Nokia 7000 Series, 6800 Series operation manual VPD-6830-CLP, Configuration

Chapter 8: VPD-6830 Programmable Video DA Series VPD-6830-CLP

VPD-6830-CLP

Configuration

1.Set the input coupling for either AC or DC coupling using jumpers J2 and J3. See Figure 8-3 on page 71 for jumper locations.

2.Set the Clamping mode on jumper J1 to either Soft, Hard or No Clamp. See Figure 8-3 on page 71 for jumper location.

3.Adjust the gain over a range of -3 dB to +3 dB using the R5 multi-turn potentiometer in the base module.

Turn the potentiometer Clockwise to Increase the gain. See Figure 8-4 on page 71.

4.Adjust the equalization using the R6 multi-turn potentiometer in the base module.

Turn the potentiometer clockwise to obtain more equalization. See Figure 8-4 on page 71.

5.Make fine adjustments to the high-frequency response using the R21 Single-Turn potentiometer in the base module.

The high-frequency response is factory-set/calibrated. Readjustment is not recommended without precise test equipment. See Figure 8-4 on page 71.

6.Adjust the Hard clip level using the R4 multi-turn potentiometer located on the VPD-6830-CLP submodule. See Figure 8-3

“VPD-6830-CLP Configuration” on page 71.

7.Adjust the Luminance clip using the R13 multi-turn potentiometer located on the card edge of the submodule card. See Figure 8-4“VPD-6830-CLP Card-Edge View” on page 71.

70 6800/7000 Series - Distribution and Routing Products Installation and Operation Manual