Service Manuals, User Guides, Schematic Diagrams or docs for : LG Monitor SW44I(480) CS480_4
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ADJUSTMENT
GENERAL INFORMATION 4. Adjustment for White Balance and Luminance.
All adjustments for monitor are thoroughly checked and Set the White Balance Meter.
corrected befor leave the factory, but sometimes several
Demagnetize CRT with the demagnetizer.
minor adjustments may be required.
Display color 0,0 pattern at Mode 5.
Adjustments should be following procedure and after
Set Brightness ( ) volume to max and VR826
power-on 30 minutes at least.
(Sub-Bright) volume to center position.
Set Contrast ( ) volume to max position.
Alignment appliances and tools
- Signal Generator. (eg. VG819 Astrodesign Co.) Set VR357(R-Bias) and VR367 (G-Bias) to max
- E(E)PROM with saved Mode Data. and VR347 (B-Bias) to center position.
- White Balance Meter Adjust Screen volume on the FBT to 0.1~0.2FL of
- Luminance Meter the raster luminance.
- Multi Meter (Voltmeter) Adjust VR357 (R-Bias) and VR367 (G-Bias) to
x=0.282 0.015 and y=0.304 0.015.
ADJUSTMENT PROCEDURE & METHOD Adjust VR826 (Sub-Bright) to 0.3 0.1FL of the
raster luminance.
2. Adjustment for High Voltage
Display color 15,0 box pattern (70 70mm) at
Display cross-hatch pattern at Mode 5.
`Adjust horizontal size( )with button to max size. Mode 5.
Adjust vertical size ( ) with button to max size. Adjust VR850 (Sub-Contrast) to 40~50FL of the
Adjust TP2 voltage to 145 0.2V with VR705. raster luminance.
Adjust VR313 (R-Drive) and VR314 (G-Drive) to
2. Adjustment for Horizontal Raster Center x=0.282 0.003 and y=0.304 0.003.
Display cross-hatch pattern at Mode 5. Adjust VR850 (Sub-Contrast) to 60 1FL of the box
Adjust the raster should be center of the screen with pattern luminance.
SW731. Display color 15,0 full-white patten at Mode 5.
Adjust VR842 (ABL) to 32 1FL of the luminance.
3. Adjustment for Screen Image Check the x=0.282 0.01 and y=0.304 0.01 at the
Display cross-hatch pattern at Mode 1.
Contrast ( ), Brightness ( ) volume to max
` Adjust horizontal size( ) with , buttons to position and also check Contrast ( ) to max,
250 1mm.
Brightness ( ) volume to min position.
Adjust horizontal position ( ) with , buttons
to center of the screen.
5. Adjustment for Focus.
Adjust vertical size ( ) with , buttons to
185 1mm. Set the Brightness ( ) and Contrast ( ) volume
Adjust vertical position ( ) with , buttons to to max position.
center of the screen. Display H character in full screen at Mode 4.
Adjust side-pincushion ( ) with , buttons Adjust Focus volume on the FBT that the focus
to be the best condition. should be the best condition.
Adjust trapezoid ( ) with , buttons to be
the best condition.
Display from Mode 2 to Mode 5 and repeat from
no. to no. as stated above.
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