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Chapter 4---Maintenance (Removal/Replacement)
4.16 ILA
4-20
still connected to the CRT socket connector and the
ground wire still connected from the CRT to the socket
connector. This is because the Green socket connector
is close to the rear of the projector and is easier to
disconnect from the CRT after the CRT/Yoke Assembly
is loose and is moved away from the rear. Be careful
not to break any of these connections.
Gently remove the CRT/Yoke Assembly by sliding it
backward and upward as far as possible before
unplugging the CRT socket connector from the neck.
Use caution to avoid bumping the CRT/Yoke Assembly
as it is being removed.
9. After removing the CRT/Yoke Assembly, carefully
unplug the CRT socket connector and the ground wire
that connects the CRT to the socket connector. NOTE:
It may be helpful to have another person assisting for
step 9. One person can unplug the CRT socket
connector and ground wire, while the other person
holds the CRT/Yoke Assembly firmly.
10. After verifying that all cables are out of the way,
remove the CRT/Yoke Assembly from the projector.
11. Reinstall the CRT/Yoke Assembly in the reverse order.
NOTE: When reinstalling the CRT/Yoke Assembly,
plug the CRT ground wire into the CRT Socket
Connector first, then partially plug in the Green socket
connector into the CRT. When the CRT is completely
installed it will be easier to fully insert the CRT into the
socket connector.
12. Perform a CRT Mechanical focus adjustment (Section
3.5) and CRT Rotation (Section 3.6) after replacing the
CRT/Yoke Assembly. Check the CRT Mechanical
Focus on the other two colors to verify that they are still
correct. It is possible the other focus adjustments could
have been disturbed by the removal and replacement
of the CRT/Yoke Assembly.
®
Assembly
®
To remove an ILA
Assembly:
1. Remove the rear cover (Section 4.2).
2. Tilt up the Electronic Module (Section 3.3).
3. Disconnect the connector on the top of the appropriate
®
ILA
assembly. (Figure 4-11).
Model 220 Service Manual
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