Block Diagram - LG 42PC1DA Service Manual

R/C IN
R/C OUT
Rx0/1, T x0/1
RS232
ICL3232C
RGB_PC/DTV
H/V(RGB)
RGB
74HC14D
(PC/DTV)
SCL/SDA
24LC02BT
PC_Audio LR
PC_ Audio
Rx0/1/2/C •
HDMI
(PC/DTV) SCL/SDA
24LC02BT
For DDC_HDMI
Comp (Y/Pb/Pr)
Comp
Comp_L/R
TV_out (CVBS/L/R)
Comp
Scart1
AVin1 (CVBS/L/R/Scart_ID)
(DVD/DTV)
MNT_out (CVBS/L/R) ,SOUND MUTE
Scart2
AVin2 (YC/CVBS/L/R/Scart_ID)
DTV_out (CVBS/L/R)
DTV OUT
AV AVin4(CVBS/L/R)
YCin4
S-AV
I C
2
Variable_L/R
TU_Main
Tuner
AM _Audio
Spliter
SIF
ANALOG
IN
OUT
Tune r
I 2 C
SPDIF OUT
DIGITAL
74LCX157 SPDIF_out_A
SPDIF_out
SPDIF_out_B
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IR/TX
74LCX157
RS232_Rx/T x_STi
RS232_Rx/T x_Hud
RGB H/V
For DDC_RGB
HDMI_Data 24bit_A
Sil9012
/
TMDS Rx
H/V SYNC,CLK,DE 4bit
/
(HDCP)
Comp
Scart_RGB / FB
I 2 C
CXA2069Q
A/V Switch
V_out1
DTV_LRout
Y_in1
TV_LRout
AVin5 YCin5
SN74
AV S-AV
LVTH541 LVTH541
Side-AV B D
74LVC541
T.S 7 , SYNC,CK,VALID
74LVC541
I 2 C
CVBS
RS232_Rx/T x_Cortez
RGB H/V
Hudson
/
24bit_B
( Sub CH.
Decoding /
I 2 C
2D Comb /
2D De-int. /
Scaling )
24bit_A
Wired-or 8bit
27M CLK
V or Y / C (Sub)
V or Y / C (Main)
I S (HDMI Sound) 3bit PC_Audio L R
2
AV_LR
AM _Audio, SIF
I S (DTV Sound) 3bit
2
DTV_LRout
TV_LRout
L_SPK_out
TAS5112
R_SPK_out
Digital Amp
SN74
74LVC 74LVC
4M BYTE
541 245
FRESH
MEMORY
/
YCbCr 656 Format _8bit
/
STi5100
I 2 S
, 27M CLK _4bit
CVBS
RS232_Rx/T x_STi
HY5DU281622E
DDRRAM (128MB X2)
Cortez
AM 29LV
F-ROM (2MB)
( Main CH.
LVDS_31P
Decoding /
/
3D Comb /
3D De-int. /
Scaling & FRC /
PIP Mux. /
Tx0/1/2/3/C •
GUI /
Disp_En
VSB Decoding /
SCL /SDA
Audio Delay /
CPU )
HDMI_Data 24bit_B
I S
2 I 2 S
H/V SYNC,CLK,DE 4bit
SPDIF_out_A
Comp_L/R
MSP4410K
Audio SW & EPF_R/L
Tone Control
I 2 C
Variable_L/R
LRCK/LRCH
I S
2
SCK
L_CH
NSP2100A
L_CH
PWM Mod .
R_CH
R_CH
CI SLOT
27MHZ
CRYSTAL
HY5DU561622D
DDRRAM (256MB)
SPDIF_out_B
URAT_DATA_IN/OUT