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Found 18 results

  1. I just got an very nice LCIII on eBay with an Apple IIe card, Apple CD 300, and an apple color monitor. Still exploring how awesome this machine is... its all in great shape and everything is running well. I have read that the LCIII supports different video resolutions but can't find a Control Panel or other way to change it. I can change the number of colors (B/W, 256, thousands) but don't see an explicit way to change the resolution (I have read it supports resolutions of 512 x 384, 640 x 480, 640 x 870, and 832 x 624 - depending on VRAM of course and maybe on monitor?) Thanks.
  2. I recently acquired an LC III that originally came from my old high school's music dept. I remember using them in high school initially, only to have them replaced with PCs at some point. The LCs sat around for years before they were given to a friend of mine who does work for the town. He kept one for himself, sent one to The 8-bit Guy (!), and he gave the third to me! It runs perfectly hooked up to my external VGA monitor. The internal battery was dead of course, but hadn't leaked at all. Floppy drive reads perfectly after cleaning the heads. And it came with a 16MB RAM module. It is the 25MHz 69030 processor. I've since upgraded it to a 32MB RAM module and also installed a 256KB VRAM module (there are 512KB modules out there but my understanding is the LC III only takes the 256, although I have seem a reference to it taking the 512, so who knows). A 68882 FPU coprocessor is on its way (these are super cheap???). I wasn't paying attention initially but it looks like it's the 25MHz version. A new PRAM battery is also on its way. With regards to the VRAM, it does give the machine access to thousands of colors, but I don't seem to have access to the promised increase in resolution... The main issue with the LC is that it has stopped booting from the hard drive. It has an 80 MB Quantum drive, and it appears to suffer from the issue whereby the read head arm gets stuck on an old rubber bumper, but if you give the head a nudge at boot it will whisk into action and behave normally, until shutdown that is. What I'd really like is a good accelerator card, though I know those are going to be hard to come by, particularly any that uses the 32-bit PDS slot. Ethernet cards seem to be easy to come by though, so I can at least do that. There's of course also the Apple IIe card but people are charging crazy money for those, even though there really should be a billion of them, seeing as how they (and the LCs in general) were produced for the education market. Oh well... The caps will probably need to be replaced. A couple of them in particular look bulged/deformed.
  3. Hi, I've recently repair a LC III macintosh. It had a 500 Mb Quantum Apple disk, but ir doesn't work. I change the disk with an IBM 1 GB. I tried to install several times system 7.5, and I did, but when I shut down the computer, the HD didn't boot up. I have to start up from a diskette and then with LIDO or something similar mount it and then, always that I restart (don't shutdown) the mac start up fine. I try to initialize the HD with LIDO and with tha patched version of the Apple HD util, but no success Please do you have any idea about what to do?? Thanks in advance
  4. travistouchdown

    LC III found curbside

    I was walking with the fam a few weeks ago and found a dirty LC III on the side of the road. The bad: -DIRTY!! -Broken auto-inject floppy (despite a break down, lube, etc, repair attempt) The Good: -160MB Hard Drive -Came with VGA adapter screwed into the back monitor port -32MB Ram Simm inserted -Dirt was just that, machine wasn't banged or scuffed up so it cleaned up really nicely. Minimal yellowing -Came with Kid Pix installed I am having a blast and a trip down nostalgia row with this machine, because my first mac was a Perfoma 450. So far I have: -Replaced the floppy drive with a working unit from ebay -Added 256k VRAM simm to max out system VRAM -Replaced PRAM battery Future Plans Include: -Order external SCSI CD Rom drive -Upgrade OS to 7.5.5 -Load up with great games and programs of the era from the Macintosh Garden -Overclock to 33mHz -Try to find a "period correct" monitor (using a small Samsung TV with a PC input right now, which works great but looks a little off) Any tips or ideas for this great little pizza box mac?
