David Cook's latest activity
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David Cook replied to the thread New tool to remove capacitor and rust corrosion - the dental scaler!.No. The movement is so tiny and so fast you feel no vibration at all. The sound is pretty irritating (chalk on a chalkboard). -
David Cook replied to the thread New tool to remove capacitor and rust corrosion - the dental scaler!.Another good use for the scaler is to remove the crusty buildup on the ends of leaky capacitor pads. This stuff does not come off easily...
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David Cook replied to the thread SE/30 Simasima Repair: 6 faults fixed and a working Mac.Yes. I socketed the original board. Based on your question, I swapped the original chip back in, and the delay reappears. So, the Sony...
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David Cook posted the thread SE/30 Simasima Repair: 6 faults fixed and a working Mac in Compact Macs.I recently received an SE/30 that was sold as working. Without trying the machine first, I broke it down, recapped it, and...
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David Cook replied to the thread Macintosh SE/30 Vertical & Horizontal Bars on Display "Simasima" Repair Guide.This is a fantastic guide! It helped me repair a board that I would otherwise have given up on. Are you sure page 46 has the correct...
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David Cook posted the thread New tool to remove capacitor and rust corrosion - the dental scaler! in Macintosh II.I purchased a IIfx that appeared to be in great shape. No battery leaks. Light capacitor leakage (no damaged traces). I recapped it and...
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David Cook replied to the thread Assembly Patching 68K software - SimpleText.Great question! Doing so would prevent MacsBug from recognizing the name of the function during debugging. It expects a name...
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Someone asked to have SimpleText open a smaller text window at startup. Initially, I assumed this would be a fairly easy fix by just...
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David Cook replied to the thread SE/30 -> Default state of NEC VRAM.If it were my board, I would remove both of those. Then, clean the area well to spot any broken traces. Then replace them with new...
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David Cook replied to the thread SE/30 -> Default state of NEC VRAM.Yes! Absolutely. What worries me about your photo is that I'm not seeing any on-screen images from ROM. No cursor, disk, or desktop...
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David Cook replied to the thread SE/30 -> Default state of NEC VRAM.Hello! Is that a 'before' picture? The capacitors don't look replaced. For example, C3, C4, C5, and C6 look original. If you haven't...
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David Cook replied to the thread Faster Baud and More Serial Ports (CSI Hurdler, SerialDMA, QuadraLink).That surprises me, because BinHex's text encoding inflates a file by 1/3. Ahh, MacBinary does not have compression, but BinHex has...
