Video sponsor: PCBWay: $5 for 2 layer PCBs with 24hr turnaround at https://www.pcbway.com/ After spending the last 3 weeks finishing up old projects that have been accumulating on my workbench, I am down to two projects left on the bench. In this video we will tackle one of them, a NEC PC-8201A that was started about two years ago. I don’t remember where I left off, why I did not finish it at the time or even if I still have all the parts. Join us and see if the PC-8201A can be saved. As a bonus we will look inside a very odd option ROM that came in this PC-8201A. It is not what it seems on the outside… Timeline: 00:00 – Welcome 02:02 – Evaluation, sorting parts, power on test 11:26 – Refurbish LCD/Keyboard, replacing ‘death foam’ 22:51 – Replacing memory battery, short circuit prevention 31:08 – Power supply recap 33:02 – Reassembly 39:21 – Testing, configuring batter cassettes 41:53 – Bonus, the faux EPROM 44:46 – 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 https://www.patreon.com/heybirt https://www.subscribestar.com/hey-birt Hey Birt! On Social Media! Facebook: Soigeneris: https://www.facebook.com/Soigeneris-295527583797729/ Hey Birt!: https://www.facebook.com/HeyBirt/ Twitter: Hey Birt!: https://twitter.com/HeyBirt?lang=en Links PC-8201A ‘Death Foam’ video: https://youtu.be/yWuko4ysxVI PC-8201A information site: https://www.web8201.net/ PC-8201A NiCad configuration: https://www.web8201.net/NiCadMod.asp Amazon Associated Links Tools: Fiberglass pen: https://amzn.to/3pWRzIk Fiberglass pen refills: https://amzn.to/3RgqGdQ OWDEN Hollow punch set: https://amzn.to/3PXzTXW 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: 303 Aerospace Protectant: https://amzn.to/3BxRa5Y 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 Noctua 80mm NF-A8 FLX fan: https://amzn.to/3ASVhsJ Credits Chiptune Thing No. 3 "Victory" by Steven O’Brien https://soundcloud.com/stevenobrien Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b... Music provided by Music for Creators https://youtu.be/ujIMRIJ1JG8 ... https://www.youtube.com/watch?v=KFTDzwjdYMI

Video sponsor: PCBWay: $5 for 2 layer PCBs with 24hr turnaround at https://www.pcbway.com/ In this video we take a look at a Tandy PC-4 (same as Casio PB-100) which has a flickering display. Taking it apart and cleaning things up was easy. Figuring out how to properly assemble it was another matter. While it took three attempts and dumping half the keys out on the table, we got there in the end and do explain in detail how to assemble one of these easily avoiding the mistakes first made. Timeline: SP 00:00 – Welcome 01:44 – Look at problem and disassembly 05:12 – Clean up, Assembly attempt #1 07:25 – Polish plastic bezel 09:30 – Assembly attempt #2 11:33 – Dumping the keys, Assembly attempt #3 18:13 – Replacing foam pad 21:24 – Final test, wrap up 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 https://www.patreon.com/heybirt https://www.subscribestar.com/hey-birt Hey Birt! On Social Media! Facebook: Soigeneris: https://www.facebook.com/Soigeneris-295527583797729/ Hey Birt!: https://www.facebook.com/HeyBirt/ Twitter: Hey Birt!: https://twitter.com/HeyBirt?lang=en Links Tandy PC-4 Service Manual: https://archive.org/details/manualzilla-id-6027413 1mm self-adhesive foam: https://amzn.to/3Evqhh0 Amazon Associated Links: 1mm self-adhesive foam: https://amzn.to/3Evqhh0 Spudger set I use: https://amzn.to/3z19pM7 CiaKot: https://amzn.to/3CvVKiY Overcaot Pen: https://amzn.to/3s439Bt Novus Plastic Polish: https://amzn.to/2VwtFaV 3M Double sided tape: https://amzn.to/3rYCxBX Heat mats: https://amzn.to/3boKDwl Uxcell shrink wrap: https://amzn.to/3boKJEd NiMh tabbed cells: https://amzn.to/3nHCbxL uxCell strain reliefs: https://amzn.to/3nJ5AaP Credits Chiptune Thing No. 3 "Victory" by Steven O’Brien https://soundcloud.com/stevenobrien Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b... Music provided by Music for Creators https://youtu.be/ujIMRIJ1JG8 ... https://www.youtube.com/watch?v=paPgbJTcOeA

Video sponsor: PCBWay: $5 for 2 layer PCBs with 24hr turnaround at https://www.pcbway.com/ In this video we attempt to repair a ‘nonrepairable’ Epson HX-20 keyboard. A very sensitive FLIR IR laboratory camera was borrowed to aide in the diagnoses and a special fixture was machined and 3D printed for the attempt as well. Will all of this result in repairing Epson’s ‘nonrepairable’ keyboard? Join us and find out. Timeline: 00:00 – Welcome 01:39 – Whacky keyboard symptoms 05:32 – Breaking out the fancy FLIR camera 09:24 – How FLIR camera used in laboratory 10:07 – Keyboard surgery 19:24 – Modification needed to put it back together 27:37 – Testing, more surgery, testing, repeat 36:28 – Kapton tape donuts and pen springs, a la MacGyver 41:50 – Wrap up and 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 https://www.patreon.com/heybirt https://www.subscribestar.com/hey-birt Hey Birt! On Social Media! Facebook: Soigeneris: https://www.facebook.com/Soigeneris-295527583797729/ Hey Birt!: https://www.facebook.com/HeyBirt/ Twitter: Hey Birt!: https://twitter.com/HeyBirt?lang=en Links My other HX-20 videos: https://www.youtube.com/c/HeyBirt/search?query=Epson%20HX-20 Amazon Associated Links Tools: 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 Chiptune Thing No. 3 "Victory" by Steven O’Brien https://soundcloud.com/stevenobrien Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b... Music provided by Music for Creators https://youtu.be/ujIMRIJ1JG8 ... https://www.youtube.com/watch?v=HJHGI7Wt4F8

Description Join in the adventure of being a new Amiga owner with a New-In-Box A500. It is just like we are back in 1987 and just came home with a new Amiga and are learning how to use it. In this video, we look at the non-functioning Return key and find out the source of the ‘oily’ substance on top of the key. The floppy drive is pulled out and a quick service is done. That 30+-year-old grease was due to be replaced. After reading the documentation that came with Tetris and some tips form views, I was finally able to (badly) play a game of Tetris. 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.subscribestar.com/hey-birt https://www.patreon.com/heybirt Hey Birt! On Social Media! Facebook - Soigeneris: https://www.facebook.com/Soigeneris-295527583797729/ Hey Birt!: https://www.facebook.com/HeyBirt/ Twitter- Hey Birt!: https://twitter.com/HeyBirt?lang=en Links Amiga 500 NIB unboxing video #1: https://youtu.be/CcF0LNtvOHc Amiga 500 NIB power up video #2: https://youtu.be/o9qjfX0w1TQ Cambridge Z88 keyboard membranes: https://www.sellmyretro.com/offer/details/new-replacement-cambridge-z88-keyboard-membrane-%28z88-membrane%29-1823 Credits Retro.mp3 by Wayne Jones, YouTube Audio Library Chiptune Thing No. 3 "Victory" by Steven O’Brien https://soundcloud.com/stevenobrien Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b... Music provided by Music for Creators https://youtu.be/ujIMRIJ1JG8 Texas Techno, by AudionautixYouTube Audio Library ... https://www.youtube.com/watch?v=fq6XhDpeb2A