Hello all, would anyone have, or know of a California Instruments 848TCM or the schematics for one? We're trying to find out what IC with PCB legend U17 and R21 are on, what we think, is its power supply board inside (there are three PCBs in the unit), the one in question is "A1 ASSY 4848-705-1".
It looks like this: https://accusrc.com/uploads/images/img3782.jpg Please excuse that this is slightly off-topic but thought I'd try a long shot with regards the audience here. It is an old (cira 1983) controller for a California Instruments variable AC power supply we were hoping to resurrect in order to do an experiment with. In the unit, unfortunately, U17, an 8 pin IC, and R21 have gone pop in a catastrophic way - enough to have 'melted' the ident off the IC. Thanks for reading. ________________________________ Matthew Wilson Technical Director [GBE]<https://gbelectronics.uk> https://gbelectronics.uk T: +44 (0)1903 244500 F: +44 (0)1903 700715 Ascot House // Mulberry Close // Woods Way Goring-by-Sea // West Sussex // BN12 4QY // UK Electronics Design // Manufacturing // Component Distribution [ISO 9001 | ISO 14001] <https://gbelectronics.uk/quality/standards> Want to send us a file? https://www.mailbigfile.com/gbelectronics ________________________________ GB Electronics (UK) Limited is a company registered in England and Wales Company Registration No: 06210991 VAT Registration No: GB 925 1744 25 Registered Office: Ascot House, Mulberry Close, Woods Way Goring by Sea, West Sussex, BN12 4QY Disclaimer: This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please delete it from your system, do not use or disclose the information in any way and notify the sender immediately. The contents of this message may contain personal views which are not the views of the company, unless specifically stated. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
