LG MW-30LZ10 Service Manual - Page 5

(2) Connection Diagram of Equipment for Measuring (Automatic Adjustment) COLOR ANALYZER TYPE;CA-100 High Light 450±70cd/m2 RGB Signal Input LCD MONITOR Window MASTER or QUANTUM DATA (Fig. 1) Connection Diagram of 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/GGAIN/B-GAIN automatically. Automatic adjustment equipment decides the values of RGAIN/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. -5-