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Any opinions on the Aixun T420D?

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GnomeZA:

--- Quote from: Neshco on November 30, 2023, 04:47:17 pm ---Looking for some active tip soldering station and this one is on the top of the list, what about the handles, have anyone tried genuine JBC handles and tips on it, does it need some hacking or can be plugged without any modification?

--- End quote ---

Came to ask the same thing, I suspect it'll need a new connector.  I bought a genuine JBC T245-PA and used that on my Aixun T3A.  I've now ordered a T420 and I'd like to do the same for the 115 (using JBC NT115).

So I'm wondering if anyone knows what kind of connector is being used and what the pin out is?

EDIT: Oh you posted this a long time ago, ever get anywhere with that?

erniarrow:
Hi all. I recently purchased the Aixun T420 single-channel solder station with a soldering iron holder. When using the C115 soldering handle and tip, I hear a clicking sound from the solder station when turning it on. This sound does not occur when I use the C210 handle and tip. Has any Aixun T420 user experienced the same issue? I suspect that this sound originates from the relay switching inside the solder station when adjusting the voltage for the new type of soldering tip, but I would appreciate confirmation from others regarding this matter. Thank you in advance.





GnomeZA:

--- Quote from: erniarrow on December 29, 2023, 08:17:03 am ---Hi all. I recently purchased the Aixun T420 single-channel solder station with a soldering iron holder. When using the C115 soldering handle and tip, I hear a clicking sound from the solder station when turning it on. This sound does not occur when I use the C210 handle and tip. Has any Aixun T420 user experienced the same issue? I suspect that this sound originates from the relay switching inside the solder station when adjusting the voltage for the new type of soldering tip, but I would appreciate confirmation from others regarding this matter. Thank you in advance.

--- End quote ---

T245 and T210 use a 28v winding and the T115 uses a 8.5v winding.  So the click is it selecting to the lower voltage winding.  You can see the windings here:

GnomeZA:
I ordered a T420 from an Aliexpress seller and realised the T420 IS NOT the same as the T420D


source

And this isn't just wording or mistranslation; there is a different firmware



I should call out that based on that press release from Aixun you need to choose carefully, because some people are throwing out info like the T420 is a "gentle" path to T420D.  That does not appear to be the case.

They only appear to release partial firmwares on their Github, so I doubt you can just cross-flash; hardware not withstanding, would be interested to hear if anyone has attempted this cross flash.  Since the full firmware is not available and the microprocessor is read protected I'm not going to risk throwing $200 in the water.

Hardware wise my T420 has T420D hardware, identical to SDGs.  I got some black painted philips screws instead of stainless allen key nuts holding things in place (yes, I pay attention to that level of detail).  Otherwise I couldn't spot a single difference based on what SDG showed.

erniarrow:
Is it just about software limitations? Hmm... Interesting.

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