accompanying standard calibrated oscilloscope or waveform monitor! Coupling The coupling function enables the operator to determine whether the incoming video signal is DC or AC coupled.
TROUBLESHOOTING NOTES 1. Please note that if the output signal is disturbed or interrupted by very strong external electromagnetic interference, it should return and stabilize when such interference ends. If not, turn the power switch off and on again to reset the machine. 2. If the recommended actions still do not result in satisfactory operation, please consult your KRAMER Dealer. Power and Indicators Problem Remedy No Power 1.
Problem Remedy Noise bars "roll" up or down in the output image Hum bars (ground loop) are caused by a difference in the ground potential of any two or more devices connected to your signal path. This voltage difference passes through any available interconnection, including your video cables. or: WARNING! Low frequency hum in the output signal Do not disconnect the ground from any piece of video equipment in your signal path! Check the following to remove hum bars: 1.
For the latest information on our products and a list of Kramer distributors, visit our Web site: www.kramerelectronics.com where updates to this user manual may be found. We welcome your questions, comments and feedback. Kramer Electronics, Ltd. Web site: www.kramerelectronics.com E-mail: info@kramerel.
