Tait TM8100 mobiles, Service Manual

Page: 474 / 620

474 TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual
© Tait Electronics Limited November 2007
17.3.2 Installation Procedure
1. Disassemble the radio in order to gain access to the options cavity.
For detailed disassembly instructions, refer to “Disassembly and
Reassembly” on page 135 .
The circled numbers in the following instructions refer to items in the
diagram
on page 475 .
2. Remove the top cover and lid
b
from the radio to access the
options cavity.
3. Remove the external options connector bung
c
, if it is fitted.
4. On the inside of the radio lid place the foam seal
d
over the external
options connector cavity
e
.
5. With the top side of the line-interface board
f
facing the radio lid,
guide the external options connector
g
into the external options
connector cavity.
6. Screw the external options connector to the radio lid using the two
screw-lock fasteners
h
.
Tighten the fasteners to a torque of 0.9N·m (8lbf·in).
Important
The external options connector screw-lock fasteners must
be tightened correctly before screwing the line-interface
board onto the mounting posts
i
.
7. Screw the line-interface board to the mounting posts on the radio lid
using six M3x8 self-tapping screws
j
.
Tighten the M3x8 screws to a torque of 1.9N·m (17lbf·in)
Important
For the line-interface board to be installed correctly in the
radio’s options cavity, the internal options connector
loom
1)
must be looped in the way shown in the diagram
on page 475 .
8. Plug the unattached end of internal options connector loom
1)
into
the internal options connector on the radio main PCB.
9. Refit the radio lid and top cover to the radio and screw the external
options cover seal
1!
over the external options connector, using the
two 4-40x3/16 screws
1@
.