Re: 939 Help! Hakko's Lockout Instructions don't work

Ha, just noticed Hakko revised their instructions. Glad they listened to me. Maybe I should have done the solder bridge but I figured since I still had the diode (and the card), I might as well put it back in.

"Remove L6 from the sensor board inside the unit and place a solder bridge between the pads. This will cause the temperature controller to permanently read as through a key card has been inserted and allow the temperature to be changed."

Re: 939 Help! Hakko's Lockout Instructions don't work

I got an email from Hakko saying I have to bridge it in order to work without the card. But oddly I was talking to someone the other day who told me he has applied this procedure to dozens of 939's without any bridging. So there must be different revisions of the board.

Anyway, I soldered it back in. All is good now. (Dunno why I bothered doing this when I had the card).

Re: Hakko Soldering Iron Ebay Find!

The folks at Hakko have provided BUNK instructions with this L6 thing. I too removed it and now the temp can not be changed, even with the card inserted. Now I'm going to have to get a new diode and solder it back in. Thanks Hakko.