LG Flatron M228WA - Function, Color, and Auto Adjustments

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Copyright 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
<Adjustment pattern (COMPONENT)>
- 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) Video (CVBS/ S-Video)
2) COMPONENT (480P)
3) RGB (PC : 1680 x 1050 @ 60hz)
4) DVI
5) PC Audio In and H/P Out
6) AV Sound
* 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 Video 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 ACC : 6500k
- Confirm whether x = 0.313±0.03, y = 0.329±0.03 or not.
- Confirm whether luminance over 200cd/m
2
- Set ACC : 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 ACC : sRGB
- Confirm whether x = 0.313±0.03, y = 0.329±0.03 or not.
- Confirm whether luminance = 180±50 cd/m
2
4.3. Confirm color coordinate of Video
(1) Set Input to Video
(2) Input signal : CVBS, NTSC @ 60Hz
Full white 216/255 gray level (85 IRE, Model : 201,
Pattern : 78 at MSPG925L)
(3) Set APC : Clear / ACC : 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 APC : Clear / ACC : 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.
Confirm Video and Sound at each source.
(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) RGB
- Select input RGB model 122(1680*1050@60hz), 64
Gray Scale pattern and whether picture is displayed or
not
(3) COMPONENT
- Select input COMPONENT and whether picture is
displayed or not.
(4) DVI
- Select input DVI model 122(1680*1050@60hz), 64 Gray
pattern and whether picture is displayed or not.