19LV2300 (CHASSIS:LA86D) - LG TV Service Manual (repair manual). Page 11

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These instructions are applied to all of the LCD TV, LA86D
Chassis.

2.1 Because this is not a hot chassis, it is not necessary to

use an isolation transformer. However, the use of
isolation transformer will help protect test instrument. 

2.2 Adjustment must be done in the correct order. But it is

flexible when its factory local problem occurs.

2.3 The adjustment must be performed in the circumstance of

25±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.

2.4 The input voltage of the receiver must keep 100~220V,

50/60Hz.

2.5 Before adjustment, execute Heat-Run for 30 minutes. 

O

After Receive 100% Full white pattern (06CH) then
process Heat-run 

(Or 8. Test Pattern condition of Ez – Adjust)

O 

How to make set white pattern 

A.  Press Power ON button of Service Remocon
B.  Press ADJ button of Service remocon. Select "10.

Test pattern" and, after select "White" using
navigation button, and then you can see 100% Full
White pattern. 

* In this status you can maintain Heat-Run useless any

pattern generator 

Note) If you maintain one picture over 20 minutes (Especially

sharp distinction black with white pattern – 13Ch, or
Cross hatch pattern – 09Ch) then it can appear image
stick near black level

The ADC adjustment automatically sets the optimum black
level and the gain and compensates the RGB deviation at the
Analog-to-Digital converter

1) Jig(RS-232C)
2) MSPG925FA Series Pattern Generator(MSPG925FA)

- Resolution: 480i comp1

(MSPG-925FA : model-209, pattern-65)

1080p Comp1/RGB(MSPG-925FA:model-225, pattern-65)

- Pattern name: Horizontal 100% Color Bar Pattern

- Pattern level: 0.7±0.1 Vp-p

- Image

3.3.1 ADC 480i Comp1

1) Check the Component1 connection condition from the

used device.

2) Apply 480i Mode, Horizontal 100% Color Bar Pattern

to Comp1 port.

(MSPG-925FA => Model: 209, Pattern: 65)

3) Set the input to Component1 and select ‘Normal’ as

video.

4) Wait for one second or longer after receiving the

signal, press the ADJ key of the R/C to enter into 'Ez-
Adjust', select '3. ADC 480i Comp1', and press the
Enter key to automatically adjust.

5) If it is normally adjusted, the message "ADC

Component1 Success" is displayed.

6) If it is not normally adjusted, the message 'ADC

Component1 480i Fail' is displayed. If the component
is not connected, the message Component1 Not
Connected, or if the input format is not 480i, the
message 'Not Valid Format', or if there is no input
signal, the message 'Check Signal Status' is displayed
for one second.

7) If the adjustment is failed, check the pattern or the

adjustment condition and then readjust