LG Bx401c DLP Projector User Manual

							Names of parts
11
Accessories
Optional Extras 
POWER
MENU
SOURCE
EXIT
AUTO
STILLOK
LASERRATIOZOOM
MODE
TIMERBLANKW.PEAKKEYSTONEGAMMA
  LAMP
SLEEP
* Contact your dealer to purchase these items.
* Contact your service personnel for replacing of lamp.
* The lamp is consumable and needs to be replaced with a new one when it is burned out.
* Optional parts can be changed without notice to improve the quality of the product, and new optional parts can be added.Remote Control
Power Cord 
Video Cable
HDMI to DVI Cable
Owner’s manual
Computer Cable
Lamp  Projection Screen 
1.5V1.5V
2 Batteries
Ceiling installer for projector
Component CableCD Owner’s manual
Lens cap and Strap
RS-232C CableRCA to D-Sub Adapter
HDMI Cable 
						

							Installing and Composition
12
Installing and Composition
Provide proper ventilation for this projector.
The projector is equipped with ventilationholes(intake)
on the bottom and ventilation holes(exhaust) on the front.
Do not block or place anything near these holes, or inter-
nal heat build-up may occur, causing picture degradation
or damage to the projector.
Place this projector in adequate temperature and humidity conditions.
Install this projector only in a location where adequate temperature and humidity is available. (refer p.41)
Do not place the projector on a carpet, rug or other
similar surface. It may prevent a adequate ventila-
tion of the projector bottom. This product should be
mounted to a wall or ceiling only.
*Don’t place the projector in the following conditions. It may cause malfunction or product damage.
Never push projector or spill any kind of liquid into the
projector.Leave an adequate distance(30cm/12 inches or
more) around the projector.
Don’t place the projector where it can be covered with dust.
This may cause overheating of the projector.
Do not obstruct the slots and openings of the projector. This may cause overheating and create a fire
hazard.
The projector is manufactured using high-precision technology. You may, however, see tiny black points
and/or bright points (red, blue, or green) that continuously appear on the projector Screen. This is a nor-
mal result of the manufacturing process and does not indicate a malfunction.
To display DTV programs, it is necessary to purchase a DTV receiver (Set-top Box) and connect it to the
projector.
Installation Instructions
When the remote control does not work during operation.
The remote control may not work when a lamp equipped with electronic ballast or a three-wavelength lamp is installed.
Replace those lamps with international standard products to use the remote control normally. 
						

							Installing and Composition
13
1. Place the projector on a sturdy and horizontal surface with the PC or AV source.
2. Place the projector with the desired distance from the screen. The distance between the projector and the screen
determines the actual size of the image. 
3. Position the projector so that the lens is set at a right angle to the screen. If the projector is not set at a right angle, the
screen image will be crooked. If this is so then the keystone adjustment may correct this (Refer to page 27.).
4. Connect the cables of the projector to a wall power socket and other connected sources.
projection distance based on the picture format
Projection distance (D)Projection off-set ratio:100%
100mm
Projection distance (D)
Basic Operation of the Projector
* The longest/shortest distance
show status when adjusted by
the zoom function. Screen
Screen height (X)
X/2
X/2
Y/2
Y/2
Screen
Screen Width (Y)
4 : 3 Scale
Image Projection Distance
Diagonal Size
(inch)Diagonal Size
(mm)Horizontal Size
(mm)Vertical Size
(mm)Wide Distance
(mm)Tele Distance
(mm) 
						

							Installing and Composition
14
The projector has a ‘Kensington’Security System Connector on the side panel. Connect the ‘Kensington’
Security System cable as below.
For the detailed installation and use of the Kensington Security System, refer to the user’s guide attached
to the Kensington Security System set. 
And for further information, contact http://www.kensington.com, the internet homepage of the
Kensington company that deals with expensive electronic equipment such as notebook PCs or projec-
tors.
 Kensington Security System is an optional item.
Using Kensington Security System 
						

