Table of Contents
Advertisement
Available languages
Available languages
3.12 KEY BACLKLIGHT LED Interface
Key Backlight LED is controlled by switch (Q301). If KEY_BCKLIGHT is high, Current is flowing from VBAT to
LED. Then Light emitted from The LED.
KEY_BACKLIGHT
LGE Internal Use Only
KEY BACKLIGHT
VBAT
R328
R329
R330
C334
1u
LD301
LD302
LD303
3
R346
Q301
2
10Kohms
1
C346
2.2u
Figure 3.12.1 Key Backlight Block
R331
R332
R333
R334
LD304
LD305
LD306
51/110
- 50 -
Copyright © 011 LG Electronics. Inc. All right reserved.
3. TECHNICAL BRIEF
3. TECHNICAL BRIEF
R335
R336
R337
LD307
LD308
LD309
LD310
Only for training and service purposes
C333
1u
Advertisement
Table of Contents
