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Model
PT-VX505NU PT-VX505NE PT-VX505NEA PT-VW435NU PT-VW435NE PT-VW435NEA
Pages
127
Size
20.36 MB
Type
PDF
Document
Service Manual
Brand
Device
Projector / LCD PROJECTOR
File
pt-vx505nu-pt-vx505ne-pt-vx505nea-pt-vw435nu-pt-vw.pdf
Date

Panasonic PT-VX505NU / PT-VX505NE / PT-VX505NEA / PT-VW435NU / PT-VW435NE / PT-VW435NEA Service Manual ▷ View online

-8-
Circuit Protections
The projector will be automatically turned off when the internal temperature of the projector is abnormally high, or the 
cooling fans stop spinning, or the power supplies in the projector are failed.
Warning temperature and power failure protection
The projector is shut down and the WARNING indicator lights red.
When the projector detects an abnormal condition, it is automatically shut down to protect the inside of the projector 
and the WARNING indicator lights red. In this case, unplug the AC power cord and reconnect it, and then turn the 
projector on once again to verify operation. 
WARNING
DO NOT LEAVE THE PROJECTOR WITH THE AC POWER CORD CONNECTED UNDER AN 
ABNORMAL CONDITION. IT MAY RESULT IN FIRE OR ELECTRIC SHOCK.  
Note:
- If the WARNING indicator lights red, it may defect the cooling fans or power supply circuits. Check fans operation  
  and  power supply lines referring to the chapter “Power supply & protection circuit” and "Fan control circuit" in the  
  Chassis Block Diagram section.
When the temperature inside the projector reaches a certain level, the projector will be automatically shut down to 
protect the inside of the projector and the WARNING and ON(G)/STANDBY(R) indicators start blinking. When the 
projector has cooled down enough (to its normal operating temperature), the ON(G)/STANDBY(R) indicator stops 
blinking and lights red, The projector can be turned on again by pressing the  
button.
Note:
The WARNING indicator continues to blink even after the temperature inside the projector returns to normal. When 
the projector is turned on again, the WARNING indicator stops blinking.
Check items
- Remove dust around  the air filter.  
  
- Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots are          
  not obstructed.
- Check if projector is used at higher temperature.
The projector is shut down and the WARNING indicator is blinking red.
LED indicator
WARNING 
indicator
ON(G) / STANDBY(R)
indicator
-9-
Maintenance
n
 Outer Case
  Wipe off dirt and dust using a soft dry cloth.
  •  If the dirt is persistent, soak the cloth with water and wring it thoroughly before wiping. Dry off the projector with a 
dry cloth.
  •  Do not use benzene, thinner, or rubbing alcohol, other solvents, household cleaners, or chemical treated dusters. 
Using them may cause deterioration of the outer case.
n
 Front glass surface of the lens
  Wipe off the dirt and dust off the front surface of the lens with soft clean cloth.
  •  Do not use a cloth that has an abrasive surface or a cloth that is moist, oily, or covered with dust.
  • Do not use excessive force when wiping the lens as it is fragile.
Attention
The lens is made of glass. Impacts or excessive force when wiping may scratch its surface.
Please handle with care.
Before replacing the unit
When you perform maintenance or replacement of the parts, make sure to turn off the power and disconnect the 
power plug from the wall outlet.
Maintenance
n
 Replacement of the air filter unit (side)
1) Remove the air filter cover.
  • Open the air filter cover in the direction of the arrow in 
  the figure and remove it.
2) Remove the air filter unit.
  i) Hold the knob of the air filter unit and pull out in
 
the direction of the arrow, the top of the air filter
 
unit will pop up.
  ii)Take out the air filter unit upwards.
  •  After removing the air filter unit, remove large
 
foreign objects and dust from the air filter
compartment and the projector’s air intake port
 
if there are any.
3) Insert the new air filter unit.
  •  Hold the air filter unit that the knob is outside of
 
the projector, perform Step 2) in the reverse order.
•  Do not press the filter part when push into the
projector at last
4) Install the air filter cover.
  • Make sure that the air filter cover is closed tightly
 
