Hitachi ED-X20EF, Service Manual

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ED-X20EF (M1-20ED)
When assembling
a. Tighten 7 screws on the bottom and 3 screws on the rear after attaching the upper case with the lamp door
separated.
In order not to make a gap between the upper and the bottom cases, tighten these screws while pressing
down the upper case in the direction of the arrow. Be careful not to bend the outside casing. (Torque:0.39-
0.59N•m)
b. Attach the Lamp door.
Lamp door
CAUTION
Tighten this screw using a manual screwdriver.
3. Replacing the power units.
You have to remove the Optics unit, Lamp duct and Lamp house in order of , and before
dettach the power unit.
Remove the 4 screws to take off the power units.
Push
PCB holder
Push
UP
UP keep
NOTE : Detaching power unit(circuit)
Stick two pieces of the power unit cushion
to power unit when replacing it.
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