Philips Proscreen Pxg20 Projector User Manual

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CONNECTING RS-232C PORT
When the RS-232C port on the projector is connected to a
computer with an RS-232C cable (cross type, sold separately),
the computer can be used to control the projector and check
the status of the projector.
1.Connect the supplied DIN-D-sub RS-232C cable to the RS-
232C port on the projector.
2.Connect a RS-232C cable (sold separately) to the other end
of DIN-D-sub RS-232C cable and to the serial port on the
computer. See page 14 for details.
CAUTION!
–Do not connect or remove RS-232C cable to or from the
computer while it is on. This may damage your computer.
–The wireless mouse or RS-232C function may not operate if
your computer port is not correctly set up. Please refer to
the operation manual of the computer for details on setting
up/installing the correct mouse driver.
–A Macintosh adapter may be required for use with some
Macintosh computers. Contact your nearest Philips
Authorised LCD Projector Dealer or Service Centre.
–For more details on specification of the use of the RS-232C
please contact your nearest Philips Authorised LCD projector
Dealer or Service Centre.
AIR FILTER MAINTENANCE
•This projector is equipped with two air filters to ensure the
optimal operating condition of the projector.
•The air filters should be cleaned every 100 hours of use.
Clean the filters more often when the projector is used in a
dusty or smoky location.
•Have your nearest Philips Authorised LCD Projector Dealer
or Service Centre exchange the filter when it is no longer
possible to clean it.
Cleaning and replacing the bottom air filter
1.Unplug the powercord.2.Remove the bottom filter cover.–Turn over the projector. Press the tab and lift open the filter
cover in the direction of the arrow.
3.Remove the air filter.–Grasp the air filter between your fingers and lift it out of the
filter cover.
4.Clean the air filter. Clean the dust off the air filter and cover
with a vacuum cleaner extension hose.
5.Replace the air filter. Place the air filter underneath the tabs
on the filter frame.
6.Replace the filter cover. Insert the tab on the end of the
filter cover into the filter cover opening and press the filter
cover into position.
Note:Be sure the filter cover is securely installed. The power will not
turn on unless it is correctly installed. 
Cleaning the side air filter (not removable)
If dust or dirt has collected inside the air filter, clean the filter
with a vacuum cleaner extension hose.
Note:The side air filter cannot be removed.
LAMP MAINTENANCE
Lamp/Maintenance Indicators•The warning lights on the projector indicate problems inside
the projector.
•There are two warning lights: a temperature warning
indicator (Temp.) which warns that the projector is too hot,
and a Lamp indicator (Lamp) which lets you know when to
change the lamp.
•If a problem occurs, either the Temperature warning
indicator or the Lamp indicator will light up red. After turning
off the power, follow the procedures given in the next table.
) )
11. ADDITIONAL INFORMATION
Air
filter
Air filter
(not removable)
Connecting RS-232C port/Maintenance 
						

							30
11. ADDITIONAL INFORMATION
Notes:–If the Temperature warning indicator lights up, follow the
above possible solutions and then wait until the projector
has cooled down completely before turning the power back
on. (At least 5 minutes.)
–If the power is turned off and then turned on again, as during
a brief rest, the Lamp indicator may be triggered, preventing
the power from going on. Should this occur, take the
powercord out of the wall outlet and put it back in again.
Lamp (LCA 3112; 8670 931 12009)
The lamp in this projector operates for approximately 1,000
cumulative hours, depending on the usage environment. It is
recommended that the lamp be replaced after 900 cumulative
hours of use or when you notice a significant deterioration of
the picture and color quality. The lamp usage time can be
checked with the On-screen Display (see page 26). Carefully
change the lamp by following the steps under ‘Replacing the
lamp’.
If the new lamp does not light after replacement, take your
projector to the nearest Philips Authorized LCD Projector
Dealer or Service Center for repair. Purchase a replacement
lamp unit (lamp/cage module) of the current type 
LCA 3112; 8670 931 12009 from your nearest Philips
Authorized LCD Products Dealer or Service Center. 
Then carefully change the lamp by following the instructions
below. If you wish, you may have the lamp replaced at your
nearest Philips Authorized LCD Projector Dealer or Service
Center. 
CAUTION!
–Intense light hazard. Do not attempt to look into the aperture
and lens while the projector is operating.
–As the usage environment can vary significantly, the
projector lamp may not operate for 1000 hours.Replacing the lamp
1.
Turn off the power.
–Press Power OFF. Wait until the cooling fan stops.
2.Disconnect the powercord.
–Unplug the powercord from the AC socket and unplug all
the other cables.
3.Slide the lamp cage cover out.
–Turn over the projector and unfasten the user service screw
that secures the lamp cage cover. Then slide the cover in
the direction of the arrow.
4.Remove the lamp cage.
–Remove the securing screws from the lamp cage. 
Hold the lamp cage by the handle and pull it towards you.
5.Replace the lamp cage.
–Press the lamp cage firmly into the lamp cage
compartment. Fasten the securing screws.
Securing screws
Maintenance Indicator
TEMPERATURE
WARNING indicator.
LAMP REPLACE-
MENT indicator.
POWER indicator.
Condition
The internal temperature is
abnormally high.
The lamp does not light up.
The lamp requires
replacement.
The POWER indicator
flashes in red when the
projector is on.
Problem
• Blocked air intake.
• Clogged air filter.
• Cooling fan breakdown.
• Internal circuit failure.
• Burnt-out lamp.
• Lamp circuit failure.
• Lamp has been used for
over 900 hours.
• The bottom filter cover is
open.
Possible Solution• Relocate the projector to an area withproper ventilation.
• Clean the filter. (See page 29.)
• Take the projector to your nearest Philips
Authorized LCD Projector Dealer or
Service Center for repair.
• Carefully replace the lamp.(See pages 30
and 31.)
• Take the projector to your nearest
Authorized Sharp Industrial LCD Products
Dealer or Service Center for repair.
•Securely install the bottom filter cover.
Condition
The LAMP REPLACEMENT indicator lights up
red, and ‘LAMP‘ and ‘’ will flash in yellow
in the lower-left corner of the picture.
A significant deterioration of the picture and
color quality occurs.
The power will automatically turn off and the
projector will enter standby mode.
‘LAMP‘ and ‘’ will flash in red in the lower-
left corner of the picture, and the power will
turn off.
Problem
•Lamp has been used for over 
900 hours.
•Lamp has been used for over
1,000 hours.
Possible Solution
•Purchase a replacement lamp unit
(lamp/cage module)of the current type
LCA 3112 (8670 931 12009) from your
nearest Philips Authorized LCD Projector
Dealer or Service Center.
•Replace the lamp.(See pages 30 and 31.)If
you wish,you may have the lamp replaced
at your nearest Philips Authorized LCD
Projector Dealer or Service Center.
Maintenance 
						

