iSolder-40 opened - Page 1
Forum section: electronics / testgear

author: elliot
author_rank: Newbie
timestamp: October 05, 2014, 10:19:39 pm
content: Recently I was the lucky winner of a Jovy iSolder-40 soldering stationhttp://www.jovy-systems.com/en/products/solder-stations/isolder-40.html, and in the great tradition of this site I had to open it up...I was intrigued by the number of "unused" connectors including a unpopulated USB, on closer inspection the 10 pin connector was wired to the JTAG pins of the micro controller (Silicon Labs C8051F340) on the underside, the 14 pin connector is also wired to the micro controller but I have no idea what its function is.The white 7 pin connector on the left goes to the soldering iron which is a low mass resistive type, the temperature is monitored by precisely measuring the elements resistance (R14 is the current sense), two of the wires go to a capacitive sensor in the handle which detects when the iron is in use.Having now used the iron I am impressed by its ability to deliver heat even through a small tip.

author: mimmus78
author_rank: Unknown
timestamp: October 06, 2014, 11:25:13 am
content: Isn't it an high frequency soldering station like metcal? ;-)

author: ConKbot
author_rank: Super Contributor
timestamp: October 06, 2014, 12:11:12 pm
content: Nope, 24 VAC, but the website talks about a tip sensor and feedback, which would be absent on an HF iron.

author: elliot
author_rank: Newbie
timestamp: October 06, 2014, 12:44:30 pm
content: As you can see there are only 2 connections to the tip:The heating element itself is being used to measure the temperature, also the element is using DC power switched by a P channel MOSFET Q1 (top left below D3).

author: mimmus78
author_rank: Unknown
timestamp: October 06, 2014, 04:31:04 pm
content: DC is deftly no high frequency.I associated no temperature settings with high frequency stuff ... wondering why they not permit temperature setting now.

author: elliot
author_rank: Newbie
timestamp: October 06, 2014, 06:25:41 pm
content: I think the concept is to keep the tip temperature constant at the melting point of lead free solder, by having a very low heat capacity tip, a high power heating element (100W) and a PID controller.

author: mimmus78
author_rank: Unknown
timestamp: October 06, 2014, 07:53:47 pm
content: Umm this tip seems huge, it seams made mainly of metal ... are you sure it's low heat capacity?

author: elliot
author_rank: Newbie
timestamp: October 06, 2014, 08:53:46 pm
content: most of the metal body is screening and is quite thin metal, only the very end is solid metal, the whole assembly is very light.

author: zapta
author_rank: Super Contributor
timestamp: October 06, 2014, 09:03:45 pm
content: Quick tip replacement is a sufficient l significant improvement IMO over the standard hakkos and wellers. If the overall quality is good this can be an excellent soldering station for a reasonable price.

author: DJMota
author_rank: Contributor
timestamp: May 14, 2015, 08:44:07 am
content: Hello.Interesting Soldering Station.How many watts shows the label of the toroidal transformer?Greetings.

author: Carioca10
author_rank: Unknown
timestamp: June 10, 2017, 03:55:44 pm
content: Could you please re-upload the images?Is it really compatible with Hakko T12 tips?