LG Dx540 User Manual

							RS-232C
31
Command Reference List
* Refer to the detailed information for data with [*] mark.
❑ Communication Protocol
Command1 Command2Data(Hexadecimal)01. Power   k  a 0 ~ 1
02. Input Select  k  b *
03. Aspect Ratio  k  c 1 ~ 2
04. Screen Mute  k  d 0 ~ 1
05. Contrast k  g 0 ~ 64
06. Brightness  k  h 0 ~ 64
07. Color k  i 0 ~ 64
08. Tint  k  j 0 ~ 64
09. Sharpness k  k 0 ~ 64
10. OSD Select k  l 0 ~ 1
11. Remote Control Lock / Key Lock k  m 0 ~ 1
12. Color Temperature k u 0 ~ 3
13. Red ADC gain adjustment j w 0 ~ 64
14. Green ADC gain adjustment j y 0 ~ 64
15. Blue ADC gain adjustment j  z 0 ~ 64
16. Low Power j q 0 ~ 1
17. Auto configuration j u 1
18. Input Select x  b *
19. Key m c Key code
* Real data mapping 1
* Real data mapping 2
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							RS-232C
32
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 format, Acknowledgement data feed back presents 
status about each function.
02. Input Select(Command:kb)
➜To select input source for the Set. 
T
ransmission
Data 2 : Video 3 : S-Video 4 : Component
7 : RGB 9 : DVI Data 2 : Video 3 : S-Video 4 : Component
7 : RGB 9 : DVI
[k] [b] [  ] [Set ID] [  ] [Data] [Cr]
[b] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
03. Aspect Ratio(Command:kc)
➜To adjust the screen format.
T
ransmission
Data 1 : 4:3
2 : 16:9
Data 1 : 4:3
2 : 16:9
[k] [c] [  ] [Set ID] [  ] [Data] [Cr]
[c] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
1. Transmission
*  [Command 1] :  First command to control the set.(k, j, x, ASCII code, 1 Character)
*  [Command 2] : Second command to control the set..(ASCII code, 1 Character)
*  [Set ID] :  You can adjust the set ID to choose desired projector ID number in special menu. See previous page. 
Adjustment range is 1 ~ 99. When selecting Set ID ‘0’, every connected projector set is controlled.
Refer to ‘Real data mapping 1’.
*  [DATA] : To transmit command data. Transmit 2 character when organized ASCII code.
* Transmit ‘FF’data to read status of command.
*  [Cr] : Carriage Return
ASCII code ‘0x0D’
*  [   ] :  ASCII code character correspond to “Space Bar” which is in order to classify command, set ID and Data.
[Command1][Command2][ ][Set ID][ ][Data][Cr]
* The Projector transmits ACK (acknowledgement) based on this format when receiving normal data. At this time, if the data is 
data read mode, it indicates present status data. If the data is data write mode, it returns the data of the PC computer.
[Command2] [  ] [Set ID] [  ] [OK] [Data] [x]
[Command2] [  ] [Set ID] [  ] [NG] [Data] [x]
3. Error Acknowledgement
2. OK Acknowledgement
* The Projector transmits ACK (acknowledgement) based on this format when receiving abnormal data from non-viable 
functions or communication errors.
Data : [1] : illegal code(This command is not supported.)
[2] : not support function(This function doesn’t work.)
[3] : wait more time(Try again a few minute later.)
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							RS-232C
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04. 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
07. Color (Command:ki)
➜To adjust the screen color.
T
ransmission
Data Min : 0 ~ Max : 64
*Refer to ‘Real data mapping 1’.
Data Min : 0 ~ Max : 64
[k] [ i ] [  ] [Set ID] [  ] [Data] [Cr]
[ i ] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
08. Tint (Command:kj)
➜To adjust the screen tint.
T
ransmission
Data Red : 0 ~ Green : 64
* Refer to ‘Real data mapping2’.
Data Red : 0 ~ Green : 64
[k] [ j ] [  ] [Set ID] [  ] [Data] [Cr]
[ j ] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
09. Sharpness (Command:kk)
➜To adjust the screen sharpness.
T
ransmission
Data Min : 0 ~ Max : 64
* Refer to ‘Real data mapping 1’.
Data Min : 0 ~ Max : 64
[k] [k] [  ] [Set ID] [  ] [Data] [Cr]
[k] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
10. OSD Select(Command:kl)
➜To select OSD On/Off.
T
ransmission
Data 0  :  OSD Select Mode Off 
1  :  OSD Select Mode On
Data 0  :  OSD Select Mode Off 
1  :  OSD Select Mode On
[k] [ l ] [  ] [Set ID] [  ] [Data] [Cr]
[ l ] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
11. Remote Control Lock/Key Lock(Command:km)
➜To lock the front panel controls on the 
projector and remote control.
