LG Dx420 User Manual

							
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Computer Menu  
Press the MENU  button to open the  OSD menu. Press the cursor  ◄► button to move to the  Com-
puter  menu. Press the cursor  ▲▼ button to move up and down in the computer menu. Press  ◄► to 
change values for settings. 
 
ITEM DESCRIPTION 
Horizontal Position Press the cursor  ◄► button to adjust the display position to left or right.  
Vertical Position Press the cursor  ◄► button to adjust the display position to up or down.  
Frequency Press the cursor  ◄► button to adjust the A/D sampling clock. 
Tracking Press the cursor  ◄► button to adjust the A/D sampling dot. 
Auto Image Press  (Enter) /  ► to automatically adjustment for phase, tracking, size and position. 
 
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Video/Audio Menu  
Press the MENU  button to open the  OSD menu. Press the cursor  ◄► button to move to the  
Video/Audio  menu. Press the cursor  ▲▼ button to move up and down in the  Video/Audio menu. 
Press  ◄► to change values for settings. 
 
ITEM DESCRIPTION 
Video AGC Press the  ◄► buttons to enable or disable the Automatic Gain Control for video source. 
Video Saturation Press the  ◄► buttons to adjust the video saturation. 
Video Tint Press the  ◄► buttons to adjust the video tint/hue. 
Film Mode Press the  ◄► buttons to select a different film mode.  
Video Overscan Press the  ◄► buttons to enable or disable video over scan. 
Audio Press  (Enter) /  ► to enter the Audio menu. See Audio on page 27. 
Reset Press  (Enter) /  ► to reset all settings to default values. 
 
Note: 
Video jagging may occur when playing interlace  video. To overcome this issue, open the  
Video / Audio menu and adjust the Film Mode feature.  
 
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Audio 
Press  (Enter) /  ► to enter the  Audio sub menu. 
 
ITEM DESCRIPTION 
Volume Press the ◄► buttons to adjust the audio volume.  
(Range: 0~8) 
Mute Press  the ◄►  buttons to turn on or off the speaker. 
 
 
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Installation I Menu  
Press the MENU  button to open the  OSD menu. Press the cursor  ◄► button to move to the  Installa-
tion I  menu. Press the cursor  ▲▼ button to move up and down in the  Installation I menu. Press 
◄►  to change values for settings. 
 
ITEM DESCRIPTION 
Language Press the cursor  ◄► button to select a different localization Menu. 
Blank Screen Press the cursor  ◄► button to select different color to blank the screen. 
Projection Press the cursor  ◄► button to choose from four projection methods: 
Security Lock  Press the cursor  ◄► button to enable or disable security lock function. 
Aspect Ratio Press the cursor  ◄► button to adjust the video aspect ratio. 
Keystone Press the cursor  ◄► button to adjust the display keystone. 
Digital Zoom  Press the cursor  ◄► button to adjust the Digital Zoom menu. (Range: -10 ~ +10) 
Reset Press  (Enter) /  ► to reset all settings to default values. 
 
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Installation II Menu  
Press the MENU  button to open the  OSD menu. Press the cursor  ◄► button to move to the  Installa-
tion II  menu. Press the cursor  ▲▼ button to move up and down in the Installation II menu.  
 
ITEM DESCRIPTION 
Auto Source Press the cursor  ◄► button to enable or disable automati c source detection. (Range: On ~ Off)
Auto Power Off 
(min.) Press the cursor ◄► button to enable or disable automatic shutdown of lamp when no signal. 
Auto Power On Press the cursor ◄► button to enable or disable automatic power On when AC power is supplied. 
Fan Speed 
Press the cursor ◄►  button to toggle between Normal and High fan speeds.  
Note : We recommend selecting high speed in high temperatures, high humidity, or high  
altitude areas. 
Lamp Mode Press the cursor ◄►  button to select the lamp mode for higher brightness or lower brightness 
to save lamp life. 
Advanced2 Press  (Enter) /  ► to enter the Advanced menu. See Advanced2 Feature on page 30. 
Factory Reset Press  (Enter) /  ►
 to reset all items to factory preset values. 
Status Press  (Enter) / 
►
 to enter the Status menu. See page 33 for more information on Status. 
 
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Advanced2 Feature 
Press the Menu button to open the  OSD menu. Press  ◄► to move to the  Installation II menu. 
Press  ▲▼ to move to the  Advanced2 menu and then press  Enter or ►. Press  ▲▼ to move up and 
down in the  Advanced2 menu. Press  ◄► to change values for setting. 
 
ITEM DESCRIPTION 
OSD Menu Setting Press Enter /  ► to enter the OSD setting menu. See page 31 for more information on OSD 
Menu Setting. 
Peripheral Test Press Enter/  ► to enter the Peripheral Test menu. See page 31 for more information on Periph-
eral Test. 
Lamp Hour Reset After replacing the lamp, this item should be reset. See page 32 for more information on Lamp 
Hour Reset. 
 
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OSD Menu Setting  
 
ITEM DESCRIPTION 
Menu Position Press  ◄► button to select different OSD location. 
Translucent Menu Press  ◄► button to select OSD background translucent level.  
Menu Display Press ◄►  button to select OSD timeout delay. 
Peripheral Test 
 
ITEM DESCRIPTION 
Remote Control Test Press  (Enter) / ► to test the IR remote controller for diagnostic.  
Button Test Press  (Enter) /  ► to test the button on keypad. 
Color Test Press  (Enter) /  ► to select different colors on screen. 
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Lamp Hour Reset 
 
Please refer to Resetting the Lamp on page 36 to reset the lamp hour counter. 
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Factory Reset 
Press the cursor ▲▼  button to move up and down in the  Installation II menu. Select the  Factory 
Reset  sub menu and press 
 (Enter) /  ► to reset all the menu items to the factory default values. 
 
Status 
Press the cursor ▲▼  button to move up and down in the  Installation II menu. Select the   
Installation II sub menu and press 
 (Enter) /  ► to enter the  Status sub menu.
 
 
ITEM DESCRIPTION 
Active Source Display the activated source. 
Video Information Displays resolution/video information for RGB source and color standard for Video source. 
Lamp Hours Lamp hour used information is displayed. Eco and Normal counters are separated. 
 
 
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MAINTENANCE AND SECURITY 
Replacing the Projection Lamp 
The projection lamp should be replaced when it burns out. It should only be r eplaced with a certified 
replacement part, which you can order from your local dealer.  
Important: 
a.  The fluorescent lamp used in this produc t contains a small amount of mercury  
b. Do not dispose this product  with general household waste. 
c. Disposal of this product must be carried out in a ccordance with the regulations of your local  
authority. 
Warning: 
Be sure to turn off and unplug the projector at least 30 minutes before replacing the lamp. Failure to 
do so could result in a severe burn. 
1.  Loosen the two captive 
screws on the lamp compart-
ment cover. 
 
2.  Remove the lamp compart-
ment cover. 
 
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