Philips smartClean JC5106

Thread Starter


Joined Jan 21, 2023
Hello everybody. I have a Philips smartClean JC5106 that broke down. I could of course buy a new one, but I want to learn electronics, so I want to fix this, I love mysteries :)

From the beginning I think the motor FK-180SH-10400 that soak the shaver with fluid burnt down because of bad quality motor from China (again I am guessing).
I ordered a new motor and replaced it, but probably something else burnt out in the circuit. But I do have 1.588 voltage now from the microprocessor when the motor should be running to a what I think is a FET transistor, but I am not sure, I haven't found anything searching for a SMD component called N2GSA. But I assume it is a JFET transistor, so I ordered FDV303N and assumed it will be working. But it doesn't, I think the schematics is very simple, but I cannot get it to work , can you help me?

I attach pictures of the board and the circuit:


Thread Starter


Joined Jan 21, 2023
I can explain more: When everything is working as it should, the motor should run for a few seconds and have a pauses maybe 30 second, this during maybe about 30 minutes. I can hear the motor starts humming when the voltage at the gate is 1.588V, but it doesn't start running, when it is pausing the voltage is near 0V at the gate.

When I put a 1.5V battery between gate and source, the motor starts running as it should.

It seems like the voltage is enough, but not the current (as I understand the FET Gate only needs 0.65 to 1V ) so maybe the current from the micro-controller isn't enough? Maybe the micro-controller is damaged? But couldn't I use the 1.588V in someway to activate the FET transistor anyway? With maybe another transistor that gives enough current?

Here is the specs for the FDV303N:


Joined Feb 24, 2006
Maybe, but there are multiple facets to the situation.

Consider the title of your thread. Is it the sort of title that will draw participants in -- perhaps not. If you don't know what a JC5106 is, it would be an easy thread to ignore. A more descriptive title might go a long way toward generating interest.

The page which describes the sub-forums has statistics on the number of threads and the number of messages. Technical Repair is neither at the top or at the bottom but seems to be in the lower middle. This site has been in existence for about 19 years, but some of the subforums have been more recently added. The poorest performing subforums in terms of number of threads are:
  1. IC Design, 210 Threads, 1.4K Messages
  2. Machine Learning, AI & Neural Networks, 238 Threads, 2.5K Messages
  3. Marketplace, 270 threads, 2.5K messages
  4. Jobs & Career Advising, 390 threads, 4.3K Messages
From this scant empirical evidence, I might conclude the following:
  1. People don't usually come here to buy and sell things
  2. People don't usually come here to ask for jobs or career advice
  3. There are very few hobbyists and enthusiasts here in the field of Machine Learning, AI, and Neural Networks
  4. There are fewer IC desingners here than any other category of site visitor
This particular sub-forum, Technical Repair, has 3.6K Threads, 41.4K Messages and it has not been around for the whole 19 years. I would say that your supposition about the (sub) form being dead is without evidentiary support, despite the fact that nobody has bumped this thread for over a week.