Read LG 42LD455B / 42LD455H (CHASSIS:LC01W) Service Manual online
4. Total Assembly line process
4.1. Adjustment Preparation
· W/B Equipment condition
CA210 : CH 9, Test signal : Inner pattern (85IRE)
· Above 5 minutes H/run in the inner pattern. (Turn on TV by
pushing “POWER ON” or “P-ONLY” key)
* Connecting picture of the measuring instrument
(On Automatic control)
Inside Pattern is used when W/B is controlled. Connect to auto
controller or push Adjustment remote control POWER ON ->
Enter the mode of White-Balance, the pattern will come out.
Inside Pattern is used when W/B is controlled. Connect to auto
controller or push Adjustment remote control POWER ON ->
Enter the mode of White-Balance, the pattern will come out.
* Auto-control interface and directions
1) Adjust in the place where the influx of light like floodlight
around is blocked. (illumination is less than 10 lux).
2) Adhere closely the Color Analyzer (CA210) to the module
less than 10cm distance, keep it with the surface of the
Module and Color Analyzer’s Prove vertically.(80° ~ 100°).
Module and Color Analyzer’s Prove vertically.(80° ~ 100°).
3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 15minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others, check
the back light on.
• Auto adjustment Map(RS-232C)
** Caution **
Color Temperature : COOL, Medium, Warm.
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range
of Module)
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range
of Module)
* Manual W/B process using Adjustment remote control
• Enter ‘EZ ADJUST’ mode by pushing “ADJ” key,
• Enter White Balance by pushing “
• Enter White Balance by pushing “
G
” key at “6.White Balance”.
- After all adjustments, press “IN START” key and compare
Tool option value with its BOM, if it is correctly same then
unplug the AC cable.
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.
cable.
For correct it to the model’s module from factory JIG model.
- Push ‘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
• 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
* 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
• 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
* For Service main Assembly, EDID have to be downloaded to
Insert Process in advance.
- 10 -
Cool 1,100
ºK
X=0.276(±0.002)
Y=0.283(±0.002)
Medium
9,300
ºK
X=0.285(±0.002)
Y=0.293(±0.002)
Warm
6,500
ºK
X=0.313(±0.002)
Y=0.329(±0.002)
Full White Pattern
COLOR
ANALYZER
TYPE: CA-210
ANALYZER
TYPE: CA-210
RS-232C Communication
CA-210
RS-232C COMMAND MIN
CENTER
MAX
[CMD ID DATA]
(DEFAULT)
Cool
Mid
Warm
Cool
Mid
Warm
R Gain
jg
Ja
jd
00
172
192
192
192
G Gain
jh
Jb
je
00
172
192
192
192
B Gain
ji
Jc
jf
00
192
192
172
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
Index
Equipment -> Wireless unit
Wireless unit -> Set
CMD1 CMD2 Set ID Data CMD1 CMD2 CMD3 CMD4
Start
w
b
0
00
1F
04
00
00
Gain start
w
b
0
10
1F
04
00
10
Gain End
w
b
0
1F
1F
04
00
1F
Offset Start
w
b
0
20
1F
04
00
20
Offset End
w
b
0
2F
1F
04
00
2F
End
w
b
0
FF
1F
04
00
FF
White Balance
Color Temp.
Cool
R-Gain
172
G-Gain
172
B-Gain
192
R-Cut
64
G-Cut
64
B-Cut
64
Test-Pattern
Backlight
ON
100
Reset
To Set
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. ADC Calibration
7. White Balance
8. 10 Point WB
9. Test Pattern
10. EDID D/L
11. Sub B/C
12. V-Com
13. P-Gamma
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