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Really? I don't think that was me, re: the PM. I meant - I know how to actually take readings - how do you get inside the chassis above the board at an angle that would allow you to take measurements? Does the chassis open like that? I've clipped out the chassis box - like from the case...

So... keeping in mind I ask this because I'm not really an electrician/electrical engineer/electric personality, is there a way to bench test the board - as in to take measurements to try and trace the problem - that can occur outside the chassis [since I can't do much in there]? I mean I know...

Egan Ford, who curates the Apple ][ Disk Server, suggested his utility c2t.

Ironic, Techknight, I noticed that when I used the monitor incidentally again today.  But that'll have to wait until I get a IIgs, I mostly use a IIe mono monitor now. I realized that Apple ][ Disk Server (and I just emailed that guy) probably uses ADTPro and just records output - which doesn't...

I would like to test a Grappler Plus card for which I don't have a ready cable (to printer).  Is that possible?  When I try to enable the slot it's in the machine doesn't produce a response on the screen I can use to debug. I also want to test the Z80 coprocessor card.  I found three "ALS CPM...

I did actually want to make it a stock CC.  But this CC came with a MacMicro (or something) 68030 FPU/32mhz accelerator so I basically already had the CCII speed.  The RAM thing is an issue, but I have so many macs at this point that I don't really need any one of them to be specific.  It's not...

No worries.  I appreciate the response. Unsurprisingly, the 560 board boots from the startup disk in the CC chassis; the CC board does not detect the startup disk in the 560 chassis. Are the ROM chips swappable?  And has anyone ever tried to trace the SCSI circuit to/through the interface...

Thanks.  That's what I figured.  The more interesting question is can I retrofit the 560's (550) chassis for the CC's motherboard?  That would go a long way toward showing it's a problem with the mobo. [i figure it's bound to be something like this problem anyway: But the CC uses a different...

I'm going to go pick up a Performa 560.  I assume that the mobo is swapabble in the same way a 550 is?

I just reseated the caps again and still no change.  However, either after that or during my recap, I didn't properly connect one side of C9 to the pad, though it was probably conductive.  Uniserver, did you mean trace rot in the silver joints on the interface?  I just doused them with Scrubbing...

No dice after recapping and thorough washing and drying.  [sCSI Probe still shows a dot that indicates no data.]

Yeah I'm changing them all, essentially, at this point (until I run out of time today).  I don't see the trace rot at C9; though - is it possible you're talking about my garbage repair job?  (I'm trying to be self-deprecating, not defensive).

Thank you Paralel. The only other thing (ironically - to that comment) I'll point out is that there's stripped laminant near the pin 17 marker of the 9248XN chip (bottom right of the picture).  Anyone know what that trace is?

Hmmm... then maybe I should wash it again. I thought about that before recapping. I'll finish the recap but I'm also curious to pinpoint the issue. Is this high resolution enough (the Galaxy Note 3's cam isn't great*)? And it's not the cleanest/prettiest solder job I've done, but I don't think...

Replacing the bottom three caps (C9/10/11) had no effect. (I'm also still not clear on the necessity of recapping.  For a site so dedicated to that mainstay, I'm surprised nobody is able to justify the logic.)

Yeah I don't have those so that's not really an option.  Can I measure the voltage/amperage somewhere easily?  And my thought on recapping has been that there isn't really a destructive end - that if caps die, I'll replace them, but if not then the worst case is they die and I have to replace...

That was one of my thoughts too, Bunsen.  I think I noted above that it and another drive both boot the CC from an enclosure, but neither boots from inside.  The other drive (not the Apple-branded IBM) clicks as if the head is hitting something inside.  And that also made me think either some...

Oh man, you had me really excited with WackyTV but it doesn't look like that's it.  Youtube actually has all the clips included, and that's not on it.

I didn't recap it at all.  I've had trouble finding documentation on CC cap issues, and I haven't run across anything that would indicate a specific connection between SCSI issues and caps until this: http://www.vintage-computer.com/vcforum/showthread.php?50463-Color-Classic-Internal-SCSI.  I...

Here's another thought.  It actually might be a problem with one of the three capacitors by the contacts (between the board and inside the case).  The external SCSI works; and the 85C80 microprocessor is directly below the external SCSI port so that's maybe not surprising.  The rest of that MP's...