Tait TM9100 Service Manual page 351

13.
In this task any faults in the path between the power-control circuit and the
Task 23 —
Power Control
PA driver will be located, as well as any fault with the PA driver.
for PA Driver
1.
2.
3.
TM9100 Service Manual
© Tait Electronics Limited August 2005
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
Check for short circuits at the gate of the PA driver Q306. Check
R333, R336 (see Figure
(see Figure 12.11) between the power-control circuit and Q306.
Repair any fault revealed by the checks in
above-mentioned components is faulty, replace Q306
(see Figure 12.11).
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 (25W Radios)
"Final Tasks" on
147.
12.9), C310, R324 and R327
Step 1. If none of the
"Final Tasks" on
147.
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