Open the back cover and found insurance tube FH602 (3.15 A) is open, A backlight drive control circuit boards are short circuit fault. Multimeter is detected in 17 stitches (normal parameters, see table), (11) foot (TRANS_R) was found, reverse resistance is very small, judge the M2 (4502 c) has been breakdown. The SOP - 4502 c 8 encapsulation, internal composite a pair of similar parameter P channel and n-channel MOSFET field-effect tube, if you can't buy, available FDS8958A replacement. After M2 insurance tube change new, troubleshooting.43Nservice manual download site