T
ransmission
Data 0 : Lock Off
1 : Lock On
Data 0 : Lock Off
1 : Lock On [k] [m] [  ] [Set ID] [  ] [Data] [Cr]
[m] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
* If youre not using the remote control, use this mode.
When main power is On/Off, external control lock is released.
12. Color Temperature (ACC)(Command:ku)
➜ Adjust the color temperature.
T
ransmission
Data 0 : Medium     1 : Cool     2:Warm 3 : Natural
Data 0 : Medium     1 : Cool     2:Warm 3 : Natural
[k] [u] [  ] [Set ID] [  ] [Data] [Cr]
[u] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
05. Contrast (Command:kg)
➜To adjust screen contrast. 
T
ransmission
Data Min : 0 ~ Max : 64
*Refer to ‘Real data mapping 1’.
Data Min : 0 ~ Max : 64
[k] [g] [  ] [Set ID] [  ] [Data] [Cr]
[g] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
06. Brightness (Command:kh)
➜To adjust screen brightness.
T
ransmission
Data Min : 0 ~ Max : 64
*Refer to ‘Real data mapping 1’.
Data Min : 0 ~ Max : 64
[k] [h] [  ] [Set ID] [  ] [Data] [Cr]
[h] [  ] [Set ID] [  ] [OK] [Data] [x]Ack
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							RS-232C
34
15. 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
16. 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 : Low Power On
[ j ] [q] [  ] [Set ID] [  ] [Data] [Cr]
[q] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
17. Auto Configure (Command:ju)
➜To adjust picture position and minimize image shaking 
automatically. It works only in RGB mode.
T
ransmission
Data 1 : To set
Data 1 : To set
[ j ] [u] [  ] [Set ID] [  ] [Data] [Cr]
[u] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
18. Input Select (Command:xb)
➜To select input source for the Set. 
T
ransmission
Data 20 : Video 30 : S-Video 40 : Component
60 : RGB 80 : DVI
Data 20 : Video 30 : S-Video 40 : Component
60 : RGB 80 : DVI
[x] [b] [  ] [Set ID] [  ] [Data] [Cr]
[b] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
External control device setup
19. Key (Command:mc)
➜To send Key code of IR romote control. 
T
ransmission
Data Key code
Key code
[m] [c] [  ] [Set ID] [  ] [Data] [Cr]
[b] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
Power                                  AD 
Menu                                   43
Source                                 EF
Keystone 
+/D           A4
Keystone -/E           A5G02F03
Auto                                    92
A OK                                44        
Blank                                  84
ARC                                   79
Still                                     BC
13. Red ADC gain Adjustment (Color R)
(Command:jw)
➜Adjust the Red gain of ADC part.(RGB)
Transmission
Data Min : 0 ~ Max : 64
*Refer to ‘Real data mapping 1’.
Data Min : 0 ~ Max : 64
[ j ] [w] [  ] [Set ID] [  ] [Data] [Cr]
[w] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
14. Green ADC gain Adjustment (Color G)
(Command:jy)
➜Adjust the Green gain of ADC part.(RGB)
T
ransmission
Data Min : 0 ~ Max : 64
*Refer to ‘Real data mapping 1’.
Data Min : 0 ~ Max : 64
[ j ] [y] [  ] [Set ID] [  ] [Data] [Cr]
[y] [  ] [Set ID] [  ] [OK] [Data] [x]
Ack
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							Information
35
Supported Monitor Display
Component-*1 RGB(DTV)-*2 HDMI(DTV)-*3 Signal 
* Cable type
1- RCA to D-Sub Adapter
2- Computer Cable
3- DVI-D Cable
NTSC(60Hz)480i
480p
720p
1080i
PAL(50Hz)576i
576p
720p
1080iO
O
O
O
O
O
O
OX
O
O
O
X
O
O
OX
O
O
O
X
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 monitor)
* The Synchronization input form for horizontal and vertical frequencies are Separate.
* According to PC, the optimum vertical frequency may not be displayed up to the optimum frequency of set in ‘Registration information (Display registration informa-
tion)’. (ex, The optimum vertical frequency may be displayed up to 85Hz or under in the resolution of 640X480 or 800X600.)
Maintenance
Cleaning the lens
Clean the lens whenever you notice dirt or dust on the surface of it. Wipe the lens surface gently with an air spray or a soft, dry lint-free cloth.
To remove dirt or stains on the lens, moisten a soft cloth with water and a neutral detergent and wipe the lens surface gently. 
