LG KB770 Service Manual page 153

6. BLOCK DIAGRAM
Block Diagram_Peripheral
+VPWR
MAIN KEYPAD backlight
MOTOR_POWER-
Motor
PM_ON_SW_N
Remote PWR ON (Recep)
USB_D+, D-, VBUS
USB (Recep)
USIM
JTAG CON, UART,USB
LGE Internal Use Only
TCXO X-tal
(19.2MHz) (32.768MHz)
ON_SW_N
PM6650
LED_CON
LED,Motor
Driver
USB_DAT, SE0 , OE_N
USB Trans
RUIM_IO ,CLK,
USIM Level RUIM_M_IO, CLK, RST_N
Trans
RST_N
SBI
UART TX/RX
USB_D+,D-,VBUS
TRST_N, TCK, TMS, TDI, TDO, RTCK
MSM_RESIN_N
PS_HOLD
TCXO_EN
MSM6280
TCXO_MSM
SLEEP_CLK
PM_INT_N
USB
AMUX_OUT
HKADC0
VBATT_SENSE
HKADC1
HKADC2
TV_OUT_DET
ADC
HKADC3
REMOTE_DET
PCB_REV_CHK HKADC4
VBATT_TEMP HKADC5
UART2
SSBDT_PM
UART1
JTAG
- 154 - Copyright © 2008 LG Electronics. Inc. All right reserved.
TOUCH_SDA
TOUCH_SCL
Touch driver IC
TOUCH_PENIRQ
TFLASH_DET_N
SDCC_CMD
SDCC_DATA[3:0]
TFLASH
SDCC_CLK
KEY_ROW(0:3)
KEY
KEY_COL(0:1)
EAR_SENSE_N
EAR JACK
TTY_ADC_DET
+VPWR
Charge Pump
Charge Pump
LCD_BL_CTRL
Only for training and service purposes