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6. Installation is the reverse process with the following requirements.
•
The lock washer is inserted between the PEM and the painted side of the back panel.
•
The flat washer is inserted between the non-painted side of the back panel and the nut.
•
The green (ground) wire is connected to the terminal soldered directly to the metal surface. The blue wire
is connected to the terminal labeled N and the brown wire to the terminal marked P.
P
R
LATFORM
EMOVAL
1. Remove the top cover and remove the lamp.
2. Remove the front bezel by removing the 5 screws that secure it to the bottom chassis. Remove the internal
module.
3. Remove the two screws from the air duct strap and remove the duct.
4. Remove the 4 screws securing the platform.
5. Remove the lamp shroud from the platform.
6. Remove the platform and the thermistor assembly from J12.
7. Installation is the reverse process. When installing the platform, verify that the shroud duct, the strap, and the
internal module are installed. Reattach the front bezel and check for attenuator wheel alignment.
•
Rotate the wheel across its adjustment range and if the wheel moves freely, continue, if it does not move
freely, loosen the platform screws and reposition the platform so the wheel rotates freely.
F
B
R
RONT
EZEL
EMOVAL
1. Remove the top cover.
2. Remove the 5 screws, securing the front bezel to the bottom chassis.
3. Noting the wire locations, remove the wires from the power switch. Push out the power switch.
4. Using a sharp knife, remove the black RTV from the LED. Once removed, apply acetone to the area between
the LED and the front panel to loosen the glue bond. Remove the LED.
5. Installation is the reverse process with the LED glued to the front panel using Loctite 430 or equivalent. Once
set, apply opaque sealant, Dow Corning 737 or equivalent, to the area around the LED to prevent light from
the illuminator passing through the LED.
B
F
R
LOWER
AN
EMOVAL
1. Remove the top cover.
2. Remove the front bezel as described previously.
3. Remove the air duct strap and duct as described above.
1-34
WELCH ALLYN
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