3-13
3-14
BLOCK DIAGRAM
Copyright © 2018 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
BT Module
IC100
PORTABLE
LPF
WR
Speaker
WR
TR
TR
AUDIO_L/R
AMP
IC701
I2C, MUTE, FAULT
S.FLASH
8MB
SF_CK/CS/IO0~3
I2 S
Charger
IC905
DCDC Buck
IC902
10 V
8.4 V
6 ~ 8.4 V
PVDD
Power control
PWR_SW/PWR_CTRL
32 W
Battery
7.4 V 5200 mAh
3.3 V
KEY
MIC
MIC_IN
MICOM
48PIN
SPK Lighting
UART
For Debug
SPI_CLK/SO/SI/CS
KEY x 9
LED x 7
LED_A_R/G/B
Indicator
ADC
IC101
I2 S
5.2 V
DCDC
IC903
LDO
IC900
5 V
LDO
IC901
SW
PVDD Boost
IC906
Charging Manage
BAT_STAT/CHG_CTRL1/2
Tube Lighting
LED_B_R/G/B
PWR
X-Tal
12.288 MHz
19 V, 1.7 A
19 V
WL
WL
TL
TL
AMP
IC700
LDO
IC702
3.3V_AMP
SYS_PWR
BAT
LDO
IC904
5V_BUS
5V_BUS
LDO
IC907
CSR 3.3 V
1.35 V
