如何检测硬盘内部短路.doc

1、Department: CSO 附件一:PCBA - EOS TEST MEASUREMENTNO: MF001-ASTANDARD OPERATING REV: APROCEDURE PAGE: 1 OF 4DOCUMENT GENERATED FROM ECRCURRENT REVISIONSEAGATE TECHNOLOGY CONFIDENTIAL (All printed copies are UNCONTROLLED)REVISION ORIGINATOR DESCRIPTION OF CHANGESRev A KeanPeng Lim New releasedDepartment

2、: CSOPCBA - EOS TEST MEASUREMENTNO: MF001-ASTANDARD OPERATING REV: APROCEDURE PAGE: 1 OF 4SCOPE: 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 setSATA 直流电源线 1 台B. Impedance reading Spec:阻抗读数标准

3、：PCBA short circuit for +5V = Equal or less than 2000 OhmPCBA+5V 短路小于等于 2Kshort circuit for +12V = Equal or less than 2000 OhmPCBA+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

4、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 g

5、reater 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 MEASUREMENTNO: MF001-ASTANDARD OPERATING REV: APROCEDURE PAGE: 1 OF 44. Measure the 12V point impedance test by attaching the milli

6、meter 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

7、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 t

8、o 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: CSOPCB

9、A - EOS TEST MEASUREMENTNO: MF001-ASTANDARD OPERATING REV: APROCEDURE 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. Me

10、asure 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

11、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. Unplug the SATA cable connector out from drive pcba once confirm the reading 确认阻值后从 PCBA 板上拔下 SATA 连接线SEAGATE TECHNOLOGY CONFIDENTIAL (All printed copies are UNCONTROLLED)