Fenix TK61 teardown and mod thread

[RaceR86]

@ImA4Wheelr

Deleted original comment as too far off topic. When my HX-1175b’s arrive, I will figure out how to piggy back a 105c and pull the MCU from the HX-1175b. The same connection should be easy to do with your driver here too (Your stock driver controlling the HX-1175b). You would only need to connect battery positive, battery negative, and then the PWM out from your current MCU. Hopefully, the HX-1175b won’t pull power when no PWM is feed to it.

:party:

Fingers crossed you get it to work.

Since the TK61 have two buttons. Could use one as a mechanical power button and the other for electronic switch. :)

@FlashLion

Excellent pictures! I always enjoy watching pictures like these. And showing the internal parts of the expensive flashlight is highly appreciated. Thanks

:beer:

@18sixfifty

Thanks for the excellent write up on this light.

:beer:

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@RMM looking forward to hear more about your progress. Will you stop experimenting if you get it to run reliable for 10-15m at 5,8A?

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Regarding Dedoming. Could we keep that to one of the many threads that already started?

One of the relevant threads, and a video too.

A Perfect Dedome?

- YouTube

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I noticed on my lights that the MOSFETS around the resistors looked a bit melted. Id guess its because I held the solder iron too close when playing with the resistors. Or they have seen too much heat when I did some indoor runtime test. Its recommended to use thermal pads. I don't use that on my light simply because I want to see how the driver handles it without. J)