3.9 Keypad back-light illumination
There are 2 snow white color LEDs on Key FPCB for keypad illumination. Keypad Back-light is
controlled by SM-Power Flash LED port which has constant current control function. The whole
configuration of the SM-POWER Flash LED drivers is shown in below Figure11.
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3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Figure 11 Keypad Back-light LEDs
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