LG 26LK310 - No Raster on PC Signal; No Raster on Component Signal; No Raster on HDMI Signal

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Only for training and service purposes
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No Raster on PC Signal
Check Input source Cable
And Jack
Pass
Re-soldering or
Change the defect part
Pass
Check the Input/Output
Of IC201
Fail
Re-soldering or
Change the defect part,
Check RGB EDID Data
Repeat [A], & [B] Process
Pass
Check the Input/Output
Of J202
Fail
Pass
Check the Input/Output
Of IC800
Fail
Re-soldering or
Change the defect part
Pass
No Raster on COMMPONENT Signal
Check Input source
Cable And Jack
Pass
Re-soldering or
Change the defect part
Check the Input/Output
Of IC800
Fail
Pass
Re-soldering or
Change the defect part
Repeat [A], & [B] Process
Check The Input/Output
Of JK101
Fail
Pass
No Raster on HDMI Signal
Check Input source
Cable And Jack
Pass
Check the Input/Output
of JK301, JK302
Fail
Re-soldering or
Change the defect part
Pass
Pass
Check the Input/Output
of IC300, IC301
Fail
Re-soldering or
Change the defect part
Check HDMI EDID Data
Re-download HDCP
Pass
Pass
Check the Input/Output
of IC800
Fail
Re-soldering or
Change the defect part
Repeat [A], & [B] Process