Fluke 8508A, Service Manual

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8508A
Service Manual
4-8
Removing the A4 Digital PCA
Use the following procedure to remove the A4 Digital PCA. See Figure 4-5.
1.
Position the unit on the work surface so it is top-side up.
2. Remove both rear feet.
A
a. Remove the three hex screws from each foot.
b. If the feet are still in place, pull them from the unit.
3. Remove the top and bottom covers.
BC
a. Remove one philips screw at rear of each cover.
b. Slide the covers toward the back of the unit, and lift them off.
4. Remove the Rear Panel
D
a. Remove the six flat-head philips screws from the rear panel (two on either side of
the panel and two with the input/sense connector group.
b. Remove the seven pan-head philips screws distributed across the rear panel.
c. Pull the gray sheet metal portion of the rear panel away from the unit.
5. Set the unit on its side, and remove the screw holding the input/sense connector
group to the chassis.
E
6. Return the unit to its original position.
7. Disconnect the five cable connectors from the A4 Digital PCA.
8. Free the A4 Digital PCA by sliding it out the rear of the chassis.
F
2
3
6
5
4
1
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Figure 4-5. Removing the A4 Digital PCA