Estimate the machine there is short circuit or over current phenomenon, make the machine automatic protection. Jchservice manual download site
 Jchservice manual download site
Open look carefully, found the power part of the IC STR6559 warmer, next to a capacitance has charred traces. The IC has a radiator mounting holes, but did not install the radiator. Therefore suspect the failure reasons of capacitance is due to the STR6559 accelerated aging, high temperature for a long time makes capacitance pressure drop, the final breakdown caused by the fault. After replacement of capacitance and give power radiator, troubleshooting.Jchservice manual download site