It’s the final push to get the MILMAR Apple II+ clone fixed and working. Need to solve the no-start issue, solve the color issues and solve the random crashing issues.
Part 1: https://www.youtube.com/watch?v=YLML3JnprNo
Part 2: https://youtu.be/VWdBIEqTIVs
Part 3: https://youtu.be/3xD52i4xWak
Part 4: This part!
0:00 Intro
1:47 Solving the no-start issue
7:47 Solving the color issues
41:10 Fixing my previous mistake
48:35 Troubleshooting the color killer circuit
56:23 Troubleshooting the extra vertical sync line
1:01:02 Testing on a real CRT
1:05:10 The final random crash fix
— Links
MILMAR Apple II+ files: (including keyboard ROM and stabilizer STL)
https://github.com/misterblack1/milmar_appleII/tree/main
Dead test ROM:
https://github.com/misterblack1/appleII_deadtest
6502 datasheet:
https://www.princeton.edu/~mae412/HANDOUTS/Datasheets/6502.pdf
Apple II Circuit Description:
https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Books/W.%20Gayler%20-%20The%20Apple%20II%20Circuit%20Description.pdf
Font editors:
https://github.com/misterblack1/font_editors
Brazilian Apple II clones, unboxing:
Adrian’s Digital Basement ][ (Second Channel)
https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g
Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement
My GitHub repository:
https://github.com/misterblack1?tab=repositories
— Instructional videos
My video on chip removal without damage:
— Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino
About The Author
