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求EMMC引脚功能图

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发表于: 2018-9-28 10:53:46
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液晶电视EMMC飞线图不好找。论坛里有师傅说拆下EMMC顺着引脚找,可拆下一看PC板上没有标功能脚。还有是否所有品牌型号的EMMC引脚排列都一样?请师傅们赐教。哪位师傅有EMMC引脚功能图,请分享出来,谢谢!
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发表于: 2018-9-28 18:08:28
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看一下这个EMMC图吧

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发表于: 2018-9-28 19:32:16
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谢谢楼主分享的资料
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发表于: 2018-10-1 17:42:45
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Hi.
I have attached a schematic pdf with markings on the important points for a successful read and write. Keep your RT809H fly-leads at 10 centimeters length or less. connect both ends of the main crystal (in & out ) to ground .3 Crucial points-(CLK , CMD & D0 ). In most cases the CLK - has a missing chip-capacitor , CMD - always close to clock & D0 - one of the resistors 6-8 resistors lined up around the NAND chip. This is just general.
It is best to obtain service manuals for the set you are doing though its not always easy(some set makers now only give block diagrams ). I can see another Master helped you with Nandchip pin out , thats great help too.
Please search for more emmc tutorials on this site, read from other Masters's Experiences from iFix. you will come right. You can post a photo on the board you are doing, i am sure you will get a lot of masters to help with the points.

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发表于: 2020-1-23 22:38:52
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Can you disconnect the CLK chip resistor linking the emmc and cpu. CLK white wire remains  linked to the emmc chip only.M sure you will come right.
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