LG MW-30LZ10, Service Manual

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(2) Connection Diagram of Equipment for
Measuring (Automatic Adjustment)
Connect RS-232C to Adjustment Equipment and SET.
Automatization operating room has in charge of managing and
repairing about adjusting equipment.
Only adjust HIGH LIGHT and RGB input adjusts R-GAIN/G-
GAIN/B-GAIN automatically.
Automatic adjustment equipment decides the values of R-
GAIN/G-GAIN/B-GAIN by correcting color coordinates/white
balance and transmits them into SET and finally the SET
saves data values.
(3) White Balance Adjustment(Manual Adjustment)
¯
Operate Zero Calibration of CA-100 and Sensor must be
stick completely to the surface of LCD module
¯
Devide Manual adjustment into AV/PC and operate
adjustment by the following sequence.
¯
Manual adjustment is a temporary method when automatic
adjustment is not correspondent.
1. AV W/B adjustment
1) Select WHITE PATTERN of HEAT RUN mode by
pressing ADJ button on Remote Control for adjustment
then operate HEAT RUN more than 15 minute
2) Supply pattern signal for WB adjustment in pattern
generator. (AV INPUT)
3) Low Light has no special adjustment.
4) To adjust High Light, stick sensor to 2th pattern(White),
select and adjust the AV GAIN by pressing INSTSRT
button on Remote Control for adjustment.
After select the R GAIN and G GAIN, enter Adjustment
Mode by pressing ENTER button and press the VOL +/-
Key and adjust it until color coordination becomes (B
GAIN is fixed)
color coordination : X=0.283±0.003, Y=0.296±0.003
color temperature : 9,350°K ± 500°K
5) Exit adjustment mode using Enter button.
2. PC W/B Adjustment
1) Select WHITE PATTERN of HEAT RUN mode by
pressing ADJ button on Remote Control for adjustment
then operate HEAT RUN more than 15 minute.
2) Supply pattern signal for WB adjustment in pattern
generator.(RGB1 INPUT)
3) Low Light has no special adjustment.
4) To adjust High Light, stick sensor to 2th pattern(White),
select and adjust the PC GAIN by pressing INSTSRT
button on Remote Control for adjustment.
After select the R GAIN and G GAIN, enter Adjustment
Mode by pressing ENTER button and press the VOL +/-
Key and adjust it until color coordination becomes (B
GAIN is fixed)
color coordination : X=0.283±0.003, Y=0.296±0.003
color temperature : 9,350°K ± 500°K
(R Gain is used to adjust X-coordinates while adjusting
and X-coordinates could be shortened when R Gain is
increased.
G Gain is used to adjust Y-coordinates while adjusting
andY-coordinates could be shortened when G Gain is
increased.)
5) Exit adjustment mode using Enter button.
3. Component (480p~1080i) Offset Adjustment
¯
Use this adjustment when the Grayscale out of Ch13.
Pattern has red or blue while producing set.
¯
This adjustment is used to remove the declination of
YPbPr Offset in AD9888.
1) Operate the adjustment after PC/AV White Balance
adjustment progress.
2) Select Ch.14 after connect DTV STB to Component
(480p~1080i) terminal and AV terminal.
3) When you press ADJ button twice on the R/C for
adjustment, the SET goes to DWI condition and Main
Window(right side)/Sub Window(left side) are set to AV
mode.
4) In this condition, adjust R with ‘DTV R OFFSET’ and B
with ‘DTV B OFFSET’ based on ‘foundation color(Gray)’
of Ch.14.
5) Exit adjustment mode using Enter button.
Window
MASTER or
QUANTUM DATA
COLOR
ANALYZER
TYPE;CA-100
RGB Signal Input
LCD MONITOR
High Light
450
±
70cd/m 2
(Fig. 1) Connection Diagram of Automatic Adjustment