TM8100 Mobile Radio Service Manual General Description 39
May 2004 © Tait Electronics Limited
Speaker and
Microphones
A speaker is always fitted, although in certain installations it is not used
and therefore not connected to the control-head board. (The
connecting wires are not shown in the figures.) A cloth membrane for
the speaker is fixed to the speaker grille on the inside of the front panel.
Figure 2.5 also shows the two parts of a concealed microphone — the
microphone capsule and a rubber seal. These are fitted in a recess in the
front panel next to the speaker. The leads from the capsule are soldered
to pads on the control-head board. Before the microphone is fitted a
small hole is drilled in the recess to provide an acoustic path to the
microphone. The hole is covered by the rubber seal to ensure that the
control head remains sealed to IP54 standards. The concealed
microphone is an optional accessory like the dynamic microphone; both
are described in the accessories manual.
Table 2.1 Parts of the control heads with UI
Index Reference IPN Description Quantity
1 Figure 2.3 316-06786-xx Front panel 1
2 Figure 2.3 311-01054-xx Knob for volume-control potentiometer 1
3 Figure 2.3 312-01095-xx Lens with Tait logo (two-digit display) 1
312-01106-xx Lens with Tait logo (one-digit display)
4 Figure 2.3 365-01717-xx Label for TM8115 1
365-01745-xx Label for TM8110
5 Figure 2.4 219-02882-xx Control-head loom 1
6 Figure 2.4 240-00021-41 Female-female adaptor for control-head connector 1
7 Figure 2.4 346-10030-08 3 x 8 PT screw for control-head board 3
8 Figure 2.4 XMAC20 Control-head board (two-digit display) 1
XMAC50 Control-head board (one-digit display)
9 Figure 2.4 209-00011-xx Elastomeric strip 2
10 Figure 2.4 319-30073-xx Space-frame 1
11 Figure 2.5 252-00011-xx Speaker 1
12 Figure 2.5 307-01024-xx Speaker membrane 1
13 Figure 2.5 311-03114-xx Keypad 1
14 Figure 2.5 262-00003-xx Short light pipe 2
15 Figure 2.5 262-00004-xx Long light pipe 2
16 Figure 2.5 008-00031-xx LCD 1
Note
The characters xx in an IPN (internal part number) stand for the issue number. Items in the control head will
always be the latest issue at the time the control head is manufactured.
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