68kMLA Classic Interface
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| Apple /// restoration | |||||||||||||||||||||
Posted by: Byrd on 2023-02-03 00:38:47Bent? That's one I haven't heard before. Something heavy or someone’s posterior bent the keyboard inwards, took a while to bend back with wood levers and surprisingly was OK (short of a new keyboard controller!) | |||||||||||||||||||||
| Posted by: pball52998 on 2023-02-05 11:58:34 Guess who has a new apple iii board! Guess who also still has the same damn issue of no video! lol, at least I have a bunch more ROMs now!  Man these things hate me. The timing logic on this one is also broken The problem with this one is straight timing logic to start.  Back to the beginning with a different board to see if it was something that simple 14.3mhz clock signial works fine going to B13 on all pins it's expected. It's not LEAVING b13 though. SSD/5SD/55D whatever it is is deadline flat. It's dead on D11, D10, A11 so it's not just B13 having the issue. The problem I'm running into, what in gods name is SSD/5SD/55D Any ideas? Edit: God bless the reference manual S5D is the following: Location Pin
But all of those seem to be input, not production. hmm. If anyone has anything I'm always open | |||||||||||||||||||||
| Posted by: pball52998 on 2023-05-02 18:16:33 It's been February since I posted? Well life got crazy. Project got put on hold, lots of projects at work, promos, new job roles, etc. On top of weekly concerts, backpacking and everything in between I haven't gotten to work on this! I did find out the last information though!  Resistors! Will be just honestly replacing all 4 of them on the new board. It's a lot cleaner, seems to have less issues at first glance. Will start mix matching chips between the two of them. I do need to buy more sockets though, as some of them are coming out of the board / broken. Sorry for leaving everyone hanging here. Hope to continue this sometime soon. Here's to hoping I can get board #2 working 🙂 | |||||||||||||||||||||
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