Fluke 6060B - Synthesizer Assembly Adjustments

MAINTENANCE
CALIBRATION ADJUSTMENTS
f.
Replace
the RF Level Adjustment access screw.
6.
HET
Level Adjustment
TEST EQUIPMENT
Power Meter and Sensor
REMARKS
The
UUT
must be operated at room temperature for at least one hour with the module
plate
covers
in place before continuing with this adjustment procedure.
This
adjustment is normally
required only when components in the het
band circuits have
been
replaced or when the
adjustment has been changed
or has shifted.
CAUTION
This adjustment directly affects the output level and should not be adjusted
indiscriminately.
PROCEDURE
With the UUT programmed to +9 dBm, adjust the Het Level Adjustment, R227, for
equal output power at 100 MHz and
350
MHz.
a.
Program the UUT
to[RCL][9][8], then program the UUT to
350
MHz and
+9
dBm.
b. Zero the Power Meter.
c. Remove the het level adjustment access screw from the bottom module plate
d.
Connect
the Power Sensor to the UUT RF OUTPUT connector. Note
the
Power Meter reading.
e. Program the UUT to 100 MHz.
f. Adjust Het Level Adjustment, R227, for a reading equal to that previously
noted.
g.
Replace the HET level adjustment access screw.
4C-6.
SYNTHESIZER ASSEMBLY, A2A1 ADJUSTMENT
The following are the routine adjustments for the Synthesizer assembly, A2A1
1. R230 10-MHz Adjustment
2. R82 FM Cal Adjustment
R90 Low-Rate Deviation Adjustment
R87
FM Flatness Adjustment
4C-10