BenQ Ob8140/pb8240/pb8250 Digital Projector Installation Series Users Manual

							Operation 35
5. PIP (Picture In Picture) Menu
Your projector is capable of displaying images simultaneously from two input sources, which 
enhances your presentation in a more effective way.
These functions are available only when the input source is PC and the PIP source is Video 
or S-Video.  
FUNCTIONDESCRIPTION
PIP SourceSelects the source for the PIP.
PIP Size
Press the 3 / 4 keys to scroll through the four alternatives: Off, Small, 
Medium, Large. 
 When the resolution of the PC signal is 1280 x 1024 (SXGA), the
selected Large PIP size will be reduced to the Medium size.
PIP Position
Selects a desired position for the PIP.  
H PositionAdjusts the horizontal position of the PIP image. 
V PositionAdjusts the vertical position of the PIP image.
More OptionsPress the 3 / 4 keys to select more PIP functions including Brightness, 
Contrast, Color, Tint, Sharpness and System. 
BrightnessAdjusts the brightness of the PIP image.
ContrastAdjusts the degree of difference between dark and light in the PIP image. 
The higher the value, the greater the contrast. 
ColorIncreases or decreases the color intensity of the PIP image.
TintAdjusts the color tones of the PIP image. The higher the value, the more 
reddish the image becomes. The lower the value, the more greenish the 
image becomes.
SharpnessAdjusts the image to make it appear sharper or softer
SystemShows Video input system format, NTSC, PAL, SECAM or YUV. 
						

							Maintenance 36
Maintenance
Your projector needs little maintenance. Things you have to do on a regular basis are keep 
the lens clean and clean the air filter to prevent overheating.
Never remove any parts of the projector except the lamp and air filter. Contact your dealer if 
other parts needs replacing.
Cleaning the lens
Clean the lens whenever you notice dirt or dust on the surface. 
Q Use a canister of compressed air to remove dust. 
Q If there is dirt or smears, use lens-cleaning paper or moisten a soft cloth with lens cleaner to 
gently wipe the lens surface.
Never rub the lens with abrasive materials.
Cleaning the projector case
Before you clean the case, turn the projector off and unplug the power cord.
Q To remove dirt or dust, wipe the case with a soft, dry, lint-free cloth.
Q To remove stubborn dirt or stains, moisten a soft cloth with water and a neutral detergent. 
Then wipe the case.
Never use wax, alcohol, benzene, thinner or other chemical detergents. These can damage the
case.
Cleaning and replacing the air filters
It is necesssary to clean the air filters periodically. If the filters are not cleaned, they can 
become clogged with dust and prevent proper ventilation. This can cause overheating and a 
malfunction of the projector.
A warning message like the one pictured to the 
right will be displayed for 10 seconds every 300 
hours to remind you to clean the filters.
1. Turn the project off and wait until the fans 
stop running.
2. Disconnect the projector from any cables.
3. Open one air filter cover from the left and draw another one from the front sides of the 
projector.
From the front side:From the left side: 
						

							Maintenance 37 4. Use a small vacuum cleaner designed for computers 
and other office equipment to clean the filters. Or 
use a soft brush (such as a clean artist’s paintbrush) 
to gently sweep the dust away.
If the dirt is difficult to remove or the filters are 
broken, contact your place of purchase to replace 
them.
5. Replace the filters then press the covers back until 
they click into place.
If the covers are not correctly seated in place, you 
will be reminded by a message displayed on the 
screen every three minutes. The projector will 
automatically shut down after 10th minutes if there 
has been no further action taken. Re-install the 
filters securely, then turn on the power again.
Storing the projector
If you need to store the projector for an extended time, please follow the instructions below.
Q Make sure the temperature and humidity of the storage area are within the recommended 
range for the projector. Please refer to the Spec. page in the manual or consult your dealer 
about the range.
Q Retract the adjuster feet.
Q Remove the batteries from the remote control.
Q Pack the projector in its original packing or equivalent.
Transporting the projector
It is recommended that you ship the projector with its original packing or equivalent. When 
you carry the projector yourself, please use the provided soft carry case. 
						

