新版Nspire CAS Clickpad拆解

chsi

这里拆的是我去年年底在美国亚马逊入手的美行全新Nspire CAS。和Datamath之前公布的拆机图相比，PCB设计上存在较大区别。此机采用了和Touchpad一样的TI-NS2007C主控芯片，PCB整体布局也和Touchpad差不多。图片为手机拍摄，画质比较一般，请大家见谅。

生产日期不详，不知从哪里可以看出？

Nspire CAS PCB背面

Nspire CAS PCB正面

显示板

FPC连接器特写

键盘板

killbig321

主要是电源部分简化了，提高了可靠性，新版的可靠性更好

critor

Very intereting find.

Maybe I have not understood everything, but do you have the back case with the serial number?


The production date and hardware revision is encoded with 6-7 characters on the right (the datestamp).

For exemple:

Datestamp here is P-0210A, meaning:
- factory code P
- february 2010
- hardware revision A

Could you give us the datestamp of your CAS?
It could help us very much.

Thanks.

chsi

critor 发表于 2012-12-12 04:29
Very intereting find.

Maybe I have not understood everything, but do you have the back case with  ...

Hi Critor{:biggrin:} ,

Yes I do. The datestamp says "P-1009I". I applied some highlighter ink there to make it a little more visible in the photo.

Datastamp

Just in case the machine translation doesn't work that well, here goes the translation of my original post:

Shown in the above photos is an Nspire CAS Clickpad I purchased from Amazon US at around the same time last year. When disassembled, the PCB turned out to be quite different from what's given on Datamath; The marking on the chip reads "TI-NS2007C-1 CAS", and the layout closely resembles that of the Touchpad version. The photos were taken using my phone, and I apologise for their poor quality.

masterli

按键是什么样的啊