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Oh, I should add that I don't own a multimeter that measures capacitance, sorry.

Thank you for this great information! The labels on most of the caps were gone when I got the board. My best information is here: viewtopic.php?f=9&t=17724, and unfortunately, I don't have a label for C1 or C2. Your list provides a lot more than I had before, however. I didn't replace the...

Apologies for bringing back a dead thread, but I have an update. It turns out that I was getting audio with headphones/speakers attached, but nothing through the internal speaker. My solution was to leave a set of speakers attached. To avoid wasting electricity, I left them unplugged when the CC...

I spoke too soon--just needed to reseat the ROM chips. And now the co-processor works! So the washing solved one problem but not the audio issue. I'm going to spend some time with the pinouts of the audio jacks to see what, if anything, needs to be shorted.

Thanks for the suggestions, and those will be my next steps once I get back online. Unfortunately, I have taken a step backwards; after the washing I now have a non-booting 550 logic board. The original CC board still boots normally, but using the 550 logic board (PRAM battery installed or not...

Can anyone point me to the capacitor values for the 550/CC2 logic board? They aren't listed in the wiki. I'd settle for a high-resolution picture of the logic board allowing me to see the cap labels (couldn't find that either). The labels have come off of all of mine except for a few. Here's...

Is it possible (through the use of some type of adapter or card combo) to have both the LC PDS IIe card installed and be able to use ethernet? I'm not talking about giving the IIe environment access to ethernet; rather, can you have both cards installed for the convenience of using either...

Thanks, Dennis, for your interest and help. I know a little bit about circuits and hardware from a decade of tinkering, but I have no textbook training. Basically, every time something goes on one of my old machines, I learn something new about electronics. :D I did use a pair of working...

Here we go- No plug inserted Headphones/Audio Out - No pins are connected. Pin 1 conducts to the thread (ground?) on the jack. Mic/Audio In - 3 connects to 4 - 5 connects to 6 With plug inserted Headphones/Audio Out - 1 connects to 2 - 1 connects to 4 - 2 connects to 4 Mic/Audio In...

I should have added that I did try the board without the mic and headphone ports installed--no audio. Assuming I cleaned it up properly, does this mean that I've ruled out the bad audio ports?

My Color Classic saga continues. An LC 550 logic board brought my CC up to "CC II" status. It's so much faster! And so much RAM! All is well save for two problems: - No audio on the internal speaker or headphones (sound works fine with original CC logic board) - It won't boot with the 68882...

The epoxy fix is good news. Epoxy I can do. Are you talking about the yellow epoxy on the bottom (the PCB side around the pins), or at the top, where there doesn't seem to be any epoxy: Or am I cementing it around the base on the outside? This cap thing is too bad. I like tinkering with it...

I hope its okay that I start a new thread for this... it's the same machine as my prior post (Color Classic) but new symptoms. History: A while back I was having a degauss problem (http://68kmla.org/forums/viewtopic.php?f=7&t=16895) that has cleared up ( 8-) ). I've been having flyback...

Update: I'm also having some pretty bad brightness fluctuations on the monitor.

Well I finally opened it up this week, and as expected, everything was connected properly. Still have the same problem after putting it back together. The haze isn't too bad, actually, but I'm concerned that the machine is on its deathbed... I have other symptoms. It's apparently common (?)...

Thanks for the suggestions. I'm planning on opening it up soon and taking a look. Maybe the degauss cable is loose or disconnected from the analog board? I'll also look at those components, but I'm not sure I'm willing to or capable of using magnets around a CC. I may never have another one, so...

Do I have any way of verifying bad solder or bad thermal-MOV? Are we talking about weak solder throughout the board or a couple of trouble spots? I've re-soldered failed joints on the SE analog board, no problem. But if we are talking about something in the middle of the power supply with a lot...

I remember that Tetris! It was listening to the music that made me sure. Sorry I didn't pay the fee... I was 12, I think, when I played it. At that time, I too had a poor concept of intellectual property. I wrote a freeware game in World Builder. I remember being really excited when I saw it...

I finally have a Color Classic through the generosity of a man getting out of old macs on Craigslist. I've had it for a few months, but recently, I noticed this pattern on the monitor (see pic). :-/ The photo doesn't show it well; there is a pinkish splotch horizontally across the middle of...

The coating was always the same metallic color. At no point was the inside matte or any other color. The only noticeable change was the peeling. Sanding it down helped, although it's impossible to get it 100% clean (at least, I'm not willing to spend that much time doing it). I scrubbed the...