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OCCUPATION

  1. The quantum hard disk in my color classic died, so I bought a SCSI2SD and was reading some information about it on codesrc.com and there was written that SCSI2SD needs to run on 5V or else the board would break.
  2. Just uploaded my Apple Hard Disk 20SC recapping video, which also covers the 40SC, 80SC and 160SC since they all use the same SONY CR-43 PSU. Check the text description for a Mouser Cart and useful info. At the end, I do a boot test with a 2015 15" MBP.
  3. I finally kicked out my Apple TechStep video today. This has been long in coming. Be sure to check out the text description beneath my video on YouTube because it contains a link to a SIT file containing Disk Copy images of the two included floppies, one of which has a pretty neat HyperCard stack.
  4. Hey everyone! I ordered some floppy disks a few days back and they arrived today. All the Floppy Disks are 1.44MB High Density Disks, and they are all unformatted. However, I am having an issue with them. When I insert them into the Macintosh SE/30, I get the menu to initialise them, and then it goes through the "Initialisation" process. It says "Formatting Disk", then "Verifying Disk" and then it ejects the disk and it says "Initialisation Failed". Nothing else. I'm very new to this, so I don't really know what could be causing this. The disks are unlocked and are not
  5. Hey, all! I've been lurking around here for a while, enjoying all of the acquisition posts and knowledge from the different subgroups of this community. Reading about the stories posted here really got me excited about vintage hardware from one of my favorite tech companies. I wanted to make sure my first post would be on the "Apple" of my eye. I've been hunting for a PowerBook 550c for a few years, and lately, the time has been ripe. I recently acquired one on Yahoo! Auctions, which had the 100Mhz (or 99MHz?) PPC upgrade and 32MB module installed. I also found a PCMCIA Rev C modu
  6. Hello, My Macintosh SE/30 motherboard has been having issues since I received the computer in mid July. First of all, it used to turn on and do the simasimac, and death chimes but then I sent it out to MacCaps, and he tried to repair to no avail. It did the same thing when I got it back, so I tried washing the board in 5% White vinegar, but that didn't do anything. Any suggestions? Thanks! -Ryan
  7. Quite possibly the last vintage Mac I plan to collect. I've been looking for a boxed 2400c/240 for a little while; it has only become my Holy Grail after I acquired my 550c. So, for me, a significant conquest. Final Bid price: 30,500 yen (272.99 USD current) Shipping/Fees charge: 14,192 yen (127.03 USD current) Auction Linky I found this set on Yahoo! Auctions Japan late February. I also bought an extra set of restore software about the same time, and had them consolidate shipping, so you'll see the software actually shrinkwrapped with the computer box in the
  8. Yes, even the Macintosh 128k/512k KEYBOARD needs to be recapped: But does it really need to be 63V? Here's the keyboard schematic, with the 1uF cap showing in the upper right area nearest U2: And U2 is the 74LS123 shown here: Sure, I can find a Mouser $3.23 replacement, but why is the stock cap rated at 63V? Is it because people might be stupid and connect the keyboard to a phone jack, or is there some other reason? The reason I even wonder about this is because if lower voltage 1uF caps can
  9. Hello, I know that there is much discussion around the Mac Portables and their woes with powering up. So much information, in fact, that I have become lost in it all and have no idea where to start. So, if I may, some simple questions, and some directional guidance required. I have several of these beasties and they all do not seem to start up. Some don't boot at all, some boot then power off, some boot, show a mouse, and the drive tries to spin up then shuts off. One I had boot and went straight to sad Mac. It even ran off the replacement battery that I had in it (6v 5maAh le
  10. I recently bought a Macintosh Quadra 700 off of eBay (https://www.ebay.com/itm/Vintage-Apple-Macintosh-Quadra-700-M5920-Desktop-Computer-w-Harddrive-Mac-iMac/273781054522?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649) and it has some corrosion on the logic board from a leaky battery. When I was cleaning the corrosion off, several components fell off of the board. The parts that came off were R71, C61, R76, R77, Y6, and C65. D5, D6, and U91 are still on the board, but their pins don't look too great. U92 has nearly all of its pins broken off and it is hanging on by two or t
  11. Picked up an old, very dusty Macintosh 7100/66 from a guy in Cincinnati about a year or so ago. Worked for a while but one day I heard some crackling noises coming from within the PSU. Unplugged it very quickly and cracked open the PSU to find the devastating scene in the attached photo. I noticed one of the IC's was fried pretty badly, so I bought a replacement and installed it. However, upon plugging in the power supply a second time, the IC fried in the same exact way it had before. I've circled it red in one of the attached photos. I really have no idea how this PSU works, but what might b
  12. I just recapped my Macintosh IICX because it was having the common issue where the computer won't turn on and the power supply just clicks over and over again. Also, the sound wasn't working. After recapping the computer, the machine turns on just fine, but there is no chime and nothing is displayed on the screen. Do you think that I messed something up while recapping it or is there some other explanation to this problem? By the way, it worked fine before I did the recap on the rare occasion that it would actually power on without clicking repeatedly.
