TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding 243
© Tait Electronics Limited November 2007
6. Resolder R527 in its original position as shown in Figure 9.18.
7. Replace all cans.
8. Use the oscilloscope probe to check the difference frequency at the
TP502 test point (see Figure 9.18). The signal is SYN CDC FCL and
should be:
9. If the signal is correct, the fault has been removed; go to “Final
Tasks” on page 163. If the signal is not correct, the repair failed;
replace the board and go to “Final Tasks” on page 163.
TP502 test point: sine wave of 1.1 ± 0.2V
pp
on 1.5 ± 0.1V DC
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