CANON MD 5501 Canon Electronics K-61432-16

The main card K36-0189-04 integrates :

2 very small 5-pins connectors (2 x 5 wires for the magnetic head)

IC1 : Fujitsu MB8855A 1044M @ 4MHz (PQFP-48) datecode 8833

IC2 : Motorola MC2871A 8F31 datecode 8826 (PQFP-44) READ/WRITE Amplifier

MC2871A: See diagram http://www.oldschoolcomputing.com/documents/c128dcr_sams.pdf page 53

Motorola MC2871A cross reference SONY CX20185 Sanyo LA8200M r/w amplifier (equivalent to Sony CX20185 and Motorola MC28719)

IC3 : Toshiba 74HC74A (SO-14)

IC4, IC9: Toshiba 74HC02

IC5 : Toshiba 74HC14A

IC6 : ULN2003A (DIP-16)

IC7, IC8: Mitsubishi LS38-1

IC10 : Texas Instruments 74HC05

IC11 : Toshiba 74HC123

motor SST-20C12OL W200122 12V069A 8X07 Seiko Epson Corp.

Compaq Spare part *89014*

http://bitsavers.informatik.uni-stuttgart.de/pdf/shugart/_appNotes/Lesea_Floppy_May78.pdf Floppy-disc controller design must begin with the basics

http://bitsavers.informatik.uni-stuttgart.de/pdf/motorola/_appNotes/AN917_Reading_and_Writing_In_Floppy_Disk_Systems.pdf AN917 Motorola Application Note : reading and writing in floppy disk systems using Motorola integrated circuits

http://www.nypl.org/blog/2012/07/23/digital-archaeology-recovering-your-digital-history Digital Archaeology: Recovering your Digital History

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19 juin, 2022 .

matthieu.benoit@free.fr