Reassembly Procedures - HP 8481H Operating And Service Manual

HP 8481H/82H
Service
Reassembly Procedures
Caution
The gold wires connecting the A1 Bulkhead Assembly and the A2
Input Amplifier Assembly are extremely delicate and may be easily
broken. Be careful when working around them.
Place the printed circuit board and connector into place.
Cap screws 8, 9, 11, 12, 14, and 15 must be inserted but not
tightened. Refer to figure 6.
Center the circuit board so there is equal air gap between each
side and the chassis. Tighten 8, 9, 14, and 15.
With small hole 5 to the left, carefully insert the gold leads on
A1 bulkhead assembly through the holes in the black plastic
guide on A2 input amplifier.
Insert screw 3, 4, and 6. Tighten only screw 6.
Position the ends of the gold wires over he pads on A2U1. The
wires should not pass over the hole in the pad. Lightly clamp the
leads in place with screw 7. DO NOT fully compress the spring.
Place the upper chassis in position and insert cap screws 1, 2, 10,
and 13.
Tighten 1, 2, 3, and 4.
Tighten 10, 11, 12, and 13.
Place the plastic shells, magnetic shields, and the chassis together
as shown in figure 1. Snap the plastic shells together.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
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