Proxima Dp5500 Projector User Manual

							Maintenance    4-1
Chapter 4
Maintenance
There is very little involved with the care and maintenance of your DP5500.
However, common sense and periodic maintenance will ensure top
performance.
The lamp, lenses, mirrors, and LCD panels have been carefully aligned at the
factory to give you the clearest, brightest image possible. However, physical
abuse can cause misalignment or damage to the optical elements. Be careful
when you use or handle any of the optical elements.
CLEANING THE LENS
From time to time, youÕll need to clean the lens.
1Take a piece of lens tissue and form it into a loose swab. Wet it with lens
cleaning fluid or denatured alcohol, and gently move it over the lens
surface.
2Take a part of the lens tissue that you havenÕt touched, and repeat the
process, going over the lens in another direction.
CAUTION! Your projector contains electric circuitry and sensitive optics.
Protect it from potential fluid spills. 
						

							4-2    Chapter Four
REPLACING THE LAMP
1Turn off the projector.
2Unplug the projectorÕs power cord from the wall socket and remove it
from the projectorÕs power receptacle.
3Remove the screw on the right side of the rear panel and remove the
service door.
Figure 4-1  Removing the service door
4Unscrew the four lamp assembly screws (they will not come out of the
lamp assembly).
Figure 4-2  Unscrewing the lamp assembly retaining screws 
						

							Maintenance    4-3
CAUTION!  The lamp assembly gets very hot during operation. Use
appropriate care when changing lamps. Make sure that the lamp assembly
has cooled for at least three to five minutes before touching it.
5Grasp the rear of the lamp assembly and firmly pull the assembly out.
Figure 4-3  Removing the lamp assembly
6Replace the old lamp assembly with a new one, carefully aligning the
power pins on the bottom, and pressing it firmly into place. When it is
properly placed, a small alignment mark etched on the projector chassis
will be visible below the lamp assembly.
7Tighten the four lamp assembly retaining screws.
8Replace the service door and screw it into place.
9Replace the power cord. 
						

							4-4    Chapter Four
CLEANING THE AIR FILTER
You should change or clean the air intake filter after every 250 operating
hours to maintain proper cooling. This filter is located on the bottom of the
projector, under the grill.
1Disconnect all cables and cords from the projector.
2Turn the projector on its side, connector panel down.
3Remove both screws on the filter cover.
Figure 4-4  Removing the screws on the air filter cover
4Press up on the air filter cover tab to release the cover latch and then pull
the grill cover down and out (see Figure 4-5).
Figure 4-5  Removing the air intake filter grill 
						

							Maintenance    4-5
5After you have disassembled it, clean the air filter using a vacuum cleaner.
If it is still dirty, wipe the air filter with a moist cloth, then wipe it with a
dry cloth.
Figure 4-6  The components of the air filter
6Reassemble and reinstall the air filter.
CHANGING THE REMOTE CONTROLÕS BATTERIES
If the remote control is not going to be used for awhile, remove the batteries
from the unit. If the remote control does not appear to be working properly,
replace the batteries.
To install or change the two AAA alkaline batteries in the remote control
unit:
1Locate the battery compartment at the lower rear of the case. Slide the
cover off of the battery compartment.
2Insert new batteries as illustrated inside the battery compartment.
3Replace the cover.
CAUTION!  Do not:
¥ Use batteries not specified for this unit.
¥ Use old and new batteries together.
¥ Insert batteries incorrectly. 
						

							Troubleshooting    5-1
Chapter 5
Troubleshooting
WHERE TO GET HELP
If you need help:
1Check the Troubleshooting Chart.
2Call your dealerÕs technical support line and explain your problem.
3Call Proxima at:
USA. and Canada:
(619) 457-5500. Press 1 for Customer Service.
(619) 457-8542 (Fax)
Outside USA and Canada:
(619) 457-5500. Press 1 for Customer Service.
(619) 622-0173 (Fax)
Europe:
+31-43-358 5200
+31-43-358 5201 (Fax)
Internet (WorldWide Web)
http://www.prxm.com (Click Customer Service.) 
						

