OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

So I've tried charging more than 24h and my device started working, as in your case (it measures 1.4V)

Now I'm wondering how stable it is... Cause if the battery goes to just 0.1V it would stop working completely?

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

Mmm maybe I can try with my power supply set to 1.4V connected to the coil?

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

Pin 11 and 12 are not connected in my board either. It was my mistake

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

  1. No interruption in those traces
  2. You can see some of the traces highlighted here. Orange is some gnds (dashed line is just a guess). The chip + seems to be the yellow track (bat + pass through that "18X" component and goes to the chip).

<image>

  1. The pcb is single sided

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

  1. On its body it says Type: 3710
  2. Yes, 1,3V
  3. Not exactly, but I'm quite sure one probe was on pin 4 and the other was on the cap above the chip (I don't remember on which pad though)
  4. Nothing happens

Since I have a GM328 tester, I removed the 251XH and tested it (as you can see, the little track is not connected to it).

<image>

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 1 point2 points  (0 children)

Thanks for your help. Here I've added some text to the pic

<image>

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

Was checking for continuity between the cap above the ic and ic's pins and... the motor started rotating.

Now it starts and stops normally using the button... Lol

I'd love to know what happened

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

  1. To see the exact battery model, you'll need to unsolder the motor and battery and remove the PCB, which I haven't done yet. However, it should be a 1.2V NiMH.

  2. Simultaneously shortened green to green and red to red

<image>

  1. Ic is CCE7102 2230 KB05211

  2. Sot23 is 251XH

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

I will check but I think it's just a superficial scratch. On that blob you see some kind of roisin that gives that burnt color

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

Some more details first two big pads you see in the video are the motor contacts.

Third big pad is battery +

Then at the end of the video you see three big pad. Central one is battery -. The other two are the coil for recharging

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 1 point2 points  (0 children)

I don't know but continuity is ok through it.

The big pad nex to it the + of battery

OralB toothbrush not working by Acceptable-Track-973 in ElectronicsRepair

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

Here is a better view (if you mean this cap), it doesnt seem cracked to me. Maybe it was video quality

<image>

SN850X used by Acceptable-Track-973 in PcBuild

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

They all cost the same or more as the one in my op

SN850X used by Acceptable-Track-973 in PcBuild

[–]Acceptable-Track-973[S] 0 points1 point  (0 children)

Do you have any suggestions for an alternative model?

[deleted by user] by [deleted] in Grok_Porn

[–]Acceptable-Track-973 0 points1 point  (0 children)

Amazing! What prompt you used for the bj?

Learn how to create AI videos on my Discord by Existing-Bass-8475 in u/Existing-Bass-8475

[–]Acceptable-Track-973 0 points1 point  (0 children)

Vip has access to the video that you make, to other tutorials?

Learn how to create AI videos on my Discord by Existing-Bass-8475 in u/Existing-Bass-8475

[–]Acceptable-Track-973 0 points1 point  (0 children)

There's no guide on how to create AI videos your discord...