Today it's time to troubleshoot and fix a dead Apple IIc computer! --- Time Code Jumps 0:52 - Intro to the Apple IIc 4:18 - Powering the machine up for the first time 8:40 - Starting the troubleshooting 11:42 - Dealing with rusty case screws 11:57 - More troubleshooting with the oscilloscope 29:18 - Upgrading the Apple IIc ROM from ROM 255 to ROM 0 32:14 - Using a Macintosh mouse on a IIc 33:59 - Figuring out why the machine doesn't always boot --- Video Links IZ8DWF's channel: (he always gives me great advice on fixing these old machines) null Apple IIc ROM 0 upgrade: https://www.bigmessowires.com/2015/05/29/apple-iic-rom-upgrade/ 65C02 information: https://en.wikipedia.org/wiki/WDC_65C02 Apple IIc Schematics: https://mirrors.apple2.org.za/ftp.apple.asimov.net/documentation/hardware/schematics/ 4164 DRAM Datasheet: http://www.minuszerodegrees.net/memory/4164/datasheet_2164A.pdf DRAM list from: http://www.minuszerodegrees.net/memory/4164.htm Apple II Technical Manual: https://ia800607.us.archive.org/25/items/apple-ii-ref-manual/Image072217171023.duplex.merged.pdf Apple II ROM Images: (including the Apple IIc ROM I used) https://mirrors.apple2.org.za/ftp.apple.asimov.net/emulators/rom_images/ --- Tools Deoxit D5: https://amzn.to/2VvOKy1 http://store.caig.com/s.nl/it.A/id.1602/.f Jonard Tools EX-2 Chip Extractor: https://amzn.to/2VazxDS https://www.jonard.com/Products/EX-2-DIP-IC-Extractor-24-40-Pins Wiha Chip Lifter: https://amzn.to/3a9ftWw https://www.wihatools.com/precision-chip-lifter O-Ring Pick Set: (I use these to lift chips off boards) https://amzn.to/3a9x54J Elenco Electronics LP-560 Logic Probe: https://amzn.to/2VrT5lW Hakko FR301 Desoldering Iron: https://amzn.to/2ye6xC0 Rigol DS1054Z Four Channel Oscilloscope: https://www.rigolna.com/products/digital-oscilloscopes/1000z/ Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier: https://amzn.to/3adRbuy TL866II Plus Chip Tester and EPROM programmer: (The MiniPro) https://amzn.to/2wG4tlP https://www.aliexpress.com/item/33000308958.html TS100 Soldering Iron: https://amzn.to/2K36dJ5 https://www.ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853 EEVBlog 121GW Multimeter: https://www.eevblog.com/product/121gw/ DSLogic Basic Logic Analyzer: https://amzn.to/2RDSDQw https://www.ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672 Magnetic Screw Holder: https://amzn.to/3b8LOhG https://www.harborfreight.com/4-inch-magnetic-parts-tray-90566.html Universal ZIP sockets: (clones, used on my ZIF-64 test machine) https://www.ebay.com/itm/14-16-18-20-24-28-32-40-pin-IC-Test-Universal-ZIF-Socket-Fs/303206721971 RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI) http://www.retrotink.com/ Plato (Clone) Side Cutters: (order five) https://www.ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184 Heat Sinks: https://www.aliexpress.com/item/32537183709.html Little squeezy bottles: (available elsewhere too) https://amzn.to/3b8LOOI --- Links My GitHub repository: https://github.com/misterblack1?tab=repositories Commodore Computer Club (of Portland, Oregon and Vancouver, Washington) https://www.commodorecomputerclub.com/ Tivoo Pixel Art Display seen in my videos: https://www.amazon.com/Divoom-Tivoo-red-Tivoo-Bluetooth-Speaker/dp/B07CVGYPTV --- C64 Stuff JaffyDOS: http://blog.worldofjani.com/?p=3544 C64 Test Harness I use: https://www.youtube.com/watch?v=szSzA6T4Kdw C64 Homebrew cartridge PCB: (used for the DeadTest / Diag Cart I use) https://www.ebay.com/itm/Commodore-64-C64-C128-NEW-bare-HomeBrew-DEVelopment-cartridge-board-8-32k-2019/162430154398 EasyFlash 3 Multi-Cart: http://store.go4retro.com/easyflash-3/ --- Instructional videos My video on damage-free chip removal: https://www.youtube.com/watch?v=XQVjwPsVFd8 --- Music Francis Preve - Wild Pogo Unicorn Heads - Telepathic Drive Intro music by: Nathan Divino @itsnathandivino Outro Music: Abyss by | e s c p | https://escp-music.bandcamp.com/ Music promoted by https://www.free-stock-music.com/ Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ --- Image Credits Apple IIc pictures (used on Thumbnail and in video): By Bilby - Own work, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=11118452 Mac IIx Picture: CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=31135 Apple IIgs Picture: By Not specified. - http://www.allaboutapple.com/museo/appleii.htm., CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=1038527 Mac IIsi Picture: CC BY-SA 2.5, https://commons.wikimedia.org/w/index.php?curid=610707