TB7100 Service Manual Disassembly and Reassembly 103
© Tait Electronics Limited October 2005
7.4 Replacing the Transmitter Module
Removal Note Release the latch underneath the DC power connector before
attempting to disconnect it.
1. Disconnect the cables to the RF
b, DC power c, system interface
d, and the user interface f connectors.
2. Use a Torx T10 screwdriver to remove the screw
h fastening the
temperature sensor to the heatsink.
3. Use a Torx T10 screwdriver to remove the four screws
g fastening
the heatsink to the tray chassis.
4. Lift the transmitter module clear of the tray chassis.
Fitting Note Although the transmitter and receiver modules look alike, a
transmitter module can not replace a receiver module. There is no
heat transfer plate on the receiver. Check that the replacement
module has links, LK2, LK3 and LK4 not fitted as shown below.
1. Position the transmitter module inside the tray chassis.
2. Use a Torx T10 torque-driver to fasten the four screws
g to 4.5lbf·in
(0.5N·m).
3. Use a Torx T10 torque-driver to fasten the temperature sensor with
the screw
h to 4.5lbf·in (0.5N·m).
4. Connect the cables to the RF
b, DC power c, system interface d,
and the user interface
f connectors.
Figure 7.4 Replacing the transmitter module
g
f
b
c
d
g
e
Check that links LK2, LK3 and
LK4 are not fitted.
g
g
g
h
Torx T10
4.5lb·in
Torx T10
4.5lb·in
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