							31
6.Slide the lamp cage cover in.
–Slide the lamp cage cover in the direcrtion of the arrow.
Then fasten the user service screw.
Note:
Be sure the lamp timer is reset after replacing the lamp. 
If not reset, the projector does not recognize the lamp
replacement and the previous status remains unchanged.
CAUTION!
–Do not remove the lamp cage directly after operation of the
projector. The lamp may be extremely hot. Wait at least one
hour after the powercord is disconnected to allow the
surface of the lamp cage to fully cool before removing the
lamp cage.
–Be sure to remove the lamp cage by the handle. Be sure not
to touch the glass surface of the lamp cage or the inside of
the projector.CAUTION!
–To avoid injury to yourself and damage to the lamp, be sure
to carefully follow each steps under ‘Replacing the lamp’.
–Before or after replacing the lamp, be sure to clean the air
filters. See page 29 for cleaning the air filters.
Resetting the lamp timer
1.
Connect the powercord.
–Plug the powercord into the AC socket of the projector.
2.While pressing 4, 2and OK on the projector, press Power
ON on the projector.
–‘Lamp 0000H’ is displayed, indicating that the lamp timer is
reset.
KENSINGTON LOCK
This projector has a Kensington Security Standard slot for use
with a Kensington Micro Saver Security System. Refer to the
information that came with the system for instructions on how
to use it to secure the projector. 
) )
11. ADDITIONAL INFORMATION
Kensington
Security
Standard connector
Maintenance 
						

							32
PROBLEM
•CHECK
NO PICTURE AND NO SOUND.
•Projector powercord is not plugged into the wall outlet.
•The bottom filter cover is not securely installed.
•Selected input is wrong. (See pages 15)
•Cables improperly connected to rear panel of the projector.
(See pages 12-14)
•Remote control batteries have run down. (See page 10)
•On-screen Display (‘AV-MUTE’) is turned off and AV-Mute
function is turned on, creating a black image. (See page 23)
POWER CANNOT BE TURNED ON OR OFF USING THE
POWER BUTTONS (ON/OFF) OF THE PROJECTOR
•Keylock level is set to Level A or Level B, preventing
operation of some or all buttons (See page 26)
SOUND IS HEARD BUT NO PICTURE APPEARS
•Cables improperly connected to rear panel of the projector.
(See pages 12-14)
•’Contrast’ and ‘Bright’ adjustments are set to minimum
position. (See page 19)
PICTURE APPEARS BUT NO SOUND IS HEARD
•Cables improperly connected to rear panel of the projector.
(See pages 12-14)
•Volume is set to minimum. (See page 20)
COLOUR IS FADED OR POOR
•’Color’ and ‘Ti n t’ adjustments are not correct. 
(See page 19)
COLOUR IS DISTORTED (EXCEPT FOR VIDEO MODE)
•Change the input signal type. (See page 15)
PICTURE IS BLURRED
•Adjust the focus. (See page 10)
•Projection distance is too long or too short to allow for
proper focus. (See page 9)
PICTURE NOISE APPEARS
•Adjust the phase setting. (See page 18)
•Noise may appear when used with certain computers.
480P IMAGES DO NOT APPEAR
•Set the resolution mode to 480P. (See page 17)
AN UNUSUAL SOUND IS OCCASIONALLY HEARD FROM
THE CABINET
•If the picture is normal, the sound is due to cabinet
shrinkage caused by temperature changes. 
This will not affect operation or performance.
MAINTENANCE INDICATOR LIGHTS UP
•Refer to ‘Lamp/Maintenance Indicators’ on page 29-30.
AFTER REPLACING LAMP, THE PREVIOUS STATUS
REMAINS UNCHANGED.
•Reset the lamp timer. (See page 31)
LENS COMES OFF
•Align the mark on the lens with the corresponding mark on
the projector, push the lens firmly in place, and rotate to the
right.
12. TROUBLESHOOTING
If a fault occurs, first check the points listed below before taking the projector for repair.
If you are unable to remedy a problem by following these hints, consult your dealer or service organisation.
WARNINGUnder no circumstances should you try to repair the projector yourself as this could invalidate the warranty.