Adrians Digital Basement | Fixing and improving Apple II 80 column cards @adriansdigitalbasement | Uploaded April 2023 | Updated October 2024, 7 hours ago.
#appleii #repair #retro

On today's video, we're going to take a deep dive into Apple II 80 column video cards. We have a couple to look at where we need to repair one and improve the way the video output looks with some ROM editing.

Part 1: youtu.be/UoY2OVK71Ew
Part 2: youtu.be/Tvig9Svrw4g
Part 3: This video!

--- Video Links

Open source Apple II 80 column video card:
github.com/btb/80ColumnCard

Videx Softswitch Video:
youtube.com/watch?v=AKtVg6KX40U

Apple II Datanetics keyboard repair video:
youtube.com/watch?v=wCuKToZqS4A

Sup'R'Terminal Wikipedia
en.wikipedia.org/wiki/Sup%27R%27Terminal

Sup'R'Terminal Documentation
https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Interface%20Cards/80%20Column%20Cards/M%26R%20SUP%27R%27TERMINAL/

Videx: (Company information)
en.wikipedia.org/wiki/Videx

VidEx Videoterm Documentation:
https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Interface%20Cards/80%20Column%20Cards/Videx%20Videoterm/

Franklin Ace Display Card manual:
vtda.org/docs/computing/Franklin/7005007B_ACEDissplayUserReference.pdf

Franklin Ace Display Card Schematics:
https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Computers/Franklin/Franklin%20Ace%20500/Schematics/Franklin%20-%20Display%20Card%20Schematic.pdf

Apple II Circuit Description (Book)
https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Books/W.%20Gayler%20-%20The%20Apple%20II%20Circuit%20Description.pdf

Difference between the 6545 and 6845 CRTC:
6502.org/users/andre/hwinfo/crtc/diffs.html

Github Repo with all the modified ROMs:
github.com/misterblack1/appleII-80col-ROMs

Adrian's Digital Basement Merch store:
my-store-c82bd2-2.creator-spring.com

Adrian's Digital Basement ][ (Second Channel)
youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g

Support the channel on Patreon:
patreon.com/adriansdigitalbasement

-- Tools

Deoxit D5:
amzn.to/2VvOKy1
store.caig.com/s.nl/it.A/id.1602/.f

O-Ring Pick Set: (I use these to lift chips off boards)
amzn.to/3a9x54J

Elenco Electronics LP-560 Logic Probe:
amzn.to/2VrT5lW

Hakko FR301 Desoldering Iron:
amzn.to/2ye6xC0

Rigol DS1054Z Four Channel Oscilloscope:
rigolna.com/products/digital-oscilloscopes/1000z

Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
amzn.to/3adRbuy

TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
amzn.to/2wG4tlP
aliexpress.com/item/33000308958.html

TS100 Soldering Iron:
amzn.to/2K36dJ5
ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853

EEVBlog 121GW Multimeter:
eevblog.com/product/121gw

DSLogic Basic Logic Analyzer:
amzn.to/2RDSDQw
ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672

Magnetic Screw Holder:
amzn.to/3b8LOhG
harborfreight.com/4-inch-magnetic-parts-tray-90566.html

Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
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)
retrotink.com

Plato (Clone) Side Cutters: (order five)
ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184

Heat Sinks:
aliexpress.com/item/32537183709.html

Little squeezy bottles: (available elsewhere too)
amzn.to/3b8LOOI

--- Links

My GitHub repository:
github.com/misterblack1?tab=repositories

Commodore Computer Club / Vancouver, WA – Portland, OR – PDX Commodore Users Group
commodorecomputerclub.com

--- Instructional videos

My video on damage-free chip removal:
youtube.com/watch?v=XQVjwPsVFd8

--- Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino