LG KG320 - Drafts and Outbox Messages

3. TECHNICAL BRIEF
- 52 -
3.16 KEY BACKLIGHT
3.17 WHITE/FLASH LED LDO
Key Backlight
12K
R318
R319
12K
Q300
2SC5663
KEY_BACKLIGHT
KEY_LIGHT
FLASH LED & LCD Backlight
1uH
L101
R111
1.5K
FB103
FB102
22
R110
VBAT
C125 1u
C128
1u
1u
C124
7.5K
R113
1u
C126
R112
100K
C129
1u
2.2u
C127
9
5
ISINK1
6
ISINK2
ISINK3
7
NC
8
PGND
17
VIN
4
13
VOUT_BL
3
VOUT_FL
AAT2807AIXN-4.5
11
C1+
C1-
12 14
C2+
C2-
15
C3+
2 1
C3-
EN_FLSH
16
10
EN_SET
GND
U104
MLED3
LCD_DIM_CTRL
MLED1
MLED2
MLED
FLASH_LED
C_FLASH
(2010)
CAMERA FLASH LED
R213
10
2 4 6 8
1 3 5 7
LD201
FLASH_LED
Figure 3-30. MAIN KEY BACKLIGHT
Figure 3-32. WHITE/FLASH LED LDO