Panasonic PT-EZ770Z Service Manual page 32

SECTION 1 SERVICE INFORMATION
5. 3. 3. Notes on the replacement of the lamp unit
Warning
Replace the lamp unit after the lamp has cooled (after waiting at least one hour).
The high temperature inside the cover will cause burns.
• A Phillips screwdriver is necessary when replacing the lamp unit.
• Since the luminous lamp is made of glass, it may burst if dropped or hit with a hard object. Handle with care.
• Do not disassemble or modify the lamp unit.
• When replacing the lamp unit, be sure to hold it by the handle because its surface is pointed and its shape is protruded.
• T he lamp may rapture. Replace the lamp unit carefully so the glass fragments of the lamp do not scatter. While attaching the
projector to the ceiling, do not work right under the lamp unit or do not conduct work while your face is near the lamp unit.
• The lamp contains mercury. When disposing of used lamp units, contact your local authorities or dealer for correct methods
of disposal.
5. 3. 4. Replacement procedure for lamp unit
Attention
• While attaching the projector to the ceiling, do not work right under the lamp unit
or do not conduct work while your face is near the lamp unit.
• Do not remove or loosen the screws other than specified ones when replacing the
lamp unit.
• Make sure to attach the lamp unit and the lamp cover securely.
• If the lamp unit is not installed properly, remove it and then push it in slowly. Push-
ing it in quickly or forcibly may break the connector.
1) Set the <MAIN POWER> switch to <OFF> and disconnect the power plug
from the power outlet.
• Wait at least one hour and check if the lamp unit has cooled down.
2) Remove the lamp cover. (Fig. 1)
• Use a Phillips screwdriver to turn the lamp cover fixing screw (x1) counterclock-
wise until it turns freely, and slide the lamp cover slowly in the direction of the
arrow to remove it.
• Opening the lamp cover quickly may result in falling.
3) Remove the lamp unit. (Fig. 2)
• Use a Phillips screwdriver to turn the lamp unit fixing screws (x3) coun-
terclockwise until they turn freely, and remove the lamp unit.
• Hold the handles of the lamp unit and remove it straight.
4) Push in the new lamp unit while paying attention to the insertion
position.
• If the lamp unit is not installed properly, remove it and then push it in
slowly. Pushing it in quickly or forcibly may break the connector.
5) Use a Phillips screwdriver to firmly tighten the lamp unit fixing
screws (x3).
• Make sure to attach the lamp unit securely.
6) Attach the lamp cover.
i) Perform Step 2) in the reverse order to attach the lamp cover.
ii) Use a Phillips screwdriver to firmly tighten the lamp cover fixing screw
(x1).
• Make sure to attach the lamp cover slowly and securely.
Note
• When you replace the lamp unit with new one, the projector resets the runtime of the lamp unit automatically
INF-24
Lamp cover
Lamp cover fixing screw
Fig. 1
Lamp unit fixing screws
Lamp unit
Handles
Fig. 2