Check Temperature Sensor - Tait TM9100 Service Manual

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
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 11.9
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 (50W/40W Radios)
Task 12
269. If it is not, go to
can.
PAF TOP
(H5 and H7 bands).
"CODEC and Audio Fault Finding" on
147. If the repair failed, replace
"Final Tasks" on page
test
D TX INH
in "Biasing of
Step 3.
Figure 11.8
147.
263