LG Bx401c DLP Projector User Manual

Function
31
1. Press the MENUbutton and then use ,button to select the
menu.
2. Press the  
,button to select Horizontalitem.
3. Press the  
,button to make desired adjustments.
Horizontaladjustment range is -50 ~ 50.The variable range can be different depends on input resolutions. Press the MENUbutton twice or the EXITbutton to exit the menu screen.
1. Press the MENUbutton and then use ,button to select the
menu.
2. Press the  
,button to select Verticalitem.
3. Press the  
,button to make desired...

RS-232C
32
External Control Device Setup
SET ID
How to connect external control equipment
* Connect the RS-232C input jack to an external control device (such as a computer) and control the Projector’s functions externally.
1. Press the MENUbutton and then use ,button to select the         menu.
2. Press the OKbutton and then use 
,button to selectSet IDitem.
3. Press the 
,button to select your desired number.
Press the OKbutton to save the selected number.
The adjustment range ofSet IDis 1~99. Only...

RS-232C
33
Command Reference List
* Refer to the detailed information for data with [*] mark.
❑ Communication Protocol
Command1 Command2Data(Hexadecimal)01. Power   k  a 0 ~ 1
02. Aspect Ratio  k  c 1 ~ 2
03. Screen Mute  k  d 0 ~ 1
04. Contrast k  g 0 ~ 64
05. Brightness  k  h 0 ~ 64
06. Color k  i 0 ~ 64
07. Tint  k  j 0 ~ 64
08. Sharpness k  k 0 ~ 64
09. OSD Select k  l 0 ~ 1
10. Remote Control Lock / Key Lock k  m 0 ~ 1
11. Color Temperature k u 0 ~ 3
12. Red ADC gain adjustment j w 0 ~ 64
13. Green...

RS-232C
34
External control device setup
01. Power (Command:ka)
➜To control Power On/Off of the Projector.
T
ransmission
Data 0  : Power Off
1  : Power On 
[k] [a] [  ] [Set ID] [  ] [Data] [Cr]
[k] [a] [  ] [Set ID] [  ] [FF] [Cr]
[a] [  ] [Set ID] [  ] [OK] [Data] [x]
[a] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
Ack
Data 0  : Power Off
1  : Power On 
➜To show Power On/Off status.
T
ransmission
Data 0  : Power Off
1  : Power On
* In like manner, if other functions transmit ‘0xFF’data based 
on this...

RS-232C
35
03. Screen Mute(Command:kd)
➜To select screen mute on/off.
T
ransmission
Data 0  :  Screen Mute Off (Picture On)
1  :  Screen Mute On (Picture Off)
Data 0  :  Screen Mute Off (Picture On)
1  :  Screen Mute On (Picture Off)
[k] [d] [  ] [Set ID] [  ] [Data] [Cr]
[d] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
06. Color (Command:ki)
➜To adjust the screen color. (Video/Component)
T
ransmission
Data Min : 0 ~ Max : 64
*Refer to ‘Real data mapping 1’.
Data Min : 0 ~ Max : 64
[k] [ i ] [  ] [Set ID] [  ]...

Button                   Key code  Button                  Key code 
RS-232C
36
14. Blue ADC gain Adjustment (Color B)
(Command:jz)
➜Adjust the Blue gain of ADC part.(RGB)
T
ransmission
Data Min : 0 ~ Max : 64
*Refer to ‘Real data mapping 1’.
Data Min : 0 ~ Max : 64
[ j ] [z] [  ] [Set ID] [  ] [Data] [Cr]
[z] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
15. Low Power (Command:jq)
➜To reduce the power consumption of the projector.
T
ransmission
Data 0 : Low Power Off
1 : Low Power On
Data 0 : Low Power Off
1 :...

Information
37
Supported Monitor Display
Component-*1 HDMI(DTV)-*2 Signal 
* Cable type
1- RCA to D-Sub Adapter
2- HDMI to HDMI Cable
59.94 / 60Hz480i
480p
720p
1080i
50Hz
24/25/30Hz576i
576p
720p
1080i
1080pO
O
O
O
O
O
O
O
OX
O
O
O
X
O
O
O
O
* The following table lists the display formats supported by the projector.
* If the projector does not support the input signal, “Out of Range”
message appears on the screen.
* The projector supports DDC1/2B type as Plug & Play function.
(Auto recognition of PC...

Information
38
Replacing the Lamp
Lamp Replacement
Be careful when replacing lamp
The change interval of lamp may depend on the use environment of Projector. You
can see the used lamp time in the CHECKING LAMP TIME section of the Menu
(page.29). You must replace the lamp when:
The projected image gets darker or starts to deteriorate.The lamp indicator is red.The message “Replace the lamp” appears on the screen when turning the
projector on.
- Press the POWER button on the control panel or remote...

Information
39
1Turn off the projector and unplug the power cable.
Carefully place on a cushioned surface.
(Allow the lamp to cool for 1 hour before
removing the used lamp from the projector.)2Unscrew the screw from the lamp cover using a
screwdriver.
Lamp case screw
3
After lifting the lamp cover off, remove the two
retaining screws on the lamp case with a screw-
driver.
4Lift the lamp up from the projector.
5
Pull out the handle slowly and remove the lamp
case.6
Insert the new lamp gently into the...

Information
40
How to fix the lens cap to the projector
How to fix the lens cap
1Prepare the lens cap and the strap supplied as
accessories.2Insert the non-knot end of the strap into the hole at
the bottom of the lens section of the projector.
3
Fix the strap at the hole of the projector into the
hole of the lens cap, and then pass the lens cap
through the strap lasso.
4
They are completely assembled as shown at
the below figure. 
Regarding the projector lamp control 
Don’t turn off the projector at...