Panasonic 20 000lm / WUXGA / 3-Chip DLP™ Projector Operating Manual - Page 183

Chapter 5 Maintenance - Maintenance/replacement Note ff Make sure that the air filter unit is properly attached before using the projector. If it is not properly attached, the projector will suck in dirt and dust causing a malfunction. ff If you use the projector without attaching the air filter unit, the filter indicator blinks in red and the message appears on the projected image for approximately 30 seconds. ff Replace the air filter unit with the new optional Replacement filter unit (Model No.: ET‑EMF510) if it is damaged or if the dirt does not come off even after washing. ff Air filter replacement is recommended after cleaning the unit two times. ff The dust-proof properties may be reduced after each cleaning. Replacing the unit Lamp unit The lamp unit is a consumable component. Refer to "When to replace the lamp unit" (x page 184) for details about the replacement cycle. When purchasing the optional Replacement lamp unit (Model No.: ET‑LAD520 (1 pc), ET‑LAD520F (4 pcs)) and the optional Replacement lamp unit (for portrait mode) (Model No.: ET‑LAD520P (1 pc), ET‑LAD520PF (4 pcs)), consult your dealer. It is recommended that you request a qualified technician to replace the lamp unit. Consult your dealer. 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. Checking the lamp unit to be replaced 1) Check the status of the lamp indicators /// of the projector. ffThe lamp unit corresponding to the lamp indicator that is lit in red is required to be replaced. Notes on the replacement of the lamp unit ffA Phillips screwdriver is necessary when replacing the lamp unit. ffSince the luminous lamp is made of glass, it may burst if dropped or hit with a hard object. Handle with care. ffDo not disassemble or modify the lamp unit. ffWhen replacing the lamp unit, be sure to hold it by the handle because its surface is pointed and its shape is protruded. ffThe lamp may rapture. Replace the lamp unit carefully so that 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. ffThe lamp contains mercury. When disposing of used lamp units, contact your local authorities or dealer for correct methods of disposal. Attention ff Panasonic takes no responsibility for any damage or malfunction of the product resulting from use of lamp units which are not manufactured by Panasonic. Use only specified lamp units. ff For the portrait setting, be sure to use the Replacement lamp unit (for portrait mode). ff Do not use the Replacement lamp unit (for portrait mode) and normal lamp unit together. ff Use the Replacement lamp unit (for portrait mode) only when installing the projector in the portrait setting. Note ff The model numbers of accessories and optional accessories are subject to change without prior notice. ENGLISH - 183