LG RT-44NA61RB Service Manual page 15

7) PIN-P (Horizontal Trapezoid Distortion Compensation
Adjustment)
Adjust to make the length of top horizontal line same with it of
the bottom horizontal line.
8) PIN-A (Horizontal PIN Distortion Compensation Amount
Adjustment)
Adjust the horizontal width of picture upper and lower is to be
same.
9) V-LIN (Vertical Linearity Adjustment)
Adjust vertical size of the picture to be same with upper and
lower.
10) S-COR (Vertical S Correction)
Adjust so that all distance between each horizontal lines are to
be the same.
11) A-BOW (AFC BOW)
Adjust so that the vertical line at every 4 corners of the screen
look like parallel with the vertical center lines of picture.
12) A-ANG (AFC Angle)
Adjust so that all vertical slope of the picture are vertical.
13) UCPIN (Upper Corner Pincushion)
The pin cushion adjustment of upper part
14) LCPIN (Lower Corner Pincushion)
The pin cushion adjustment of lower part
15) V-ASP(Vertical Aspect Ratio)
Adjust the vertical aspect ratio.
16) V-SCR (Vertical Scroll)
Adjust the vertical aspect position.
Store the adjusted data in EEPROM by pressing the ENTER key
before exiting adjustment mode.
Exit the adjustment mode by pressing the ENTER key.
3. NTSC Mode Deflection Adjustment
Do not adjust V-LIN, S-COR, A-BOW, A-ANG, UCPIN, LCPIN,
V-ASP, V-SCR in NTSC mode.
1) Adjust vertical size (V-SIZE Adjustment) until fifth vertical bar
from upper and lower center screen is accord with the edge
of the frame.
2) Adjust horizontal size (H-SIZE Adjustment) until third bar to
indicate horizontal size of circle is accord with the edge of
the frame.
3) Do other adjustments the same as in PAL mode.
4. 1080i Mode deflection Adjustment (option)
(1) Test Equipment
SETTOP BOX with 1080i output or MSPG-925LTH
(Programmable VIDEO Signal Generator).
(2) Preliminary steps
1) After adjust 1080i with output of the SETTOP BOX,
connects to AV-3 (Side-AV) the Y signal only which is
output from SETTOP BOX with the VIDEO input terminal.
2) Select INSTART key on the Remote Control and then
select "5 1080I-ADJ" move the cursor or using the key
No.5.
3) Adjust vertical size (V-SIZE Adjustment) until fifth vertical
bar from upper and lower center screen is accord with the
edge of the frame.
4) Adjust horizontal size (H-SIZE Adjustment) until twelfth
vertical bar is accord with the edge of th frame.
5) Do other adjustments the same as in PAL mode
Lens Focus & Electronic Focus Adjustment
O
1. Preliminary steps
1) Electronic focus,Raster slope & Raster position must be pre-
adjusted.
2) Heat-run over 60 minutes.
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<Fig. 3>