On Wed, 13 Jul 2005 16:49:20 +0100 Jack_son
wrote:


I am attempting repair of my Weller EC2001 Soldering Station. Does
anyone have a schematic? The base unit has digital readout, and
adjustable temperature.

Just voltage and resistance readings on the 5 pins of station, and on
the EC1201A [or EC1201P] iron would be helpful. The 28 V output seems
OK, as is the on-board regulator.

I think I've got a rough wiring diagram at work. I'll try to remember
to bring it home.

IIRC, there is a NTC sensor in the tip that is fragile. If that is
open, the tip will overheat. I tried to fix ours, but gave up and
bought a new one for ~$55. A few years before that I had replaced the
temp control circuit in the base. There was nothing there that I could
fix, I just had to buy the whole module for ~$80.

If I had this to do all over again I would not have picked up that $5
station.

Get a nice used Weller WTCPx, fix what's broken, and use it for a
lifetime. Much cheaper, much nicer, much more reliable. Just take the
base apart when you get it and SOLDER the connector pins to their
wires.

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Jim Adney
Madison, WI 53711 USA
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