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About bushok

  • Birthday 09/01/1971

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    The Netherlands

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  1. Hi @Daniël Oosterhuis, I've sent you a DM!
  2. I've managed to unplug the plugs from the Logic-board. It is clearly to see that there is corrosion (the light brown 'heaps' around the capacitors), see my picture. Two questions: 1. I've also made a picture of the 'orange-brown golden fingers strip' that just slid out of the plug when I lift it a bit from its socket on the Logic-board. The strip has some 'bleeding' on or in it...would that be a problem? 2. I am no expert in replacing capacitors, this will be my first time. Is the soldering iron in the picture good enough to do the job? And should I start at the back of the Logic-board to loosen the old capacitors?
  3. Here a photo of all the cables connected to the Logic board. The left plug was the only one I managed to unplug. A bit strange though: the golden fingered flat strip just slid out of the plug… All the other plugs I just could not get loose. Unbelievable how stuck they are! What’s the clue?
  4. @archer174 Ok, that’s good news. I do have great difficulty in loosening the yellow wired cables from the Logic board. I don’t want to damage the cables and sockets. What should I do best?
  5. I've opened the CD SC Plus (a hell of a job!). I have not managed to get the plugs out of the Logic-board, they are mighty stuck and I've read about how vulnerable they are. When I look at the back of the Logic board, I see a few very slight corrosion marks. Does anyone of you @bibilit @archer174 recognise it as the capacitors being the problem? BTW, the laser lens looks nice and clean. @techknight How do I know the laser assembly is the problem?
  6. This is what I found in the Apple Service Source document of this device (http://tim.id.au/laptops/apple/misc/applecd_sc.sc_plus.pdf): (Troubleshooting/Symptom Charts - page 2) : "Red LED does not light when you insert the caddy 1 Exchange drive mechanism. 2 Exchange LED board. 3 Exchange power supply." The red light does indeed not light. It is very probably not the LED board and it is not the power supply. That leaves the drive mechanism (or capacitors) as faulty, as you guys said. I will open the thing up shortly and post photos here!
  7. Hi techknight and archer174, thank you for your replies and insights! I am not a technician I'm afraid (although I can mend a few things :). How do I see that the laser assembly is not ok anymore? Replacing this item will not be possible anymore, since the device is 25 year old I guess?
  8. Hi, my AppleCD SC Plus (M3021) is unable to mount cd's or cd-roms. It is hooked up to a Macintosh IIfx with OS 7.5.3, has the proper installed software and is (I think) neatly terminated in the right manner (it is the only externally installed SCSI-device and has the terminator in the upper SCSI-slot, and the SCSI-cable which is connected to the IIfx in the lower SCSI-slot). The CD-ROM drive (which is actually a Sony device) is shown with ID 3 among other SCSI-devices, the harddisk and the CPU (please see pic below). When I insert the cd-caddy loaded with a cd or cd-rom, it starts humming a bit, it pauses, it hummes a bit again and then it ejects the cd-caddy... What could be the problem? Is it a dirty laser or is it more serious? Thank you for helping me out!
  9. Hi! I have a Macintosh 128K (a European version, 220V) which is converted to a 512K. It looks like just te chipset has been upgraded, but is it done by Apple (see attached photo)? The chips are branded with NEC so that makes me suspicious that it is not. Is this an original Apple-factory upgrade from 128K to 512K or is it done by someone else? Do you have any clue what the “Apple 16” sticker (round, white with red apple logo) on the large chip might mean (see photo)? Best regards, Rob The Netherlands