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| Apple /// not booting | |
| Posted by: max1227 on 2015-12-21 09:26:09 Hello everyone, I recently got hold of an Apple ///, however it doesn't want to boot any Apple /// software. It will however boot nearly all my Apple ][ software using Apple ][ emulation. Basically it freezes on the Apple /// SOS welcome screen, see image below. The disk drive also stops at this point. Someone mentioned to me that it may be a RAM fault as the Apple /// doesn't have enough memory to completely load SOS. Is there a way of checking how much memory there is? Thanks in advance Max  | |
| Posted by: meall on 2016-04-26 09:43:11 Could be missing memory, maybe, look at the memory board and post a picture of it. I could also be bad CAPS that needs to be replaced on the mother board. The IIe board is a separate beast. Do you have two boards for the IIe emulation or only one? | |
| Posted by: david__schmidt on 2016-04-26 11:13:42 This is a blast from the past... but since you brought it up, it's likely the OP had a disk with a driver configured that was looking/waiting for a card that wasn't actually there. | |
| Posted by: ScutBoy on 2016-04-26 12:16:52 There's no separate board for Apple ][ emulation - it's all done in software. Since the ][ emulation works OK, and you get this far in the boot of a SOS disk, I agree with david_schmidt that there is likely an issue with the SOS disk; driver is a likely culprit. It _could_ be RAM or some other hardware issue. These can be tricky to troubleshoot. There are disk images for hardware tests out on the 'net. I'm currently re-capping a /// power supply and hoping that helps with the errors I'm getting on one of my ///s now. | |
Posted by: meall on 2016-04-26 14:12:27There's no separate board for Apple ][ emulation - it's all done in software.Really? what is that then: http://apple3.org/Documents/Manuals/Titan%20III%20Plus%20IIe%20Users%20Guide.pdf I have this setup, except I'm missing one of the board. | |
| Posted by: NJRoadfan on 2016-04-26 17:35:24 Apple II+ emulation is built into the Apple ///. The card you have expands it to support enhanced (with 65c02 swap) Apple //e software. | |
Posted by: meall on 2016-04-26 18:20:19Apple II+ emulation is built into the Apple ///. The card you have expands it to support enhanced (with 65c02 swap) Apple //e software.ah, I'll test it eventually then. I have only one of the two board of the Titan Upgrade and a friend that investigated problem on my III thing it could cause some issues, we're not 100% sure yet. I will order a video ROM to place into the III motherboard and test it without the IIe card installed. I always had the impression it was required to have the Titan expansion card to support Apple II (any model) emulation. It probably also mean that the IIe expansion board I was released late in the Apple III timeline to support the IIe when it was announced. Thank you for the information. I'll go to bed being a better Apple III person tonight, thanks to you. 🙂 | |
| Posted by: Macdrone on 2016-04-26 19:15:11 emulation requires the software floppy to work. | |
Posted by: meall on 2016-04-26 19:20:36emulation requires the software floppy to work.I imagine it is the same boot disk for Apple II+ or IIe with the Titan card installed, is that right? | |
Posted by: david__schmidt on 2016-04-27 12:53:16I imagine it is the same boot disk for Apple II+ or IIe with the Titan card installed, is that right?No, it's this one: http://apple3.org/Software/system/Apple3Apple%5D%5Bemulation.dsk | |
| Posted by: max1227 on 2016-05-22 07:45:13 Hi all, I've only just looked at this post as when I posted it back in December nobody replied. Anyway since then I have repaired the Apple /// and it was faulty RAM as diagnostics showed that nearly all the RAM on the board was dead. I bought a new set from VintageMicros and now it runs perfectly. All the disks were good to my amazement as they had been stored in a garage for many years. Thanks for all your replies. Max | |
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