Thanks Peter. Do you know what type of part the C1701C is? Best Regards, Chuck ----- Original Message ----- From: "Peter L. Peres" To: Sent: Sunday, May 23, 2004 2:37 PM Subject: [EE:] Hakko 936 Parts / Schematic > imho change the C344C (to LM324 or proper equiv.) and then verify that the > cord to the handle, and all related contacts are ok. This includes in the > handle (there are two resistors in the tip - ~20 ohms heater and ~200 ohms > sensor afair - there must be NO leakage between them). The opamp dies when > the sensor resistor accidentally touches the heater circuit or tip ground > (loose wires in handle or connector etc). Happened to me several times. > Just replacing the 324 fixed the problem every time so far. > > hope this helps, > > Peter > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body