Chapter 7: VEA-6840 Video Equalizing Amplifier Module | Operation |
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Operation
GAIN EQ RESPONSE
VEA-6840
R5 R6
GAIN EQ
RMV 
Submodule
VEA-6840
Figure 7-3. VEA-6840 and VEA-6840-RMV Card-Edge Views
Amulti-turn potentiometer Gain (R5) allows for adjustment to the gain over a range of ±3 dB. The gain is increased when this potentiometer is adjusted clockwise. Another multi-turn potentiometer EQ (R6) allows for adjustment to the equalization. It is adjusted clockwise to obtain more equalization.
Asingle-turn potentiometer Response (R21) allows for fine adjustment to the high-frequency response. It is factory-set/calibrated, and readjustment is not recommended without precise test equipment.
These three potentiometers are located at the front edge of the module.
62 | 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual |
