Panasonic PT-TX400 / PT-TX310 / PT-TW340 / PT-TX210 / PT-TW250 (serv.man2) Service Manual ▷ View online
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Maintenance
AC IN
J
Replacing the Lamp unit
Attention
● When the projector is mounted on a ceiling, do not work with your face close to the projector.
● Do not remove or Remove the screws other than specified ones when replacing the lamp unit.
● Make sure to attach the lamp unit and the lamp cover securely.
J
Resetting the lamp counter
Be sure to reset the lamp counter after replacing the lamp unit.
1) Connect the power plug, press the power <
1) Connect the power plug, press the power <
> button on the control panel or on the remote control.
2) While pressing the
button on the control panel, press and hold the <INPUT/ENTER> button on the control
panel for 8 seconds or more.
● The lamp counter will be reset to 0. (At this time, there is displaying nothing.)
3) Press the <INFO.> button on the remote control .
● The lamp counter will be reset to 0. (At this time, there is displaying nothing.)
3) Press the <INFO.> button on the remote control .
● The [Info.] screen is displayed.
1) Turn off the power by following the procedure in "Powering Off the Projector" . Remove the AC power
plug from the wall outlet.
plug from the wall outlet.
● Wait at least 1 hour and make sure the lamp unit and surroundings are cool.
2) Use a Phillips screwdriver to Remove the lamp cover fixing screw (×1) until it turns freely and remove
the lamp cover
2) Use a Phillips screwdriver to Remove the lamp cover fixing screw (×1) until it turns freely and remove
the lamp cover
.
● Remove the lamp cover by pulling it slowly toward the direction of the arrow as the above figure shown.
3) Use a Phillips screwdriver to Remove the three lamp unit fixing screws (×3) until they turn freely.
3) Use a Phillips screwdriver to Remove the three lamp unit fixing screws (×3) until they turn freely.
4
)
Hold the used lamp unit by its handles, and pull it gently from the projector.
5) Insert the new lamp unit in correct direction. Tighten the three lamp unit fixing screws (×3) securely with
a Phillips screwdriver.
● When you experience difficulty in installing the lamp unit, remove it and try again. If you use force to install the
lamp unit, the connector may be damaged.
6) Attach the lamp cover. Tighten the lamp cover fixing screw (×1) securely with a Phillips screwdriver.
● Perform step 2) in reverse direction to attach the lamp cover.
● When you experience difficulty in installing the lamp unit, remove it and try again. If you use force to install the
lamp unit, the connector may be damaged.
6) Attach the lamp cover. Tighten the lamp cover fixing screw (×1) securely with a Phillips screwdriver.
● Perform step 2) in reverse direction to attach the lamp cover.
The displayed
time in [Lamp
counter]
On-screen display
<WARNING> indicator
Over 5 700 hours
less than 6 000
hours
The lamp replacement icon
is displayed for 10
seconds. If you press any button within 10 seconds, the
icon disappears.
icon disappears.
The lamp replacement icon
will display for 4 seconds
on the screen after switching the input source or turning on
the projector.
the projector.
--
Over 6 000 hours
less than 6 600
hours
The lamp replacement warning icon
is
displayed for 10 seconds. If you press any button within 10
seconds, the icon disappears.
seconds, the icon disappears.
The lamp replacement warning icon
will
display for 4 seconds on the screen after switching the input
source or turning on the projector.
source or turning on the projector.
Lighting in red. (The indicator will
not light in the standby mode)
The displayed
time in [Lamp
counter]
On-screen display
<WARNING> indicator
Over 6 600 hours
The lamp replacement warning icon
is
displayed for 10 seconds. If you press any button within 10
seconds, the icon disappears.
seconds, the icon disappears.
The lamp replacement warning icon
will
display for 4 seconds on the screen after switching the input
source or turning on the projector.
source or turning on the projector.
The lamp automatically turns off at approximately 10
minutes after turning on the power.
Blinking in red. (The indicator will
not light in the standby mode)
Caution
● The lamp replacement icon or lamp replacement warning icon will not be displayed when during "Freeze" or "AV
mute".
mute".
● The usage period of 6 000 hours which is displayed in [Lamp counter] is a rough estimate and is not guaranteed.
Lamp cover
Lamp cover
fixing screw
Lamp unit
fixing screws
Handles
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Maintenance
The WARNING indicator will light in red when the lamp runtime (corresponding value) reaches 6,000 hours.
This is to indicate that lamp replacement is required. The lamp runtime is calculated by using the below formula.
This is to indicate that lamp replacement is required. The lamp runtime is calculated by using the below formula.
The displayed time in [Lamp counter] = "Lamp runtime of [ (Normal)]" × 1.2 +"Lamp runtime of [ (Eco 1)]"
+ "Lamp runtime of [ (Eco 2)]" × 0.75
Normal
: used time in the normal mode
Eco 1
: used time in the Eco 1 mode
Eco 2
: used time in the Eco 2 mode
Follow the procedure below to check the lamp runtime:
1
Press and hold the
button on the projector or the remote control for more than 20 seconds.
2
The projector runtime and lamp runtime will be displayed on the screen briefly as follows.
How to check the lamp runtime
Counter
Projector
110H
Lamp
Normal 60H
Eco1 30H
Eco2
20H
Corresponding value 117H
Total used time
Projector used time
Cumulative lamp
runtime in each
mode
runtime in each
mode
● To make sure that the display of the [Lamp counter] is reset to [0 H].
● Please try step 2) again if the lamp counter has not been reset.
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Maintenance
Cleaning
Cleaning the projection lens
Unplug the AC power cord before cleaning.
Gently wipe the projection 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 cleaner. Abrasive cleaners, solvents or other harsh chemicals might
scratch the surface of the cabinet.
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 cleaner. 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
carrying case to protect it from dust and scratches.
carrying case to protect it from dust and scratches.
Cleaning the projector cabinet
Cleaning with air spray
Remove the cabinet top following to "Mechanical Disassembly". Clean up the Optical block and polarizing plate by
using the air spray from the cabinet top opening.
using 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 too much cleanser on the
unit. Never use abrasive cleaner, solvent or other rough chemical that may scratch the cabinet surface.
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 too much cleanser on the
unit. Never use abrasive cleaner, solvent or other rough chemical that may scratch the cabinet surface.
Disassembly Cleaning
Disassembly cleaning method should only be performed when the unit is considerable dirty and cannot be
sufficiently cleaned by air spraying alone.
Be sure to readjust the optical system after performing disassembly cleaning.
sufficiently cleaned by air spraying alone.
Be sure to readjust the optical system after performing disassembly cleaning.
1. Remove the cabinet top and main unit following to "Mechanical Disassembly".
2. If the Optical block needs cleaning, remove the Optical block unit following to "Optical block replacement".
3. Clean the optical parts with a soft cloth. Clean extremely dirty areas using a cloth moistened with alcohol.
2. If the Optical block needs cleaning, remove the Optical block unit following to "Optical block 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 parts consist of multiple dielectric layers with varying degrees of refraction.
Never use organic solvents (thinner, etc.) or any kind of cleanser on these parts.
Since the Optical block 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.
The surface of the optical parts consist of multiple dielectric layers with varying degrees of refraction.
Never use organic solvents (thinner, etc.) or any kind of cleanser on these parts.
Since the Optical block 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.
Unplug the AC power cord 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
cleaning paper or commercially available air blower to clean the lens.
a small amount of non-abrasive camera lens cleaner, or use a lens
cleaning paper or commercially available air blower to clean the lens.
Avoid using an excessive amount of cleaner. Abrasive cleaners,
solvents or other harsh chemicals might scratch the surface of the
cabinet.
solvents or other harsh chemicals might scratch the surface of the
cabinet.
After long periods of use, dust and other particles will accumulate on the Optical block, prism, mirror, polarized
glass, lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of the Lighting block.
Remove dust and other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean
the Lighting block.
glass, lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of the Lighting block.
Remove dust and other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean
the Lighting block.
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Security Function Notice
This projector provides security functions such as "Key lock", "PIN code lock" and "Logo PIN code lock". When
the projector has set these security function on, you are required to enter correct PIN code to use the projector. If
you do not know the correct PIN code to the projector, the projector can no longer be operated or started. In this
case, you must reset those functions first according to the resetting procedure described below and then check up
on the projector.
the projector has set these security function on, you are required to enter correct PIN code to use the projector. If
you do not know the correct PIN code to the projector, the projector can no longer be operated or started. In this
case, you must reset those functions first according to the resetting procedure described below and then check up
on the projector.
1. Disconnect the AC power cord from the AC outlet.
2. Keep pressing the INPUT/ENTER button and
2. Keep pressing the INPUT/ENTER button and
button at the same time.
connect the AC power cord into an AC outlet again.
3. Release the
3. Release the
button and the INPUT/ENTER button.
when the ON(G)/STANDBY(R) LED lights up in green.
- The PIN code lock and Logo PIN code lock will be reset as the initial PIN code at the factory and the key lock
- The PIN code lock and Logo PIN code lock will be reset as the initial PIN code at the factory and the key lock
function is disabled.
Please refer to the owner's manual for further information of the security functions.
Function
Description
Key lock
Locks operation of the top control or the remote control.
If the Key lock is enabled with top control lock, the projector can no
longer be started.
Initial setting: Key lock function is disabled
If the Key lock is enabled with top control lock, the projector can no
longer be started.
Initial setting: Key lock function is disabled
Pin code lock
Prevent the projector from being operated by an unauthorized person.
Initial code: “111”
Initial code: “111”
Logo PIN code lock
Prevents an unauthorized person for changing the start-up logo on the
screen.
screen.
Initial code: “111”
Resetting procedure
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