LG 42LN549D, Руководство по обслуживанию

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Only for training and service purposes
* CASE Cool
First adjust the coordinate far away from the target value(x, y).
①
x, y > target
i) Decrease the R, G.
②
x, y < target
i) First decrease the B gain,
ii) Decrease the one of the others.
③
x > target, y < target
i) First decrease B, so make y a little more than the
target.
ii) Adjust x value by decreasing the R
④
x < target, y > target
i) First decrease B, so make x a little more than the
target.
ii) Adjust x value by decreasing the G
* 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.
4.2. DDC EDID Write (RGB 128Byte )
■ 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 Service main Assembly, EDID have to be downloaded to
Insert Process in advance.
4.3. DDC EDID Write (HDMI 256Byte)
■ 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 Service main Assembly, EDID have to be downloaded to
Insert Process in advance.
4.4. EDID data
(1) All Data : HEXA Value
(2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***: Year : Controlled
****: Check sum
4.4.1. Auto Download
■ After enter Service Mode by pushing “ADJ” key,
■Enter EDID D/L mode.
■Enter “START” by pushing “OK” key.
* Caution : Never connect HDMI & D-sub Cable when EDID
downloaded.
* EDID data and Model option download (RS232)
4.4.2. Manual Download
<Caution>
(1) Use the proper signal cable for EDID Download
* For HDMI EDID(DVI-D to HDMI or HDMI to HDMI Cable)
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
(2) Never connect HDMI & D-sub Cable at the same time.
(3) Use the proper cables below for EDID Writing.
(4) Download HDMI1, HDMI2 separately because HDMI1 is
different from HDMI2.
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Tool Option Commercial
6. Country Group
7. Area Option
8. ADC Calibration
9. White Balance
10. 10 Point WB
11. Test Pattern
12. EDID D/L ►
13. Sub B/C
14. Ext. Input Adjust
EDID
HDMI1 NG
HDMI2 NG
HDMI3 NG
RGB NG
Start Reset
EDID
HDMI1 OK
HDMI2 OK
HDMI3 OK
RGB OK
Start Reset
NO Item CMD 1 CMD 2 Data 0
Enter download
MODE
Download
‘Mode In’
A A 0 0 When transfer the ‘Mode
In’, Carry the command.
EDID data and
Model option
download
Download A E 00 10
Automatically download
(The use of a internal
data)
For Analog For HDMI EDID
D-sub to D-sub DVI-D to HDMI or HDMI to HDMI
No. Item Condition Hex Data
1 Manufacturer ID GSM 1E6D
2 Version Digital : 1 01
3 Revision Digital : 3 03