© 2020 Kymeta Corporation. All rights reserved.
15
10 April 2020
700-00064 revA Kymeta™ u7 terminal user manual — TRM-U7H and TRM-U7X configurations
9.2
Replace the LNB
1.
Disconnect the
RX in cable
from the LNB.
2.
Disconnect the
LNB
from the diplexer by removing the four socket head cap screws and the O-ring. Locate and
save the black O-ring between the LNB and diplexer.
Tools:
M3 ball-head Allen driver.
3.
Insert the provided orange O-ring into the provided WR-75 spacer groove and place it on the diplexer with the
O-ring facing the diplexer.
4.
Replace the original black O-ring in the groove on the WR-75 side of the LNB.
5.
Connect the LNB to the diplexer with four M4 × 16 mm socket head cap screws, four metal bonded rubber
washers, and apply a small amount of Loctite to the thread of each M4 x 16 mm socket head cap screw. Ensure
the screws are aligned.
Tools:
Torque screwdriver with 0.2 N-m (2 in.-lb.) minimum rating, hex bit, M3 ball head with 3 in. (minimum)
extension
Hardware:
(4) SHCS, M4 x 6, O-ring
Torque:
1.47 N- m (13 in.-lb.)
6.
Connect the
RX in cable
to the LNB.
⚠
Ensure the LNB film stays on. The film keeps dust from entering the LNB and does not reduce gain.
⚠
Do not cross thread or overtighten the screws.
