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华为Mate20Pro 原厂图 维修流程图 前摄像打不开故障
2023年12月6日发(作者：普从灵)
mate20 pro TOP故障维修指引V1.0返回目录前摄像打不开故障维修流程图前摄像打不开故障全景图实物测量点TOP面6/20/24二极体分别为0.57V/0.54V/0.37V目检J2002及相关元件外观是否OKN更换不良元件121YJ20022423交叉摄像头验证主板是否OKY结束11/13N量测SCAM_CSI1_CLK_N_A(PIN11)SCAM_CSI1_CLK_P_A(PIN13)二极值是否OK
21/23二极体均为0.53VBOTTOM面1.二极体均为0.82VN排除小料损坏后更换U3001N排除小料损坏后更换U300量测ISP_SDA1(PIN21)ISP_SCL1(PIN23)二极体值是否OKY2.3.量测ISP_CLK1_SCAM(PIN6)GPIO_017_SCAM_RST_N(PIN20)VOUT21_CAM_IOVDD_1V8(PIN24)二极体值是否OKYN排除小料损坏后分别更换U300/U1000依次更换J2002/U1000/U300返回目录2018/11/26第1页，共1页
2023年12月6日发(作者：普从灵)
mate20 pro TOP故障维修指引V1.0返回目录前摄像打不开故障维修流程图前摄像打不开故障全景图实物测量点TOP面6/20/24二极体分别为0.57V/0.54V/0.37V目检J2002及相关元件外观是否OKN更换不良元件121YJ20022423交叉摄像头验证主板是否OKY结束11/13N量测SCAM_CSI1_CLK_N_A(PIN11)SCAM_CSI1_CLK_P_A(PIN13)二极值是否OK
21/23二极体均为0.53VBOTTOM面1.二极体均为0.82VN排除小料损坏后更换U3001N排除小料损坏后更换U300量测ISP_SDA1(PIN21)ISP_SCL1(PIN23)二极体值是否OKY2.3.量测ISP_CLK1_SCAM(PIN6)GPIO_017_SCAM_RST_N(PIN20)VOUT21_CAM_IOVDD_1V8(PIN24)二极体值是否OKYN排除小料损坏后分别更换U300/U1000依次更换J2002/U1000/U300返回目录2018/11/26第1页，共1页
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