Agilent Technologies HP 8566B Spécifications Page 180

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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
AlA
High-Voltage Regulator Assembly.
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.
AIA3
High Voltage
w21
AlAl
1
Regulator
AlA3T
II
/
/
AlA3Tl
AlA
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.
3-40
Adjustments
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