Samsung SP43T6HP starting power supply is normal, light green, according to the remote control indicator light turn red flashing, after a few seconds to green. The main pull power followed by a 109 v to 0 v. G54service manual download site
Picking up the check found during the red light flashing the HD end of the main pull no conduct switch signal output, line drive not working. Is caused by the main pull 13.5 V circuit break. Then pick up check carefully, and found a place where the main pull no ST - 5 V voltage.G54service manual download site