Compaq IPAQ Microportable Projector MP4800 Users Guide

							Compaq iPAQ Microportable Projector MP4800 User’s Guide8–1
8
Troubleshooting
Troubleshooting
Problem Solutions
Image does not appear on the 
projection screen 1. Make sure the projector is 
powered on.
2. Ensure the lens cap has been 
removed.
3. Press the 
Standby button again.
4. Ensure that the power cable is 
securely connected.
5. Ensure the pins on the connectors 
are not crooked or broken.
6. Turn off or disable the notebook or 
desktop computer screen saver 
function.
7. Ensure the projector lamp has been 
securely installed.
8. Ensure your notebook computers 
external video port is turned on. 
To g g l e  t h e  
Fn + F4 function keys.
Activate CRT/LCD “ON” at the 
same time. To identify any alternate 
function keys to be used, refer to 
your notebook computer’s user 
manual.
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							8–2Compaq iPAQ Microportable Projector MP4800 User’s Guide
Troubleshooting
Scrolling, cut-off, or incorrect 
image displayed1. Press the Resync button.
2. Turn everything off, then power on 
the projector first and power on the 
notebook or desktop computer 
second.
3. If the above steps do not correct the 
display image, adjust the resolution 
of the notebook or desktop 
computer to 1024 x 768.
4. Access the OSD and ensure the 
Zoom mode is set to 1. For more 
information on using the OSD, refer 
to Chapter 3, “Using the On-Screen 
Display Menu.”
Image is flickering or unstable Press the 
Resync button on the 
projector panel to adjust the tracking. If 
that does not stop the flickering, adjust 
the Clock Phase function in the Image 
Control menu.
Troubleshooting (Continued)
Problem Solutions
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							Troubleshooting
Compaq iPAQ Microportable Projector MP4800 User’s Guide8–3
Notebook computer or iPAQ 
Pocket PC screen is not displaying 
the presentationNotebook computer:
Most notebook computers have a 
monitor loop-through or simultaneous 
viewing function. Press the 
Fn + F4 
function keys on the notebook computer 
to switch the image from the notebook 
screen to the projection screen or to 
toggle through the following three 
options:
1. LCD: Output displays only on the 
notebook screen.
2. CRT: Output displays only on the 
projection screen.
3. CRT/LCD: Output displays on the 
notebook screen and the projection 
screen.
Activate CRT/LCD “ON” at the same 
time. To identify any alternate function 
keys to be used, refer to your notebook 
computer’s user manual.
Mac PowerBooks:
1. To control video mirroring, click 
Control Panel > Display, then set 
Video Mirroring to ON for both 
internal and external viewing.
2. Set Video Mirroring OFF for image 
on external monitor only or internal 
only, depending on monitor 
selection in Monitors.
Troubleshooting (Continued)
Problem Solutions
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							8–4Compaq iPAQ Microportable Projector MP4800 User’s Guide
Troubleshooting
Image is out of focus 1. Adjust the Focus Ring on the 
projection lens.
2. Make sure the projection screen is 
within the required distance (3.7 to 
40.7 feet, 1.1 to 12.4 meters) from 
the projector.
3. Check the projection lens to see if it 
needs cleaning. Follow the 
“Cleaning the Lens” procedures in 
Chapter 7 to clean the lens.
Projected colors do not match 
computer or camcorder color1. Adjust the Brightness, Contrast, or 
Color functions in the on-screen 
display menu. Refer to Chapter 3, 
“Using the On-Screen Display 
Menu” for more information.
2. Make sure the pins on the cable 
connectors are not bent or broken.
Black or gray border visible outside 
the usable area of the projection 
screenThe black border surrounding the active 
area of the projection screen is part of 
the total projected image; however, it is 
an inactive area and cannot display any 
part of the image. This black border 
reduces the amount of extraneous light, 
producing a cleaner, sharper image.
When the projector is in HDTV 
mode, the colors are incorrectAccess the on-screen display menu, 
select A/V & HDTV Control, select Color 
Space, then change to the correct color 
space. Refer to Chapter 3, “Using the 
On-Screen Display Menu” for more 
information.
Troubleshooting (Continued)
Problem Solutions
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							Troubleshooting
Compaq iPAQ Microportable Projector MP4800 User’s Guide8–5
Only the Compaq startup screen 
displays1. Check that the cables are 
connected securely.
2. Verify that the proper input source 
is connected.
3. Make sure your notebook 
computer’s external video port is 
activated.
A blue screen displays on the 
projection screen when a 
videocassette recorder, DVD 
player, or other video source is 
connected to the projector1. Check the Play or TV/Video buttons 
on the video source.
2. If that does not work, refer to the 
owner’s manual that came with the 
video source.
Screen is dimmer than normal The projector is in lamp saver mode. 
Press the lamp saver button on the top 
of the projector to turn lamp saver on or 
off. If the LED is green, lamp saver is on. 
If the LED is not lit, lamp saver is off.
Lamp shuts off 1. If the Standby LED flashes green, 
the projector has overheated and 
will automatically shut down. Wait 
five to ten minutes until the LED 
stops flashing and the 
Standby 
button turns amber before 
restarting the projector again.
2. A minor power surge may cause 
the lamp to shut off. Wait a few 
minutes, then turn it back on.
3. When the lamp has reached the 
end of its life, the system will 
automatically turn off to prevent 
possible lamp rupture. Replace the 
lamp as described in the 
“Replacing the Lamp Module” 
section of Chapter 7.
