LG 26LG3000 - Main Board; Block Diagram

Copyright©2008 LG Electronics.Inc.All right reserved - 27 - LGE Internal Use Only
Only for training and service purposes
BLOCK DIAGRAM
1. Main Board
5V
Power
3.3V,2.5V,1.8V,1.2V,1.1V
IR
Headphone
A
udio AMP
TDA8932BTW
12V
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
3.3V,2.5V,1.2V,1.1V
Power
Board
16
Common Interface Controller
MT8295
3.3V,1.8V
PCMCI
A
5V,3.3V
D-SUB/PC-
V
G
A
SCART
HDMI 1
HDMI 2
HDMI MUX
TMDS251PAGR
5V,3.3V
Audio R/L of CVBS
Audio R/L of PC
Y
PbPr/L/R
S-
V
ideo
Keypad
Channel
demodulator
MT5133
3.3V
TUNER
DVB-T
FQD1116ME5V
FLASH MEMORY
MX25L3205DMI-12G
3.3V
Flash MX25L3205DMI-12G
DDR SDRAM
HY5DU121622DTP-D4
3
2.5V
SPIDF OUT
2.5V
EARPHONE AMP