LG 26LC2R Service Manual - Page 18
Adjustment of White Balance - zj
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< EDID DATA HDMI Set : 256bytes> 4.3.2 Connecting diagram of equipment for measuring (For Automatic Adjustment) [Push the "POWER ON" key at the Adjust Remocon before Adjustment of W/B, the Baud rate & PSM, CSM will change 115200bps, Standard (MJ: Optimum), Normal] => Detail EDID Options are below(a, b, c, d, e) a. Product ID Model Name Dec Product ID Hex 26C2R 22045(A) 561D 22046(B) 561E 32LC2R 30057(A) 7569 30058(D) 756A 37LC2R 30059(A) 756B 30060(D) 756C EDID table 1D56 1E56 6975 6A75 6B75 6C75 b. Serial No: Controlled on production line c. Month, Year: Controlled on production line: ex) Montly: '03' => '03' Year: '2005' => '0F' d. Model Name(Hex) : Model Name Model Name(HEX) 26LC2R-TJ 32 36 4C 43 32 52 2D 54 4A 32LC2R-TJ 33 32 4C 43 32 52 2D 54 4A e.Checksum: Changeable by total EDID data 4.3 Adjustment of White Balance * In case of White Balance rework, you have to RESET the previous White Balance data. (You can do that by pushing the "IN-START" key in adjust remocon and reset) 4.3.1 Required Equipment • Remote controller for adjustment • Color Analyzer (CA-110 or CA-210 or same product; ch : 9) • Auto W/B adjustment instrument (only for Auto adjustment) • AV Pattern Generator ZJ, TJ, CJ - model : 202 (PAL-BDGHI), pattern:78 (216 Gray) MJ - model : 207 (NTSC-J), pattern : 78 (216 Gray) 4.3.3 Adjustment of White Balance for Manual adjustment • Operate the zero-calibration of the CA-110 or CA-210, then stick sensor to LCD module when you adjust. • For manual adjustment, it is also possible by the following sequence 1) Select RF no signal by pressing "POWER ON" key on remote control for adjustment then operate heat run more than 15 minutes. 2) As below Fig. 7, Supply 216Level (85 IRE) Gray pattern to Video input. 26/32LC2R-ZJ : AV3 or AV4(Input 50Hz) 26/32LC2R-TJ : AV1or AV2(Input 50Hz), 26/32/37LC2R-CJ : AV1 or AV2 (Input 50Hz) 26,32LC2R-MJ : VIDEO1 or VIDEO2 (Input 60Hz) 3) Press the POWER ON KEY on R/C for converting input mode. 4) Enter the White Balance adjustment mode by pressing the IN-START key (White Balance) on R/C. 5) Stick sensor to center of the screen and select each items (Red/Green/Blue Gain and Offset) using / (CH +/-) key on R/C.. 6) Adjust Only High Light with R Gain / B Gain using / (VOL + / -) key on R/C. 7) Adjust it until color coordination becomes as below. (Initially, R/G/B gain and R/G/B offset values are fixed as below) Red Gain : 80 , Green Gain : 80 , Blue Gain : 80 Red Offset : 80, Green Offset : 80 , Blue Offset : 80 * Target Value [PSM: Standard(ZJ, TJ, CJ), Optimum(MJ), CSM: Normal] -Normal (9300K) x ; 0.283±0.003 y ; 0.298±0.003 => Reference Value(Automatically fixed) -Cool(11000K): x:0.274±0.003, y: 0.286±0.003 -Warm(7200K) : x:0.303±0.003, y: 0.319±0.003 216 Level(85IRE) * Pattern for Adjustment of White Balance 8) When adjustment is completed, Exit adjustment mode using EXIT key on R/C. - 18 -