TM8100/TM8200 Service Manual
Disassembly and Reassembly
145
© Tait Electronics Limited
November 2007
Fitting the Main-
Board Assembly to
the Chassis
The circled numbers in this section refer to the items in
Figure 5.3 on
page 139
. This figure shows the >25W configuration.
1.
With the >25W radio, the L-shaped gap pad
1)
must be replaced
each time the main-board assembly
F
is removed from the chassis
G
:
■
Remove any residue of the old gap pad from the audio-PA area on
the underside of the main board (refer to
Figure 5.6 on page 143
)
and the L-shaped ridge of the chassis (refer to
Figure 5.3 on
page 139
).
■
Peel off the transparent film on one side of the gap pad and evenly
press the gap pad on the L-shaped ridge of the chassis.
■
Peel off the transparent film on other of the gap pad.
2.
If the thermal paste on the heat-transfer block or the underside of the
main board has been contaminated, new thermal paste must be
applied:
■
Remove any residue of the old thermal paste from both contact
surfaces.
■
Use Dow Corning 340 silicone heat-sink compound
(IPN 937-00000-55).
Important
Ensure that no bristles from the brush come loose and
remain embedded in the paste. The paste needs to be
completely free of contaminants.
■
Use a stiff brush to apply 0.1cm
3
of thermal paste on the heat-
transfer block (refer to
Figure 5.3 on page 139
).
■
Use a stiff brush to apply 0.01cm
3
of thermal paste on the
audio-PA heat sink of the chassis (refer to
Figure 5.3 on page 139
)
3.
Place the main-board assembly
F
in position in the chassis
G
.
4.
Loosely screw in the two screws
I
through the heat-transfer block by
hand.
>25W
Summary of Contents for TM8100 mobiles
Page 1: ...TM8100 mobiles TM8200 mobiles Service Manual MMA 00005 05 Issue 5 November 2007...
Page 10: ...10 TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...
Page 12: ...12 TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...
Page 20: ...20 Introduction TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...
Page 64: ...64 Description TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...
Page 106: ...106 TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...
Page 134: ...134 General Information TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...
Page 168: ...168 Servicing Procedures TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...
Page 464: ...464 Spare Parts TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...