TI 83 premium CE ne s'allume plus

[skynalix]

Bonjours j'ai acheté une calculatrice TI 83 premium CE au début de l'année scolaire je l'ai sorti de mon sac et la il ne s’allume plus!
Quand j'appui sur "ON" l’écran s'allume mais s’éteint directement. J'ai enlevé la batterie j'ai fait un reset et j'ai fais toutes les solution de ce topic:
viewtopic.php?t=7266
sauf la dernière solution car je ne sais pas comment faire. Merci

[sautax]

As-tu essayé de la charger ?

[Wistaro]

Bonsoir,
Le tutoriel à suivre est celui-ci: viewtopic.php?f=63&t=19077

As-tu tenté toutes les solutions ?

[skynalix]

Ah merci beaucoup sautax je sais pas pourquoi mais il avait vraiment plus de batterie méme si ce matin il était complet mais merci beaucoup

[Dmytro H.]

Hello, I hope my English can help to communicate.
I've got a nice calculator TI-83 Premium CE Edition Python. And it does not turn on. At all, no reaction on any move. A brick.

TI Connect does not see it either. I tried several fix scenarios from this forum but no one helps.
The calc is new, no one touched it at least inside before me.
The accumulator is charged, I also tried other sets of batteries to try different voltage from 3.7 to 4.2 V.
The only reaction I can see is the power consumption: 4.43 mA if do nothing and 4.49 mA when press and hold "On" or "Reset" buttons.

As for me one of resistors (or something else) does not look good, it is D07 on the board.
Just FIY the resistance between the zones of its legs is about 1.5 MOm
Maybe someone can help if this can be a problem and what should be on its place.

[Adriweb]

Just to be on the same page regarding hardware revisions, can you tell us the parts on the right after the serial number?


From what I can see in the dates on the PCB, I suppose yours would be L-0622W or close to that ?

We have PCB pics from such recent revs (rev V, rev W), although I'm not sure if there's any visible label on normal D07 anyway that could help identify its properties...

[Dmytro H.]

Thanks for replay.
1055020799 L-0522V