Simoco EMEA Ltd SDB670AC01 Manual De Usuario
SDB670 – SERVICE MANUAL
TNM-M-E-0032
May 13
Page 44
MAINTENANCE
4.1. Disconnect the Tx RF cable from the BNC socket.
4.2. Disconnect the Tx Engine to Control Board cable from the RJ45 connector.
4.3. Release the four M4 hexagonal nuts that secure the Tx Assembly to the Tx Engine
Adjustment Chassis.
5.
The Tx Assembly can now be removed from the unit.
Note.
Care should be taken to support the Heat Pipe Assembly during assembly and
disassembly operations.
disassembly operations.
6.
To remove the heat pipe array from the Tx Assembly, remove the two M4 x 16 mm socket
cap head screws and the two M3 x 25 mm Pan Head screws that secure the array to the Tx
Assembly.
cap head screws and the two M3 x 25 mm Pan Head screws that secure the array to the Tx
Assembly.
Figure 11. Removal of Tx Assembly.
6.2.4
To Remove the Rx Assembly
1.
Remove the lid and open the SDB670 as detailed in Section 5.2.2.
2.
On the Fuse Board, disconnect the Rx Assembly power cable from socket ‘S2’.
3.
On the Rx Assembly, referring to Figure 12 overleaf, carry out the following:
3.1. Disconnect the Rx RF cable from the BNC socket.
3.2. Disconnect the Rx Engine to Control Board cable from the RJ45 connector.
3.3. Release the four M4 hexagonal nuts that secure the Rx Assembly to the chassis.
Tx RF Cable
(BNC)
Tx Engine to
Control Board Cable
(RJ45)
Heat Pipe
Array
Power Cable
(from socket S1
on Fuse Board)
M
4
N
u
ts
s
e
c
u
ri
n
g
T
x
A
s
s
e
m
b
ly