68kMLA Classic Interface
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| Click here to select a new forum. | | PowerBase 200 - No ADB | Posted by: CC_333 on 2019-03-29 19:28:45
Thought I'd post this issue in a separate thread, for clarity.
Everything else appears to be functioning as intended, except ADB.
It was working when I put it all together a few nights ago, then when I tried powering it on the following morning, there was no ADB!
Anyone know what could've happened?
Also, does anyone know: will the PS/2 ports work at boot, or do they need to have special software/drivers loaded first? I ask because this machine has both, and if ADB is out, maybe I can use PS/2 instead.
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| Posted by: CC_333 on 2019-04-03 10:05:46
OK, I solved this by replacing the logic board again... with the old one I thought was dead all these years!
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| Posted by: trag on 2019-04-03 14:49:47
Check the solder joints on Apple chip 341S0788 on the bad board. That's the CUDA chip which handles ADB. I've seen them go bad/come lose before.
| Posted by: CC_333 on 2019-04-07 14:49:33
OK, I'll take a look. There was a chip with some corrosion (can't remember which one), but as the board seemed to be working at first despite it, I figured it wasn't a problem.
I shall reexamine....
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