philips brilliance16

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<p><span><span>故障现象：伪影&nbsp;</span></span></p><p><span><span>查看病人图像</span> <span>并做空气校正伪影在中间</span> <span>如下图</span></span></p><p><span><span></span></span><br  /></p><p><p><img src="image/20201019/57ca40902813399820e81d60804f55b1_1.png" /></p>&nbsp;<p><img src="image/20201019/efc73949982ade5e571711ed18e175dd_2.png" /></p></p><p><p><img src="image/20201019/fb626e2e5f53f047e549f021386edab8_3.png" /></p></p><p><span><span>（登陆</span>philips_service <span>密码</span><span>service_only</span><span>）点击</span><span>ScannerApplication</span><span>，进入维修模式下应用程序启动，选择空气校正的图片测试，点击下图红色圆圈找</span><span>physical analys&nbsp;</span></span></p><p><p><img src="image/20201019/140c9c4a8f50077c8f1c3ed2097a2870_4.png" /></p></p><p><p><img src="image/20201019/340b69e38a33892e8d629486d315d22d_5.png" /></p></p><p><p><img src="image/20201019/fe921e839f92b8a0b3bc1b82bf5b4aca_6.png" /></p></p><p><span><span></span></span></p><p><span><span>（</span></span><span><span>图</span>2<span>点击</span><span>Archive</span><span>等一会后点击</span><span>Raw\Bias </span></span></p><p><span><span>出现图</span>3<span>，中间那点击</span><span>Sli'ces</span><span>后选</span><span>Plot)</span></span></p><p><span>&nbsp;</span></p><p><span><span>会出现下图测试结果</span></span></p><p><p><img src="image/20201019/31f5005974e9f83690ee35d15f11fbb7_7.png" /></p></p><p><span><span>看测试结果图</span>7<span>指向为第</span><span>22</span><span>块有问题，机架断电，打开前盖。</span></span></p><p><span><span>拆下探测器外壳</span></span><span><span>（需要</span>3/16<span>内六，长约</span><span>25cm</span><span>的要不然拆不了）</span></span></p><p><span><span>将第</span>22<span>块与第</span><span>2</span><span>块更换 如图</span><span>8</span><span>，并做空气校正故障依旧，又将与第</span><span>40</span><span>块更换伪影还是没有发生变化，排除模块自身问题，又更换与</span><span>22</span><span>块连接的母板下图</span><span>9</span><span>。（</span></span><span><span>注意：更换母板时注意排线，和拆螺丝</span></span><span><span>），更换后进行测试</span> <span>图像伪影还是没有变化。</span></span></p><p><p><img src="image/20201019/fcec247b7223e536f539bbaa8da1b17b_8.png" /></p></p><p><p><img src="image/20201019/044cbea3e2fb1856eeeb82b3d6ce9179_9.png" /></p></p><p><p><img src="image/20201019/e41e952bd72492d29cbf0d888fd07764_10.png" /></p></p><p><span><span>怀疑</span>RCOM<span>板故障，更换上</span><span>RCOM</span><span>板上图</span><span>10</span><span>，后做空气校正后伪影消失，观察俩天做病人再无出现伪影。</span></span></p><p><br  /></p>