Rebuild broken Hakko FM-206, identification of Irons?

[DL8RI]

Hi!

Since some years I have a broken FM-206 lying around. Unfortunately the µC is damaged, so no chance of repair.

And before you ask, yes I could get a new PCB as replacement, but I do have a working rework-station and for a "backup" the PCB is too expensive.

But I have the unit and nearly all Irons for it and even some replacement-parts (but no working main-PCB ), I wanted to give that stuff some use again... What I wanted to do is to build a new "primitive" supply-unit, it's not very difficult, there are some in the net.
But one thing, I could not get my hands on, is how the main-unit identifies the irons plugged in. Anybody any idea?

Thanks for replies...

[amyk]

According to the instruction manual, the connectors have 8 pins. 4 are used for heater and sensor, and 1 for grounding, so that leaves 3 more to be used for some kind of ID scheme, or judging by the list of error messages, perhaps it can also detect the heater/sensor resistance.

[JacobPilsen]

Two pins are used for heater and sensor connected in series.

Martin, do You know czech ERS 50 ???
It is mainly compatible with T12 (and their clones) tips.
(Only temperature knob will have different scale.)

[Fried Chicken]

Hi!

Since some years I have a broken FM-206 lying around. Unfortunately the µC is damaged, so no chance of repair.

And before you ask, yes I could get a new PCB as replacement, but I do have a working rework-station and for a "backup" the PCB is too expensive.

But I have the unit and nearly all Irons for it and even some replacement-parts (but no working main-PCB ), I wanted to give that stuff some use again... What I wanted to do is to build a new "primitive" supply-unit, it's not very difficult, there are some in the net.
But one thing, I could not get my hands on, is how the main-unit identifies the irons plugged in. Anybody any idea?

Thanks for replies...

Any idea how it broke?

I just acquired an FM-206 that's currently on the way with UPS, and I want to make sure that doesn't happen to me!

[KG7AMV]

Hakko, May provide the firmware for that.. Sign up at www.kb.hakkousa.com
then Message them invoke right to repair and see what ya get. will most likely be a Renasas chip.

They are slowly providing it.