Output Of Second Stage Of Exciter - Tait TM9100 Service Manual

If the output of the first stage of the exciter circuit is correct, check that of
Task 28 —
Output of Second
the second stage at C3509:
Stage of Exciter
1.
2.
3.
4.
5.
6.
TM9100 Service Manual
© Tait Electronics Limited August 2005
With the radio still in transmit mode, measure the RF voltage after
C3509 (see Figure 11.21
RF probe or the equivalent.) The required voltage should be as given
in Table 11.8 (B1 band),
If the voltage is correct, go to
Enter the CCTM command 32 to place the radio in receive mode.
Check the components around Q3502 (see
Figure 11.22).
Repair any fault revealed by the above checks. Replace Q3502
(see Figure 11.21 and Figure
components is faulty.
Confirm the removal of the fault and go to
page 147. If the repair failed, replace the main-board assembly and go
to "Final Tasks" on page
Transmitter Fault Finding (50W/40W Radios)
and Figure 11.22). (Use an RFP5401A
Table 11.9 (H5) or Table 11.10
Task 30. If it is not, go to
Figure 11.21
11.22) if none of the other
"Final Tasks" on
147.
(H7).
Step 3.
and
299