  5. I've been maintaining what was formerly a fully operational LC III for the past couple of months following the completion of board and PSU recapping (c.o. Uniserver) but a few weeks ago I noticed that the internal speaker would occasionally make a popping noise. The issue seemed to get progressively worse until just a couple days ago when it ceased to make any sound at all, not even the startup chimes. This morning I tried to troubleshoot the issue and found that the audio jack in the back of the unit has the same popping issue as well. I tried unplugging and reconnecting the speaker contacts, checking the jack to make sure there wasn't any debris/stuck contacts there, and used a slightly damp tissue to wipe down the areas near J2 and J15 on the motherboard (corresponding to the connection points for the audio jack and the internal speaker, respectively) in case there was some issue of cleanliness that I couldn't see. When I turned the unit back on, the sound seemed to act normally again, but this is where things went south. I left the computer and came back 5 minutes later to find that the mouse wasn't responding. I tried plugging it in directly to the back of the unit (instead of daisy chaining it through the keyboard) and tried inputting keyboard commands but to no avail. I restarted the machine and it appeared to start up fine, but the popping speaker was back, and shortly after going to desktop a message came up saying 'Sorry, a system error occurred. "Finder" error type 10'. I clicked the restart prompt and the startup noise went off, but then the chimes of death played and nothing happened. I unplugged everything and started the machine and it seemed to respond correctly, and upon replugging things in gradually, no other issues came up. Once everything was back to what it was before, the LC III started up to desktop correctly, but again the speaker pops intermittently. I left it on for a long while and nothing else untoward happened. I'm not sure what is going on given that the behavior is unpredictable, but the only commonality appears to be with the audio popping. As stated before, the board and everything has been recapped as of late October, and presumably it was cleaned in the process. I don't see any capacitor discharge or anything like that although there are some small stains presumably from previous such leakage on parts of the board away from (I think) the parts responsible for sound. Is there a specific protocol I should be following to troubleshoot the issue further?
  6. I have a LC III and an LC II, and as you know, they have an empty FPU socket on them. It would be nice to put in an FPU in them, right? You know it. But I also have a couple of LC Ethernet Cards with an empty FPU Socket on them as well. Actually, of the 3 cards I got, 2 have a FPU in them (68882 @ 16MHz) and one has an empty socket. Its obvious that they were made for the LC. This got me thinking - the 68K can support multiple FPUs. So can I put in an FPU in the logic board and another FPU in the ethernet card? Though the CPU can support it, will the software support it? Will there be any improvement? What do you think?
  7. I was working on my LC III (again) and tinkering with the two external hard drives I acquired some time ago. It turned out that one of them had a functional hard drive but the enclosure's power supply was not working, while the other had a perfectly OK enclosure but the hard drive itself has seized up. Between the two of them, I have put together a completely working external hard drive setup, which is great. The problem is that the working hard drive had a small set of pins which was ripped off accidentally during the physical transfer. The pins are attached to a cable in the old hard drive enclosure, and it turns out this is part of what is used to set the SCSI ID. Without the pins in place, the external HD is apparently treated as being SCSI ID 0, since when I have both the internal HD and the external connected at the same time, the system preferentially recognizes the external. This is kind of a pain since I want to transfer what's on my internal hard drive to the external one. I can probably reattach the pins to the actual hard drive so it reports its SCSI ID correctly, but my soldering game isn't really up to par and I'm worried about damaging the unit. Is there any other way to have the external or internal SCSI ID change so that both drives are visible by the system? Alternatively, I have an Iomega 100MB zip drive which I know I can attach to the DB-25 port in back and store the files from the internal HD to a zip disk. However, since the external HD normally attaches to that port, it doesn't look like both can be attached at the same time at first glance. Would it be possible to chain these together like this: Mac (internal HD disconnected) -> DB-25 to CN-50 cable -> external HD -> CN-50 to DB-25 cable -> zip drive Would the zip drive itself also need to be terminated, or would I have to put a pass-through terminator on the second cable? I should note that the external HD has two CN-50 ports whereas the zip drive has two DB-25 ports, so I would need to get an extra cable in either case.
