HP 8566B Adjustment Manual page 180

2. High-Voltage Adjustment (SN 3001A and Below)
4. Connect a jumper wire (insulated wire and two alligator clips)
between the shaft of a small screwdriver and the chassis ground
lug on the inside of the high-voltage shield.
5. While holding the insulated handle of the screwdriver, touch the
grounded blade to the following connections:
a. Both brown wires going to the rear of the CRT from AlA via
cable harness W2 1.
b. The yellow, blue, and orange wires in the same cable as "a. "
above.
c. The top lead of each of the 11 large vertical capacitors on the
6. Connect the jumper wire from chassis ground to the black wire
coming from the AlAll High-Voltage Multiplier at the wire's
connection to AlASTl.
H i g h V o l t a g e
R e g u l a t o r
Figure 3-11. Discharging the CRT Post-Accelerator Cable
7. Remove all jumper wires. The AlA High-Voltage Regulator, AlAll
High-Voltage Multiplier, and AlVl CRT assemblies should now be
discharged.
8. A small bracket and screw secure the AlA High-Voltage Regulator
Assembly to the AlAlO Display Motherboard Assembly. The
bottom cover of the IF-Display Section must be removed to gain
access to this screw prior to removal of the AlA High-Voltage
Regulator Assembly.