Tait TM9100 Service Manual page 329

12.
If the transmitter is being inhibited and the logic signal at the
Task 8 —
Check Temperature
point is active, a fault in the temperature sensor might be the cause.
Sensor
1.
2.
3.
4.
5.
TM9100 Service Manual
© Tait Electronics Limited August 2005
Repair any fault, confirm the removal of the fault, and go to
Tasks" on page 147. If the repair failed or no fault could be found,
replace the main-board assembly and go to
page 147.
Enter the CCTM command 47 to check the temperature reading.
Of the two numbers returned, the first is the temperature in degrees
celsius and should be about 25°C. If it is, go to
PA Driver and PAs" on page
If not already done, remove the
Check D301 and the surrounding components — see
(B1 band) and Figure 12.7
If there is no fault, go to
page 371. If a fault is found, repair it, confirm the removal of the
fault, and go to "Final Tasks" on page
the main-board assembly and go to
Transmitter Fault Finding (25W Radios)
"Final Tasks" on
Task 12
335. If it is not, go to
can.
PAF TOP
(H5 and H6 bands).
"CODEC and Audio Fault Finding" on
147. If the repair failed, replace
"Final Tasks" on page
"Final
test
D TX INH
in "Biasing of
Step 3.
Figure 12.6
147.
329