Kramer Electronics 103YC - Manual (Page 7)

Kramer Electronics, Ltd.
5
5.2 Getting to Know Your VM-9YC Amplifier
The KRAMER VM-9YC Y/C Line amplifier is a high quality amplifier which compensates for Y (Luma) and C
(Chroma) signal losses when long cables are used. In any video setup requiring considerable distances between
video source and acceptors, signal loss and thus depreciation in the quality of picture-becomes a real problem.
The VM-9YC allows the user to compensate for cable losses by changing the level of the Y signal and its
frequency response, as well as and the level of the C signal and its phase. The machine has a looping input with
termination switch and two outputs, thus serving as a cascadable 1:2 distribution amplifier. Signal bandwidth of
well over 320MHz makes the VM-9YC suitable for the most demanding applications. It is housed in a half 19"
enclosure; so two machines of that size may be installed together side by side occupying only 1U in a 19” rack.
Front/Rear panel features of the VM-9YC are described in Figure 2 and Table 2.
NOTE
For operation instructions refer to section 9.
Figure 2: VM-9YC Front/Rear Panel Features
Table 2: VM-9YC Front/Rear Panel Features
No. Feature Function
1. Illuminated POWER Switch Supplies power to the unit.
2. C GAIN knob Controls C (Chroma) level of the outputs.
3. C PHASE knob Controls the phase of the C (Chroma) output signal.
4. Y EQ. knob Controls cable equalization of the " Y" outputs.
5. Y GAIN knob Controls (Luma) level of the " Y" output.
6. INPUT 4P connector s-Video input (YC)
7. TERM pushbutton Selects " 75ohm" or "Hi-Z" impedance (for looping select Hi-Z).
8. LOOP 4P connector Provides video looping capability to increase number of outputs.
9. OUT 1 4P connector Y/C amplified and buffered video output.
10. OUT 2 Y BNC connector Amplified and buffered Y video output.
11. OUT 2 C BNC connector Amplified and buffered C video output.
12. Power Connector A 3-prong AC connector allows power to be supplied to the unit.
Directly underneath this connector, a fuse holder houses the
appropriate fuse.