Spectra S1+ Breast pump - No suction

[petehall347]

Re: Spectra S1+ Breast pump - No suction

she is maybe too busy doing things the natural way .

[caphair]

Re: Spectra S1+ Breast pump - No suction

I never heard back from her after my suggestion of using the wall adapter/charging the battery.

Either it was resolved or she didn’t care to have me investigate further.

I’ll update if I ever hear back from her though

[momaka]

Re: Spectra S1+ Breast pump - No suction

looked at the thing online and it has a pack of some type

According to the label, it has a 11.2V, 2000 mAh Li-Polymer battery:
https://www.badcaps.net/forum/attach...5&d=1599925301

Would indeed be interesting to know if the issue was resolved with the device running from wall power (adapter) vs. batteries. That should tell us if there is anything more that needs troubleshooting.

[caphair]

Re: Spectra S1+ Breast pump - No suction

worn motor, failing semiconductor.
shit batteries? looked at the thing online and it has a pack of some type

I asked if she tried with the wall adapter in case the battery wasn't fully charged. She said she hasn't but will try later today. Hoping just a battery thing.

According to her before liquid entry everything was working normal

[stj]

Re: Spectra S1+ Breast pump - No suction

worn motor, failing semiconductor.
shit batteries? looked at the thing online and it has a pack of some type

[caphair]

Re: Spectra S1+ Breast pump - No suction

Update:

Friend told me that the suction is very low when she tried it. I didn't have the diaphragm part that attaches to the hoses to fully test it.

Curious what could cause low suction at this point?

[stj]

Re: Spectra S1+ Breast pump - No suction

3 shells does not worry me,
there are stands in the street filled with free newspapers

[momaka]

Re: Spectra S1+ Breast pump - No suction

btw, i still think it's a huge waste of technology just to replace a hand!

What isn't today? They are putting "smart" MCUs in everything.
Also, haven't you seen Demolition Man, the movie? With the way things are headed with VR and smart technology... and now with covid-19 measures restricting/limiting how people meet and interact, I suspect it won't be long before we'll be using the three shells instead of toilet paper (remember the TP shortage?) and have sex through VR only. LOL!

[caphair]

Re: Spectra S1+ Breast pump - No suction

extra flexible wire - used in places where it will bend - like in robots.
i used to have similar but older wire where the copper was wrapped around a thick cotton cord.

btw, i still think it's a huge waste of technology just to replace a hand!

😂😂 agreed. Saw that these go for around $200. Pretty crazy to me

[stj]

Re: Spectra S1+ Breast pump - No suction

extra flexible wire - used in places where it will bend - like in robots.
i used to have similar but older wire where the copper was wrapped around a thick cotton cord.

btw, i still think it's a huge waste of technology just to replace a hand!

[caphair]

Re: Spectra S1+ Breast pump - No suction

Actually don’t think there was a thin wire inside the tubing. Just a flat looking copper wire that wrapped around it. The copper looked wider than normal strand

[momaka]

Re: Spectra S1+ Breast pump - No suction

Was there a thin wire inside the thin clear tube as well? If so, this might be some kind of shielded wire. Or it could also be that the clear tube inside was for reinforcement... though I'm leaning more towards shielded wire.

[caphair]

Re: Spectra S1+ Breast pump - No suction

Question about the jumper wire I used, it had a clear tube inside the insulation that the copper wire wraps around. Not sure what it came from, but curious what application something like this would be used for?

[sam_sam_sam]

Re: Spectra S1+ Breast pump - No suction

One more repair that took some doing

[momaka]

Re: Spectra S1+ Breast pump - No suction

Nice job finding the fault fellas! Glad to see another repair success story.

[redwire]

Re: Spectra S1+ Breast pump - No suction

so that's where the water went! Glad it's fixed, we don't want any starving babies

[caphair]

Re: Spectra S1+ Breast pump - No suction

So out of curiousity I wondered if the trace from Q9-C to R30 was on the backside of the board. I had to remove one of the push buttons and there it was, corroded.

Cleaned it up but the trace going to R30 was too far gone. Ended up soldering a jumper wire and it's back to life!

Thanks everyone for your help on this one. Wouldn't have thought to look there without going through how it's configured.

[caphair]

Re: Spectra S1+ Breast pump - No suction

I would tap a 1k resistor between GND and Q9-C which should drop Q7 gate voltage so it turns on.
R30 is to slow down the mosfet switching a little bit. It could be 200R.

Pump did not turn on but I suspect that's because there's no voltage on Q9-C which is why I was suspecting a break within the Pcb possibly.

I tried jumping Q9-C to R30 and heard a whining noise measuring voltage at pump connector saw oscillating 0-2v. Possibly because 1k was too high dropping the voltage?

Didn't want to just try jumping from Q9-C directly to R30 without first reporting back and seeing if that would be a good idea or if I could damage something

[redwire]

Re: Spectra S1+ Breast pump - No suction

I would tap a 1k resistor between GND and Q9-C which should drop Q7 gate voltage so it turns on.
R30 is to slow down the mosfet switching a little bit. It could be 200R.

[caphair]

Re: Spectra S1+ Breast pump - No suction

This is how the circuit looks to me. To turn on the pump motor, Q9-C should go to ground. You could try tap a 1k resistor to GND and see if the mosfet Q7 turns on.

Tap it to G of Q7?

What's the role of R30? Isn't it a 200 ohm? Labeled “201”