50PA450T-ZM, 50PA451T-ZG (CHASSIS:PD23B) - LG TV Service Manual (repair manual). Page 9

Read LG 50PA450T-ZM / 50PA451T-ZG (CHASSIS:PD23B) Service Manual online

- 9 -
*  After You finish all adjustments, Press “In-start” button and 
compare Tool option and Area option value with its BOM, if it 
is correctly same then unplug the AC cable.
   If it is not same, then correct it same with BOM and unplug 
AC cable.
  For correct it to the model’s module from factory JIG model.
*  Push The “IN STOP KEY” after completing the function 
inspection. And Mechanical Power Switch must be set “ON”
*  To check the coordinates of White Balance, you have to 
measure at the below conditions.
-  Picture mode : Vivid, Energy Saving : Off, Below the Ad-
vanced control, Dynamic Contrast : Off, Dynamic Colour : Off 
  Colour Temp. 
-> Picture Mode change : Vivid -> Vivid(User)
4.3. DDC EDID Write (RGB 128Byte)
 
         
-> Not used any more, Use Auto D/L
■ Connect D-sub Signal Cable to D-Sub Jack.
■  Write EDID DATA to EEPROM (24C02) by using DDC2B 
protocol.
■ Check whether written EDID data is correct or not.
*  For SVC main Ass’y, EDID have to be downloaded to Insert 
Process in advance.
4.4. DDC EDID Write (HDMI 256Byte) 
      -> Not used any more, Use Auto D/L
■ Connect HDMI Signal Cable to HDMI Jack.
■  Write EDID DATA to EEPROM(24C02) by using DDC2B 
protocol.
■ Check whether written EDID data is correct or not.
*  For SVC main Ass’y, EDID have to be downloaded to Insert 
Process in advance.
4.5. EDID DATA
(1) All Data : HEXA Value
(2) Changeable Data :
     * : Serial No : Controlled / Data:01
     ** : Month : Controlled / Data:00
     *** : Year : Controlled
     **** : Check sum
4.6. EDID DATA Auto Download
(1) Press Adj. key on the Adj. R/C,
(2) Select EDID D/L menu.
(3) By pressing Enter key, EDID download will begin
(4)  If Download is successful, OK is display, but If Download is 
failure, NG is displayed.
(5) If Download is failure, Re-try downloads.
  
* Caution :  Never connect HDMI & D-sub Cable when EDID 
downloaded.
■ Edid data and Model option download (RS232)
- Manual Download
* Caution
● Use the proper signal cable for EDID Download
   - Analog EDID : Pin3 exists
   - Digital EDID : Pin3 exists
* Caution
- Never connect HDMI & D-sub Cable at the same time.
- Use the proper cables below for EDID Writing.
-  Download HDMI1, HDMI2 separately because HDMI1 is dif-
ferent from HDMI2.
Cool
30
Medium
0
Warm
30
NO
Enter  
download MODE
EDID data Model
option download
Item
download ‘Mode In’
download
CMD 1
A
A
CMD 2
A
E
Data 0
0
00
0
10
When transfer the  
‘Mode In’,
Carry the command.
Automatically download
(The use of a internal 
pattern)
No.
Item
Condition
Hex Data
1
Manufacturer ID
GSM
1E6D
2
Version
Digital : 1
01
3
Revision
Digital : 3
03
For Analog EDID
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
Page of 49
Display

Click on the first or last page to see other 50PA450T-ZM / 50PA451T-ZG (CHASSIS:PD23B) service manuals if exist.