Teardown Tuesday<br />Inside a 1973 vintage programmable scientific desktop calculator.<br />Plus an attempted repair.<br />Service Manual: http://www.wass.net/manuals/Compucorp%20326%20Service.pdf<br />The P2102 is a 1K x 1 bit SRAM, so looks like a 4 bit processor architecture.<br />Forum: http://www.eevblog.com/forum/blog/eevblog-663-compucorp-322g-calculator-teardown/<br />Teardown photos: http://www.eevblog.com/2014/09/16/eevblog-663-compucorp-322g-calculator-teardown/<br /><br />EEVblog Main Web Site: http://www.eevblog.com<br />The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2<br /><br />EEVblog Amazon Store (Dave gets a cut):<br />http://astore.amazon.com/eevblogstore-20<br />Donations:<br />http://www.eevblog.com/donations/<br />Projects:<br />http://www.eevblog.com/projects/<br />Electronics Info Wiki:<br />http://www.eevblog.com/wiki/
