Download Print this page

LG 22MT44D Service Manual page 14

Advertisement

4.4. White balance adjustment
-Equipment
1) Color Analyzer: CA-210 (LED Module : CH 14)
2) Adj. Computer(During auto adj., RS-232C protocol is
needed)
3) Adjust Remocon
*RGB Gains are fixed data for each model.
Insert RS-232C Jack which is connected with PC for White
Balance or equivalent device.
→ Total Assembly line should be check whether the color
coordinate(x,y) data refer to below table were meet or not.
- Warm Panel
Color
Cool
9,300
Temperature
Medium
8,000
Warm
6,500
Luminance
Cool
Min : 80
(cd/m²)
Medium
Min : 80
Warm
Min : 80
*Note : x,y coordinates are drifted about 0.007 after 30 mins
heat-run. So checking color coordinate within 5-min at
total assembly line, consider x,y coordinates might be
up to 0.007 than x,y target of each color temperature.
*Note : Manual W/B process using adjusts Remote control.
1) After enter Service Mode by pushing "ADJ" key,
2) Enter "White Balance" by pushing "►" key at "White Bal-
ance".
* When doing Adjustment, Please make circumstance as
below.
Copyright ©
LG Electronics. Inc. All right reserved.
Only for training and service purposes
°K
X=0.290 (±0.03)
<Test Signal>
Y=0.298 (±0.03)
Inner pattern
(204gray,80IRE)
°K
X=0.300 (±0.03)
Y=0.310 (±0.03)
°K
X=0.318 (±0.03)
Y=0.334 (±0.03)
Typ : 110
<Test Signal>
Inner pattern
Typ : 110
(204gray,80IRE)
Typ : 110
4.5. DPM Operation check
■ Measurement Condition: 100~240V@ 50/60Hz
1) Set Input to RGB-PC and connect D-sub cable to set –
RGB Mode
Set Input to HDMI (with Input Label set to PC) and con-
nect HDMI cable to set – HDMI Mode
2) Cut off H sync or V sync of signal.
3) Check DPM operation refer to the below table.
Operating Condition
Power S/W On
Sleep mode -
RGB,HDMI
4.6. Model Name & SW Version & Adjust check.
* Press the 'Instart' key of ADJ remote controller
4.6.1. Model Name& SW Version Check
1) Check 'Model Name'.
2) Check 'S/W Version' (Refer to the IC Ver. in the BOM)
4.6.2. Adjust Check
1) Check 'Country Group'
2) Check 'Area Option'
3) Check 'Tool Option' (Refer to the BOM Comments)
4) Check 'EDID[RGB&HDMI]' is OK.
* After check all, Press the 'EXIT' key of ADJ remote controller
to go out SVC menu.
- 14 -
Sync
Video
LED
(H/V)
(SET)
Off/Off
Off
Amber
LGE Internal Use Only
Wattage
(W)
1

Advertisement

loading

This manual is also suitable for:

22mt44d-pzr22mt44d-prr