Just started playing all normal, fault play after a period of time, the machine is not stable performance elements, such as poor thermal stability or weld at. Open the lid, 20 minutes after the hand pilot detection integrated on the motherboard CL680, CPU, power adjustment tube, temperature rise is the normal range; measured + 5V, + 10V, + 3.3V, + 14V, 14V voltage is normal. When the fault appears, the shutdown will work for some time, initially suspected CL680 may weld, welding again after the test machine, the fault phenomenon. Then multimeter with long time observation, 10V + 5V, 3.3V voltage, found 3.3V voltage with playing time, first slight fluctuation, then more and more intense, failure finally dropped to 2.2 ~ 3.0V. To determine the 3.3V power supply solution plate by a bad, remove the power supply board carefully check, found that CP11 chip capacitor leakage, replacement troubleshooting.MBJservice manual download site