Relay Lens - Hughes JVC 220 Service Manual

Figure 4-12. ILA

4.17 Relay Lens

Model 220 Service Manual
Chapter 4---Maintenance (Removal/Replacement)
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Assembly top view. The overlap screws shown are
visible after the ILA
4. Loosen the two wingnuts at the top of the appropriate
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ILA assembly (Figure 4-12).
5. Slide the spring clip at the top of the ILA
backward (Figure 4-12). This will free the ILA
assembly.
6. Grasp the ILA
out.
7. Replace the ILA
8. Recheck convergence, shading, ILA
readjust, if necessary (User's Guide, Sections 5.8,
5.10, 5.7, 5.9).
9. Recheck the ILA
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ILA Overlap adjustment (Section 3.8).
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.
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assembly is removed.
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assembly by its housing and slide it
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in the reverse order from above.
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Back Focus (Section 3.4) and the
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assembly
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bias and G2 and
4-21