Repair manual

PARTS REPLACEMENT
4-21
f. Unhook the spring from the Stepper Motor remove the retaining
ring from the pivot pin, and slide the Motor out.
g. Unplug the Stepper Motor cable from the Logic Board Assembly,
then remove the motor and cable.
3. INSTALLATION:
a. Install the Motor in the chassis and replace the retaining reing on the
pivot shaft. Be sure the Motor drive roller rests on the outside of the
Filter Wheel rim.
b. Plug the Stepper Motor cable into P6 on the Logic Board.
c. Press the Mounting Fixture onto the front of the CRT and tighten the
clamp screws.
Note: Press firmly on the CRT while inserting it into the Fixture, making
sure it seats properly.
d. Insert the original shims between the Fixture and the chassis. Secure
the Fixture to the chassis with the four screws.
Note: Install the shims exactly as they were found during disassembly to
insure proper alignment of the CRT.
e. Perform the following Calibration and Adjustment procedures
described in Section 5:
WARNING: Since these procedures must be done with the power
on, use extreme caution to prevent electrical shock.
Electrical/Final Assembly Alignment of CR
Autoluminant Adjustment
COS4 Adjustment
Electrical Focus Adjustment
Digital Palette CRT Collimation
Taking a Test Picture
f. Replace the Light Shield (Figure 4-6).
g. Replace the Cover on the chassis (Figure 4-2).