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3. Digital TV Video Trouble Shooting
Overall Block Diagram
for Brazil DTV (LH70)
Component 1
Component 2
D-sub RGB
Audio L/R (for RGB)
JACK BACK
JACK BACK
HDMI 1
at REAR
at REAR
HDMI 2
HDMI 3
Digital Audio (Optic)
RS-232C (Ctrl./SVC)
Bluetooth Module
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TU_SCLK, TU_SDATA, TU_SYNC
TU_CVBS_IN
TU_SIF
SDA0/SCL0_3.3V
RF_Switch, Gain_Switch
CVBS, L/R, AV_DET
AV1
SIDE_CVBS, SIDE_L/R, SIDE_DET
AV2
Y Pb Pr, L/R, DET
Y Pb Pr, L/R, DET
RGB/H/V
Audio L/R
3x1
HDMI Switch
SPDIF
RX/TX
MAX3232
DP1/DM1
DP2/DM2
USB
O.C. Protector
+5V
Reset Switch
Reset IC
X-tal
BCM3556
BCM3556
(Brazil)
(Brazil)
RX/TX
USB_DM1
USB_DP1
USB_DM2
USB_DP2
+5V
54MHz
DDR2(256Mbit)
Qimonda/Hynix
LVDS
FRC IC
(MST7323S)
FRC Block
FRC Block
X-tal
12MHz
DDR_Data[0:15], DQS, DM ...
DDR2 (1Gbit)
Elpida/Hynix
Addr.[0:13], ctrl. data
DDR2 (1Gbit)
Elpida/Hynix
Data[16:31]
Data [0 ... 7]
NAND Flash
CS ,RE,WE......
(512Mbit)
Digital AMP
I2S
NTP3100L
SCL, SDA_3.3V
NVRAM
MICOM
SCL, SDA_3.3V
(MTV416GMF)
CLK,TDI,TDO,MS,RST
JTAG
LCD Module
(FHD, 120Hz)
X-tal
24MHz
LGE Internal Use Only
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