As the machine power panel flyback circuit work abnormal, not 5 v output; And light plate element damage will appear the Power light is not bright. But the latter remote control switch is not failure, so the decision is the power board is no 5 v output. g8Yservice manual download site
 g8Yservice manual download site
Open the rear cover, observe the power board, found QI3, QI1 burned, F202 burned, no obvious signs of damage to other circuits. Related circuit impedance measured using multimeters, T13 - PIN5 copper welding feet appear rupture phenomenon (poor contact). To replace the broken copper welding, QI1, after QI3, F202, TV back to normal.g8Yservice manual download site