							5-2    Chapter Five
Projector
PROBLEM LIKELY CAUSE POSSIBLE SOLUTION(S)
No image projectedNo power to projector. Turn power ON.
Check AC cord.
Check power to electrical outlet.
Lamp not on. Turn lamp ON.
Lamp burned out. Replace lamp assembly.
Over temperature indication. Allow projector to cool; turn
projector OFF and then ON.
Make sure the bottom air filter
door is closed.
No computer imageLoose cable. Check and secure cable
projectedconnections.
No power to computer. Turn on computer.
Incompatible video system. If possible check computer with
another monitor.
No video imageVideo source(s). Check power on the video
projectedsource(s).
Loose cable. Check and secure cable
connections between video
source and projector.
LAMP indicatorBurned-out lamp. Replace lamp assembly.
glowing red
Displayed imageProjector set at an Adjust relative positions of
not squareimproper angle to projector and screen.
(keystoning)projection screen.
Projected imageProjection lens not focused. Adjust the lens focus.
out of focus
Projected imageZoom lens not adjusted Adjust zoom lens, or move
larger than screenproperly, or projector too  projector closer to screen.
far from screen. 
						

							Troubleshooting    5-3
PROBLEM LIKELY CAUSE POSSIBLE SOLUTION(S)
Projected imageZoom lens not adjusted Adjust zoom lens or move
smaller than screenproperly, or projector too projector away from screen
 close to screen. screen.
Image off-centerH. or V. POSIT adjusted Adjust H. and/or V. POSIT; if
incorrectly. image will not center, check for
compatibility problems.
Compatibility problem. Verify projector is image
compatible with one of the
standards listed in Appendix A.
Misalignment or damage to Projector requires service.
optical elements.
No image on theProjector power is off or Computer must be on for
computer screenprojector is not running. computer monitor to display.
Lamp is burned out. Turn off projector.
Replace lamp.
Cable not connected. Connect cable.
Streaks on monitorVideo cable plugged into Check cable connections and
the computer or projector projector.
is upside down.
Faint screenLow intensity. Adjust BRIGHT (brightness)
and CONTRAST settings.
Jittery, fuzzy lettersOut of sync. Adjust H. PHASE setting.
Cannot get entireCompatibility problems. Verify projector is image
image on screen;compatible.
scrambled image
ÒShimmeringÓ colorsH. PHASE or BRIGHT setting Adjust H.PHASE or BRIGHT
out of adjustment. (brightness) settings.
Colors weak inWeak video signal. Check for faulty video source,
video mode NTSC,bad connection, or frayed
PAL, or S-VHScable.
COLOR setting may be Adjust color setting.
too low. 
						

							5-4    Chapter Five
PROBLEM LIKELY CAUSE POSSIBLE SOLUTION(S)
Getting excessiveCONTRAST setting is Adjust CONTRAST setting, then
white or washouttoo high. adjust BRIGHT (brightness)
in NTSC, PAL, orsetting.
S-VHS mode
No audioAudio source(s). Check audio source(s) for
power ON and proper operation.
Loose/improper cable. Check and secure cabling
between audio source(s) and
projector.
TEMPAir vent(s) clogged. Allow projector to cool; clear
indicatorobstructions from vents
Clean or replace filter as
necessary.
Internal fan failure. Allow projector to cool;
Check for fan and blower
operation, service if necessary.
Bottom air filter door Close bottom air filter door.
is open.
Remote ControlBatteries upside-down or old. Check battery placement or
doesnÕt work replace with new batteries.
Projector IR receiver window Remove object obstructing red
is blocked. IR receiver on front of projector.
Out of range. Move within 20 ft. and within a
30° angle from the front of the
projector.
Remote ControlSerial cable not connected. Connect cable.
wont work as
mouse control
Wrong mouse driver installed. Use Microsoft serial mouse
driver.
Projector powered up out Power up projector, connect
of sequence. cable, and power up computer. 
						

							Troubleshooting    5-5
RETURNING YOUR DP5500 FOR REPAIR
If the DP5500 or any of its accessories are determined to be defective:
1Contact Proxima Customer Service to request a Return Material
Authorization (RMA) number.
2Send the defective unit, including any accessories, cables, and the remote
control, with the RMA number clearly marked on the outside of the
shipping box, freight prepaid, to:
USA and Canada: Europe:
Proxima Corporation Proxima Corporation
RMA # RMA #
9440 Carroll Park Drive Horsterweg 24
San Diego, CA 92121 6191 RX Beek
The Netherlands
3Pack the projector in its original box for safe shipment (include all
accessories, cables, and the remote control). If you no longer have the
original shipping materials, contact Proxima Customer Service for
packaging.
ORDERING PARTS
Please order replacement and accessory parts through your local reseller, or
call Proxima at:
USA and Canada: Europe:
(800) 447-7694 or +31-43-358 5200
(619) 457-5500 +31-43-358 5201 (Fax)
    Press 1 for Customer Service
Fax: (619) 457-8542
Outside USA and Canada:
(619) 457-5500
    Press 1 for Customer Service
Fax: (619) 622-0173