- 43 -
3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.8 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.
Figure 11 Keypad Back-light LEDs
ICVN0505X150FR
VA100
ICVN0505X150FR
VA101
LEWWS44-E
LD101
R101
47
47
R100
LD100
LEWWS44-E
VBAT
KEY_BACKLIGHT
Содержание KF350
Страница 1: ...Service Manual Model KF350 Service Manual KF350 Date October 2008 Issue 1 0 Internal Use Only ...
Страница 127: ... 128 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 174: ...Note ...
Страница 175: ...Note ...