求助！CTP 48伏电源电压检测不到。
 

机器是全胜800系列。
这个是正常时候的：
f 28Mar13 09:47:00.328: <GMCE> +40V 39.72 Volts
f 28Mar13 09:47:00.328: <GMCE> +5V 5.00 Volts
f 28Mar13 09:47:00.328: <GMCE> +3.3V 3.33 Volts
f 28Mar13 09:47:00.328: <GMCE> -5V -5.03 Volts
f 28Mar13 09:47:00.328: <GMCE> Vpp 71.19 Volts
f 28Mar13 09:47:00.328: <GMCE> +15V 14.90 Volts
f 28Mar13 09:47:00.328: <GMCE> Humidity 1.20 Volts
这个是报错时候的：
f 28Mar13 09:38:51.531: <GMCE> +40V 39.72 Volts
f 28Mar13 09:38:51.531: <GMCE> +5V 5.00 Volts
f 28Mar13 09:38:51.531: <GMCE> +3.3V 3.33 Volts
f 28Mar13 09:38:51.531: <GMCE> -5V -5.03 Volts
f 28Mar13 09:38:51.531: <GMCE> Vpp 12.81 Volts
f 28Mar13 09:38:51.531: <GMCE> +15V 14.98 Volts
f 28Mar13 09:38:51.531: <GMCE> Humidity 1.22 Volts
这个是报错的代码：
f 28Mar13 10:35:35.390: <GMCE> (Index=0) *** Error occurred: 44300
f 28Mar13 10:35:35.390: <GMCE> [CEH:Error Code [03572] System: The +48 volt power supply cannot be detected]
f 28Mar13 10:35:35.390: <GMCE> S MIC: (Index=0) Waiting for cancel from workstation

现在机器已经完全启动不了，无法工作！
求各路高人解决！

需要要接地线！接好了再检查一下！