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Step 4. Disconnect the following dimmer bulkhead MTA receptacles
from yoke termination board:
a. Dimmer motor MTA receptacle from header DIM.
b. Dimmer motor sensor (optical switch) MTA receptacle from
header DIM EOT.
c. Thermal switch MTA receptacle from header T1.
d. Photo Transistor MTA receptacle from header P.T.
Step 5. At head assembly, use screwdriver to remove two 10-32x3 1/
4"PPZ screws securing front assembly to rear assembly (
). Remove front assembly.
Figure 3-16: Seperating Front Assembly from Rear Assembly
Step 6. At front assembly lens stepper motor, using 1/4 inch nutdriver
and needle nose pliers, remove 4-40 SS nylon hex nut and two #4
flat washers securing lens assembly to stepper motor shaft.
HDVW
10-32x3-1/4"
Screw
Rear Assembly
Front Assembly
