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Chapter 4---Maintenance (Removal/Replacement)
8. CAUTION! For the Green CRT/Yoke Assembly only,
this step is best performed with the Green CRT 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.
4.15 ILA
®
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).
4-18 Model 200 Service Manual