Author Topic: EEVblog #242 - Hakko FX-888 Soldering Iron Hack  (Read 23249 times)

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Offline beatgr

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  • Posts: 4
Re: EEVblog #242 - Hakko FX-888 Soldering Iron Hack
« Reply #50 on: August 05, 2014, 04:05:38 am »
Tom Hammond, N0SS passed away (cancer) on August 4, 2011.
He first reverse engineered the PC board layout and produced a schematic diagram
using CorelDraw for his Hakko 936-9 soldering station in the late 1990s.

He revised this Hakko 936 schematic and board layout, from positive feedback by a
number of builder sources.  His last revision was 1.7 (March 26, 2011).
http://www.mmccs.com/mmarc/n0ss/hakko_936_schem-pcb_%26_mod_v1r7.pdf

I think he would be happy to know that his work has been useful to the Maker community.

g. beat
w9gb
« Last Edit: August 05, 2014, 04:20:43 am by beatgr »
 

Offline basman

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  • Country: ch
Re: EEVblog #242 - Hakko FX-888 Soldering Iron Hack
« Reply #51 on: January 08, 2017, 07:59:43 pm »
@rodcastler: I did not dare to open the case to make a photo due to the flying composition. Since the hack, it still works fine after 4 years.

You can identify the heating regulator's output easily with Dave's video or by following the connections of the original LED. Then have a look  at the signal using your oscilloscope.
If you see PWM signal, it's a microcontroller. Otherwize, if the LED receives a constant voltage level while it is on, you got the opamp version, like I did.
 


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