SONY KDL-40S4100 MAIN BOARD DIY FIX

SONY KDL-40S4100 EASY DIY FIX ( STEP BY STEP GUIDE FOR LED LCD TV )

with TV problem / symptoms: 

The TV would powers on and the Sony logo lit up and green “ power-on light came on but no picture or sounds and it automatically turn off and on again – It is a main board problem.

Note: Other TV problems and symptoms that are different above are not covered by this DIY repair manual