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This forum is part of our mission to promote the preservation of vintage computers through education and outreach. (In real life we also run events and have a museum.) We encourage you to join us, participate, share your knowledge, and enjoy.

This forum has been around in this format for over 15 years. These rules and guidelines help us maintain a healthy and active community, and we moderate the forum to keep things on track. Please familiarize yourself with these rules and guidelines.


Rule 1: Remain civil and respectful

There are several hundred people who actively participate here. People come from all different backgrounds and will have different ways of seeing things. You will not agree with everything you read here. Back-and-forth discussions are fine but do not cross the line into rude or disrespectful behavior.

Conduct yourself as you would at any other place where people come together in person to discuss their hobby. If you wouldn't say something to somebody in person, then you probably should not be writing it here.

This should be obvious but, just in case: profanity, threats, slurs against any group (sexual, racial, gender, etc.) will not be tolerated.


Rule 2: Stay close to the original topic being discussed
  • If you are starting a new thread choose a reasonable sub-forum to start your thread. (If you choose incorrectly don't worry, we can fix that.)
  • If you are responding to a thread, stay on topic - the original poster was trying to achieve something. You can always start a new thread instead of potentially "hijacking" an existing thread.



Rule 3: Contribute something meaningful

To put things in engineering terms, we value a high signal to noise ratio. Coming here should not be a waste of time.
  • This is not a chat room. If you are taking less than 30 seconds to make a post then you are probably doing something wrong. A post should be on topic, clear, and contribute something meaningful to the discussion. If people read your posts and feel that their time as been wasted, they will stop reading your posts. Worse yet, they will stop visiting and we'll lose their experience and contributions.
  • Do not bump threads.
  • Do not "necro-post" unless you are following up to a specific person on a specific thread. And even then, that person may have moved on. Just start a new thread for your related topic.
  • Use the Private Message system for posts that are targeted at a specific person.


Rule 4: "PM Sent!" messages (or, how to use the Private Message system)

This forum has a private message feature that we want people to use for messages that are not of general interest to other members.

In short, if you are going to reply to a thread and that reply is targeted to a specific individual and not of interest to anybody else (either now or in the future) then send a private message instead.

Here are some obvious examples of when you should not reply to a thread and use the PM system instead:
  • "PM Sent!": Do not tell the rest of us that you sent a PM ... the forum software will tell the other person that they have a PM waiting.
  • "How much is shipping to ....": This is a very specific and directed question that is not of interest to anybody else.


Why do we have this policy? Sending a "PM Sent!" type message basically wastes everybody else's time by making them having to scroll past a post in a thread that looks to be updated, when the update is not meaningful. And the person you are sending the PM to will be notified by the forum software that they have a message waiting for them. Look up at the top near the right edge where it says 'Notifications' ... if you have a PM waiting, it will tell you there.

Rule 5: Copyright and other legal issues

We are here to discuss vintage computing, so discussing software, books, and other intellectual property that is on-topic is fine. We don't want people using these forums to discuss or enable copyright violations or other things that are against the law; whether you agree with the law or not is irrelevant. Do not use our resources for something that is legally or morally questionable.

Our discussions here generally fall under "fair use." Telling people how to pirate a software title is an example of something that is not allowable here.


Reporting problematic posts

If you see spam, a wildly off-topic post, or something abusive or illegal please report the thread by clicking on the "Report Post" icon. (It looks like an exclamation point in a triangle and it is available under every post.) This send a notification to all of the moderators, so somebody will see it and deal with it.

If you are unsure you may consider sending a private message to a moderator instead.


New user moderation

New users are directly moderated so that we can weed spammers out early. This means that for your first 10 posts you will have some delay before they are seen. We understand this can be disruptive to the flow of conversation and we try to keep up with our new user moderation duties to avoid undue inconvenience. Please do not make duplicate posts, extra posts to bump your post count, or ask the moderators to expedite this process; 10 moderated posts will go by quickly.

New users also have a smaller personal message inbox limit and are rate limited when sending PMs to other users.


Other suggestions
  • Use Google, books, or other definitive sources. There is a lot of information out there.
  • Don't make people guess at what you are trying to say; we are not mind readers. Be clear and concise.
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Broken Color Classic. Can you help?

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    Broken Color Classic. Can you help?