							Installing and Composition
15
* Do not disconnect the power cord during the suction/discharge fan in operation. If the power cord is disconnected during the
suction/ discharge fan in operation, it may takes longer to activate the lamp after turning on the power and the lifespan of the
lamp may be shortened. 
Turning on the Projector
Turning off the Projector
1. Connect power cord correctly.
2. Remove the lens cap. If it is left on, it could become deformed due to the heat produced by
the projection lamp.
3. Press the POWERbutton on the remote control or top cover.
(Green operation indicator flashes if lamp is in start-up cycle.)
An image will appear after the operation indicator light turns (Green).Select the source mode with the SOURCE button.
1. Press the POWERbutton on the top cover or remote control.
2. Press the POWERbutton on the top cover or remote control again to turn off the power.
3. If the operation indicator LED is orange and blinking, do not disconnect(10 sec.) the supply until
the operation indicator LED is lit constantly (orange).
If the operation indicator LED is  orange and blinking, the power button on the top cover or on the remote control will not 
operate.
This projector features the Quick Power On/Off function that allows a user to turn it on and off quickly.
Power off? 
Please press Power key again.
* What is the Quick Power On/Offfunction?
The projector enters into Standby mode without waiting it is cooled.
If Standby mode continues for a certain amount of time, the projector can operate without cooling when it is turned on. 
						

							Installing and Composition
16
1. While pressing the foot adjusting button, raise or lower the projector to place the screen image in the proper position.
2. Release the button to lock the foot in its new position.
3. Turn the foot at the back left or right to make a fine tune of the length of the projector. 
After raising the front foot, do not press down on the projector.
When an image appears on the screen, check if it is in focus and fits well to the screen.
To adjust the focus of the image, rotate the focus ring which is the outer ring on the lens.To adjust the size of the image, rotate the zoom ring which is the inner ring on the lens.
When a signal cable is plugged in and there ’s a signal,the selecting item is activated as white,and if there ’s no signal,the selecting item 
is deactivated as gray.
If pressing the input selection button,it is possible to select activated item.It is possible to watch by selecting RGB 1 for Component 1 input and RGB 2 for Component 2 input,and in case of Component,even 
though there ’s an input signal,the OSD item is not activated.
Focus ring Zoom ring
Focus and Position of the Screen Image
Selecting source mode
1. Press the SOURCEbutton on the remote control or the control panel.
2. After moving into desiring input by pressing *,*button,please press the confirm button.
To raise or lower the image on the screen, extend or retract the foot at the bottom of the projector
by pushing foot adjusting button as below.
MENUExit                 OK
RGB1
RGB2
HDMI
Video 
						

							Connection
17
Connection
Connecting to a Desktop PC
* You can connect the projector to a computer of VGA, SVGA, XGA and SXGA output. 
* Refer to page 40 for the supported monitor displays of the projector.
* You can select an RGB input from the Monitor Out menu that will be output to RGB OUT(RGB1 or RGB2).

Connect the RGB IN-1of the projector and the computer output
port with computer cable.
* You can also connect to the RGB IN-2 port.
Connecting to a Notebook PC
< How to connect >
Connect the RGB IN-1of the projector and the computer output
port with computer cable.
* If you set your computer to output the signal to both the display
of your computer and the external projector, the picture of the
external projector may not appear properly. In such cases, set
the output mode of your computer to output the signal only to
the external projector. For details, refer to the operating instruc-
tions supplied with your computer.
* You can also connect to the RGB IN-2 port.
Computer Cable
Computer Cable

Please connect projector ’s HDMI IN terminal and computer ’s
output terminal by using HDMI to DVI cable.
HDMI to DVI Cable 
						

							Connection
18
Connecting to a Video Source
< How to connect >
a. Connect the Video input jacks of the projector to the output
jacks of the A/V source with Video cable.
S VIDEO
(R) AUDIO (L)       V I D E O
OUT
IN
* You can connect a VCR, a camcorder or any other compatible video image source to the projector.
HDMI Cable
Connecting to a D-TV Set-Top Box
< How to connect a HDMI source >
a. Connect the HDMI INterminal of the projector to the HDMI
output terminal of the D-TV Set-Top Box via HDMI cable.
b. Use a DTV receiver with DTV 480p(576p)/720p/1080i mode.
*No support of audio.
(R) AUDIO (L) DTV OUTPUTDVI OUTPUTPRPBYHDMI OUTPUT
* To receive D-TV programmes, it is necessary to purchase a D-TV receiver (Set-Top Box) and connect it to the projector. 
* Please refer to the owners manual of the D-TV Set-Top Box for the connection between projector and D-TV Set-Top Box.
Component cable< How to connect a Component source >
a. Connect the D-TV Set-Top Box Component cable to the 
RCA to D-Sub Adapterand then connect the RCA to D-
Sub Adapterto RGB IN-1of the projector.  
* When connecting the component cable, match the jack colors 
with the component cable.(Y=green, PB=blue, PR=red)
* You can also connect to the RGB IN-2 port.
* 
No support of audio.
(R) AUDIO (L) DTV OUTPUTDVI OUTPUTPRPBYHDMI OUTPUT


