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| JBC Soldering Station CD-2BC - Complete Schematic & Analysis |
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| cpposteve:
Hi Thanks for your help. this should help me or at least try to fix my DI-2D. im having an error with mine where it shows error 2 open circuit. have been looking for a schematic for a while now to try and get to the bottom of my issue and to resurrect it. Would you happen to know what part of the circuitry would be monitoring for an open circuit? im thinking maybe the TC input but yet to probe around. here is a link to my thread as to whats been happening. https://www.eevblog.com/forum/repair/please-help-me-diagnose-my-jbc-di-2d-fault/ many thanks Steve |
| Ribster:
I’ve had this same issue with the knock off of tips. Changing the tip resolved the issue |
| cpposteve:
unfortunatly not in this case. all my tips are genuine and tested on this machine :-- |
| Andrew_sokolov:
look at the voltage graph on the heater. I think a PID controller is used with a window of 5 pulses 50 Hz |
| c0d3z3r0:
@johnmx Did you try to dump the firmware? |
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