							Maintenance 38
Lamp Information
Use and Replacement of the Lamp
When the Lamp Indicator lights up red or a message appears suggesting it is time to replace 
the lamp, please install a new lamp or consult your dealer. An old lamp may cause a mal-
function in the projector and in some instances the lamp may explode.
For more detailed information on the warning indicators, please refer to page 40.
The Lamp indicator light and Temperature warning light will light up if the lamp becomes too
hot. Turn the power off, allow the projector to cool down before checking that the Air Filters
are not clogged (page 36). If the Lamp or Temp indicator still lights up after turning the power
back on, please contact your dealer.
The following Lamp warning displays will remind you of the lamp condition.
Lamp Replacement
To reduce the risk of electrical shock, always turn the projector off and disconnect the power
cord before changing the lamp.   
To reduce the risk of severe burns, allow the projector to cool for at least 45 minutes before
replacing the lamp.
To reduce the risk of injuries to fingers and damage to internal components, use caution when
removing lamp glass that has shattered into sharp pieces.
MessageStatus
The lamp has been in operation for 1980 hours. Install 
a new lamp for optimal performance. If the projector is 
normally run with Preset Economic Mode selected 
(page 34), you may continue to operate the projector 
until the 2980 hour lamp warning appears.
The lamp has been in operation for 2980 hours, the 
power will shutdown in 20 hours time. A new lamp 
should be fitted to avoid the inconvenience when the 
projector runs out of lamp time.
The lamp has been in operation for over 3000 hours. 
This message will flash in the center of the screen 
together with the Lamp indicator lighting up red for 40 
seconds. The projector will shutdown after 40 seconds. 
The lamp MUST be replaced before the projector will 
operate normally.  
						

							
Maintenance 39
To reduce the risk of injuries to fingers and/or compromising image quality by touching the
lens, do not touch the empty lamp compartment when the lamp is removed.
This lamp contains mercury. Consult your local hazardous waste regulations and dispose of
this lamp in the proper manner.
Step 1. Turn the power off and disconnect the projector from the wall socket.
Step 2. Turn the projector over. Then loosen the 
screws and remove the lamp cover. If the 
lam p is  h ot, avoid bur ns  by  waitin g for 45 
minutes until the lamp has cooled.
Step 3. Loosen the screw that fixes the lamp to the  projector. If the screw is not loosened 
completely, you could injure your fin-
gers. It is strongly recommended that you 
use a magnetic-head screwdriver.
Step 4. Lift the handle so that it stands up. Use the  handle to slowly pull the lamp out of the 
projector.
Pulling too quickly may cause the lamp to break
and scatter broken glass in the projector.
Do not place the lamp in locations where water
might splash on it, children can reach it, or near
flammable materials.
Do not insert your hands into the projector after
the lamp is removed. If you touch the optical com-
ponents inside, it could cause color unevenness and distortion of the projected images.
Step 5. Insert the new lamp. Make sure the handle is fully locked and tighten the screw firmly.
A Loose screw may cause a bad connection, which could result in malfunction.
Do not over tighten the screw.
Step 6. Re-install the lamp cover and tighten the screw. Do not turn the power on with the 
lamp cover removed.  Whenever the lamp 
is replaced, reset the total lamp operation 
timer.  Do not reset if the lamp is not 
replaced as this could cause damage.  
						

							Maintenance 40Step 7. Reset the lamp counter  
i. Press and hold Exit on the projector 
for 3 seconds to display the total used 
lamp time.
ii. Press Menu on the projector or on 
the remote control to access the lamp 
hour timer. An adjustment message 
will appear.
iii. Press W or X to reset lamp hours 
and press EXIT to leave.
Te m p  Wa r n i n g  L i g h t
When the Temperature warning light is on, it is warning you of the following possible prob-
lems:
1. The internal temperature is too high.
2. Air Filters are clogged.
3. The fans are not working.
Turn the projector off , check that the air filters are clean. If the problem persists, contact 
qualified service personnel for further help.
For more detailed information, please refer to the following section.
Indicators
Illustration - table legend.
1.Blank - : Light OFF
2.  : Light flashing
3.  : Light ON
4.
O : Orange light
5.
R : Red light
6.
G : Green light 
  
   
						

