如何检测硬盘内部短路.doc

Department: CSO 附件一:PCBA - EOS TEST MEASUREMENT NO: MF001-ASTANDARD OPERATING REV: A PROCEDURE PAGE: 1 OF 4 DOCUMENT GENERATED FROM ECRREVISIONORIGINATORDESCRIPTION OF CHANGESRev AKeanPeng LimNew released CURRENT REVISIONSEAGATE TECHNOLOGY CONFIDENTIAL (All printed copies are UNCONTROLLED)Department: CSOPCBA - EOS TEST MEASUREMENT NO: MF001-ASTANDARD OPERATING REV: A PROCEDURE PAGE: 1 OF 4 SCOPE: To provide the impedance measurement test step for customer.范围：为客户提供阻抗测试步骤A. Tools工具: 1. Digital multimeter - One set 数字万用表1 台 2. SATA DC power cable - One set SATA 直流电源线 1台B. Impedance reading Spec: 阻抗读数标准： PCBA short circuit for +5V = Equal or less than 2000 Ohm PCBA+5V 短路小于等于 2K short circuit for +12V = Equal or less than 2000 Ohm PCBA+12V 短路小于等于 2KC. Impedance test (+5V and +12V) Mmeasurement Process For Pata Drive PATA 硬盘(+5V and +12V)阻抗测试 1. Adjust the multimeter selection switch to Ohm range 将万用表调为欧姆档 2. Measure the 5V point impedance test by attach the multimeter probe pin (positive)to PCBA +5V pin point and negative probe to ground/screw hole(Refer to Figure A) 5V 阻抗测试，用万用表的正极探针（红色）接触 PCBA 板 5V 针脚，负极接地或螺丝孔，如图 Figure A 所示 3. Read the impedance reading at multimter, the ohm meter reading must be greater or equal to 2000 Ohm. Ohm reading equal or less than 2000 Ohm are categorized as short circuit. 读取万用表数值，阻值读数一定要大于等于 2K。读数小于 2K 判定为短路 Department: CSOPCBA - EOS TEST MEASUREMENT NO: MF001-ASTANDARD OPERATING REV: A PROCEDURE PAGE: 1 OF 44. Measure the 12V point impedance test by attaching the millimeter probe pin (positive )to PCBA 12V pin point and negative probe to ground/screw hole(Refer to Figure B). 12V 阻抗测试，用万用表的正极探针（红色）接触 PCBA 板 12V 针脚，负极接地或螺丝孔，如图 Figure B 所示 5. Read the impedance reading at multimter, the Ohm meter reading must be greater or equal to 2000 Ohm. Ohm reading equal or less than 2000 are categorized under as short circuit读取万用表数值，阻值读数一定要大于等于 2K。读数小于 2K 判定为短路 D. Impedance test (+5V and +12V) Measurement Process For Sata Drive SATA 硬盘(+5V and +12V)阻抗测试过程1. Adjust the multimeter selection switch to Ohm reage 将万用表调为欧姆档 2. Plug in the SATA connector set onto drive pcba (Refer to figure D). 将 SATA 电源线插入 PCBA 板，如图 figure D 所示 3. Measure the 5V point impedance test by attaching the multimeter probe pin (positive) to connector +5V pin point and negative probe to ground/screw hole(Refer to Figure D). 5V 阻抗测试，用万用表的正极探针（红色）接触电源线 5V 针脚（红色线），负极接地或螺丝孔，如图 Figure D 所示Department: CSOPCBA - EOS TEST MEASUREMENT NO: MF001-ASTANDARD OPERATING REV: A PROCEDURE PAGE: 1 OF 44. Read the impedance reading at multimter, the ohm meter reading must be greater or equal to 2000 Ohm. Ohm reading equal or less than 2000 Ohm are categorized as short circuit. 读取万用表数值，阻值读数一定要大于等于 2K。读数小于 2K 判定为短路 5. Measure the 12V point impedance test by attaching the multimeter probe pin (positive) to connector +12V pin point and negative probe to ground/screw hole(Refer to Figure E). 12V 阻抗测试，用万用表的正极探针（红色）接触电源线 12V 针脚（黄色线），负极接地或螺丝孔，如图 Figure E 所示 6. Read the impedance reading at multimter, the ohm meter reading must be greater or equal to 2000 Ohm. Ohm reading equal or less than 2000 Ohm are categorized under short circuit 读取万用表数值，阻值读数一定要大于等于 2K。读数小于 2K 判定为短路 7. Unpl