EEVblog #525 - Bank Note Acceptor Teardown

What's inside an old style bank note/bill accptor/validator for vending machines and the like?
How does it detect genuine notes from dodgy ones?

Datasheets:
http://www.silonex.com/datasheets/specs/images/pdf/102136.pdf
http://pdf.datasheetcatalog.com/datasheets/134/157244_DS.pdf
http://www.ti.com/lit/gpn/tlv5629
http://www.mouser.com/ds/2/328/top242-250-9213.pdf
http://www.latticesemi.com/~/media/Documents/DataSheets/ispMACH4ADataSheetvL.ashx?document_id=1344
http://www.freescale.com/files/microcontrollers/doc/data_sheet/MC68HC11F1.pdf
http://pdf.datasheetcatalog.com/datasheet/AdvancedMicroDevices/mXwuvz.pdf

Forum: http://www.eevblog.com/forum/blog/eevblog-525-bank-note-acceptor-teardown/

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