Block Diagram - LG 22LG3000 Service Manual

1. Main Board
Power
16
Board
3.3V,2.5V,1.8V,1.2V,1.1V
5V
D-SUB/PC-VGA
SCART
S-Video
HDMI 1
HDMI 2
YPbPr/L/R
Audio R/L of CVBS
Audio R/L of PC
Copyright©2008 LG Electronics.Inc.All right reserved
Only for training and service purposes

BLOCK DIAGRAM

DDR SDRAM
HY5DU121622DTP-D4
3
2.5V
Power
MT5380GKU
MPEG-1 layer I/II decoding
Audio ADC
Audio DAC
3D surround processing with
Virtual surround
Automatic volume control
Audio I/F
2-D Graphic
De-interlace
VADCx4
HDMI In I/F
Digital TV Demodulator
Analog TV IF Demodulator
TV audio demodulator
HDMI MUX
TMDS251PAGR
5V,3.3V
3.3V,2.5V,1.2V,1.1V
FLASH MEMORY
MX25L3205DMI-12G
3.3V
Common Interface Controller
SPIDF OUT
Keypad
IR
- 27 -
Audio AMP
TDA8932BTW
12V
MT8295
3.3V,1.8V
EARPHONE AMP Headphone
2.5V
Flash MX25L3205DMI-12G
Channel
demodulator
MT5133
3.3V
TUNER
DVB-T
FQD1116ME5V
LGE Internal Use Only
PCMCIA
5V,3.3V