Power Block Diagram - LG LAS855M Service Manual

2. POWER BLOCK DIAGRAM

mW
(mW)
25 VA
Adapter
1036mA_RMS
25VA
7036mA_Peak
AWG 24 4A
DCDC
LDO/SW
Alive VCC
Ctrl VCC
4386 mW
Calculated
(5043 mW)
Efficiency values
400mA_RMS
3200mA_RMS Measurement condition
mW
6400mA_8.3ms_Dynamic condition
960 mW
12 V
(1056 mW)
MP1432
on AMP board
25 VA 12 V
5324 mW
5.1 VA
MP1432
(5856 mW)
25 VA 5.1 VA
SN1406035RGER
1725 mW
(1811 mW)
7834 mW
3.4 VA
720 mW
MP1432
(8617 mW)
25 VA 3.4 VA
2539 mW
1287 mW
3255 mW
42.9 mW
2-35
RMS output
40/8 x 2 = 10 W, 5/8 x 16 = 20 W
Power Measurement condition: 20 W
Peak output 1k 0dB Measurement condition: 160 W
40 x 2 = 80 W, 5 x 16 = 80 W
Instantaneous peak condition : 160 W
3350 mW BD2242G
VCC_5V
5.1 VA 5 V
HDMI_5VA
250 mW
1.2 V
5.1 VA → 1.2 V
1.5 V
5.1 VA → 1.5 V
3.4 VA
BD2242G
D_3.3V
3.5 VA 3.4 VA
BD2242G
WLS_3.3V
3.5 VA 3.4 VA
BD2242G WIFI_3.3VA
3.5 VA 3.4 VA
F_3.3VA
2-36
TAS5612
LCD(Back Light),
120 mA
TAS5612
PCM1808, LCD,
670 mA
USB
50 mA
HDMI
1000 mA
MT8506
350 mA
DDR, MT8506
MICOM,BT,
218 mA
EEPROM
SDRAM,FSH,
769 mA
MT8506,NAND,
PCM1808,PS9860
390 mA
WLS
930 mA
Wi-Fi
13 mA
LCD,RMC