Konka LC-TM2620 LCD TV black screen - appliance repair

Electronic scale crystal oscillator 3.2*2.5mm 3225 16M (16.000MHZ) 12PF 10PPM 20PPM 30PPM
Heng Jiaxing AO3401
Brand AVX TPSE226M035R0125 Low impedance tantalum capacitor AVX 22

Konka LC-TM2620 LCD TV black screen check backlight power supply is normal, check PBACK = 0V, it seems that the motherboard has a problem. Check the motherboard CPU for DC-DC: U802 look at the picture IMG20151113131603_meitu_1.jpg
The amount of U802's 3-pin to ground resistance = 0 ohms, check VD802 short circuit, after replacing the new VD802, the screen will be on for about 15 minutes.
Check C814 again, C850 is no problem, after C813, everything is normal.

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