Eşyalarını Tamir Et Topluluk Mağaza

The Oral-B Triumph v2 is an electric toothbrush series. Models include the Oral-B Black 7000 (depicted and used in the guide) as well as brushes with types 3761, 3762, and 3764.

6 Soru Tümünü görüntüle

Seçenekler

Runs down and stops in about a second

My toothbrush runs down and stops in about a second. I fixed the problem a few months ago by unsoldering and then resoldering the battery. I have checked the battery voltage during the switch on, slow down and stop phase and it remains constant at about 3.7V so there would seem not to be a problem with the battery. When the problem occurred before I found that bypassing the MOSFET caused the motor to run normally at full speed, so this seems to be a microprocessor issue. I have tried resetting the brush by holding the power button for ten seconds. There is no water inside.

Bu soruyu yanıtla Ben de bu sorunu yaşıyorum

Bu iyi bir soru mu?

Evet Hayır
Puan 1
Yorum Ekle

2 Cevap

Filtre ölçütü:
En Faydalı En Yeni En eski
En Yararlı Yanıt

Seçenekler

Fixed - there is a polyfuse marked PP which is Bourns MF-PSML300 rated 3A and it was dropping several volts. Bypassed fuse with multimeter on current setting, toothbrush works and meter reads 0.5A so fuse clearly faulty. Bridged fuse with solder for permanent fix. It is possible to buy replacement fuses but they are expensive and not easy to fit.

Bu yanıt yardımcı oldu mu?

Evet Hayır
Puan 2
Yorum Ekle

Seçenekler

bypassing a fuse is never a good idea for a long term solution. SMD parts are not simple, but this part is big so it should not be a big problem.

These are 0.18¢ each - min quantity 10.

https://www.aliexpress.com/item/22518327...

Bu yanıt yardımcı oldu mu?

Evet Hayır
Puan 0

2 Yorum:

I had the same problem with a similar OralB toothbrush. It would charge and start, but run down in 1-2 seconds. Battery seemed fine, but the polyfuse measured 3-4 Ohms. That's completely out of spec. So I replaced it with a tiny strand of wire. Works again as before.

Thanks for the pointer!

tarafından

That's a 1206 package, OEM is an 0805

tarafından

Yorum Ekle

Yanıtını ekle

Tim sonsuza kadar minnettar olacak.
İstatistikleri Görüntüle:

Son 24 Saat: 15

Son 7 gün: 142

Son 30 gün: 639

Her zaman: 7,436