132
Disassembly and Reassembly
TM8100/TM8200 Service Manual
© Tait Electronics Limited
June 2006
Opening the
Radio Body
The circled numbers in this section refer to the items in
1.
Use a Torx T20 screwdriver to remove the four screws
c
.
Important
If an options board is fitted inside the lid, an options loom
will connect the options board to the internal options con-
nector on the main board. In this case, carefully fold over
the lid and disconnect the loom.
2.
Carefully remove the lid assembly
d
.
3.
Inspect the main seal in the lid for damage, and replace if necessary.
Removing the
Main-Board
Assembly
The circled numbers in this section refer to the items in
1.
Remove the auxiliary connector bung
h
(if fitted).
2.
Remove the RF connector seal
j
using one of the tabs located at the
bottom of the seal—preferably by hand. If necessary, lift up the tap
using the blade of a small flat-bladed screwdriver. Do not damage the
seal with the screwdriver.
3.
Use a Torx T10 screwdriver to remove the screws
e
connecting the
main board to the chassis.
4.
Use a Torx T20 screwdriver to remove the screws
i
connecting the
heat-transfer block to the rear of the chassis.
Note
Make sure not to touch the thermal paste on the chassis, the heat-
transfer block, and the underside of the main board. If the thermal
paste is contaminated, you must re-apply thermal paste as
described in
“Fitting the Main-Board Assembly to the Chassis” on
5.
Holding a hand over the chassis to catch the main-board assembly,
turn the chassis upside down and tap its fins on the edge of the
workbench. This will release the heat-transfer block from the chassis.
6.
With the 40W/50W radio, the gap pad
1)
on the L-shaped ridge
must be replaced each time the main board is removed.
Summary of Contents for TM8235
Page 1: ...TM8100 mobiles TM8200 mobiles Service Manual MMA 00005 04 Issue 4 June 2006...
Page 10: ...10 TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 62: ...62 Description TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 148: ...148 Disassembly and Reassembly TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 162: ...162 Servicing Procedures TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 178: ...178 Interface Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 258: ...258 Receiver Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 446: ...446 Spare Parts TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...