LG KE590 Service Manual page 79

4. TROUBLE SHOOTING
4.7.1 Check Point #1 - Slide key PCB
Charge
pump IC
(Control
Flash LED)
R130
FLASH_EN
R131
LCD_BL_EN
LGE Internal Use Only
< U104 Connection of Slide key PCB >
C106
C107
1uF
1uF
VBAT
4
VIN VOUT_FL
C111
VOUT_BL
2.2u
9
GND
17
PGND
ISINK1
1.5K
16
EN_FLSH ISINK2
ISINK3
330
10
EN_SET ISINK4
U104
R132
AAT2805IXN-4.5-T1
100K
- 80 -
C108
1uF
FB100
3
FB101
13
5
6
7
R145
8
0
C114 C115 C116
27p 1uF 1uF
Copyright © 2007 LG Electronics. Inc. All right reserved.
FPCB
Connector
< CN101 >
FLASH_LED
MLED
LED_CA1
LED_CA2
LED_CA3
C117
27p
Only for training and service purposes