LG TracFone LG840G Service Manual page 122

840GPower Block
■ T3H Power Block
Battery
+VPWR
VDD_USB
1,000mAh
VREG_RFRX
VCOIN
VCOIN
BACKUP BATTERY
LGE Internal Use Only
VREG_USIM VREG_USIM_3.0V
VREG_MICROSD_3.0V
VREG_GP2
VREG_LCD_2.8V
VREG_GP1
1.3V
VREG_RFRX2_1.3V
VREG_RFRX2
VREG_MSME_1.8V
VREG_MSME
QSC6270
VREG_RFA
VREG_RFTX2
VREG_MSMP_2.6V
VREG_MSMP
VREG_TCXO_2.85V
VREG_TCXO
+VPWR
USIM
MICRO SD
2.3" LCD
GPS
MINI-ABB
BATTERY CONN.
AUDIO SUBSYSTEM
HEADSET DETECT
PROXIMITY
TOUCH CONN
MEMORY
BT/WiFi
SIDE KEY
FEM
GPS PAM
- 122 - Copyright © 2012 LG Electronics. Inc. All right reserved.
6. BLOCK DIAGRAM
2GPA
3GPA
JTAG
KEYBACKLIGHT
VIBRATOR
VBUS
PROX_2.8V
MiniABB
PROXIMITY
CAM_D_1.8V
CHG PUMP
2M FF
CAM_A_2.8V
CAM_IO_1.8V
CAM
TOUCH_3.0V
TOUCH CONN
Only for training and service purposes