LG 47LX6800 Service Manual page 11

4. Manual Adjustment
4.1. ADC(GP2) Adjustment
4.1.1. Overview
ADC adjustment is needed to find the optimum black level and
gain in Analog-to-Digital device and to compensate RGB
deviation.
4.1.2. Equipment & Condition
(1) Adjust Remote control
(2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern
Generator
- Resolution :
480i, 720*480 (MSPG-925FA -> Model: 209, Pattern: 65)
- 480i
1080p, 1920*1080 (MSPG-925FA -> Model: 225, Pattern:
65) - 1080p
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level: 0.7 ± 0.1 Vp-p
- Image
(3) Must use standard cable
4.1.3. Adjust method
(1) ADC 480i, 1080p Comp1
1) Check connected condition of Comp1 cable to the equipment
2) Give a 480i, 1080p Mode, Horizontal 100% Color Bar
Pattern to Comp1.
(MSPG-925FA -> Model: 209, Pattern: 65) - 480i
(MSPG-925FA -> Model: 225, Pattern: 65) - 1080p
3) Change input mode as Component1 and picture mode
as "Standard"
4) Press the In-start Key on the ADJ remote after at least 1
min of signal reception. Then, select 7. External ADC ->
1. COMP 1080p on the menu. Press enter key. The
adjustment will start automatically.
5) If ADC calibration is successful, "ADC RGB Success" is
displayed.
If ADC calibration is failure, "ADC RGB Fail" is displayed.
6) If ADC calibration is failure, after recheck ADC pattern or
condition retry calibration Error message refer to 5).
(2) ADC 1920*1080 RGB
1) Check connected condition of Component & RGB cable
to the equipment
2) Give a 1920*1080 Mode, 100 % Horizontal Color Bar
Pattern to RGB port.
(MSPG-925 Series -> model: 225 , pattern: 65 )
3) Change input mode as RGB and picture mode as "Standard".
4) Press the In-start Key on the ADJ remote after at least 1
min of signal reception. Then, select 7. External ADC ->
1. COMP 1080p on the menu. Press enter key. The
adjustment will start automatically.
5) If ADC calibration is successful, "ADC RGB Success" is
displayed.
If ADC calibration is failure, "ADC RGB Fail" is displayed.
6) If ADC calibration is failure, after recheck ADC pattern or
condition retry calibration Error message refer to 5).
Copyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4.2. EDID(The Extended Display Identification
Data)/DDC(Display Data Channel) download
(1) Overview
It is a VESA regulation. A PC or a MNT will display an
optimal resolution through information sharing without any
necessity of user input. It is a realization of "Plug and Play".
(2) Equipment
- Adjust remote control
- Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
(3)Download method
1) Press Adj. key on the Adj. R/C, then select "10.EDID
D/L", By pressing Enter key, enter EDID D/L menu.
2) Select [Start] button by pressing Enter key, HDMI1 /
HDMI2 / HDMI3 / HDMI4 / RGB are Writing and display
OK or NG.
For Analog EDID
D-sub to D-sub
(4) EDID DATA
HDMI
A
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00 FF FF FF
ⓒ
0x01 01 03
0x02 0F 50 54 A1
0x03 01 01 01 01
0x04 45 00 A0 5A
0x05 6E 28 55 00
0x06 3E 1E 53 10
0x07
0x00 02 03 37 F1
0x01 22 15 01 26
0x02
ⓕ
0x03 E3
0x04 2C 25 00 A0
0x05 20 6E 88 55
0x06 38 2D 40 58
0x07 00 00 00 00
RGB
A
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00 FF FF FF
0x01 ⓒ 01 03
0x02 0F 50 54 A1
0x03 01 01 01 01
0x04 45 00 A0 5A
0x05 6E 28 55 00
0x06 3E 1E 53 10
0x07
Reference
A
- HDMI1 ~ HDMI4 / RGB
- In the data of EDID, bellows may be different by S/W or
Input mode.
- 11 -
For HDMI EDID
DVI-D to HDMI or HDMI to HDMI
FF FF FF 00 1E 6D ⓐ
80 10 09 78 0A EE 91
08 00 71 4F 81 80 01
01 01 02 3A 80 18 71
00 00 00 1E 01 1D 00
A0 5A 00 00 00 1E 00
00 0A 20 20 20 20 20
ⓓ
4E 10 1F 84 13 05 14
15 07 50 09 57 07
ⓕ
05 03 01 01 1D 80 18
5A 00 00 00 9E 01 1D
00 A0 5A 00 00 00 1A
2C 45 00 A0 5A 00 00
00 00 00 00 00 00 00
FF FF FF 00 1E 6D ⓐ
68 10 09 78 0A EE 91
08 00 81 80 61 40 45
01 01 02 3A 80 18 71
00 00 00 1E 01 1D 00
A0 5A 00 00 00 1E 00
00 0A 20 20 20 20 20
ⓓ
LGE Internal Use Only
ⓑ
A3 54 4C 99 26
01 01 01 01 01
38 2D 40 58 2C
72 51 D0 1E 20
00 00 FD 00 3A
20 ⓓ
01 ⓔ1
03 02 12 20 21
ⓕ
71 1C 16 20 58
00 80 51 D0 1A
02 3A 80 18 71
00 1E 00 00 00
00 00 00 00 ⓔ2
ⓑ
A3 54 4C 99 26
40 31 40 01 01
38 2D 40 58 2C
72 51 D0 1E 20
00 00 FD 00 3A
ⓓ
20
ⓔ3
00