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Chapter 4---Maintenance (Removal/Replacement)
Figure 4-12. ILA
®
Assembly top view. The overlap screws shown are
visible after the ILA
®
assembly is removed.
4. Loosen the two wingnuts at the top of the appropriate
ILA
®
assembly (Figure 4-12).
5. Slide the spring clip at the top of the ILA
®
assembly
backward (Figure 4-12). This will free the ILA
®
assembly.
6. Grasp the ILA
®
assembly by its housing and slide it out.
7. Replace the ILA
®
in the reverse order from above.
8. Recheck convergence, shading, ILA
®
bias and G2 and
readjust, if necessary (User’s Guide, Sections 5.8, 5.10,
5.7, 5.9).
9. Recheck the ILA
®
Back Focus (Section 3.4) and the ILA
®
Overlap adjustment (Section 3.8).
4.16 Relay Lens
To remove a Relay Lens (refer to Figure 4-11):
1. Remove the rear cover (Section 4.2).
2. Tilt up the Electronic Module (Section 3.3)
3. Remove the corresponding CRT Assembly behind the
Relay Lens that is to be removed.
4. Loosen the CRT Lens Stopper Ring (the thin collar just in
front of the CRT Holder knurled ring-Figure 4-11) and
slide it off the back of the Relay Lens.
Model 200 Service Manual 4-19