Altek AELT27A1, Service Manual

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27’’ LCD TV Color Monitor ALTEK AELT27A1
26
5. White Balance, Luminance Adjustment
Instrument List:
Chroma 2225
、
VG848
、
Chroma 7120
Adjustment Process:
①
Instrument Orientation
Connect LCD-TV 、 Chroma 2225 and VG848, and set Timing137 、 Pattern1 on Chroma2225. Chroma7120’s lens
must aim at the center of Pattern1 showed on the LCD-TV’s screen. The distance of Chroma7120’s lens and the
center of screen is 20cm
±
1cm.
② ENTER FACTORY
After orientation OK, set Pattern104(black picture) on Chroma225.Press 1-9-9-9 on remote to enter the menu
on top left of the screen(refer to fig.1,this menu will show slowly), then from UP key(
△
) option to enter the menu
(refer to fig.2).
Fig.1