Tait TM8100 mobiles Service Manual page 498

Figure 19.1 Options extender board linking resistor locations
power supply line
19.1.1 Power Supply Line
19.1.2 RX_BEEP_IN Line
498 TMAA01-05 and TMAA01-07 Options Extender Boards
The power supply output available on pin 2 of the external options
connector is factory-set to 13.8V. The output on this pin can be changed to
5V if R11 (a 0Ω surface mount resistor) is moved to position R10.
Figure 19.1 at the top of the page shows the component locations.
Important
The maximum current for the 5V supply line is 400mA.
If the RX_BEEP_IN line is required on the external options connector,
it must replace one of the following lines:
IOP_RSSI
■
AUD_TAP_IN
■
AUX_MIC_AUD
■
AUD_TAP_OUT.
■
The following table explains the resistor link changes required and
Figure 19.1 at the top of the page shows the component locations.
Table 19.1 RX_BEEP_IN resistor changes
RX_BEEP_IN Line Replaces
IOP_RSSI
AUD_TAP_IN
AUX_MIC_AUD
AUD_TAP_OUT
RX_BEEP_IN line
Remove Resistor Add Resistor
R2
R4
R6
R8
TM8100/TM8200 Service Manual
© Tait Electronics Limited November 2007
R3
R5
R7
R9