phipli's latest activity
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.Oh, also, some people sell their old apple ROMs on ebay, any SIMM from a IIx, SE/30, IIsi, IIfx and several other of that era of...
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.Yeah, ROMs do go bad sometimes. Getting a SIMM is the best answer if you don't mind spending the money. They're a good thing to get...
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Pphipli replied to the thread Refreshing a Quadra 605 + Bonus Quadra 650.Check the settings on both rather than just one. Termination issues are like echos in a cave, they bounce around and the issues don't...
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.By the way, did you say you had a logic probe? It might be worth wiring up some of the address bus on a ROM and seeing if you get the...
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.Would it help to fit a 5R or 10R resistor to the end of one of the probes? Perhaps just lift it out of the range so you only beeped for...
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.Macs can have such a low resistance that some meters will beep continuity between ground and 5v on a working board. It... can make...
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.I get 16R at the hard disk power connector between Gnd and 5v. That is in line with what I've measured on other Macs in the past...
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.I'll measure one of mine, just a mo.
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.I think we have wires crossed, that's what I was saying. I was using it as evidence that code isn't executing because it never goes low...
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.I'm pretty sure that the overlay starts high : ...
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.Just double checked, you should have three jumpers fitted on the board total. W1, which enabled the onboard ROM, and W3 with two...
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Pphipli replied to the thread Mac IIcx no chime after board re-cap and startup circuit repair.Good work, it is that hard bit. Tedious and repetitive. Yeah, that sounds like no code is executing. If I have things the right way...
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Pphipli replied to the thread FS: Radius Rocket Clone "Prototypes".Lets take a pause and breath in how awesome it is that someone cloned a Rocket before we ask them to do an even more difficult job of...
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Pphipli replied to the thread Refreshing a Quadra 605 + Bonus Quadra 650.That sounds like a bad cable or poor termination. First thing to do is check your termination settings - things sometimes still "work"...
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Pphipli replied to the thread Massive (filthy) find in South Carolina.Yeah it was me that first raised it as a solution on 68kmla (I never saw it anywhere before, but I mean, apple engineers knew and...
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