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I was planning to sell the other SE/30 logic board. But it seems I didn't manage to fix it really. It booted up but no chime. However, next boot failed. I thought the disk went bad so I tried with another disk. Same result, 1st boot ok but after that it fails.  Turns out the logic board has...

I tried to empty the iMac properly before selling it, but it seems it doesn't want to boot from the USB drive. So I had to buy some CD-Rs and write Mac OS 9.2.2 on such. But my old MacBook Pro didn't manage to burn a disk properly. So, time to try the external burner. I copied the 9.2.2 ISO to...

Alright, today was the delivery day. Pismo - Powerbook 400MHz/1MB Cache/64MB/6GB HD/8MB Video/DVD Bad news first. The Pismo didn't come with a charger and my 12" Powerbook G4 charger doesn't fit there. Also missing the cover for back side connectors. Looks somewhat rough outside but keyboard...

Just finished the second one. Despite having that goo all around there wasn't that much corrosion. This IIci starts up fine with chime, internal video is good etc. But when I shut it down it tells me after ejecting the disk that "it is safe to shut it down now" like my SE/30 does. I didn't...

Made a deal, 80e including home delivery with wine but without vodka :-) . I should get them later this week but I need to some major cleanup here before I can add them to my collection.

The first IIci repaired. Pretty easy case, some leaks but no corrosion really. SIMM sockets are damaged and missing parts of the retainers so I got a sad mac on a first start. Memory massage and then the computer works fine. Two more to go. Next one had much more goo leaking and required some...

Some update of the haggling process. At the moment we have iMac g3, beige g3, Pismo g3, ext scsi cd-r, ext FW hard drive, one bottle of German white wine and a small bottle of high quality moonshine. All for 90 euros...  This is the best part of the hobby  [:P]

I once posted "WTB: old macs" and forgot the whole thing. Now a gentleman contacted me and said he had some old macs nearby.  Based on the photos there are three units: - Beige G3 desktop model with ZIP drive - Green G3 iMac, looks like a tray loading model - Pismo G3 Powerbook  -...

I think my original post was a tiny bit misleading. The issue is not really about the zero track alignment. It seems the sensor is not working at all, the arm moves clearly to block the slot on the sensor but it doesn't register it. Instead the stepper keeps rotating, the drive head sledge moves...

I received a disk drive but it seems its zero track sensor is faulty. Right after startup it moves to the zero track but doesn't stop there. I cleaned the optical sensor with first air and then IPA but no help. If I block the cut on the bottom of the sensor with a piece of a paper it stops the...

While ago bought three IIcx computers and managed to fix two of them. The third one starts up but no activity after that. Now it was time to level up and do the same with IIci triplets. But instead of buying we made a little deal. I'll get two computers free if I return one recapped. Not sure...

Running OS X 10.4 fine except it tends to shut itself down when there is CPU intensive tasks. Fans are blowing but I assume the machine is full of dirt as it has never been opened. Should the thermal paste be reapplied on this model? The battery is totally dead. Is it possible to rebuild the...

Does anyone have idea what the gain and phase potentiometers do on the PCB?

Cleaned up everything really carefully, still not working fine. Speedtest results after pressing recal: Track 0: 393-395 Track 40: 473-476 Track: 79: 595-600 Based on the track tests it looks like it isn't able to write properly on the disk. I assume the first track alignment has nothing to...

This thread contains a lot info: 

Continuing here as this thread seems to be more appropriate. This 400kB drive is driving me crazy... Beginning of the story: The mechanical parts are moving fine, nothing visibly broken or bent and the drive head moves smoothly (guide and worm gear cleaned). There is some play sideways...

I ran Sonytest's Error Rate Test for a while and results are:   Pass Count: 6 Adr Mark Errs: 1 Data Mark Errs: 299 With the track test the tracks 1-25 caused a lot of errors but after 30 to 79 it was quite error free. So, something not ok. Any ideas what to do next?

Sounds much safer than the mini blowtorch option I used. But it was rather fast method  :-D

I really don't like C-clamps, so I removed the eject and insert mechanism together. With some WD-40 and finger burning heat I managed to get parts moving again. I cleaned up worm gear and the head as well. Formatting doesn't work. Sometimes it is able to reach verifying part but then it fails...

Yep, I tried IPA already. I am trying to figure out the best way to take it apart now...