Read Panasonic PT-TW371R (serv.man3) Service Manual online
INF-5
SECTION 1 SERVICE INFORMATION
<TW371R>
Note
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After cleaning the air filter, reset the filter counter. Otherwise, the actual filter usage time cannot be confirmed.
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Replace the air filter unit with the new optional Replacement Filter Unit (Model No.: ET-RFL300) if it is damaged or if the dirt
does not come off even after cleaning.
2. 2. Replacing the Unit
Lamp unit
The lamp unit is a consumable component. Refer to “When to replace the lamp unit” for details about the replacement cycle.
When purchasing the optional Replacement Lamp Unit (Model No.: ET-LAL510), consult your dealer.
Warning
Do not replace the lamp unit when it is hot. (Wait at least one hour after use).
The inside of the cover can become very hot, take care to avoid burn injuries.
Notes on the replacement of the lamp unit
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A Philips screwdriver is necessary when replacing the lamp unit.
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Since the luminous lamp is made of glass, it may burst if it drops or hit with a hard object.
Handle with care.
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Do not disassemble or modify the lamp unit.
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When replacing the lamp unit, be sure to hold it by the handle because its surface is pointed
and its shape is protruded.
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The 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.
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The lamp contains mercury. When disposing of used lamp units, contact your local authori-
ties or dealer for correct methods of disposal.
Attention
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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.
Note
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The model numbers of accessories and optional accessories are subject to change without prior notice.
When to replace the lamp unit
The lamp unit is a consumable component. Since its brightness gradually decreases over time, it is necessary to replace the
lamp unit regularly.
Please refer to the displayed time in [Lamp counter] of [Info.] about the usage time of lamp.
The estimated duration before replacement is 20 000 hours which is displayed in [Lamp counter], but the lamp may go off be-
fore the time above mentioned has elapsed depending on individual lamp characteristics, usage conditions, and the installation
environment. It is recommended that the Replacement lamp unit be prepared earlier.
The time which is displayed in [Lamp counter] is a total time when the real usage time in [ (Normal)], [ (Eco)] or [ (Quiet)]
is converted to the runtime in [ (Eco)]. Please note that they are not displayed individually.
The displayed time in [Lamp counter] = “Lamp runtime of [ (Normal)]” × 2 + “Lamp runtime of [ (Eco)]”
+ “Lamp runtime of [ (Quiet)]” × 2
The real usage time when the displayed time in [Lamp counter] is 20 000 hours means,
When [Lamp control] is constantly set to [ (Normal)] without switching to other modes = 10 000 hours
When [Lamp control] is constantly set to [ (Eco)] without switching to other modes = 20 000 hours
When [Lamp control] is constantly set to [ (Quiet)] without switching to other modes = 10 000 hours
If you continue to use the lamp unit after the displayed time in [Lamp counter] 22 000 hours has elapsed, the lamp turns off
automatically at approximately 10 minutes after turning on the power, as it will cause malfunction of the projector.
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