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twillkickers

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  1. 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 be frying that little chip? I'm OK at soldering, but still pretty bad at diagnosing component-level issues. I also have a lower-end fluke multi-meter so I can check diodes, capacitance, and that sort of thing. In fact, I checked the two larger caps and they were still functioning. Thanks to anyone who can give some advice! Edit: Just realised I put this in the Apple II Category by mistake. Could a mod help me move it to the PowerPC category? Thanks.
  2. twillkickers

    Trouble Installing GS/OS 6.0.1

    Just got my GGLABS RAMGS/4 in the mail, installed it, turned on DMA, and everything runs as it should! Thanks for all the advice from everyone. I'm happy to have learned something new.
  3. I have a lot of old Apple/Macintosh equipment with a lot of broken plastic tabs. Is there any reliable method for gluing/welding model pieces? Any particular glue that bonds really well with the plastic? I'd love to learn about experiences from others. For myself, I can say that Testors brand model glue seems to barely bond at all, it looks nice until you try to flex the joint at all. Thanks for the input!
  4. twillkickers

    Trouble Installing GS/OS 6.0.1

    I really appreciate the solution. Looks like I'll be getting a new RAM chip soon! I'll report back once I've installed it.
  5. twillkickers

    Trouble Installing GS/OS 6.0.1

    Thanks for the tips, I am going to try out the official apple RAM module I have at my parents' place later to see if my Applied Engineering GS-RAM is compatible with DMA. Keep in mind that it is just a little over 1MB of ram though. Speaking of which, I tried to boot just using the logic board RAM, but my IIgs only has about 155k of logic board RAM. Is there any way to solder upgrade the logic board ram on my machine? In addition, when I try to boot to the drive with DMA turned on and the Applied Engineering GS-RAM inserted, I get a "Fatal system error-> 0308" screen. Maybe that error will help explain the problem...
  6. twillkickers

    Trouble Installing GS/OS 6.0.1

    No, I do have an applied engineering ram card. Around 1mb.
  7. twillkickers

    Trouble Installing GS/OS 6.0.1

    Tried a million things and eventually guessed my way to victory. I turned off Direct Memory Access for the Sandwich II card by putting the no 1 dip switch in the open position. Any guesses as to why this worked? The only other card I have installed is Uethernet II.
  8. twillkickers

    Trouble Installing GS/OS 6.0.1

    Tried 31MB and 30MB partitions, and got the same exact error. Any other possible causes?
  9. twillkickers

    Trouble Installing GS/OS 6.0.1

    How big was the drive you ended up using? I switched to an 80mb drive and got the exact same error.
  10. Hello all! I just got a nice new 20SC external SCSI drive and connected it to my Sandwich II Card in the IIGS. The 20SC has been re-fitted with a 512 megabyte SCSI drive from IBM. My Sandwich II is in slot 1. I partitioned the HDD into two partitions using Apple II High Speed SCSI card utilities. However, when I try to install GS/OS, I get a message that says "Cannot INSTALL. Need approximately 823k more space." This doesn't make much sense to me, since my partitions on the drive are 32 MB each. What is going on? I appreciate your help!
  11. twillkickers

    Opening up a PowerBook 500 series AC Adapter (Model No M1893)

    Sorry for the late update. I basically destroyed the plastic getting it open. Still not entirely sure if there is a proper way. If someone has a good fix tutorial for these it would be appreciated!
  12. twillkickers

    Opening up a PowerBook 500 series AC Adapter (Model No M1893)

    I can confirm. Just peeled off the label and there were no screws under there. What tool did you use to get it open?
  13. I am trying to open up an old PowerBook 500 series AC adapter to recap it. However I can't find any instructions online of how to open one. Has anybody opened up one before? Are there any screws under the sticker need to undo first, or should I just start trying to ply the plastic open at the divide? Thanks.
  14. twillkickers

    Connecting to Internet on an LC II

    Thanks for the tip. I tried configuring manually. I entered a static IP in the IP field. I entered my router IP in the "router" field and I entered 8.8.8.8 and 8.8.4.4 as my DNS (Google DNS.) However, the same issue still seems to be happening. Am I missing something? Should I try different settings?
  15. I am having trouble getting my LC II to connect to the internet. I am trying to connect directly via ethernet using an Asante MCiLC network card. I've installed all relevant drivers, and I am using Internet Explorer 4.0.1. I am using System 7.5.5. When I connect my Ethernet cable directly from the LC II's network card to the router, the upper light on the network card blinks quickly. However, when i open up Internet Explorer 4.0.1, I get errors such as "Data transfer error (-28)" and "The website could not be found" for every website I type into the address bar. I have set my TCP/IP settings to DHCP. Am I missing anything? Any and all help is appreciated! I have been working on this all day and now I am very tired
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