Troubleshooting (Continued)
Problem Solutions
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							8–6Compaq iPAQ Microportable Projector MP4800 User’s Guide
Troubleshooting
Lamp burns out or makes a 
popping soundWhen the lamp reaches its end of life, it 
will burn out and may make a loud 
popping sound. If this happens, the 
projector will not turn back on until the 
lamp module has been replaced. 
Contact your local Compaq authorized 
dealer, seller, or reseller to purchase a 
replacement lamp module. To replace 
the lamp, follow the procedures in the 
“Replacing the Projector Lamp Module” 
section of Chapter 7.
Projector suddenly shuts down and 
the power button LED blinks rapidlyAn over-temperature event has been 
detected. This usually occurs when 
either the airflow to the unit has been 
obstructed or a fan has failed. If airflow 
is obstructed, remove the obstruction, 
unplug the projector, re-plug the 
projector, and restart. If a fan has failed 
or an over-temperature event occurs a 
second time, have the projector 
serviced or repaired.
Speaker does not operate 1. Make sure the audio cable is 
correctly connected to the projector 
and the audio source.
2. Make sure the audio source is 
operating properly.
3. Make sure the 
Mute button on both 
the remote control and the audio 
source is off.
Troubleshooting (Continued)
Problem Solutions
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							Troubleshooting
Compaq iPAQ Microportable Projector MP4800 User’s Guide8–7
Remote control does not operate 1. Ensure the remote control is 
pointed at the sensor and is within 
21.0 feet (6.4 meters) of the 
projector.
2. The two AAA batteries may need to 
be replaced.
3. Verify that the batteries are 
installed properly.
Remote mouse does not operate 
computerMake sure the USB cable is connected 
to both the computer and the projector.
Compatibility issues with 
equipment attached to the 
projectorContact your Compaq authorized 
service provider or call Compaq 
Customer Support for help. Refer to the 
Worldwide Telephone Numbers booklet 
included in the projector documentation 
kit for a complete list of customer 
support numbers to call.
Image size is too small or too large 1. Adjust the digital zoom or move 
the camera until the image is the 
desired size.
2. The projector may be set to display 
in the center of the display area 
without any expansion. To change 
the setting, access the on-screen 
display menu, select A/V & HDTV 
Control, select HDTV/Video, then 
select how the image should be 
shown in the display area. Refer to 
Chapter 3, “Using the On-Screen 
Display Menu” for more information.
Troubleshooting (Continued)
Problem Solutions
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							8–8Compaq iPAQ Microportable Projector MP4800 User’s Guide
Troubleshooting
The image is upside down or a 
mirror image is displayedThe projector has been set for operation 
in rear screen mode or ceiling mount 
mode. To display the image properly, 
access the on-screen display menu, 
select Image Control, select Flip Image, 
then restore the displayed image to the 
correct setting. Refer to Chapter 3, 
“Using the On-Screen Display Menu” for 
more information.
The desired source is not displayed Press the 
Source button on top of the 
projector to review and select from the 
active video sources.
Troubleshooting (Continued)
Problem Solutions
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							Compaq iPAQ Microportable Projector MP4800 User’s GuideA–1
A
Agency Regulatory Notices
Federal Communications Commission 
Notice
This equipment has been tested and found to comply with the 
limits for a Class B digital device, pursuant to Part 15 of the 
FCC Rules. These limits are designed to provide reasonable 
protection against harmful interference in a residential 
installation. This equipment generates, uses, and can radiate radio 
frequency energy and, if not installed and used in accordance 
with the instructions, may cause harmful interference to radio 
communications. However, there is no guarantee that interference 
will not occur in a particular installation. If this equipment does 
cause harmful interference to radio or television reception, which 
can be determined by turning the equipment off and on, the user 
is encouraged to try to correct the interference by one or more of 
the following measures:
■Reorient or relocate the receiving antenna.
■Increase the separation between the equipment and the 
receiver.
■Connect the equipment into an outlet on a circuit different 
from the circuit that the receiver is connected.
■Consult the dealer or an experienced radio or television 
technician for help.
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							A–2Compaq iPAQ Microportable Projector MP4800 User’s Guide
Agency Regulatory Notices
Modifications
The FCC requires the user to be notified that if any changes or 
modifications are made to this device, not expressly approved by 
Compaq Computer Corporation, this may void the user’s 
authority to operate the equipment.
Cables
Connections to this device must be made with shielded cables 
with metallic RFI/EMI connector hoods to maintain compliance 
with FCC Rules and Regulations.
Declaration of Conformity for Products Marked 
with the FCC Logo-United States Only
This device complies with Part 15 of the FCC Rules. Operation is 
subject to the following two conditions: (1) this device may not 
cause harmful interference, and (2) this device must accept any 
interference received, including interference that may cause 
undesired operation.
For questions regarding your product, contact:
Compaq Computer Corporation
P.O. Box 692000, Mail Stop 530113
Houston, Texas 77269-2000
Or, call 1-800-652-6672 (1-800-OK COMPAQ)
For questions regarding this FCC declaration, contact:
Compaq Computer Corporation
P.O. Box 692000, Mail Stop 510101
Houston, Texas 77269-2000
Or, call (281) 514-3333
To identify this product, refer to the Part, Series, or Model 
number found on the product.
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