50PN452D-ZE (CHASSIS:PD31B) - LG TV Service Manual (repair manual). Page 7

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 USB DOWNLOAD(*.epk file download)
(1)  Put the USB Stick to the USB socket 
(2)  Automatically detecting update file in USB Stick
-  If your downloaded program version in USB Stick is Low, 
it didn’t work.
-   But  your  downloaded  version  is  High,  USB  data  is 
automatically detecting
(3)  Show the message “Copying files from memory”
(4)  Updating is staring.
(5)  Updating  Completed,  The  Multi-vision  will  restart 
automatically.
(6)  If  your  Multi-vision  is  turned  on,  check  your  updated 
version  and  Tool  option.  (explain  the  Tool  option,  next 
stage)
* After downloading, have to adjust TOOL OPTION again.
1) Push "IN-START" key in service remote controller.
2) Select "Tool Option 1" and Push “OK” button.
3)  Punch  in  the  number.  (Each  of  models  has  their 
number.)
4) Completed selecting Tool option.
3.1. ADC Process
3.1.1. ADC
■ Enter Service Mode by pushing “ADJ” key,
Calibration”
 
* Caution :  Using  ‘power  on’  button  of  the Adjustment  R/C  , 
power on Multi-vision.
* ADC Calibration Protocol (RS232)
 - Adjust Sequence
▪aa 00 00  [Enter Adjust Mode]
▪xb 00 40  [Component1 Input (480i)]
▪ad 00 10  [Adjust 480i Comp1]
▪aa 00 90  End Adjust mode
* Required equipment : Adjustment R/C. 
3.2. Function Check
3.2.1. Check display and sound 
■ Check Input and Signal items. (cf. work instructions) 
1) TV
2)AV (SCART/ CVBS)
3) COMPONENT (480i)
4) HDMI
5) PC Audio In 
  *  Display and Sound check is executed 
    by Remote controller.
* Caution :  Not to push the INSTOP KEY after completion if 
the function inspection.
50PN450D-Z*
HD/FHD
HD
Tool option 1
36864
Tool option 2
21800
Tool option 3
3313
Tool option 4
51846
Tool option 5
42(170)
* UK Model
NO
Enter  
Adjust MODE
ADC adjust
Item
Adjust ‘Mode In’
ADC Adjust
CMD 1
A
A
CMD 2
A
D
Data 0
0
1
0
0
When transfer the  
‘Mode In’,
Carry the command.
Automatically adjustment
(The use of a internal 
pattern)
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