TM8100 Mobile Radio Service Manual Disassembly and Re-assembly of Radio 137
May 2004 © Tait Electronics Limited
6.3 Disassembly of Radio Body
Introduction This subsection covers the disassembly of the radio body. There are three
stages in the disassembly procedure:
■ open radio body
■ remove main-board assembly
■ disassemble main-board assembly
The control head need not be detached before the radio body is opened,
but it must be detached before the main-board assembly can be removed.
Remove the main-board assembly only if it requires repair or
replacement. Disassemble the main-board assembly only if a connector
on the board requires replacement.
Open Radio Body The first stage in disassembling the radio body is to remove the cover and
lid. In the process it is advisable to inspect and, if necessary, replace the
main seal in the lid. The procedure is included in the disassembly
instructions:
1. Note the two screw bosses on each side of the chassis. The cover
clips to the underside of each upper boss. Also note the two points
where the cover should be levered off the radio body. As shown
in Figure 6.5, each lever point is a slot above the lower screw boss.
2. Insert the blade of a small (about 3 mm) flat-bladed screwdriver in
each of the above slots in turn. In each case push the screwdriver
under the cover towards the upper screw boss. This will release
the cover from the upper boss. Remove the cover.
3. Use a Torx T20 screwdriver to remove the four screws securing
the lid of the radio body. The screws are shown in Figure 6.6.
4. Carefully remove the lid. If an options board is fitted, there will
be an options loom connecting the main board in the chassis and
the options board in the lid. If this is the case, place the lid next
to the chassis as shown in Figure 6.7 and disconnect the loom.
5. Inspect the main seal in the lid for any sign of deformation, cuts
or tears. Refer to Figure 6.7. If the seal is damaged, replace it
with a spare seal from Spares kit 2. The contents of the kit are
listed in Table 6.2. The IPN of each spare part is given but, if
applicable, not
the issue number within the IPN. The latest issue
of a particular part is always supplied.
6. Continue with the servicing procedure detailed in Subsection 5.2
(on page 109).
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