LG 55LX9500 Service Manual Download

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LGE Internal Use Only

* Manual Download (Model Name and Serial Number)

If the TV set is downloaded by OTA or service man,
sometimes model name or serial number is initialized.(Not
always)
There is impossible to download by bar code scan, so It
need Manual download.
a. Press the ‘instart’ key of ADJ remote control.
b. Go to the menu ‘5.Model Number D/L’ like below photo.
c. Input the Factory model name(ex 42LX6500-TD) or Serial

number like photo.

d. Check the model name Instart menu -> Factory name

displayed (ex 42LX6500-TD)

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).

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.

D-sub to D-sub

DVI-D to HDMI or HDMI to HDMI

For HDMI EDID

For Analog EDID