LG 32LB9D - Hdmi; DVI; Check HDCP Error; Check EDID Download; MST3361(IC402) Inputs

LGE Internal Use OnlyCopyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 19 -
EXT
1/2
X260
TP A
Comp 1/2
RGB
CVBS
TP C
TP B / 656
AT/NT/
TUNER
TP
MST
3367
HS,VS
DVI
HS,VS
YCbCr2
YCbCr or RGB
FRC9445H
RGB
CVBS
YCbCr1
DVO
Y/C1, Y/C2
Y/C1, Y/C2
AV1/2
AV1/2
HDMI
1/2/3
TMDS341A
1 : _Check HDCP Error
_Retr y power off and on (TV or S TB/DVD )
_Check MST3361(IC402) HDCP IIC line (#69,#70)
2 : _Check EDID Download
(RX0C-,RX0C+) :
Frequency : Different accordi ng to
form at !!
4 : _Check MST3361(IC402) Outputs
SCL :
SDA :
3 : _ MST3361(IC402) inputs
(RX1C-,RX1C+) :
(Vsync) :
(DE) :
(Clk) :
(Hsync)
59.94Hz
Frequency : Different accordi ng to
form at !!
(Data) :
5 : _Check X 260 (IC101) Inputs
_Sign al sh ape is same (abo ve)
Snow noi se (Whit e dot) ?
Pow er off and on
(TV or STB/DVD)
Video is normal & No Sound ?
Check HDCP Power Pin (IC404),
MST3361(IC402) IIC(#69,#70)
Check M ST3361(IC402) inputs
Pow er, Osc
#25,#26(RX1C-,RX1C+),
#14,#15(RX0C-,RX0C+)
Re-downloa d
EDID(IC406/407/408)
Check M ST3361(IC402) Outputs
V-out (#99) , H-ou t (#98) ,
Clock ( #96) , Data
1
2
3
4
N
Y
N
Y
Y
Check X260 ( IC101) Inpu ts
MST3361_HS(#T6) ,
MST3361_VS(#T5) , Clock ( #P3) ,
Data (30Bit) , DE(#U6)
5
(6) HDMI / DVI