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设备名称：GE MR 机器型号：EXCITE HD 1.5T 关 键 词：错误代码2223621、2223849 系统启动超时 故障描述(信息查看)： 1.机器在扫描期间报错：224862 The GP is reporting a SGA Power Supply Under Voltage Fault. 2.之后做TPS不通，重启 3.系统超时，依次报错： 2223621 Internal Software ERROR.Can’t callback on undefined NMRID:SCT 2218574 Communications have failed. Please try again. 2252106 Diagnostic software error. Failed to determine hardware state for AGP board within 2- seconds. The board may be busy loading vxWorks or may be hung. Also check the serial cable for the board and the serial terminal server. 2223849 AGP/SCP/APS EPROM poewr-up boot failed.Verify that MCP750 boards are installed and seated properly for APS and AGP. 故障诊断(分析)： 1.从主机上ping APS板通，ping AGP板不通，ping SCP板通，ping Term Server通; 2.去设备间发现AGP板上的四个灯都不亮，正常情况下AGP板和APS板上的灯应该同闪烁(如下图); 3. 随后用笔记本连接Network Switch，并pingAPS板，AGP板，SCP板，Term Server只有AGP板不通; 4. 对Network Switch上与APS，AGP，SCP相连接的网线依次进行检查正常; 5. 随后对Term Server断电重启设置并测量电源电压12V均正常; 6. 最后对MGD柜进行最小化，并对各个板子逐一插入检查，只有当IRF板插入后，AGP板上的灯就会不亮且无论从主机还是Network Switch上pingAGP板都不通。 故障解决： 更换IRF板后，观察AGP板和APS板上的灯同步，且都可以ping通，重启系统正常，TPS通过，扫描正常。
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