42LV555H (CHASSIS:LA05E) - LG TV Service Manual (repair manual). Page 41

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xxLD555H-UA Block Diagram
BCM3549XSP
(B2)
NVRAM
(512Kb)
DDR2
1Gb x4
NAND 
Flash 4Gb
SPK X 2
NTP7100
IC301
AMP
I
2
S
PC L/R
Component
RGB
HDMI1
USB
I
2
C
SPIF
LED
Module
LVDS(8bit)
PC Audio IN
Comp Audio IN
RGB IN
IR Receiver
Component
IN
USB IN
HDMI1
HDMI2
HDMI2
HBU IC
(IC1300)
LAN1
LAN2
TI PTC
(IC501)
FRAM
Switch
UART
RJP
Tuner
bLAN
VSB IC
(LGDT3305)
TI PTC
(IC501)
Pro:Idiom
(LG1001)
Video
S/W
Rear AV IN
Side AV IN
MPI/SPI
IR out
Game
25MHz
32.768KHz
54MHz
27MHz
25MHz
27MHz
533MHz 
74MHz
160MHz 
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