							Maintenance 41
LEDStatus & Description
PowerTe m pLamp
Power events
The projector has just been connected to a power outlet.
--
Stand-by mode.
--
(1) The projector needs 90 seconds to cool down as it was 
abnormally shut down without the normal cooling down 
process. Or
(2) The projector needs to cool for 90 seconds after the power 
is turned off.
--
The Power indicator lig ht is flashing during powering up.
--
The projector is under normal operation.
Lamp events
---The lamp counter has developed a problem.
--
It is warning you that lamp usage has exceeded 3000 hours. 
Replace the projection lamp with a new one immediately.
--The lamp is not properly attached or the lamp is damaged. 
Please contact your dealer for assistance.
Thermal events
--The projector has shutdown automatically. If you try to re-
start the projector, it will shutdown again. Please contact your 
dealer for assistance.
-
The projector has shutdown automatically. If you try to re-
start the projector, it will shutdown again. Please contact your 
dealer for assistance.
-
The projector has shutdown automatically. If you try to re-
start the projector, it will shutdown again. Please contact your 
dealer for assistance.
-
The projector has shutdown automatically. If you try to re-
start the projector, it will shutdown again. Please contact your 
dealer for assistance.
O OO
O 
O 
 G 
 G 
 R
 R
 R
 R G
 R G
 G  R 
						

							Maintenance 42The projector has shutdown automatically. If you try to re-
start the projector, it will shutdown again. Please contact your 
dealer for assistance.
The projector has shutdown automatically. If you try to re-
start the projector, it will shutdown again. Please contact your 
dealer for assistance.
-
The projector has shutdown automatically. If you try to re-
start the projector, it will shutdown again. Please contact your 
dealer for assistance.
The projector has shutdown automatically. If you try to re-
start the projector, it will shutdown again. Please contact your 
dealer for assistance.
The projector has shutdown automatically. If you try to re-
start the projector, it will shutdown again. Please contact your 
dealer for assistance.
The projector has shutdown automatically. If you try to re-
start the projector, it will shutdown again. Please contact your 
dealer for assistance.
 G  R  G
 G  R  G
O  R 
O  R  G
O  R  G
 R  G  R 
						

							
Maintenance 43
Service Information
Accessories (included in the standard package) 
Optional Accessories (not included in the standard package)  
Ordering Parts or Getting Information
For product information, product assistance, service information, or to order accessories, 
please visit the BenQ Corporation website at http://www.BenQ.com.
Description   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Part Number
Power cord (US)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27.01818.000
Power cord (EU)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27.82718.281
Power cord (UK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27.01018.000
VGA cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   50.J0508.503
Video cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   50.J1303.501
S-Video cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50.72920.011
RCA R/W audio cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   50.J1311.001
PC - PC audio cable  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50.L4302.501
Soft carry case  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47.J8104.001
Component Video cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50.J2401.001
USB mouse cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50.73213.501
Remote control  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56.26J95.001
3-2 power converter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22.91008.001
D-Sub - DVI cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   50.J2103.501
Description of parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Part number  
Mac adapter (switchable)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.20118.A15
300W lamp module   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   60.J8106.001
250W lamp module   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   59.J9421.CG1
Ceiling mount kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   60.J7683.001
Wireless Pro (EU). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   59.J8201.001
Wireless Pro (US) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   59.J8201.002
Presentation Pro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   60.J2278.001
DVI-I cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   50.J2508.501 
						

							Troubleshooting 44
Troubleshooting
Common Problems & Solutions
THE PROJECTOR DOES NOT TURN ON.
NO PICTURE   
BLURRED IMAGE
REMOTE CONTROL DOES NOT WORK
  
CauseRemedy
There is no power from the power 
cable.Plug the power cord into the AC inlet on the 
projector, and plug the power cord into the 
power outlet. If the power outlet has a switch, 
make sure that it is switched on.
Attempting to turn the projector on 
again during the cooling process.Wait until the cooling down process has 
completed.
CauseRemedy
The video source is not turned on or 
connected correctly.Turn the video source on and check that the 
signal cable is connected correctly.
The projector is not correctly 
connected to the input source device.Check the connection.
The input signal has not been 
correctly selected.Select the correct input signal with the Source 
key on the projector or remote control.
The lens cap is still attached to the 
lens.Remove the lens cap.
CauseRemedy
The projection lens is not correctly 
focused.Adjust the focus of the lens using the focus 
ring.
The projector and the screen are not 
aligned properly.Adjust the projection angle and direction as 
well as the height of the unit if necessary.
The lens cap is still attached to the 
lensRemove the lens cap.
CauseRemedy
The batteries are out of power. Replace both of the batteries with new ones.
There is an obstacle between the 
remote control and the projector.Remove the obstacle.
You are too far away from the 
projector.Stand within 6 meters (19.5 feet) of the 
projector.