LG CN29H90 Adjustment Instruction

These instructions are applied to only NC-71A chassis.
Notes
(1) Because this is not a hot chassis, it is not necessary to
use an isolation transformer.
However, the use of isolation transformer will help protect
test instrument.
(2) Adjustment must be done in the correct order.
(3) Supply 100¡›240V A.C./50¡›60Hz.
(4) The receiver must be operated for about 30 minutes proir
to the adjustment.
1. Screen Voltage Adjustment
(1) Press ADJ-STAR button on the Adjustment Remote
Controller and make the screen has the horizontal line.
(2) Turn the screen control clockwise until the Horizontal line
is visible and turn it counterclockwise until the Horizontal
line is faintly visible.
2. FOCUS Adjustment
(1) Press the APC button on the Remote Control for APC
ON condition.
APC ON CONTRAST : 100
BRIGHT : 50
COLOR : 50
TINT : 0
SHARPNESS : 50
(2) Adjust the FOCUS control on the FBT to obtain a sharp
and clear picture.
3. Deflection setting Data Adjustment
(1) Set the TV set in the Power off condition(stand-by).
(2) Press 7,3,9,2,ENTER and POWER buttons on the Remote
control to enter the deflection set-up mode.
(3) Press CH Up/Down to select adjustment item.
(4) Press VOL Up/Down to change Data.
3-1. Horizontal Position(HPOS)
Select VP 1(HPOS) and adjust until left and right side of
screen is equal.
3-2. Vertical Position(VPOS)
Select VP 2(VPOS) and adjust until the mechanical center of
CPT and the center of screen coincides.
3-3. Vertical Size(VSIZE)
Select VP 3(VSIZE) and the center circle of Digital Pattern
coincides with the outer frame of screen.
3-4. Vertical Linearity(U-LIN, L-LIN)
Select VP 4, 5(U-LIN, L-LIN) and adjust until the upper and
lower side of screen is equal.
ADJUSTMENT INSTRUCTION
4. White Balance Adjustment
(1) Press 7, 3, 9, 2 ENTER and POWER buttons on the
Remote controller to get into the Adjustment mode.
(2) Press CH Up/Down to select adjustment item.
(3) Press VOL Up/Down to change Data.
(4) Adjustment
¤ Adjust Contrast and Brightness until the high light area
of signal is 45F.L.
¤Ł Select G-DRI and B-DRI and adjust to get the High light
data.
¤Ø Adjust Contrast and Brightness until the high light area
of signal is 4.5F.L.
¤Œ Select G-CUT and B-CUT and adjust to get the Low
light data .
¤º Repeat adjustment ¤ ~ ¤Œ above to get both Low and
High light data.
Check the result of adjustment using White Balance
¤
Meter
HIGH LIGHT : X=270, Y=283
LOW LIGHT : X=270, Y=283
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