A Casio Pokécom Compendium, fixing up a collection of Casio pocket computers

Video sponsor: PCBWay: $5 for 2 layer PCBs with 24hr turnaround at https://www.pcbway.com/ In this video we take a look at some Casio pocket computers in my collection that still needed some sort of TLC. The first order of business was to #GTDBO (Get The Darn Batteries Out), then we’ll concentrate on three different models which have three different issues. We’ll dissect an LCD, build a battery pack, and attempt a internal RAM upgrade. How did we make out? Join us and find out! Timeline: 00:00 – Welcome 02:23 – PB-100, LCD dissection 12:23 – FX-820P, new battery pack install 30:59 – FX-840P, internal 32K RAM upgrade attempt 49:16 – Wrap up. Thanks! Please consider clicking on the Subscribe button below and then click the bell icon. That way you will be notified when I post a new video. Thanks! Help support Hey Birt! https://www.heybirt.com - merch https://www.paypal.me/HeyBirt   / heybirt   https://www.subscribestar.com/hey-birt Hey Birt! On Social Media! Facebook: Soigeneris:   / soigeneris-295527583797729   Hey Birt!:   / heybirt   Twitter: Hey Birt!: https://twitter.com/HeyBirt?lang=en Links FX-840P Info: http://kyoro205.g.dgdg.jp/cgi/calcdb.... FX-880P Teardown: https://neil.computer/notes/casio-fx-... FX-880P 64K internal hack: https://manib.bplaced.net/blog/?page_... FX-850P Service Manual: https://archive.org/details/casio-fx-... RP-33 Redux: https://www.soigeneris.com/casio-rp-3... Amazon Associated Links Tools: Battery Spot Welder: https://amzn.to/3QMaG3T Hotplate: https://amzn.to/3rxOtLU Spudger set I use: https://amzn.to/3z19pM7 Heat mats: https://amzn.to/3boKDwl Amazon Associated Links Chemicals: CiaKot: https://amzn.to/3CvVKiY Overcaot Pen: https://amzn.to/3s439Bt Novus Plastic Polish: https://amzn.to/2VwtFaV Electronics / PCB cleaner: https://amzn.to/3ORx62D Citric Acid: https://amzn.to/3krkgdt Amazon Associated Links Parts / Supplies: Foam sheet, 1mm: https://amzn.to/37CfTtt Uxcell shrink wrap: https://amzn.to/3boKJEd NiMh tabbed Sun-C: https://amzn.to/3nHCbxL NiMh tabbed AA: https://amzn.to/3OMjBkW uxCell strain reliefs: https://amzn.to/3nJ5AaP 3M Double sided tape: https://amzn.to/3rYCxBX Credits Working of LCD GIF: http://www.circuitstoday.com/liquid-c... Chiptune Thing No. 3 "Victory" by Steven O’Brien   / stevenobrien   Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b... Music provided by Music for Creators    • Chiptune Thing No .3 Victory — Steven O’Brien