https://stream.echo6.co/videos/watch/e19a9ff1-d3a7-46e2-aa34-80096c388189 Teardown Tuesday What's inside a 1991 vintage IBM PS/2 L40SX 80386SX laptop? Inside the LCD: http://animus.pro/public/lcd_2.jpg http://animus.pro/public/lcd_1.jpg Datasheets: IIT 3C87 Co-Processor: http://datasheets.chipdb.org/IIT/IIT3c87.pdf WD76C30 http://pdf.datasheetcatalog.com/datasheets2/29/2916422_1.pdf WD76C20: http://www.datasheet-pdf.com/datasheetdownload.php?id=370726 WD76C10: http://www.datasheetarchive.com/dlmain/Datasheets-8/DSA-153427.pdf LT1270: http://cds.linear.com/docs/en/datasheet/lt1270afc.pdf 8042 PS/2 Controller: http://wiki.osdev.org/%228042%22_PS/2_Controller Intel 8 Macrocell PLD: http://www.alldatasheet.com/datasheet-pdf/pdf/160485/INTEL/85C224-80.html Forum: http://www.eevblog.com/forum/blog/eevblog-639-ibm-l40sx-retro-laptop-teardown/ EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/ Wed, 10 Jun 2026 06:57:31 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/e19a9ff1-d3a7-46e2-aa34-80096c388189 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.