HP 8566B Adjustment Manual page 318

2 1. Frequency Response Adjustments
3-178 Adjustments
verify that the power meter indication is -10.00 dBm fO.10
tolerance, perform adjustment procedure 19, "CAL OUTPUT
Adjustment", before continuing with this adjustment procedure.
the
6. Disconnect power meter/power sensor from the speqtrum
analyzer front-panel CAL OUTPUT connector.
7. Press (2-22) on the synthesized sweeper. Set the synthesized
sweeper controls as follows:
CW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21.4 MHz
POWER LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 15.0 dBm
8. Connect the low-loss microwave test cable to the frequency
synthesizer RF OUTPUT using an APC 3.5 (f) to APC 3.5 (f)
adapter. Connect the power meter/power sensor to the opposite
end of the test cable using a Type N (f) to APC 3.5 (f) adapter.
9. On the synthesized sweeper, press
ENTRY knob for a power meter indication of -15.00 dBm f0.03
10. Disconnect cable 81 (gray/brown) Wl from A6A3J3 (21.4 MHz
OUT) on the A6A3 Last Converter Assembly. Disconnect the
power sensor from the low-loss microwave test cable, and
connect the test cable to cable 81 (gray/brown) Wl using an
SMB (m) to SMA (f) adapter. See Figure 3-90 for
11. On the spectrum analyzer, key in [j) 8. Verify that the
displayed signal amplitude indicated by the MARKER is -10.00
this tolerance, perform the following adjustment procedures
as necessary to adjust the overall RF gain of the HP 85662A
IF/Display Section before continuing with this adjustment
procedure:
5. Log Amplifier Adjustments
6. Video Processor Adjustments
10. Step Gain and 18.4 MHz Local Oscillator Adjustments
8. 21.4 MHz Bandwidth Filter Adjustments
11. Down/Up Converter Adjustments
12. Disconnect the low-loss microwave test cable from cable 81
(gray/brown) Wl, and reconnect cable 81 (gray/brown) Wl to
13. Connect the DVM to AGAlOTPl, and connect
14. Adjust AGAlORl IO (3.3 GHz Oscillator Drive, to IE on A6A4
Second Converter) for a DVM indication of -0.15 ho.01 Vdc. See
Figure 3-90 for the location of AGAlORl.
15. Connect the DVM to A6A12TP3 (-9 V), and connect the
DVM ground to A6A12TP2 (YTX COM) in the RF Section. See
Figure 3-90 for the location of A6A12TP3 and A6A12TP2.
( )
and adjust the
POWER LEVEL
the
on
the A6A3 Last Converter Assembly.
the DVM ground to
location of
not within