Cleaning the Projector Case
To clean the projector case, first unplug the power cable. To remove dirt or dust, wipe the casing with a soft, dry, lint-free cloth. To remove stubborn dirt or stains,
moisten a soft cloth with water and a neutral detergent and then wipe the casing.
Do not use alcohol, benzene, thinners or other chemical detergents as these can cause the casing to be warped or discolored. * The projector needs little maintenance. You should keep the lens clean because any dirt or stains may appear on the screen. If any parts need to be replaced,
contact your dealer.  When cleaning any part of the projector, always turn the power off and unplug the projector first.Sources            Format               Vertical Freq.(Hz)         Horizontal Freq.(kHz)
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							Information
36
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.27). 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 control to turn off power.
- If the operation indicator LED is orange and blinking, do not disconnect the main supply until the operation indicator LED 
is lit up constantly (orange).
- Allow the lamp to cool for 1 hour before replacing it.
- Replace only with the same type lamp from an LG Electronics Service Center. Using another manufacturers lamp may
cause damage to the Projector and lamp.
- Pull out the lamp only when replacing the lamp.
- Keep the lamp unit out of reach of children. Keep the Lamp away from heat sources such as radiators, stoves etc.
- To reduce the risk of fire do not expose the lamp to liquids or foreign materials.
- Do not place the lamp near any heat source.
- Make sure the new lamp is securely tightened with screws. If not, the image may be dark or there  could be an increased
risk of fire.
- Never touch the lamp unit glass otherwise image quality may be compromised or lamp life maybe reduced.
To obtain a replacement Lamp unit
Lamp model number is on page 39. Check the lamp model and then purchase it from an LG Electronics Service Center.
Using another manufacturers lamp may cause damage to the projector.
Lamp unit disposal
Dispose of the used lamp by returning it to the LG Electronics Service Center.

Lamp indicators
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							Information
37
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 correct position.
Make sure it is inserted correctly.
7Tighten the screws you removed in step 3.
(Make sure they are fixed firmly.)
8
Close the lamp cover and install the screws from
step 2 to install the cover.
(If the lamp cover is not installed correctly the unit will not
power on.)
Replacing the Lamp
Screws
Using another manufacturers lamp may cause damage to the projector or lamp.
Make sure the lamp cover is securely fastened. If the lamp cover is not installed correctly the unit will not power on.
If this fault persists contact an LG Authorized Service Center.
Knob
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							Information
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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 least in 5 minutes after activating it. 
- The frequent On/Off changes may cause the lamp function to deteriorate.
Don’t pull out the power cord while activating the projector and the cooling fan. 
- It may cause the lamp life-span to shorten and get damaged. 
The life-span of projector may considerably depend on the use environment and treatment conditions. 
The projector uses the high pressure mercury lamp so that the serious caution is essential. The shock or abuse while using
may cause lamp to blow off with explosion. 
When you continue to use the projector after an interval of lamp replacement, the lamp may be blown off with explosion.
The following treatment should be done, in case of lamp blow-off.
- Pull off the power cord immediately.
- Let some fresh air in immediately (Ventilation).
- Check the product condition at the nearer service center and replace it with new lamp, if necessary. 
- Don’t try to disassemble the product without the authorized technician.  
WARNING
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							Information
39
Specifications
Operating ConditionProjector Lamp
MODEL
Resolution
Horizontal / Vertical Ratio
DLP panel size
Screen size
(Projection distance)
Projection off-set ratio
Remote control distance
Zoom ratio
Video compatibility
Power
Height(mm/inches)
Breadth(mm/inches)
Length(mm/inches)1024(Horizontal) x 768(Vertical)pixel
4:3(horizontal:vertical)DX540 (DX540-JD)
Temperature
In operation : 32~95°F(0°C~35°C)
In storage and transit : -4~140°F(-20°C~60°C)
Humidity 
In operation : 0~ 75% relative humidity by dry hygrometer
Not in operation : 0 ~ 85% relative humidity by dry hygrometer
Lamp model
AJ-LDX5
Lamp power consumption
300W
0.7 inches
Wide : 1.26 ~ 9.63m(40 ~ 300 inches)
Tele : 1.50 ~ 11.47m(40 ~ 300 inches)
100%
12m
1:1.2
NTSC/PAL/SECAM/NTSC4.43/PAL-M/PAL-N
AC 100 - 240V~50/60Hz, 3.7A-1.5A
114/4.5
346/13.6
263/10.4
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							DX540
OWNER’S MANUAL
LG  DLP  PROJECTOR LG  DLP  PROJECTOR
Please read this manual carefully before operating
your set. 
Retain it for future reference.
Record model number and serial number of the set. 
See the label attached on the bottom of the set and
quote this information to your dealer when you
require service.
Model number :
Serial number :
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