5-12 888-2406-002
WARNING: Disconnect primary power prior to servicing.
Maintenance and Alignment
Figure 5-5 Forward Power CAL Screen
[HOME,MORE,CONFIGURATION C,C]
STEP 11 Set the Transmitter LCD meter (the right-hand display) to read FWD
PWR in kW.
STEP 12 Calibrating - Verify once more that the FWD POWER CAL screen
and the external power meter agree. If necessary, re-adjust R127 on
the Life Support Board to make the external meter read exactly 2kW
or your TPO. Press and hold the [D] key at the bottom right of the
display and then press the [BACK] key to the left of the display
to calibrate the FWD power and save the new information. The
display will flash “Calibration Done” very quickly at the bottom of
the Diagnostics Display. The external meter and the FWD PWR
reading on the transmitter should now agree.
STEP 13 Return to the 100% TPO SET screen [HOME, MORE,
CONFIGURATION B,A] and change the level to match your TPO.
Press [BACK] to save the changes. The FWD PWR meter should
read 100% (or your TPO in kW depending on the setting).
STEP 14 Set the MAX HIGH back to the setting noted in Step 3 or to set a
new MAX HIGH go to “Setting Maximum Power Limits” earlier in
this section.
STEP 15 It is recommended that the following “Cal Values” be noted for
future reference since they may have changed from those noted on
the factory test data sheet: [HOME,MORE,CONFIGURATION
C,A]
a. FORWARD FACTOR
b. IPA FACTOR
c. EXC FACTOR
d. CAL FREQUENCY
e. CAL APC FACTOR
Forward power calibration is now complete.
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