LG CT-25Q47E Service Manual page 10

A
Fig. 2
¡ 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.
1. Preparation for Deflection Adjustment
1) At SVC mode, press the Yellow colored button the SVC
remocon.
And then,deflection data adjustment OSD(SVC2 mode) will
be displayed.
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 PAL B/G Digital pattern.
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.
EP (East west Parabolar)
Adjust so that middle portion of the outermost left and right
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vertical line looks like parallel with vertical lines of the CPT.
B
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.
POP (POP Position)
Adjust until the distance between POP and main picture
b
becomes about 1mm.
¡ White Balance Adjustment.(LINE SVC 1)
NOTE : This adjustment should be performed after screen
1) Tune the TV set to receive an 100% white pattern.
2) Press the Yellow button on remote controller in the SVC
3) Press PSM (RED) button on remote controller. (Standard
4) Press PR+ or PR- button for desirous function adjustment.
5) Adjust Low Light status of CR and CB with VOL+ or VOL-
6) Adjust High Light status of RG and BGB with VOL+ or
7) Repeat above step 5) and 6) until each status of High Light
- 10 -
Menu Range
VS 0600H~0900H
VA 0050H~00CFH
VL 0025H~00BFH
SC 0000H~009FH
HS 0000H~003FH
EW 0400H~0EFFH
ET 0700H~08FFH
EP 06E0H~0840H
ES 06A0H~0AFFH
EC 0790H~08E0H
POP P 0790H~08E0H
(Table 2)
voltage adjustment.
Mode.
picture)
at CG:50 until X=268¡ 8,Y=273¡ 8.
VOL- at CG:370 until X=268¡ 8,Y=273¡ 8.
and Low Light for X=288¡ 8,Y=295¡ 8 with color
analyzer(color temperature 9000
29Ó Flat 29Ó S-Flat
07D2
0095
0001
00D9
001E
0A9D
07FF
0787
0815
0850
000B
o
K).