I’m new so I introduce myself. I'm Cyril Moulin from France. I collect and restore Apple computers. I have 15 differents Apple computers like Apple II, Macintosh 128k, Next Cube and many others. I'm very happy that you approved my request for membership.
I'm currently building an Apple 1 and i have 2 problems (it seems that it’s how we learn and it's true!) :
-A problem with bad 2504s, which was resolved. Attached, you will find the approach that I have used to identify bad 2504s. I tried to do something simple in case someone else would have the same problem; it certainly needs to be improved.
-A problem with the computer section, which isn’t resolved. i populated the computer section and soldered motherboard jumpers as described by Mike Willegal. When powering up, I have the same display as the video section and @ flashing at the top left when the screen is cleared. But when I reset the system (temporary jumper pin 1 / pin 9 of keyboard connector), nothing happens and the backslash doesn’t appear.
Pin 1 of keyboard connector isn’t connected to anything on the motherboard. I don’t understand how it can act.
On this forum, I read that someone had the same problem but I haven’t found a solution.
Is anyone have a solution to this problem ?
Thank you very much for your feedback.