长城MG95+电源板2个电阻炸焦。请问是多少啊

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这机子拿来故障是不开机。。拆后发现场管烧坏。S极电阻炸短路。还有2个电阻烧焦。。整流管2个坏。电源PWM坏。保险断。。
维修跟换保险。。整流管用2KBP10整流桥替换。。电源PWM跟换LD7575PS。。场管原来是STK0765跟换为K2645..S级电阻0.22欧水泥电阻。跟换光耦原型号817C跟换PC123。上电空载输出5V和12V正常。。装机后试机。。开10分钟左右自动断电。。电源灯不亮。。拔下电源插头再插有能用几分钟后又掉电。。。我想是不是S极连地那2个电阻没接造成？？请问这2个电阻是多少大的？？板子的版号是CGCPOM9BG4 ver.211

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长城MG95+电源板2个电阻炸焦。请问是多少啊

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