Hi all,
My Metcal has developed a fault, it worked fine for many years and then started to lose power, then wouldn't accept one tip, then indicated ground errors, then stopped heating an of the tips at all, with the display steadily showing 16W output but no heat. The basic handpiece has good continuity but i have no experience of the circuit or what to look for in the power supply. Any indications, and/or anyone with experience of a similar fault? There's some info on the web but it relates to older models without the SMPS and I don't know what other differences. All help appreciated!
My Metcal has developed a fault, it worked fine for many years and then started to lose power, then wouldn't accept one tip, then indicated ground errors, then stopped heating an of the tips at all, with the display steadily showing 16W output but no heat. The basic handpiece has good continuity but i have no experience of the circuit or what to look for in the power supply. Any indications, and/or anyone with experience of a similar fault? There's some info on the web but it relates to older models without the SMPS and I don't know what other differences. All help appreciated!
There's some technical detail/schematic info at the link below. Does it correspond to your solder station?
Good luck!
https://www.eevblog.com/forum/repair/metcal-mx-500-repair/
Good luck!
https://www.eevblog.com/forum/repair/metcal-mx-500-repair/
Hi BSST,
Thanks for this, I have seen the schematic. It's for the older model with LEDs, mine has an LCD display and no LEDS, also a SMPS, not sure of other changes. Before diving in I am living in hope for guidance from someone who has faced this. Tomorrow, if interested, I'll put up a pic of the unit misbehaving?
Thanks for this, I have seen the schematic. It's for the older model with LEDs, mine has an LCD display and no LEDS, also a SMPS, not sure of other changes. Before diving in I am living in hope for guidance from someone who has faced this. Tomorrow, if interested, I'll put up a pic of the unit misbehaving?
