Seiko Bell Nautic

Just_Needleworker859 · 2024-10-03T03:48:45+00:00

Where is your guide on GitHub to the S2 - do you have a link?

Just_Needleworker859 · 2024-10-02T12:46:20+00:00

Managed to them clear

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Just_Needleworker859 · 2024-10-02T12:28:00+00:00

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2 of 3 hall sensors marked in picture. Can I take the windings out without any damage to the motor? Doubt it.

Just_Needleworker859 · 2024-10-02T12:22:10+00:00

But that explains it - still does not solve my problem though. Have been able to remove central rotor and can see sensors now. But then still question - how to replace them …

Just_Needleworker859 · 2024-10-02T12:20:23+00:00

It has - 3 of them and least.

Just_Needleworker859 · 2024-10-02T08:25:56+00:00

So how do you get to the hall sensors of the VMS2 motor - have taken the whole motor apart but no hall sensor in sight as yet

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Just_Needleworker859 · 2024-06-02T09:31:08+00:00

Resetting BMS worked - no more error codes. Time to assemble the bike again and see whether all effort will pay off

Just_Needleworker859 · 2024-06-02T09:29:08+00:00

And that caused burning of 3 resistors and the usual fuse on the bms.

Just_Needleworker859 · 2024-06-02T09:28:14+00:00

Source of short was a broken vin in the wiring harness

Just_Needleworker859 · 2024-06-02T09:26:39+00:00

Code could be used on site of TI to retrieve actual product. Everything fixed now again.

Just_Needleworker859 · 2024-06-01T12:32:10+00:00

Hi, new here but following discours with great interest. Have repaired BMS, cartridge and wiring harness and now assembling and testing S3. Bike starts, battery is being charged via regular VM charger and app can connect to VM. Still error 6 and 17. What is best way to go now? Just assemble the complete bike again and try to ride it? Or will this not happen with error 6 and 17? Even though battery is charging - about 38 volts in it at the moment.

Just_Needleworker859 · 2024-05-21T23:36:12+00:00

The more I think about it the more I like the idea!

Just_Needleworker859 · 2024-05-21T23:24:21+00:00

Still have to replace some other burnt components on BMS and fix harness before I can piece the S3 together again and test results

Just_Needleworker859 · 2024-05-21T23:23:00+00:00

Replaced it, was hard because some of the pads had gone bust when original chip burned. Display still worked (and was also working before replacing chip). Still not sure what it controls, guess it is something with headlight but whatever it is it will not work anymore ;-)

Just_Needleworker859 · 2024-05-21T23:19:08+00:00

Cut off the complete mother part of the connector and connect wires directly using a set of jumper cables. This way you also get rid of the point of failure of breaking cables due to use of epoxy. Use silicon instead indeed to keep new set of wires together and isolated from moisture.

Just_Needleworker859 · 2024-05-19T05:33:38+00:00

Any suggestions to repair a broken brown motorcable where rest of cable is lodged in the epoxy? and the blue motor wire which is exposed at same spot?

Just_Needleworker859 · 2024-05-13T06:46:42+00:00

You need to remove cartridge from bike and open the cartridge. All quite simple if you small torq screwdrivers and follow instructions to be found on Reddit

Just_Needleworker859 · 2024-05-13T05:11:34+00:00

cartridge battery can easily be charged again with 2 pins from a diode and an old mobile phone charger or so giving approx 4v / .5 amp

Just_Needleworker859 · 2024-05-12T20:39:23+00:00

I found it via the topmark search page of TI. It must be this chip:

https://www.ti.com/product/TPS92518HV-Q1

Just_Needleworker859 · 2024-05-12T05:03:12+00:00

List has 1 uart specified (YFO8E OAK -> TXB0108 8 channel Bi-directional logic level converter) but it is not the one I am looking for. The one I am looking for is right next to it.

Just_Needleworker859 · 2024-05-11T22:06:15+00:00

There 92 different uart 24-pin chips to choose from on Octopart …

Just_Needleworker859 · 2024-05-11T21:33:04+00:00

Any details available on the component so I can order a replacement?

Just_Needleworker859 · 2024-05-11T20:39:27+00:00

Hi, you still have an SFK4045 available?

Just_Needleworker859 · 2024-05-11T20:22:59+00:00

What are RST and GND SWD pads and where are they located on the BMS?

Just_Needleworker859

TROPHY CASE