  13. Hello! I found a Radius Accelerator SE card in a Macintosh SE that I recently acquired like the one seen in the image attached. It contains a 68020 running at 16 megahertz and also has a 68881 FPU. The card seems to work fine, but I can't seem to find much information about it or what it is worth online. Can anyone give me a price for it so that when I sell it a get a good deal? Thanks!
  14. I recently picked up a PowerBook 180c that boots up and seems to work perfectly, with the exception of the floppy drive. It will read the floppies just fine, but the Finder always shows the disk locked icon, regardless of whether the disk is write-protected or not. I took the floppy drive out of the computer and the mechanism appears to be bent in such a way that the left side of the floppy is higher than the right side when it is seated in the drive, which seems to be preventing the write protect micro switch from triggering. I confirmed this by pressing on the left side of the disk when it w
  15. Well, no sooner than my 540's power supply went caput, I now discovered that my LC III won't startup either, and instead just clicks. Apparently this is a pretty common issue, and I guess it can sometimes be resolved temporarily by applying hot air to the affected area? Grumble frumble...
  16. I just got a Macintosh Portable in the mail today, and I was told it boots to a floppy disk screen. Turns out, that wasn't true. It doesn't even boot at all. The startup is very erratic, sometimes doing one thing and other times doing another. It will sometimes: - Boot to the mouse cursor, but then the screen flashes and glitches. - Boot to the zebra stripes, but become caught in an endless loop of booting. - Boot to the zebra stripes, but then display a Sad Mac with error code 00000012 0000CD36. A little while after that happens, the screen begins to flash and glitch while the flopp
  17. Hi everyone. I have a Macintosh classic. The battery is leaked and corroded a part of the mainboard and I'm trying to repaire it. There is three bad resistors on the under side (R88,89,90). I need to replace them, but I don't know the value of R88 and R89.I think they are both 104 ohm like R90. Can someone help to me please, what are the correct values?
  18. I made a new walkthrough video about replacing all the electrolytic capacitors on the MicroMac DiiMO 50MHz 68030 accelerator for the SE/30. I explain my choice of Niobium Oxide capacitors over tantalum, show the replacement, then boot and run benchmarks. The SE/30 shown has a recapped motherboard, recapped analog board, and SEASONIC PSU. The video is 4K but if you're a Mac user who loves Safari, you'll need Chrome to view it in 1440p or 4K. Also, it was sadly during the making of this video that my Epic Blunder occurred. My humble thanks to all of you who are so kindly trying to help me in
  19. I bought the color classic, previous owner said that it's working but when I connected everything and pressed the soft power button on ADB keyboard, nothing happened (the switch on back was turned on). I found on the internet that I should let it attached to the power for a day, it didn't help. I pulled out the logic board and turned the switch at the back on and I heard fan and hard drive spinning. Any ideas how to fix it?
  20. Today I powered on my Mac Plus and I heard really weak start up beep and there was this weird pattern on screen for a few seconds, then the missing disk screen showed up and it booted into a system as usual, except there was no sound. Second time I powered on the Mac there was no sound (not even quiet beep), also there wasn't any audio output from the audio jack on the back.
  21. After many years of delays on my part, I finally managed to get this specific Quadra 950. Many thanks to @Trash80toHP_Mini for taking a large detour on the way home to North Carolina through the countryside of Northern Virginia to hand it off to me. The Quadra fired right up without a single issue after just a little bit of light cleaning. Specifications: 16mb RAM, with all SIMM slots filled 500mb HDD No Nubus cards at the moment My plan for this machine is simple. Stuff it full of Nubus cards and RAM. This Q950 will be the successor to my Q800, which cur
  22. Recently imported a couple of CC ii, they both worked initially. The second one I acquired started right up, but had a "sparking" sound every time it was booted, and every time it shut down (CRT off). I noticed the fan was not working, and the back casing was not flush against the front casing. I took the back off and fitted it flush with the front, screwed it back down. Fan worked, and initially, there was that "sparking sound" but no video. Took it apart again, and this time I noticed that the grounding harness was loose, and detached from the left side bracket
  23. Here i have a Macintosh SE/30s that i found on the side of the road with a bunch of keyboards. Only one of them is working but i need to save up for a Floppy Emulator drive to really get this going!Post what you got below! http://www.agoraroad.com/macforum/vintage-computers/what-vintage-macs-do-you-own/
  24. Hello all, It’s been quite a while since I’ve posted here, and it’s good to be back! I had a quick question for you Portable people out there: I just recently recapped a clean-looking backlit model, and it seems to be working fine off of my bench supply running at 6.8v. The problem is, lowering the voltage to 6.7, 6.6, or 6.5v makes booting either hit-or-miss or impossible. Also, I bought a new 6V 5Ah SLA battery (not the cyclon pack) to power the system. Even after being charged up to its max of 6.6V, while connected to the original charger, the machine refuses to boot
  25. Hello! I recently purchased a broken Color Classic off of eBay and it arrived in the mail a few days ago. The capacitors on the logic board are leaky and I ran the board through the dishwasher to get all of the goo off. After doing this, I managed to get the computer to work and I plan to recap the logic board in the next few weeks. However, the sound suddenly stopped working when I booted it up today and at first I thought that the volume was just turned down. After turning it up, there was still no boot chime or any audio of any sort. Then I realized that the Color Classic was pr
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