My soldering station is a Weller WES51 for a long time. Today the station died, the LED didn't turn on and the tip doesn't heat.
I opened the station and checked the transformer power switch and voltages in the controller board. Everything appears to be ok.
When i tried to verify the clock in the micro controller (PIC) and touch the oscilloscope ground probe in the common of the controller the station works.
I tested the continuity with success in every common point that I've found. The station starts to work as soon as i connect ANY of the common points to ground(Which is weird).
If i connect the transformer core (that is grounded) to one of the secondary outputs the station works
There is continuity between the tip of the station and the ground terminal.
Any ideas why this is happening?
I couldn't find he weller wes51 schematic. Anybody know where i can find it?