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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
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
High-Voltage Regulator Assembly.
6. Connect the jumper wire from chassis ground to the black wire
coming from the
High-Voltage Multiplier at the wire’s
connection to
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
High-Voltage Regulator,
High-Voltage Multiplier, and
CRT assemblies should now be
discharged.
8. A small bracket and screw secure the
High-Voltage Regulator
Assembly to the
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
High-Voltage
Regulator Assembly.
Adjustments
Содержание HP 8566B
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Страница 137: ...Test 19 1st LO Output Amplitude Steps Min Measured Max 4 1st LO OUTPUT Level 5 dBm 2 112 Performance Tests ...
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Страница 351: ...23 Track and Hold Adjustments 25 Repeat steps 4 through 24 until no further adjustments are required Adjustments 3 211 ...
Страница 404: ...AIVI Wi AlAl ti2 W8 Figure 6 6 IF Section Front View 6 8 Major Assembly and Component locations ...