6. Deflection Data Adjustment (Line SVC-2)
NOTE : How to enter into the Line Service Mode with a remocon.
1.Power off.
2.Press the Red button. 3.Press the Green button. 4.Press the Yellow button. 5.Press the Cyan button. 6.Press the OK button. 7.Power On.
6-1. Preparation for Deflection Adjustment
1)At adjustment
2)Press Channel UP/DOWN button for desirous function Adjustment.
3)Press Volume UP/DOWN button to adjust the data.
4)Tune the TV set to receive a Digital pattern.(PAL:05CH)
NOTE : If production line doesn’t the production line of LG TV,receive available deflection adjustment pattern.
6-2. Adjustment Method
NOTE : First,adjust deflection at N50Hz,W50Hz,Z50Hz of PAL signal.Then adjust deflection at N60Hz,W60Hz,Z60Hz of NTSC signal.
In case of NTSC only model,adjust deflection of N60Hz,W60Hz,Z60Hz of NTSC signal.
Store the deflection adjustment data in EEPROM by using ENTER button before adjusting PIP position.
1)When adjusting a deflection,adjust N50Hz of PAL signal first and adjust a deflection at W50Hz,Z50Hz,N60Hz,W60Hz,Z60Hz of PAL signal.
2)Adjust a deflection as shown below
PAL 4:3=> PAL 16:9=>PAL ZOOM=>NTSC 4:3=>NTSC 16:9=>NTSC ZOOM.
3)After finishing deflection adjustment,press the ENTER button to enter or exit in SVC mode.
VL (Vertical Linearity)
Adjust so that the boundary line between upper and lower half is in accord with geometric horizontal center of the CPT.
VA (Vertical Amplitude)
Adjust so that the circle of a digital circle pattern may be located within the effective screen of the CPT.
SC (Vertical “S” Correction)
Adjust so that all distance between each horizontal lines are to be the same.
VS (Vertical Shift)
Adjust so that the horizontal center line of a digital circle pattern is in accord with geometric horizontal center of the CPT.
HS (Horizontal Shift)
Adjust so that the vertical center line of a digital circle pattern is in accord with geometric vertical center of the CPT.
EW (Horizontal Width)
Adjust to that a digital circle pattern looks like exact circle.
Fig. 2
EP (East-west Parabolar)
Adjust so that middle portion of the outermost left and right vertical line looks like parallel with vertical lines of the CPT.
EC (East-west Coner)
Adjust so that the vertical line at every 4 corners of the screen looks like parallel with the vertical lines of the CPT.
ET (East-west Trapezium)
Adjust to make the length of top horizontal line same with it of the bottom horizontal line.
PIP (PIP Position)
Adjust until the distance between PIP and main picture becomes about 1~2mm.
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