David Cook's latest activity
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Board Nominations
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.Hope you feel better soon! I don't think the clock speed has anything to do with it. Thanks for cleaning the fingers. It will be... -
David Cook replied to the thread First 100 personalized Mac's.Paul Tavenier (left Apple end of 1984) has one. He's responding to forum posts if you have any questions...
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.I know exactly your concern about DeOxit. I think you should play it safe and just use IPA on the motherboard for the first attempt...
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.Attached is Apple's Color Classic schematic. See page 12 for the connector pinouts. We assume the LC 520 pinouts are the same, even if...
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.We are making progress. We have seen a number of things that are working. The fact that audio worked and the CRT worked briefly means...
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.One more thing when you get home from work. Confirm that you hear a sound from the floppy drive during test step 5 SWIM test.
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.I got my reproduction TechStep from @max1zzz during the following thread...
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.What have we learned? Your CPU is working. Your ROMs are good (checksum passed). Your bus is working (memory and ROM tests). Your CUDA...
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.I am testing my LC 520 board in my Color Classic using the reproduction TechStep. ADB mode works for me. 1. Mac power switch off. 2...
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.By the way, have you plugged headphones into the jack to see if the bong is playing through there?
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.Absolutely fascinating @JDW! This is good news. The TechStep results indicate most of the board is confirmed working. I wonder whether...
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David Cook replied to the thread Macintosh Slice - a Pre-release Color Classic.A different Color Classic came with its instruction manual. It includes a brief insert that calls out the power-up sequence. There must...
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