Connecting to a DVD
< How to connect >
a. Connect the DVD Component cable to the RCA to D-Sub 
Adapterand then connect the RCA to D-Sub Adapterto 
RGB IN-1of the projector.  
* When connecting the component cable, match the jack colors
with the component cable.(Y=green, PB=blue, PR=red)
* You can also connect to the RGB IN-2 port.PRPBY(R) AUDIO (L) 
* The output jacks (Y, PB, PR) of the DVD might be labeled as Y, Pb, Pr / Y, B-Y, R-Y / Y, Cb, Cr according to the equipment.

Component cable
Signal
480i
480p
720p
1080i
576i
576pComponent
O
O
O
O
O
O 
						

							Function
19
Function
Video Menu Options
* In this manual, the OSD(On Screen Display) may be different from your Projector’s because it is just an example to
help with the Projector operation.
* This operating guide explains operation of RGB(PC) mode mainly.
1. Press the MENUbutton and then use ,button to select the  menu.
2. Press the 
,button to select a video item you want to adjust.
3. Press the 
,button to adjust the screen condition as you want.
< RGB mode >
< Video mode >
Each adjustment of       menu options will not affect other inputs. When receiving an NTSC signal, the picture item Tintis displayed and can 
be adjusted.(60Hz only)
 You can adjust contrast by pressing the  button on the remote control.
 You can adjust brightness by pressing the  button on the remote control.Press the MENUbutton twice or the EXITbutton to exit the menu screen.
Adjusting Video 
1. Press the MODEbutton on the remote control.
2. Press the 
,button to adjust the screen condition as you want.
Picture mode
* Use Picture mode function to set the projector for the best picture appearance.
Each press of the, button changes the screen as shown below.
 You can use this function through the MENUbutton. To exit the menu display, press the EXITbutton.
Picture mode
Contrast 50
Brightness 50
Sharpness 50
Color R 50
Color G 50
Color B  50Normal
MENU Exit              Move          OK
Picture mode
Contrast               80
Brightness            50
Color                    50
Sharpness            50
Tint                                0Normal
MENU Exit              Move          OK
NormalPresentationSports
UserFilm
BrightGolfGame 
						

							Function
20
1. Press the MENUbutton and then use ,button to select the         menu.
2. Press the  
,button to selectColor temp.item.
3. Press the 
,button to make desired adjustments.
Color Temperature Control
Each press of the , button changes the screen as shown below.
 This function can be inactivated depends on the Picture mode. When the Picture
mode is set in Bright or Golf, you can’t adjust Color temperature function.
 Press the MENUbutton twice or the EXITbutton to exit the menu screen. Natural
CoolMedium
- To initialize values (reset to default settings), select the Naturaloption.
1. Press the GAMMAbutton on the remote control.
2. Press the 
,button to select the screen condition you want.
Gamma Function
Each press of the , button changes the screen as shown below.
 You can use this function through the MENUbutton. To exit the menu display, press the EXITbutton.
1. Press the MENUbutton and then use ,button to select the         menu.
2. Press the  
,button to selectGamma curve shiftitem.
3. Press the OKbutton.
4. When the window below appears, press 
,button to move between the
items and the 
,buttons to adjust the screen as you want.
Gamma curve shift Red, Green, Bluecan be adjusted between -20 and 20.Press the MENUbutton twice or the EXITbutton to exit the menu screen.
Gamma curve shift Function
- This function shifts the gamma curves for Red, Green and Blue individually to
adjust brightness.Warm
Color temp.
Gamma
Gamma curve shift
Brilliant color 
TM
White peaking 10
Expert Color
Reset
Natural
Normal
On
MENU Prev.        Move            Select
Color temp.
Gamma
Gamma curve shift
Brilliant color 
TM
White peaking 10
Expert Color
Reset
Natural
Normal
On
MiddleHighMaximum
LowCinema
Gamma Curve Shift Red      0
Gamma Curve Shift Green   0
Gamma Curve Shift Blue 0
Reset
Prev.            Move              Adjust
MENU Prev.          Move            OK
Press OK Key