Panasonic PT-EZ57 (serv.man5) Service Manual ▷ View online
INF-19
SECTION 1 SERVICE INFORMATION
<EZ57>
4. 4. 5. Air filter maintenance
Perform maintenance of the air filter in the following case.
• The air filter is clogged with dust, causing the filter replacement message to appear on the screen and the filter indicator
<FILTER> to light in red.
Attention
• Make sure that the projector is stable, and perform the maintenance in a safe place where the unit will not be damaged even
if you drop the air filter cover and the air filter unit.
• After replacing the air filter, reset the filter counter. Otherwise, “FILTER COUNTER has reached the set time.” will appear on
screen.
4. 4. 6. Removing the air filter unit
Air filter cover
Fig. 1
Air filter unit
Fig. 2
Tabs
Knob
Air filter unit compartment and
the projector's air intake port
1) Turn off the power of the projector and set the <MAIN POWER> switch to <OFF> and disconnect the power plug
from the power outlet.
2) Remove the air filter cover (Fig. 1).
• Pull out the air filter cover from the hook of the projector while slightly pushing upward the tabs of the air filter cover and
open it in the direction of the arrow in figure.
• When pulling open the air filter cover, be sure to firmly hold the air filter cover with your hand. Opening the air filter cover
quickly may result in the cover falling.
• Vacuum dust from the air filter with a vacuum cleaner.
3) Remove the air filter unit.
• Pull out the air filter unit from the tabs of the projector while slightly pressing the knob at the center of the frame at the con-
necting terminal side (rear side) inward as shown by the arrow, and remove the air filter unit. (Fig. 2)
• After pulling out the air filter unit, remove foreign objects and dust from the air filter unit compartment and the projector’s
air intake port if there are any.
4. 4. 7. Cleaning the air filter unit
Remove the air filter unit beforehand according to the previously described procedure in “Removing the air filter unit”.
Fig. 1
Fig. 2
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-20
SECTION 1 SERVICE INFORMATION
<EZ57>
1) Wash the air filter unit. (Fig. 1)
i) Soak the air filter unit in cold or warm water and then lightly rinse it.
• Do not use cleaning tools such as brushes.
• When rinsing, hold the frame of the air filter unit without putting strong pressure on the filter.
ii) Rinse the air filter unit two or three times by using fresh water each time.
• Insufficient rinsing may result in odors.
2) Dry the air filter unit. (Fig. 2)
• Let the air filter unit naturally dry off in a well-ventilated place where there is little dust and is not exposed to direct
sunlight.
• Do not dry using drying devices such as dryers.
• After the air filter unit is dried, proceed to “Attaching the air filter unit”.
Attaching the air filter unit
1) Attach the air filter unit to the projector.
• Perform Step 2) in “Removing the air filter unit” in the reverse order.
• Push in the air filter unit securely until it clicks into place.
2) Attach the air filter cover to the projector.
• Perform Step 1) in “Removing the air filter unit” in the reverse order to close the air filter cover, and push in the air filter
cover securely until it clicks into place.
• Make sure that the air filter cover is closed tightly.
Procedure of [FILTER COUNTER RESET]
1) Connect the power plug, set the <MAIN POWER> switch to <ON>, and press the power button <v/b> on the con-
trol panel or on the remote control to turn on the power and start the projection.
2) Press the <MENU> button to display the main menu, then press as to select [PROJECTOR SETUP].
3) Press the <ENTER> button.
4) Press as to select [FILTER COUNTER].
5) Press the <ENTER> button.
• The [FILTER COUNTER] screen is displayed.
6) Press as to select [FILTER COUNTER RESET].
7) Press the <ENTER> button.
• The [FILTER COUNTER RESET] screen is displayed.
8) Press qw to select [OK], then press the <ENTER> button.
• The filter usage time is reset.
Attention
• After washing the air filter unit, dry it thoroughly before attaching it back to the projector. Attaching a wet unit will cause an
electric shock or malfunction.
• Do not disassemble the air filter unit.
Note
• If you use the projector without attaching the air filter unit, the filter indicator <FILTER> blinks in red and the message ap-
pears on the projected image for approximately 30 seconds.
INF-21
SECTION 1 SERVICE INFORMATION
<EZ57>
4. 5. Security password
4. 5. 1. Control device password
•To revert to the factory default password (AAAA), perform the following operations while the screen prompting input of
[MENU LOCK PASSWORD] is displayed.
1. Press the [AUTO SETUP] button on the remote control or the control panel of the projector for at lease 3 seconds.
2. Press the [▼] button for at least 3 seconds.
The password will be initialized.
4. 5. 2. Initial security password
•Initial password : Press [p u q t p u q t] button sequentially and press [ENTER] button.
If the initial password has been changed, ask user to have it.
INF-22
SECTION 1 SERVICE INFORMATION
<EZ57>
5. Troubleshooting
5. 1. LAMP/TEMP/FILTER indicators
If a problem should occur inside the projector, the lamp indicator <LAMP>, the temperature indicator <TEMP>, and the filter
indicator <FILTER> will inform you by lighting or blinking. Check the status of the indicators and remedy the indicated prob-
lems as follows.
Chapter 6 Maintenance — Lamp/temperature/filter indicators
ENGLISH - 121
Lamp/temperature/filter indicators
When an indicator lights up
If a problem should occur inside the projector, the lamp indicator <LAMP>, the temperature indicator <TEMP>,
and the filter indicator <FILTER> will inform you by lighting or blinking. Check the status of the indicators and
remedy the indicated problems as follows.
Attention
f
When switching off the projector to deal with problems, make sure to follow the procedure in “Switching off the projector” (x page 44).
Lamp indicator <LAMP>
Temperature indicator <TEMP>
Filter indicator <FILTER>
Lamp indicator <LAMP>
Indicator status
Lighting in red
Blinking in red
(1 time)
Blinking in red
(3 times)
Status
Time to replace the lamp
unit.
The lamp unit is not
installed.
A problem is detected in the lamp or the power supply for
the lamp.
Cause
f
Was [REPLACE LAMP]
displayed when you
turned on the power?
f
The indicator lights up
when the runtime of
the lamp unit reaches
3 800 hours (when
[LAMP POWER] is set to
[NORMAL]).
f
Is the lamp unit installed?
f
Have you turned on the
power again immediately
after turning it off?
f
Some error has occurred
in the lamp circuit. Check
for fluctuation (or drop) in
the source voltage.
Solution
f
Replace the lamp unit.
f
Install the lamp unit if it is
not installed.
f
If the indicator is still
blinking in red even when
having installed the lamp
unit, need to be repaired.
f
Wait a while until the
luminous lamp cools
off, and then turn on the
power.
f
Turn the <MAIN POWER>
switch to <OFF>.
Note
f
If the lamp indicator <LAMP> is still lit or blinking after taking the preceding measures, ask your dealer for repair.
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