    Picked up a color classic a few weeks back, knowing it wasn't working. Finally started messing with it today so here's I got:

    The computer turns on (fan works, HD spins), but ONLY if the mobo is removed. Yes that's right, if the mobo is connected, nada. I've tried using several adb keyboards just in case the soft startup key wasn't working. I've tested the pram battery (3.6 volts) on my IIGS and it works fine so its not that (unless I need a brand new one with full voltage?). I've taken the whole thing apart, checked all connections, re-seated all chips and the ram. The monitor doesn't show anything on the screen with or without the mobo connected, but if I turn the computer on without it and then stick it in while its powered on then SOMETIMES, it tricks the computer and the monitor comes on, but nothing more.

    Whatcha think? I'd like it get it working.
    "Deep down I'm pretty superficial." - Ava Gardner

    My Computer Museum Website: http://tanrunomad.com/

    My YouTube Channel: http://www.youtube.com/brianpicchi

    #2
    My guess would be bad capacitors. Macs at that age often need recapping. I had to do it with my LC (which is about the same era as your Color Classic.)

    Comment


      #3
      Bad caps. It's common on those as well as many early 90s Macs.

      Comment


        #4
        Anywhere I can buy replacement caps?
        "Deep down I'm pretty superficial." - Ava Gardner

        My Computer Museum Website: http://tanrunomad.com/

        My YouTube Channel: http://www.youtube.com/brianpicchi

        Comment


          #5
          Originally posted by TanruNomad View Post
          Anywhere I can buy replacement caps?
          I get all my parts here: http://www.mouser.com/

          I LOVE the phone book they mail you that has EVERY part under the sun in it with diagrams and everything! Its a little daunting at first, but after an order or two, it gets real easy.
          It is a mistake to think you can solve any major problems just with potatoes.

          Comment


            #6
            You may want to buy compatible tantalum capacitors to help future proof your repairs. Also, I think it looks nifty if you get black colored caps. Looks... stealthy.

            Comment


              #7
              Another cheap option is a Performa 550 board, nice drop in replacement.. same with a 575.. The CC is pretty limited with what it can do, Mine is stock other then the 040 upgrade in the PDS Slot..

              Comment


                #8
                Have you tried leaving your CC plugged-in overnight with the rear power switch on? If it starts up the next day it's almost certainly bad surface-mount caps on the motherboard. Mine was doing that and a recap completely cured it. This page is an excellent guide to recapping vintage Macs - it tells you how many of what type of capacitor you'll need and offers helpful suggestions. I ordered my replacement caps (black tantalum Nichicons) from Digi-Key.
                Silicon Classics on: YouTube | Twitter | Facebook | Google+

                Comment


                  #9
                  Make sure you use two soldering pencils. I can't tell you how many times I've torn off the contact pads on a motherboard when attempting to remove the caps by doing one side at a time. Also, be patient and don't push too hard. The old solder might take a good while to liquify before allowing the capacitor to come off. The old cap should eventually just slide off with relative ease.

                  Also, I've found solder paste to be immeasurably helpful for me. I have shaky hands, so I could never hold my solder or iron steady enough. Inevitably I'd push the cap off the pads, or I'd fling hot solder everywhere when my hand jerks, making a complete mess. Now I just get a toothpick, put a dab of solder paste on it, place it on the pads or wherever I'm gonna solder, and just touch the iron to the paste. It kinda bubbles and melts, then makes a perfect connection.

                  Doesn't work for everything, but it does wonders for me.

                  Comment


                    #10
                    Originally posted by AppleIIfan View Post
                    Another cheap option is a Performa 550 board, nice drop in replacement.. same with a 575.. The CC is pretty limited with what it can do, Mine is stock other then the 040 upgrade in the PDS Slot..
                    Isn't the "Mystic Upgrade" for the CC in actuality an LC475 mobo?

                    I should be getting my hands on a CC shortly. YAY! A thousand years I've been looking for one...

                    Comment


                      #11
                      The mystic upgrade is a 575 board.. The 475 LC was a pizza box mac..

                      Anything and everything you need to know about the color classic is here, covers everything from the 640x480 mod to general repair, making it a mystic or takky, or PowerColor Classic

                      http://www.applefritter.com/powercol...sic/stuartbell

                      Comment


                        #12
                        don't do me any good if I want to shove a G4 in there. Nyeh kidding

                        the Sonnet cards aren't the only way to go, are they? There had to be other a/m G3/4 upgrades for the PPC macs, no?

                        Comment


                          #13
                          I've got an old Mac Clone with a G3 upgrade not made by Sonnet, I can get the company sometime later tonight since I'm on the bus now.

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