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mattsoft

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    Seattle
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    Retro computing and video games

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  1. Not the red/brown glue dots of glue from holding the cap, but beige/light brown crust under the caps around the legs of the caps. It looks like dried electrolytic from inside the cap that has slowly leaked out.
  2. More progress to report. System is working well. Booted an 8.6 CD on the internal CD-ROM, reformatted and installed onto the HDD. Everything is working fantastic. Now to clean the FDD... I wish the plastics on these weren't so brittle. They are fantastic machines to work on, except for the plastic bits inside. Sigh.
  3. After seeing some nasty caps on a beige G3 Power Mac, I decided to open up my beautiful iMac G4 and check the caps. A quick visual inspection looked good, but you know what can lurk beneath. I removed a few of the SMDs and sure enough... While there wasn't any liquid on the board, there were beige crusties under the caps. So it's off to DigiKey to order a full set of caps for replacement. Suppose the power supply probably should get a recap too -- but will have to tear this thing down further to get at it. Others recapping their G4 iMacs as well? Just curious. If so, what are ya'll doing about
  4. I don't have a Classic II, but projects like this are just awesome. Nice work moldy!
  5. The price is right! The Iici is a very fine machine! Hopefully the battery didn't puke its guts onto the logic board...keep us posted!
  6. UPDATE! I replaced the 4 caps on the voltage regulator board and the G3 now chimes and boots to a ?. Hurray! Now to fine a boot disc and HDD...
  7. This is the exact behavior on my SEs with OEM Apple drives for sure.
  8. Ugh, I hate problems like this. You have to check every component from the speaker back, unless someone knows of a common failure point on these. I see you used organic caps, were they shade grown and free trade too? I kid! I kid!
  9. Picked a beige G3/266 desktop some time ago, listed as working, however when I plug it in, it is dead. The fan on the PSU powers up, but the power LED does not, no power chime, the HDD or CD drive do not power on either. Bad PSU? So time to start troubleshooting... Measured the voltages coming off of the PSU while the G3 was powered on. All voltages are nominal. Check! Strange that the HDD won't spin up with good power (scratches head). Installed fresh battery. No change. Removed and reseated the CPU, ROM DIMM, memory, voltage regulator board,
  10. if it's an extension or control panel, can't you just locate the suspect file after booting without extensions and then drop it in the trash?
  11. congratulations! it's so much fun finding hidden surprises like an accelerator card in an SE.
  12. You might be trying to shove an IDE drive into your SCSI SE. For a SCSI Mac, I would recommend just going SCSI2SD and call it done. As for memory, the SE goes all the way up to 4MB of RAM using (4) 1MB 30-pin SIMMs. These are super cheap so you might as well "max it out." Also, if you have a battery in there, pull it or cut it out now before it's too late.
  13. Looks like my most from last night got nuked. I checked the voltages and they do not fluctuate under load. The only weird thing is that pin 9 on both headers is +12vdc and not +5vdc as described here: http://www.hardwarebook.info/Apple_Macintosh_Internal_Floppy_disk_drive Another twist, I was testing voltages and I might have "cross the streams" somewhere with the multimeter probe. The SE went dark. I flipped the power switch and both both floppy drives are dead. FloppyEmu still works on internal/external ports, but both 800k floppy drives are dead. Must have over-volte
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