Sc600 Hardware Adjustments; Equipment Required; Adjusting The Leveled Sine Wave Function; Equipment Setup - Fluke 5520A Service Manual

Set the Calibrator Mainframe to SCOPE mode, with the Overload menu on the display.
Connect the BNC cable to the Calibrator Mainframe SCOPE connector. Then follow
these steps to verify the overload function.
1. Connect the 50
2. Program the Calibrator Mainframe output for 5.000 V, DC (OUT VAL blue softkey),
and time limit = 60 s (T LIMIT blue softkey).
3. Press
OPR display timer increments.
4. Remove the 50
Calibrator Mainframe goes to STBY.
5. Reconnect the 50
6. Program the Calibrator Mainframe output for 5.000 V, ac (OUT VAL blue softkey).
7. Press
OPR display timer increments.
8. Remove the 50
Calibrator Mainframe goes to STBY.

6-74. SC600 Hardware Adjustments

Hardware adjustments must be made to the leveled sine and edge functions each time the
SC600 is repaired. In addition to the adjustment procedures, this section provides lists of
the required equipment and some recommendations on models that have the capabilities
required by these procedures. Equivalent models can be substituted if necessary.

6-75. Equipment Required

The following equipment is necessary for performing the hardware adjustments described
in this section. The models listed are recommended for providing accurate results.
Standard adjustment tool for adjusting the pots and trimmer caps
Extender Card
Oscilloscope Mainframe and Sampling Head (Tektronix 11801 with SD-22/26 or
Tektronix TDS 820 with 8 GHz bandwidth)
10 dB Attenuator (Weinschel 9-10 (SMA), or Weinschel 18W-10, or equivalent)
Cable provided with SC600
Spectrum Analyzer (Hewlett-Packard 8590A)

6-76. Adjusting the Leveled Sine Wave Function

There are two adjustment procedures that need to be made for the leveled sine wave
function. The first procedure adjusts the balance out of the LO VCO so that the signal is
balanced between the two VCOs. The second procedure adjusts the harmonics.

6-77. Equipment Setup

This procedure uses the spectrum analyzer. Before you begin this procedure, verify that
the Calibrator Mainframe is in leveled sine wave mode (the Levsine menu is displayed),
and program it to output 5.5 V p-p @ 600 MHz. Press
feedthrough termination to the end of the BNC cable.
on the Calibrator Mainframe to activate the output and verify that the
feedthrough termination before 60 seconds and verify that
feedthrough termination to the end of the BNC cable.
on the Calibrator Mainframe to activate the output and verify that the
feedthrough termination before 60 seconds and verify that
SC600 Option

SC600 Hardware Adjustments

to activate the output.
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