Key Led Interface - LG KG270 Service Manual

3.11 Key LED Interface

KEY BACKLIGHT
KEY_BACKLIGHT
This handset has 6 LEDs that illuminates blue color.
Control signal is controlled by EGold-voice with PWM and handset has 3 methods, ON, OFF and
Dimming.
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
VBAT
(10V,K,X5R)
R222 1K
R223
10K
Figure 3-11 Key LED interface
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3. TECHNICAL BRIEF
(10V,K,X5R)
2SC5585
Q200
LGE Internal Use Only