If-Display Section Adjustments (Sn 3001A And Below) - HP 8566B Adjustment Manual

1. Low-Voltage Power Supply Adjustments
3-26 Adjustments
1. Position the instrument on its right side with the IF-Display
Section facing right, as shown in Figure 3-l. Remove the top
cover of the IF-Display Section and the bottom cover of the RF
Section.
2. Set the spectrum analyzer LINE switch to ON. The MAINS
power-on indicator AlABDSl (red LED) in the IF-Display Section
should be lit. See Figure 3-2 or Figure 3-3 for the location of
Use Figure 3-2 for IF-Display Sections with serial number prefix 3001A
and below. Use Figure 3-3 for IF-Display Sections with serial numbers
3004A and above.
3. Verify that the + 15 V indicator AlAGDSl (yellow LED) is lit.
4. Connect the DVM to AlA6TP3 on the IF-Display Section. The
DVM indication should be + 15.000 fO.O1O V dc. If the voltage
is out of tolerance, adjust AlA6R9 + 15 V ADJ for the specified
voltage.

IF-Display Section Adjustments (SN 3001A and Below)

Figure 3-2.