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LG 47SL90QD Service Manual page 16

Chassis : lj91l
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O White Balance Adjustment (Manual adjustment)
• Test Equipment: CA-210
- Using LCD color temperature, Color Analyzer (CA-
210) must use CH 9, which Matrix compensated
(White, Red, Green, Blue compensation) with CS-
2100. See the Coordination bellowed one.
• Manual adjustment sequence is like bellowed one.
- Turn to "Ez-Adjust" mode with press ADJ button of
service remocon.
- Select "10.Test Pattern" with CH+/- button and press
enter. Then set will go on Heat-run mode. Over 30
minutes set let on Heat-run mode.
- Let CA-210 to zero calibration and must has gap more
10cm from center of LCD module when adjustment.
- Press "ADJ" button of service remocon and select
"7.White-Balance" in "Ez-Adjust" then press
button of navigation key.
(When press "▶" button then set will go to full white
mode)
- Adjust at three mode (Cool, Medium, Warm)
- If "cool" mode
Let B-Gain to 192 and R, G, B-Cut to 64 and then
control R, G gain adjustment High Light adjustment.
- If "Medium" and "Warm" mode
Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment.
- All of the three mode
Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment.
- With volume button (+/-) you can adjust.
- After all adjustment finished, with Enter (■ key) turn
to Ez-Adjust mode. Then with ADJ button, exit from
adjustment mode
Attachment: White Balance adjustment coordination and color
temperature.
O Using CS-1000 Equipment.
- COOL : T=11000K, △uv=0.000, x=0.276 y=0.283
- MEDIUM : T=9300K, △uv=0.000, x=0.285 y=0.293
- WARM : T=6500K, △uv=0.000, x=0.313 y=0.329
5.4 EYE-Q Function check.
1) Turn on TV
2) Press EYE Key of Adj R/C
3) Cover the Eye Q II sensor on the front of the using your
hand and wait for 6 seconds
4) Confirm that R/G/B va;ie os ;pwer tjam 10 of the 'Raw
Data (Sensor data, Back light)". If after 6 seconds, R/G/B
value is not lower than 10, re[;ace EYE Q II sensor.
5) Remove your hand from the EYE Q II sensor and wait for
6 sencond
6) Confirm that "OK" pop up.
If change is not seen, replace EYE Q II sensor
Copyright
LG Electronics. Inc. All right reserved.
Only for training and service purposes
5.5 Test of RS-232C control
"▶"
Press IN-Start button of service remocon then set the "4.Baud
rate" to 15200, Then check RS-232C control and
5.6 Selection of Country option.
Selection of country option is allowed only North American model
(Not allowed Korean model). It is selection of Country about
Rating and Time Zone.
• Models: All models which use LA75A Chassis (See the first
page.)
• Press "In-Start" button of Service Remocon, then enter the
"Option" Menu with "PIP CH-" Button
• Select one of these three (USA, CANADA, MEXICO)
defends on its market using "Vol. +/-"button.
* Caution : Don't push The Instop Key ater completing the
function inspection.
5.7 Check the Ginga(Data Broadcasting)
1) Turn on TV
2) Press the OK Button on the ADJ R/C
3) Check the Ginga icon
- 16 -
LGE Internal Use Only

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