justacruzr2 Posted May 3 Share Posted May 3 Still trying to figure out which is the problem, drives or cards. I have tried both drives with both the first release CC9900 controller and the REV A controller. The results were the same with both. Neither would "seek". I did connect a different drive awhile back that I bought off eBay and it did work. But now that drive doesn't work either. Anyway, that's why I think the problem is with the drives. But it did make me wonder if there's something wrong with the cards that's killing the drives although I don't know how that could happen. Maybe it's just a coincidence. Let's assume for this discussion that the drives are OK and it's the controllers. When I turn on the PEB, the drives spin up and the LEDs come on until I turn the console on. That's normal. When I turn the console on, the CC9900 screen is displayed, and the drives shut down after a moment. That's normal. When I press 1 for Disk Manager, the drives come on and attempt to load it but beeps after it checks drive 1 and 2 and can't find it. That's normal. When I press 2 for TI Basic it goes right into TI Basic. That's normal. When I press 3 for TI Extended Basic the drives come on and XB attempts to find and run a program on disk1 named LOAD but can't find one so the drive shuts down and returns to the TI Extended Basic ">" prompt. That's normal. When I press space bar for color bar I get the color bar. And if I press the space bar again I get the regular TI menu with "Press 1 for TI Basic" and "Press 2 for TI Extended Basic". That's normal. So with all that appearing normal, could there still be something wrong with those cards? Both of these cards were rebuilt. I replaced everything including the IC's with the exception of the PALs since they're not available. Would the cards still appear to work even if the PALs were bad? Like maybe one of the pins equations is messed up? I know the CC9900 screen is running out of the ROMs. It was my assumption that if the cards work as described above, then the PALs are probably OK. But maybe not? Anyone know for sure? 1 Quote Link to comment Share on other sites More sharing options...
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