42PJ350-AB (CHASSIS:PA01A) - LG TV Service Manual (repair manual). Page 7

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(1) Input the component (480i/Horizontal Color Bar) signal to a

TV set.
1) Input Signal Timing : Component 480i 

(Other  external  connection  is  unnecessary  except  the

component before executing ADC calibration.)

2) Input Signal Pattern

@ MODEL: 209 in Pattern Generator(480i Mode)
@  PATTERN  :  65  in  Pattern  Generator(MSPG-925

SERISE) 

(2) Push “ADJ” button on a service R/C.
(3) Enter internal ADC mode by selecting ‘5. ADC Calibration’.
(4) If  you  select  ‘Start’  on  a  dialog  box  of  the  screen,  ADC

calibration will be begun.

Caution: Don’t  connect  any  external  input  cable  except  the

component  input(480i/Horizontal_Color_Bar)  to  adjust
ADC calibration

O

Auto ADC Calibration Map(RS-232C)

# Adjust Sequence

- aa 00 00  [Enter Adjust Mode]
- xb 00 40  [Component1 Input (480i)]
- ad 00 10  [Adjust 480i Comp1]
- xb 00 60  [RGB Input (1024*768)]
- ad 00 10  [Adjust 1024*768 RGB]
- aa 00 90  End Adjust mode

(1) Push “ADJ” button on a service R/C.
(2) Enter  EDID  auto  download  mode  by  selecting  ‘8.  EDID

D/L’.

(3) If  you  select  ‘Start’  on  a  dialog  box  of  the  screen,  EDID

download will be begun automatically.

(4) Press ‘EXIT’ button on a service R/C.

(5) EDID Data

1) HDMI (HD Models, 256 bytes)

2) RGB (HD Models, 128 bytes)

O

EDID Data detailing (

ⓐ, ⓑ, ⓒ, ⓓ, ⓔ, ⓕ)

<Horizontal Color Bar pattern>

NO

Item

CMD1

A

A

0

0

0

1

D

A

CMD2 Data0

Enter  

Adjust MODE

Adjust 

‘Mode In’

When transfer the ‘Made

In’, Carry the command.

Automatically adjustment

ADC

Adjust

ADC Adjust