Troubleshooting - Hall Research Technologies UV4-S User Manual

Model UV4-S and UV8-S
3.1 Receiver Video Adjustment (High Frequency Compensation)
Apply a video source to the system and check the image at each receiver's display.
Set the compensation potentiometer (pot) on the Model UV1-R receiver for best
possible image.
Start with the compensation pot fully CCW (least compensation), slowly turn it
clockwise and check for bleeding of left to right horizontal lines on the screen. See
Figure 3 below.
Figure 3 - Typical test patterns used for adjusting compensation

4. Troubleshooting

There are no field serviceable parts or circuits in the device.
Opening the unit will void the warranty.
If you think the device is malfunctioning (or you have no picture output), please try to
use the methods described in Section 4.3 below to obtain a picture first.
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