LG 29LN300B, Service Manual

- 12 -

LGE Internal Use Only

Copyright  © 

  LG Electronics. Inc. All right reserved. 

Only for training and service purposes

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.

*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.

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 connect 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.

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 ‘Adjust ADC[Comp&RGB]’ is OK.

5) Check ‘EDID[RGB&HDMI]’ is OK.  

*  After check all, Press the 'EXIT' key of ADJ remote controller 

to go out SVC menu. 

4.7.  Outgoing condition Configuration

*  After all function test., press IN-STOP Key by SVC Remote 

controller. And make Outgoing Condition

~›ŒGiˆ“ˆ•ŠŒG

j–“–™G{Œ”—UG

ඔG

j––“G

ඖG

yTnˆ•G

G

XWWG

G

nTnˆ•G

G

XW[G

G

iTnˆ•G

G

X`YG

G

yTjœ›G

G

][G

G

nTjœ›G

G

][G

G

iTjœ›G

G

][G

G

{Œš›Twˆ››Œ™•G

G

vuG

G

iˆŠ’“Ž›G

G

XWWG

G

yŒšŒ›G

G

{–GzŒ›G

G

G

WUG{––“Gv—›–•XG

G

G

XUG{––“Gv—›–•YG

G

G

YUG{––“Gv—›–•ZG

G

G

ZUG{––“Gv—›–•[G

G

G

[UG{––“Gv—›–•\G

G

G

\UG{––“Gv—›–•]G

]UGj–œ•›™ Gn™–œ—G

G

G

^UGhkjGjˆ“‰™ˆ›–•G

G

G

_UG~›ŒGiˆ“ˆ•ŠŒG

ඖ

G

G

`UGXWGw–•›G~iG G

G

G

XWUG{Œš›Gwˆ››Œ™•G G G

G

G

XXUGlkpkGkVsG

G

G

XYUGzœ‰GiVjG

XZUG{–œŠGzŒ•š›› GzŒ››•ŽG

X[UGlŸ›UGp•—œ›Gh‹‘œš›G

X\UGzwrGs—š •ŠGh‹‘œš›G

X]UzwkpmGs—š •ŠGh‹‘œš›G

G

G

G

G

G

Operating Condition

Sync

(H/V)

Video

LED

(SET)

Wattage

(W)

Power S/W On

Sleep mode - 

RGB,HDMI

Off/Off

Off

Amber

1

Color 

Temperature

Cool

13,000k

°K

X=0.276 (±0.03)

Y=0.275 (±0.03)

<Test Signal>

Inner pattern

(204gray,80IRE)

Medium

9,300k

°K

X=0.290 (±0.03)

Y=0.298 (±0.03)

Warm

6,500k

°K

X=0.318 (±0.03)

Y=0.334 (±0.03)

Luminance

(cd/m²)

Cool

Min : 80

Typ : 110

<Test Signal>

Inner pattern

(204gray,80IRE)

Medium

Min : 80

Typ : 110

Warm

Min : 70

Typ : 110