LG SPD75A Service Manual

3-4
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Only for training and service purposes.
25VA
MP9442
(4-36V/2A )
12VA 1686mA
MP9453
(4.2-17V/3A)
SY8089A1
(2.5-5.5V/2A)
A
MP8714
(4.5-17V/10A)
SY6288C3 SY6288C3 SY6288C3 SY6288C3 SY6288C3
SY6288C3
SY6288C3
DVDD_CORE (1V) 2910mA
3.3VA 1504mA
DDR_1.5V / 1076mA
1.05V_STB / 82mA
1.8V_STB / 86mA
1.8V_NOR / 312mA
VCC_5V / 300mA USB_5V / 500mA
3.3V_STB / 282mA
3.3V_NOR / 270mA
WIFI_3.45V / 750mA
WLS_3V3 / 105mA
RBOX_3V3 105 mA
IC301 - DSP
MT8531
SY6288C3
HDMI_5V / 91mA
PWM_3.3V / 80mA
Clip / Detect
S/F (RBOX_R)
GD25Q80CSIG
S/F (SW)
GD25Q80CSIG
SY6288C3
LR1148G
HD_3.3V / 41mA
eARC_1.2V / 44mA
HDMI JACK
eARC
Sil9437
MIC PCBA
FRONT PCBA
(GLEDx4 / LCD_5V)
USB JACK
Wifi +BT module
SWF W/L
Module
RBOX_module
5.1VA 1847mA
TR
Switching
LR1148G
W
I
SY8089A1
(2.5-5.5V/2A)
BUZZER / CEC
20mA
DDR3 x 2
MP9453
(4.2-17V/3A)
LR1148G LR1148G
D_3.3V / 5mA
S/W IC
DC/DC LDO
MICOM (Sub.)
R5F100GEAFB#30
Optical JACK
IR Receiver / Touch
MICOM
MSP430F5438AIPZR
S/F (SW)
GD25Q80CSIG
35mA
10mA
5mA
PWM
PS9860
88%
90%
90%
Adpaptor
AMP
TAS5612
88%
90%
90%
90%
eMMC
920mA
5mA
12mA
40mA
P
SY6288C3
360mA
577mA
460mA
872mA 269mA
88%
85mA
Option
Switching / NLASB3157
PDM to I2S / ADAU7002
100mA
2. POWER BLOCK DIAGRAM

LG SPD75A Specifications

General

Brand	LG
Model	SPD75A
Category	Speaker System
Language	English