  8. As a result of the feedback I got from the topic at https://68kmla.org/forums/index.php?/topic/26059-lc-iii-external-hard-drive/I was able to obtain an external hard drive which connects to my LC III via the DB-25 port. The setup looks something like this: Mac <-> DB-25 to CN50 cable <-> CN50 pass-through terminator <-> External HD I originally received a Spin external HD, but the unit would not power on. When I connected it using the setup listed above, the Mac would play the chimes of death and not start up. I recently came into a ClubMac external HD, which I confirmed is able to be powered on without any issues. However, when I connect it to my Mac it starts up correctly but does not recognize that anything is attached to that port. I tried running Apple HD SC Setup to initialize the external HD, but it only recognizes the internal SCSI drive. Is there some other software that needs to be used in conjunction with the external HD in order to access it? Alternatively, could there be something wrong with the above SCSI chain or with the external HD itself that could explain it?
  9. I was trying out different SCSI configurations for an external HD when I noticed my LC III started giving the chimes of death immediately after startup. I can't see anything on the monitor, possibly because it is using an adapter, so I can't tell what specific error is occurring. I tried disconnecting all of the external cables except for power, removed the hard drive and extra RAM stick (tried disconnecting the floppy drive too but it's in fairly tight) but the issue still persists. Any idea as to what's causing the issue or why it came on so suddenly? I'm fairly sure the board was recapped during its lifetime before I received it, but is there a way to know for sure if something like that is the culprit?
  10. edd_jedi

    LC III Box Contents?

    Hi all, new here but I am a long time vintage computer tinkerer. Have owned many classic Macs and Amiga's over the years. I have been lucking enough to just pick up a NOS unused Macintosh LC III. It's immaculate like new, no yellowing, and no battery damage (don't worry the first thing I did was remove it.) I will of course post photos when I get round to taking some! But I was wondering if anybody can answer these questions. Firstly, I am trying to figure out what belongs in the original box. mine has: 1 x main unit 1 x keyboard 1 x mouse 1 x microphone 1 x keyboard cable 2 x power cables 1 x VGA cable 1 x sealed bag of manuals/disks 1 x set of Mac stickers All of the above is unused and factory tied and bagged apart from one of the two power cables. Would it have come with 2 originally? Both are UK, so it's not like a modern PC that often comes with both UK and US plugs. And also why would it have a VGA cable in the box? I think the VGA cable and one power cable do not belong with the set, but hopefully somebody can confirm. And is anything missing from the above list? Secondly, was there supposed to be a screw holding the 'pizza box' lid on at the back of the main unit? I can see a hole for a screw but it doesn't look like there's ever been one in there, and I have looked at photos of other units on Google and can't see a screw in any photos. Any help appreciated!
  11. I acquired an LC III without a hard drive a couple of months ago and have gone through the laborious process of finding a working compatible hard disk drive. I started with an 80 MB Quantum ProDrive ELS 50-pin SCSI drive which worked the first day, but then failed on all subsequent boot attempts. I then ordered a 1GB drive but was accidentally shipped a 68-pin SCSI drive from HP instead. Even after trying a 50 to 68 pin adapter and a patched version of Apple HD SC Setup 7.3.2 (from the System 7.5 Disk Tools floppy), the machine never did recognize the drive as being attached to the SCSI port. Today I got back from a computer recycling place and tried out three 50-pin SCSI drives that I was able to get there on the cheap. The first was a 160 MB Apple brand drive, which seemed to be recognized fine but reported "Unable to write to the disk" when trying to initialize/test the drive. The second was an 80 MB IBM drive, which I've heard have a reputation for reliability, but that was not recognized at all by the disk setup program despite the patching or the fact that the drive is Apple-approved to begin with. Finally I was able to get a 40 MB Conner drive initialized and have put a provisional System folder on it (pretty much just what was on the Disk Tools floppy) so that I can verify it still boots over the coming days and doesn't seize up like the Quantum ProDrive did. My question is, is there anything I can do to troubleshoot the remaining drives to see if they can be salvaged for use by the LC III? All of these drives are for internal use only, and so I have no way of leveraging the working drive to get, e.g., different drive formatting programs onto the machine to test them (unless there's a cable/adapter that would allow this via the serial port or something). Could there be an issue with the machine itself in failing to recognize the IBM or HP drives? Otherwise, if all else fails and I just settle for the working 40 MB drive, are there recommendations for what version of classic Mac OS to install given the disk space constraint? My original idea was to put System 7.5.3 on there, but that would take up all of the drive space even with a minimal install.
