DOWNLOAD Panasonic PT-EX12KU / PT-EX12KE Service Manual ↓ Size: 31.28 MB | Pages: 127 in PDF or view online for FREE

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  • Do not smear the glass surface by touching it with your hand.
6) Close the lamp cover, and use a Phillips screwdriver to firmly tighten the lamp cover fixing screw.

Note
•  When replacing with the new lamp unit, the projector resets the total usage time of the lamp unit automatically.
•  After replacing the lamp unit, be sure to tighten the lamp cover fixing screw. If not, the lamp unit may drop off 

while projecting

TURN OFF THE UV LAMP BEFORE OPENING THE LAMP COVER

To prevent glass fragments from scattering, hold the lamp unit vertically when replacing it. When the 
projector is attached to the ceiling, do not work directly under the lamp cover or put your face near it.
Remove the lamp cover slowly.

LAMP NO. : ET-LAE12

Screw

Screw

Lamp 1

Lamp 2

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The LAMP REPLACE indicator will light yellow when the total lamp used time (Corresponding value) reaches 2,000 
hours. This is to indicate that lamp replacement is required.
The total lamp used time is calculated by using the below expression,
Total lamp used time (Corresponding value) = 

eco  x 0.67 +  

normal  

: used time in the Eco 1 and Eco 2 mode

normal   : used time in the Normal mode and Auto mode

You can check the lamp used time following to the below procedure.

  Press and hold the

 button on the projector or the 

POWER ON button on the remote control for more than 20 

seconds.

 The projector used time and lamp used time will be displayed on the screen briefly as follows. 

Projector used time

Lamp 2 Total lamp used time

Lamp 1 Total lamp used time

Auto

Normal Eco 1

Eco 2

✔

✔

✔

✔

Lamp used time table  in the Lamp 
control - Lamp mode

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If the non-standard lamp is used, the warning and confirmation messages will appear on the screen every startup. 
Some of the functions are limited when the non-standard lamp is used in spite of the warning.

Since the lamp is not standard, 

projector failed to read lamp data.

Continue to use this lamp?

Yes

No

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This projector provides a cabinet front cover and lamp cover on the cabinet top to enhance the service maintenance. 
This enables service personnel to align the optical adjustment or replace the optical parts without disassembly the 
cabinet top.

Turn the Cabinet Front Ring anti-clockwise and pull it 
forward to remove.

 Remove 2 screws-A and loosen 2 screws-B, and pull 
the cabinet front cover-A forward.

You can access the projection lens unit, LCD/Prism 
ass'y and Polarized glass ass'y quickly.

Loosen  1  screw-A  on  the  Lamp  Cover.  Slide  and 
open  the  Lamp  Cover  until  it  makes  a  clicking 
sound. 

 Remove 1 screws-B and take the PBS Cover.

You can access the PBS/Integrator lens ass'y 
quickly.

Cabinet front cover-A

Cabinet front ring

PBS Cover

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Remove the cabinet top following to “Mechanical Disassembly”. Clean up the LCD panel and polarizing plate by us-
ing the air spray from the cabinet top opening.

Caution:
Use a commercial (inert gas) air spray designed for cleaning camera and computer equipment. Use a resin-based 
nozzle only. Be very careful not to damage optical parts with the nozzle tip. Never use any kind of cleanser on the 
unit. Also, never use abrasive materials on the unit as this may cause irreparable damage.

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Disassembly cleaning method should only be performed when the unit is considerable dirty and cannot be suffi-
ciently cleaned by air spraying alone. 
Be sure to readjust the optical system after performing disassembly cleaning.

1.  Remove the cabinet top and main units following to  “Mechanical Disassembly”.
2.  Remove the optical base top following to “Optical Unit Disassembly”. If the LCD panel needs cleaning, remove the 

LCD panel unit following to “LCD panel replacement”.

3.  Clean the optical parts with a soft cloth. Clean extremely dirty areas using a cloth moistened with alcohol.

Caution:
The surface of the optical components consists of multiple dielectric layers with varying degrees of refraction. Never 
use organic solvents (thinner, etc.) or any kind of cleanser on these components.
Since the LCD panel is equipped with an electronic circuit, never use any liquids (water, etc.) to clean the unit. Use 
of liquid may cause the unit to malfunction. 

After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass, 
lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of optical unit.
Remove dust and other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean the 
optical unit.

Turn off the projector, press the Main On/Off Switch to Off and unplug 
the AC power cord from the AC outlet before cleaning.

Gently  wipe  the  projection  lens  with  a  cleaning  cloth  that  contains  a 
small amount of non-abrasive camera lens cleaner, or use a lens clean-
ing paper or commercially available air blower to clean the lens. 

Avoid  using  an  excessive  amount  of  cleaner.  Abrasive  cleaners,  sol-
vents, or other harsh chemicals might scratch the surface of the lens.

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Turn off the projector, press the Main On/Off Switch to Off and unplug 
the AC power cord from the AC outlet before cleaning.

Gently wipe the projector body with a soft dry cleaning cloth. When the 
cabinet is heavily soiled, use a small amount of mild detergent and finish 
with a soft dry cleaning cloth. Avoid using an excessive amount of clean-
er. Abrasive cleaners, solvents, or other harsh chemicals might scratch 
the surface of the cabinet.

When the projector is not in use, put the projector in an appropriate car-
rying case to protect it from dust and scratches.

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