Replacing the unit
Replacement air filter unit: ET-RFV200 
(a pair of air filter unit for back and side)
n
 Air filter unit
Filter prevents dust from accumulating on the optical elements inside the pro-
jector. Should the filter become clogged with dust particles, it will reduce cool-
ing fans’ effectiveness and may result in internal heat buildup and adversely 
affect the life of the projector. If a “Filter warning” icon appears on the screen, 
replace the filter immediately.
Air filter cover (side)
Air filter unit (side)
Knob
-10-
Maintenance
n
 Resetting the filter counter
After replacing the air filter units, be sure to reset the filter 
counter.
1) Press st to select [Filter counter reset].
2) Press the <ENTER> button. 
   [Filter  counter  Reset?]  appears.  Select  Yes  to  con-
tinue. Another confirmation dialog box appears, select 
Yes to reset the Filter counter.
Attention
•  Turn off the power before you replace the air filter unit.
•  When  attaching  the  air  filter  unit,  make  sure  that  the 
projector is stable, and work in an environment that is 
safe, even in the event of the air filter unit dropping.
•  Do not operate the projector with the filters removed. 
Dust may accumulate on the optical elements degrad-
ing picture quality.
•  Do not put anything into the air vents. Doing so may 
result in malfunction of the projector.
•  Do not wash the filters with water or any other liquid 
matter. Otherwise the filters may be damaged.
n
 Attaching the lens cap
When moving this projector or while not using it over an extended period of time, attach the lens cap.
To prevent loss for the lens cap, please according to the following procedures, attach the lens cap  with the string of 
accessories. 
Thread the thinner end of the string through 
1 1 
 
the hole on the lens cap.
Thread the other end of the string through  
2 1 
the hole on the bottom of the projector. 
Lens cap
String
n
 Replacement of the air filter unit (back)
1) Remove the air filter cover.
  • Open the air filter cover in the direction of the arrow in 
  the figure and remove it.
2) Remove the air filter unit.
  • Hold the knob of the air filter unit and pull out in
 
the direction of the arrow.
  •  After removing the air filter unit, remove large
 
foreign objects and dust from the air filter
compartment and the projector’s air intake port
 
if there are any.
3) Insert the new air filter unit.
  •  Hold the air filter unit that the knob is outside of
 
the projector, perform Step 2) in the reverse order.
•  Do not press the filter part when push into the
projector at last
4) Install the air filter cover.
  • Make sure that the air filter cover is closed tightly
Air filter cover (back)
Air filter unit 
(
back
)
Knob
-11-
Maintenance
n
 Lamp unit
The lamp unit is a consumable component. You can check the total usage time using Lamp runtime in the Information 
menu.
It is recommended to ask an authorized engineer to replace the lamp unit. Contact your dealer.
Consult your dealer to purchase a replacement lamp unit.
CAUTION:
n
 Do not replace the lamp unit when it is hot. (Wait at least 1 hour after use.)
  The inside of the cover can become very hot, take care to avoid burn injuries.
n
 Notes on the replacement of the lamp unit
  •  The luminous source of the lamp is made of glass and may burst if you hit 
it against a hard surface or drop it.
    Please handle with care.
  •  A Phillips screwdriver is required for replacement of the lamp unit.
  • When replacing the lamp unit, be sure to hold it by the handle.
• When replacing the lamp because it has stopped illuminating, there is a  
 
possibility that the lamp may be broken. If replacing the lamp of a projec- 
 
tor which has been installed on the ceiling, you should always assume 
  that the lamp is broken, and you should stand to the side of the lamp 
  cover, not underneath it. Remove the lamp cover gently. Small pieces of 
  glass may fall out when the lamp cover is opened. If pieces of glass get 
  into your eyes or mouth, seek medical advice immediately.
  • The lamp contains mercury. Consult your local municipality or your dealer 
 
about correct disposal of used lamp units.
n
 When to replace the lamp unit
   The lamp unit is a consumable component. Brightness decreases according to duration of usage, so periodical 
replacement of the lamp unit is necessary. When the projection lamp of the projector reaches its end of life, the 
lamp replacement icon appears on the screen and <LAMP> indicator lights yellow. Replace the lamp with a new 
one promptly.
 
 
Lamp runtime
On screen
Lamp replacement icon
LAMP indicator
Over 2 500 hours*
The message is displayed for 4 seconds. If you 
press any button within the 4 seconds, the message 
disappears.
Lights in yellow (even in stand-
by mode).
Over 2 700 hours*
If the power is turned on without replacing the lamp, 
the power automatically turns off after approximately 
ten minutes to prevent the malfunction of the projector.
2 700 hours of use is a rough guideline, but is not a guarantee. The lamp runtime differs depending on the setting 
of "Lamp power" menu.
Note
•   Allow a projector to cool enough before you open the lamp cover. The inside of the projector can become very hot.
•  The Lamp replacement icon will not appear when the [Display] function is set to [Off], or during "Freeze", or "AV 
mute".
Attention
•  Do not use other than designated lamp units.
•  The part numbers of accessories and separately sold components are subject to change without notice
Replacement lamp unit: ET-LAV200
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