  12. I have a fully functional LC III but am thinking about getting some sort of external data storage in case the current HDD fails. From what I can tell, the case only has a DB-25 connector in the back which could be used toward this end. My question is, what would be the simplest set of components I would need to connect some form of data storage to the LC III in this way? I am guessing I would need a DB-25 to a 50-pin SCSI cable or something like that and then attach that to an internal HDD which I could then put in some sort of enclosure. Is there a better way of doing it than this? Alternatively, is there anything else I can attach to that port which might serve a similar purpose?
  13. I recently collected and assembled all the parts needed for an LC III, which I put together yesterday. This included the hard drive, a Quantum ProDrive ELS with 80 MB of space and a SCSI connector. Everything seemed to be working properly, and I was able to install System 7.5.3 on the machine last night without issue. However, when I booted up this morning, I got a flashing floppy disk icon with a question mark in it. I put in the Disk Tools floppy and neither Disk First Aid or the Apple HD SC Setup utilities recognize that the hard disk is present at all in the machine. I double-checked the connections and everything, it all seems to be okay on that front, and while the machine is running I can sense the actual physical hard drive spinning without any issues that I can tell (no unusual sounds, clicking, etc.). I know that old SCSI drives like this tend to seize up and die, so I was wondering if this is the case for this particular hard drive as well. If so, then does anyone have recommendations for a reliable SCSI drive that would be compatible with this machine?
  14. Was looking over the dead LC III 25MHz, and saw an empty capacitor spot (C17). So I thought, "did I forget to put a cap there during recap?" I checked it with the other LC III (a 33MHz) that works. C17 spot is also missing on the other board. Then I looked over the two boards, and I found a lot of dead end areas. This one on the top of the board in particular as a 10µf capacitor was recapped in this area. Which I have a question... I can not see where the trace goes because "U32" is covering it. But from that I can make out, it loops back to C18. And the middle trace goes to an empty pad area. Does that loop trace goes under the VRAM Chip at location U32? I have a feeling that it does not. And there are other funny areas I found looking for dead traces. Underside of board R71 is one such area that goes to nowhere as there is no R71. Again on the underside R88 is another, a trace comes out of it to a junction to the other side BUT there is another trace that breaks at that point because R88's trace is in the way. I found several funny spots like that, confirming them with the working LC III. So... why so many funny areas? This makes looking for broken traces when one runs into a dead end spot. An in the case of C18, it is necessary or can it be removed? That depends if the trace goes under U32, which I can not see.
  15. Damn, I swear. I was hoping to post up the tale of two recaps of two LC IIIs, but success fails me. One LC III (a LC III @ 25MHz) was dead to begin with. The other LC III (a LC III @ 33MHz) was semi OK, it kept producing random sounds which is attributed to leaky caps. It is the second LC III I crippled. During the recapping, three (1 - 47µf and 2 - 10µf ) caps literally came off the board with no force applied to them and the traces ripped off from the board. It was going so well until I hit these three caps. Then I went to get some wire and found nothing useful so I had to go shopping. I so hate Radio Shack, I got spool of wire and the clerk looked at it as if he never seen wire! Then he said, "This for that Raspberry Pie Robot thing? We don't sell much of those." I just handed him $10 and remained silent. Then I continued on buying other things that I needed - dinner being one of them. Got home, tried to solder tiny bits of wire to the caps and soldered them in place. Put the LC III back together and it bonged! It Bonged with no extra sound! Silence! But then, I got the flashing "?" Disk Icon. I checked my connections and nothing. I'm sure its the cap ( C20 ) by the SCSI connector at the bottom of the board, but now I'm too tired and full of remorse - I crippled my LC III. OK Experts, you think I'm right or wrong? The three caps that came off with traces are: C20, C2 and C18. The area was pretty much surface rotted, but I cleaned it up with a heavy Q-tip and a lot of acetone until it was smooth. All the other caps came of cleanly and soldered in with no problems. As for the first LC, I may have to send it out. This machine was dead since I got it in the late 1990s and it's written all over on the case "NG/NW" for No Good, Not Working. Who ever I sent it too, my SE/30 board will go with it. Even with 3 magnifying glasses I can't find the broken/rotten traces/VIAs on it. Maybe all this surgery crap is playing with my mind and I'm screwing up job that I can do?
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