HP 8562E Service Manual page 104

17. 16 MHz PLL Adjustment
1. Press m to turn the spectrum analyzer off. Remove the spectrum analyzer cover and
fold out the A2 controller and A3 interface assemblies. Use a pc board prop to hold up
the A3 interface assembly, as shown in Figure 2-26.
2. Connect the equipment as shown if Figure 2-26. The ground lead of the 1O:l probe
connects to A2TP10, and the probe tip connects to A2TPlOl.
3. The 16 MHz PLL adjustment location is shown in Figure 2-27.
4. Press luNE) to turn the spectrum analyzer on. Wait until the spectrum analyzer power-on
adjustments have completed.
5. Set the microwave frequency counter as follows:
Sample rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fully counterclockwise
10 Hz-500 MHz/500 MHz-26.5 GHz switch . . . . . . . . . . . . . . 10 Hz-500 MHz
50 R/l MO switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .l MR
7. Disconnect W22 (10 MHz frequency counter) from A2J8. The display will probably
appear distorted and error messages may appear. Ignore the error messages.
2-64 Adjustment Procedures
Figure 2-27. 16 MHz PLL Adjustment Location
A2 CONTROLLER ASSEMBLY
, and 10 ?Bz EXT ,