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It had been in an attic for years and I wanted to rework it before trying to turn it on. I've learned painful lessons from trying to turn on vintage equipment that has sat idle for years. (💥💨) I suspect that it would not have worked prior to recapping.

Hi all. I recently recapped a Mac SE's analog board and am having some trouble with it. When I turn the Mac there is no bong and the CRT lights up with a garbled display. After a few seconds the CRT will begin to dim. I tried adjusting the brightness knob at this time to see what would...

That sounds like a mistake during the recap job. There is no reason why new caps of the correct spec would doom a PSU.

Thanks trag! The interesting thing about the G4s was that if a new G4 with L2 cache was attached to a new CPU board it would treat the former L2 as L3 cache.  I was hoping that was the case with the G3s. :(

Does anyone happen to know if the entire range of G3 CPUs are pin-compatible with one another? In other words, can a 750FX (Sahara G3) be soldered onto a CPU card in place of an original G3 (Arthur)?  I know that the G4s are surprisingly interchangeable and I am hoping that the G3s are as well.

Thanks guys.  I will experiment on a small section.  I expect to retrobrite this Mac as it is because of needing to replace the faceplate too and the color doesn't exactly match.  So I will get the case one uniform color one way or another. :)

The Performa 400 did indeed ship after 7.0 was released BUT "Performa" is only a name.  All Performas are repackaged Macs in a "consumer friendly" way.  That is, a Performa is a base model Mac (LC, Quadra, PowerMac, etc) that is given a Performa name and number and packaged with a collection of...

It looks like paint.  I hope that there is some way I can remove it without ruining the case plastic.

A Performa 475 is NOT an LC III.  The Performa 475 is a 68LC040 and despite also running at 25 MHz, it will absolutely crush an LC III at everything.  It's not even close.  As Gorgonops pointed out, there is a 5x difference in performance from the 475 to the LCs.  That isn't an exaggeration. ...

If you keep running this Mac without recapping it the damage will be permanent.  There is zero doubt the caps have leaked and they are now no longer providing the proper capacitance.  You are putting all of your ICs at risk by using it in this state.  If the analog board/PSU hasn't been recapped...

One more thing to consider:  Identify the SERIES of capacitor in the original design because that matters too.  I'll give you a real-life example.  The power supply in the Quadra 630 uses quite a few United Chemi-Con SXE capacitors.  If you look up the SXE series you will find that these caps...

Awesome, thanks guys!

In "Classic Mac Repair Notes" it suggests replacing C1 with a special arrangement: Does anyone have a picture of what this looks like?  It's hard for me to visualize.  

Are these rebuilt batteries?  If not, there is no point in trying.  The cells are long dead from age.

Of course now I have new ribbons that are cheap enough to not have to fool with trying to make one yourself.  ;) (And personally considering the incredible mess and pain of trying to stuff many feet of ribbon back into a cartridge it never seemed worth it to me to even try that.) Which...

Well said!  MacPallete II does have a few configuration options.  I hope to play with them a bit and see how much of a difference they make. and ... There are different versions of the ImageWriter II.  The early revisions of the printer are very close in weight to the original ImageWriter and...

I'm impressed with the ImageWriter II's color printing.  I've been printing random color pictures on it just to see how they will look.   Nobody would mistake its output with a modern photo printer but for a 30-year old dot matrix it does a good job.   When using MacPalette II it prints the...

Update!   I spoke with the factory folks and they say that there basically is no gear version of the 4C (four color) cartridge, and at this point I believe them.     I have personally seen and know the following types exist:   - Single color (black) short form factor w/ foam (1C-FOAM) - Single...

I agree.  I am trying to find out why they weren't able to deliver on the gear model.  I'll keep you all posted. In the meantime, yes, fresh ribbons.  

The ribbons are here!  Color, glorious dot matrix color! The only real issue is that there was a manufacturing/reliability problem with the gear mechanism and they had to be made with foam rollers.  I guess there is a manufacturing reason for so many of the color ribbons to use foam instead of...