Fluke 8508A, Руководство по обслуживанию

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Maintenance
Access Procedures
4
4-5
Removing the A1 DC PCA
Use the following procedure to remove the A1 DC PCA. See Figure 4-2.
1.
Position the unit on the work surface so it is bottom-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 bottom cover
B
.
a. Remove the one philips screw at rear of the bottom cover.
b. Slide the cover toward the back of the unit, and lift it off.
4. Remove the bottom shield
C
.
a. Remove the six philips screws from the shield.
b. Slide the shield toward front of unit, and lift it out.
5. Remove the A1 DC PCA
D
.
a. Disconnect the Rear Input PCA from the A1 DC PCA.
b. Disconnect the five connectors from the rear edge of the A1 DC PCA.
c. Disconnect the 10 connectors from the front edge of the A1 DC PCA.
d. Disconnect the red and black wires from the screw termininals on the PCA.
e. Remove the two philips screws from the A1 DC PCA.
f. Slide the A1 DC PCA to the side and lift it from the chassis.
3
4
1
2
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Figure 4-2. Removing the A1 DC PCA