Nspire电路欣赏

mrlgs · 发表于 2016-11-25 09:41:46

不同时期电路都不同，可拆卸键盘的，屏幕排线38根

又一个可拆卸键盘的，屏幕排线34根

带CAS的CP版本，屏幕排线34根

带CAS的CP版本，屏幕排线38根的

对照的机会都没有

mrlgs · 发表于 2016-11-25 09:45:27

本帖最后由 mrlgs 于 2016-11-25 09:46 编辑

屏幕的布局也不一样，这是34根排线的屏幕布局，很杂乱

这个是38根排线的屏幕布局，明显整齐了很多

zzpt · 发表于 2016-11-25 20:28:41

本帖最后由 zzpt 于 2016-11-25 23:01 编辑

不错没有牛屎芯片

critor · 发表于 2016-11-25 22:33:43

本帖最后由 critor 于 2016-11-25 22:36 编辑

Very interesting. :)

Do you also have the calculator datestamps for each board ?
It's the 6-7 characters code present on the back at the right of the serial number.

Something like X-0000 or X-0000X

Pictures of the back of the main boards would be nice too. ;)

mrlgs · 发表于 2016-11-28 09:22:30

critor 发表于 2016-11-25 22:33
Very interesting. :)

Do you also have the calculator datestamps for each board ?

I am not found Something like X-0000 or X-0000X

critor · 发表于 2016-11-29 00:45:00

X is for a letter, and 0 for a digit.

For example, the datestamp below is P-0413J, as you can read on the right of the serial number :

mrlgs · 发表于 2016-11-29 09:09:21

本帖最后由 mrlgs 于 2016-11-29 09:15 编辑

critor 发表于 2016-11-29 00:45
X is for a letter, and 0 for a digit.

For example, the datestamp below is P-0413J, as you can rea ...

Oh，I see，Such as S-0507，P-1209 I， P0409F ，S-0407？I don't know what the letters stand for.NON-CAS

CAS

doro · 发表于 2016-11-29 17:09:11

会自己修机器啊，可知道CAS屏幕背景灯有没有单独的线

critor · 发表于 2016-11-29 19:31:58

Thank you very much ! :)

mrlgs · 发表于 2016-11-30 09:34:39

doro 发表于 2016-11-29 17:09
会自己修机器啊，可知道CAS屏幕背景灯有没有单独的线

这机器有背景灯吗？不知道啊

mrlgs · 发表于 2016-11-30 13:44:13

critor 发表于 2016-11-29 19:31
Thank you very much ! :)

您有电路图吗

critor · 发表于 2016-11-30 19:27:53

本帖最后由 critor 于 2016-12-2 06:56 编辑

The first letter is the manufactoring site.
P = Inventec (Pudong) Corporation

The last letter if present is the hardware revision.
No letter means it's the 1st released version.
A = 1st hardware revision = 2nd hardware version
B = 2nd hardware revision = 3rd hardware version
... and so on.

Do you have pictures of the other side of the main boards ?
It's usually interesting because that side does have the board reference and the memory chips (SDRAM, NAND and on some revisions NOR).

mrlgs · 发表于 2016-12-1 08:25:57

本帖最后由 mrlgs 于 2016-12-1 08:31 编辑

critor 发表于 2016-11-30 19:27
The first letter the the manufactoring site.
P = Inventec (Pudong) Corporation

Yes，they are also different.CAS

the other one

other...bad

NON cas

s18125757 · 发表于 2016-12-12 23:35:58

楼主你好，想请问一下NSPIRE自己换屏幕麻烦么？需要用到什么材料，还有屏幕在哪里买呢？谢谢

mrlgs · 发表于 2016-12-13 09:00:39

s18125757 发表于 2016-12-12 23:35
楼主你好，想请问一下NSPIRE自己换屏幕麻烦么？需要用到什么材料，还有屏幕在哪里买呢？谢谢

不麻烦啊，看你怎么换了，是换屏幕总成，还是只换液晶啊，屏幕总成的话就是排线40根和38根的区别，如果只换液晶的话，需要3处排线，两处是26根的排线，一处是30根的排线，另外就是液晶屏幕后面的散热铝板双面胶很黏，没有热风枪什么的不好去下来

mrlgs · 发表于 2016-12-13 09:03:02

s18125757 发表于 2016-12-12 23:35
楼主你好，想请问一下NSPIRE自己换屏幕麻烦么？需要用到什么材料，还有屏幕在哪里买呢？谢谢

屏幕总成换起来是相当容易了，即使没有排线的话，手工飞线也用不了一个小时就能搞定，只换液晶就麻烦了，先要把旧的分离，很费事，三处排线，操作不当很容易排线弄断的

将这家伙 · 发表于 2017-2-1 16:22:50

zzpt 发表于 2016-11-25 20:28
不错没有牛屎芯片

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