Sure.
BTW the manufacturer says "high frequency switching" .. but that doesn't mean RF, it means it uses a switch-mode power supply.. [slow clap]
Things of note; it has a six-wire connector from the handset to the box - all are connected internally. Three go to the logic board, three to the power board. The power board is doing the switching for the element (via well heatsinked fets) so I figure the three power board connectors are two for the element and one ground. The three to the logic board are obviously two for the thermocouple but there appears to be one extra sense line (which inside the handset PCB are marked as "Sense1" and "Sense2") - the sense2 goes to something that looks a bit like an electrolytic cap (no markings) but I think is maybe a mercury tilt switch to detect when the handset is left in the stand for a while. I didn't dig into it deeply as this was on a quick break from 'real work'.
Didn't fully pull out the power board from the case but it's got a main PCB with all the usual suspects for a switchmode PSU (DIP chip, transformer, caps etc) and attached under that board assembly is a second 12v transformer (probably the logic supply) and a metal heatsink with 3 power devices on it; one of which I assume is the iron heating element control. It seems perhaps a touch over-complicated but no harm in that.
Sorry that's not a very detailed exploration but it was a 5-minute job with the main intention of cutting the trace to the piezo which is pointless and annoying (it beeps repeatedly as you turn the iron and and it's coming up to temperature).
I found my Kill-a-watt but it has developed some a fault (displays 60w with nothing connected) however the readings appear consistent with the KAW just having developed a 60W offset - with the iron plugged in and freshly turned on it displays 150W (dropping back to 60W when iron is up to temp). With the iron tip wedged into a large aluminum heatsink the KAW displays a value that oscillates +/-40w of "100w" (assuming 100w=40W in reality). This power draw is quite responsive to me removing the tip from the heatsink and replacing it (within ~2sec response time goes back to "60w" when removed from heatsink)
Having just measured that I like this iron a bit more now. It's not junk.
Not much to say about the user interface - you adjust the set temperature, that's about it. The * button doesn't do anything that I care about (I think it's for locking the temp so factory workers can't adjust it without some password or suchlike)
Nothing much to complain about safety-wise; the jack socket is for an ESD strap. The aluminum case is also properly grounded. Everything securely mounted and heatshrinked, cables tied, etc.
Top board is switching PSU, middle is heatsink for 3x power devices, bottom is separate transformer (a little odd) presumably for logic.
The silver thing at the bottom of the case next to the transformer is a mains filter.
Front panel/logic - no power devices. That's an Atmega8 on there. Curious what they would populate on the other half of this PCB - hot air controller maybe? The through-hole pins just above the 7805 regulator are for the cursed piezo beeper. Immediately after taking this pic one of the traces going to it had an intimate encounter with my exact-o-knife.
Six pin connector to handpiece. Three go to logic board, three to power board.
The gold component on the pcb (center) looks like an electrolytic (but unmarked) but is quite likely a tilt sensor based on how it's wired (gets it's own line to the logic board) to detect if iron is left in stand - didn't have time to dig into this. Some of the wires have a bit too much insulation trimmed but nothing really hairy (and it's all low voltage/isolated)
Uses this tip arrangement- seems a reasonably good design, notice the thermocouple sticks right up inside the tip and the tip shaft has over an inch that gets snugly wrapped in the heating element.
Oh and the supplied stand is reasonably nice - metal, pretty blue color, decent weight to it, comes with that "coiled metal shaving" type tip cleaner as well as a sponge. I believe the handset detects when it's left immobile for a while and gets powered down (pretty sure there's no magnet/hall effect thing going on to detect that it's actually in the supplied stand, I think it's just a mercury tilt switch in the handset)
Image album:
http://imgur.com/a/Wetd0