LG FLATRON Service Manual - Page 17

- Adjust by commanding AUTO_COLOR_ADJUST (0xF1) 0x00 0x02 instruction. 2) Confirmation - We confirm whether "0x8D,0x8E" address of EEPROM "0xB4" is "0xAA" or not. - If "0x8D,0x8E" address of EEPROM "0xB4" isn't "0xAA", we adjust once more. - We can confirm the ADC values from "0x00~0x05" addresses in a page "0xB4". 3.3. Function Check (1) Check display and sound - Check Input and Signal items. ( cf. work instructions) 1) TV 2) AV (CVBS/ S-Video) 3) COMPONENT (480P) 4) RGB (PC : 1024 x 768 @ 60hz) 5) DVI 6) PC Audio In and H/P Out * Display and Sound check is executed by Remote controller. 4. Total Assembly line process 4.1. Adjustment Preparation (1) Above 30 minutes H/run in RF no signal (2) 15 Pin D-Sub Jack is connected to the signal of Pattern Generator. 4.2. Confirm color coordinate of RGB * Check White Balance - Set Input to RGB. - Input signal : (1024 x 768 @ 60Hz), Full white 255/255 gray level (100 IRE, Model : 60, Pattern : 4 at MSPG925L) - Set CSM : 6500k - Confirm whether x = 0.313±0.03, y = 0.329±0.03 or not. - Confirm whether luminance over 200cd/m2 - Set CSM : 9300k - Confirm whether x = 0.283±0.03, y = 0.298±0.03 or not. * Check sRGB - Set Input to RGB. - Input signal : (1024 x 768 @ 60Hz) Full white 255/255 gray level (100 IRE, Model : 60, Pattern : 4 at MSPG925L) - Set CSM : sRGB - Confirm whether x = 0.313±0.03, y = 0.329±0.03 or not. - Confirm whether luminance = 180±50 cd/m2 4.3. Confirm color coordinate of AV (1) Set Input to AV (2) Input signal : CVBS, NTSC @ 60Hz Full white 216/255 gray level (85 IRE, Model : 202, Pattern : 78 at MSPG925L) (3) Set PSM : Dynamic / CSM : Cool (4) Confirm whether x = 0.285±0.03, y = 0.293±0.03 or not. 4.4. Confirm color coordinate of component (1) Set Input to COMPONENT. (2) Input signal : 480P Full white 216/255 gray level (85 IRE Model : 212, Pattern : 78 at MSPG925L) (3) Set PSM : Dynamic / CSM : Cool (4) Confirm whether x = 0.285±0.03, y = 0.293±0.03 or not. 4.5. Confirm Auto adjustment operation. (1) Input 1 Dot on/off & Rectangle Pattern at Model 60 (1024 x 768@60Hz). (2) Confirm adjustment operation by changing Clock, Phase, H/V Position. (3) Check Clock, Phase by pressing AUTO Key after varying the Clock & the Phase 4.6. Other quality - Confirm that each items satisfy under standard condition that was written product spec. (1) AV 1) Select input AV (S-video) and whether picture is displayed or not 2) Select input AV (CVBS) and whether picture is displayed or not. (2) TV - Select input TV and check below item * In Gumi Factory 04 - Stero Sound check 63 - Dual Sound check (3) RGB *M198WA - Select input RGB model 112(1440*900@60hz), 64 Gray Scale pattern and whether picture is displayed or not *M208WA / M228WA - Select input RGB model 122(1680*1050@60hz), 64Gray Scale pattern and whether picture is display or not (4) COMPONENT - Select input COMPONENT and whether picture is displayed or not. - 17 -