LG SJ8 - Power Block Diagram

3-4
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Only for training and service purposes.
Wireless Module
BT Module
LCD (8 DIGIT) Remocon Module
USB JACK
OPTICAL
HDMI IN x 1
HDMI OUT x 1
WIFI Module
FRONT PCB
DSP
IC260
Serial Flash
IC261
MPEG
IC501
DDR3 IC503,IC504
NAND FLASH IC505
MICOM IC101
3.3 VA
Serial Flash IC102
3.3 VA 3.3 VA
D_3.3V D_1.2V D_1.5V D_1.5V D_3.3V
DSP_1.2V
HDMI
IC800
HDMI_5.1V
HD_1.0V HD_3.3V
AMP IC
IC706, IC708
25 VA
Line Driver
IC702, IC704
DAC_3.3V
DAC
IC705
DAC_1.2V
DAC_3.3V
DVCC_3.3V
12 V
AMP PCB
DSP_3.3V
DSP_3.3V
DCDC IC301 12 VA ˧
˧
D_1.2V
DCDC IC310 5.1 VA
˧
D_1.5V
DCDC IC804 5.1 VA
˧
HD_1V
LDO IC383
DAC_3.3V
˧
DAC_1.2V
SW - IC807
5.1 VA
˧
HD_5.1V
SW- IC312
5.1 VA
˧
VCC_5V
DCDC
IC380
25 VA
˧
12 VA
25 V
SW (TR)
12 VA
LDO IC382
5,1 VA
˧
DAC_3.3V
DCDC IC309 5.1 VA
˧
WIFI_3.5V
DCDC IC303 5.1 VA
˧
3.3VA
WL_3.3V
DCDC IC381 12 VA
˧
5.1 VA
12 V
5.1 VA
5.1 VA
5.1 VA
D_1.2 V
DSP_1.2 V
D_1.5 V
3.3 VA
VCC_5 V
SW - IC305
3.4 VA
˧
D_3.3V
3.3 VA
SW (TR)
SW - IC304
3.4 VA
˧
DSP_3.3V
SW IC308
3.4 VA
˧
WL_3.3V
SW - IC802
3.4 VA
˧
HD_3.3V
SW - IC803
5.1VA
˧
HDMI_5.1V
5.1 VA
2. POWER BLOCK DIAGRAM