Electronics > Repair
Weller WD1 Discussion and Repair
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Tatanka1961:

--- Quote from: diogoc on October 16, 2014, 10:18:20 am ---I get the firmware for the Weller WD2 (with PIC18f6622), so if anyone need it ask me.
With this and adding some components you can convert a WD1 into a WD2.

--- End quote ---
Hi,
I have both a WD1 and a WD1M
I would be very interested in converting 1 of them into a WD2(M). Preferably the M  ;)
They do seem to have different PIC chips though: the WD1 has a PIC18f6622 while the WD1M has a Pic18f4620
Is it the difference between the normal and the 'M' or just a newer revision?
Also the 'power' boards are quite different.
Could anyone please provide the binary file for the WD2(M)?


--- Quote from: Smith on April 01, 2017, 05:17:52 pm ---The Microchip ICD can be soldered to the USB breakout PCB without any problems.
Could you please tell us how to connect it?

--- End quote ---
z01z:

--- Quote from: Tatanka1961 on September 13, 2018, 02:02:14 pm ---Is it the difference between the normal and the 'M' or just a newer revision?

--- End quote ---
You really should have read this topic, the answers are there:

--- Quote from: Zapro on May 06, 2013, 05:35:53 pm ---I do believe, that you cannot modify a WD1/2 for the WMRP pencil. The WMRP pencil does use a K-type thermocouple, and not a NTC like in all the other stations.

I have a WD1M station, that I have taken apart to see how it works, similarly, i've taken an WD1 station apart to see, what the differences is.

There is no thermocouple-amplifier in the WD1/2 station, so it cannot read a thermocouple iron (e.g. WMRP)

So, it's not all up to software differences.

// Per.

--- End quote ---


--- Quote ---Could anyone please provide the binary file for the WD2(M)?

--- End quote ---
It's also posted a few posts back.
Tatanka1961:

--- Quote from: z01z on September 14, 2018, 05:41:44 am ---You really should have read this topic, the answers are there:

--- End quote ---
I actually DID read the entire topic.  ::) The difference you pointed out is between the WD and the M version.
I kinda figured out that it's not possible by just looking at the boards, but I don't want to convert a regular one into an M. I want to convert a 1 into a 2.

--- Quote ---It's also posted a few posts back.

--- End quote ---
As you pointed out yourself:

--- Quote ---Thanks for the effort, but the fw file you've posted is just a bunch of zeros. Maybe the PIC was protected?

--- End quote ---

So thanks for the comments, but not really helpful...   :-//
z01z:

--- Quote from: Tatanka1961 on September 14, 2018, 09:15:47 pm ---I kinda figured out that it's not possible by just looking at the boards, but I don't want to convert a regular one into an M. I want to convert a 1 into a 2.

--- End quote ---
Yet what you wrote revolves around the M version, which is kind of misleading.


--- Quote ---As you pointed out yourself:

--- Quote ---Thanks for the effort, but the fw file you've posted is just a bunch of zeros. Maybe the PIC was protected?

--- End quote ---

--- End quote ---
You're right, looks like I should have better memory.


--- Quote ---So thanks for the comments, but not really helpful...   :-//

--- End quote ---
OK, to be a bit more helpful then.

You could duplicate the driver for the second channel, that doesn't look that bad.
You'd still need the firmware, the handset connector and possibly a new transformer.
If your goal is to not to swap handsets that often, you could keep the existing transformer, but it would still have a lower power output than a real WD2.
I'm not sure if you can get an original connector. There's a possible workaround, though it requires some mechanical work (the notch in the Amphenol connector is at a different position) , check this for the part number.
As for the firmware, the M version can be updated, there's a Weller program for that. Maybe the firmware can be extracted from it.
Tatanka1961:

--- Quote from: z01z on September 17, 2018, 09:29:15 am ---Yet what you wrote revolves around the M version, which is kind of misleading.

--- End quote ---
Yes, I can see how this might be confusing.


--- Quote from: z01z on September 17, 2018, 09:29:15 am ---You could duplicate the driver for the second channel, that doesn't look that bad.
You'd still need the firmware, the handset connector and possibly a new transformer.
If your goal is to not to swap handsets that often, you could keep the existing transformer, but it would still have a lower power output than a real WD2.
I'm not sure if you can get an original connector. There's a possible workaround, though it requires some mechanical work (the notch in the Amphenol connector is at a different position) , check this for the part number.
As for the firmware, the M version can be updated, there's a Weller program for that. Maybe the firmware can be extracted from it.

--- End quote ---
duplicating the driver hardware would indeed not be that hard.
I don't mind the limited power output, I would only be using 1 iron at a time.
Getting the right firmware seems to be the biggest obstacle. I have the software for programming the WD1M, but it doesn't seem obvious to extract the firmware.
I guess all in all it will be more trouble than it's worth, so I'm putting it on hold for now. Maybe I'll look into it again later...
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