Gain Jumper Setup
Use the following figure and steps to set up the ADA-7801 jumper.
JP1
Gain Jumper
RV1
Gain
Pot
Figure 2. ADA-7801 User Control Locations
Set Jumper
JP1
to the desired gain range position as shown in the following table:
Table 1. Jumper settings
Gain Jumper Settings
+28 dB
+18 dB
+9 dB
0 dB (default)
Board Installation
Use the following steps to install the ADA-7801 cards in a RossGear audio distribution frame:
•
Refer to the User Manual of the RossGear frame, to ensure that the frame is properly
installed according to instructions. If this module is to be installed in any compatible
frame other than a Ross Video product, refer to the frame manufacturer’s manual for
specific instructions.
•
Please note that heat and power distribution requirements within a frame may dictate
specific slot placement of cards. Cards with many heat-producing components
should be arranged to avoid areas of excess heat build-up, particularly in frames
using convectional cooling.
•
After selecting the desired frame installation slot, hold the ADA-7801 card by the
edges and carefully align the card edges with the slots in the frame. Then fully insert
the card into the frame until the rear connection plug is properly seated.
Gain Potentiometer Setup
If necessary, use a tweaker screwdriver to adjust the
RV1
Gain potentiometer to the desired gain
range. See Figure 2, above, for pot location. The potentiometer provides a fine control of the gain and
has a range of +/- 6dB.
2-2
•
Installation and Setup
ADA-7801 User Manual (Iss. 08)
