Don't boot instantaneous bright, there is sound image after the automatic shutdown. JfQservice manual download site
Boot instantaneous bright, have sound image automatically after shutdown, lights flashing, the first thought should be detected by the CPU, protect the moment lost or CPU working conditions. JfQservice manual download site
Measuring CPU protect the foot protection potential conditions was established, that is not to protect. SDA and SCL voltage are normal, the data is not affected, so it must be instant loss caused by the CPU working conditions don't boot, so the precision measuring potential CPU working conditions found IC1001 into potential 5 v is normal, the output voltage of 5 v is low, judge IC1001 damaged, replace IC1001 troubleshooting. JfQservice manual download site
 JfQservice manual download site
 JfQservice manual download site
Boot instantaneous images, sounds, and then protect downtime, should first CPU working voltage measurement and protection potential.JfQservice manual download site