Machine model: Skyworth LCD TV 32L01HM LCD color TV failure phenomenon: the ambient temperature is below 15 degrees, the machine is difficult to cold start.
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Disassemble check: Found that the power supply voltage +300V is normal, the secondary power supply is very low, and the multimeter pointer is jittery. Power outage, remove the cover plate of the secondary heat sink, see that 10V/680uF has burst, replace a 25V/1000uF capacitor, the boot picture sounds normal.
Fault analysis: This machine is difficult to start cold. The reason is that the +5V 10V/680uF capacitor is out of capacity. This capacitor is close to the heat sink. In addition, the user has a long viewing time, the heat dissipation is not good, and the capacitor is smoked for a long time. .
Suggestion Tip: I have repaired too many machines, and the machines with cold start are the first to check the main secondary power supply, and have doubtful capacitors or replacement; I have received good results. Specifically, this is an example. 
