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42SL90QR-MA (CHASSIS:LP91L) - LG TV Service Manual (repair manual). Page 30

Read LG 42SL90QR-MA (CHASSIS:LP91L) Service Manual online

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 IC100
Fail
Re-soldering or 
Change the defect part,
Check RGB EDID Data
Repeat [A], & [B] Process
Pass
Check the Input/Output
Of J104
Fail
Pass
Check the Input/Output
Of IC800
Fail
Re-soldering or 
Change the defect part
Pass
SL90 Series
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