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Hugotronics
replied to the thread
Macintosh IIfx 68030/50Mhz???
.
Did you make sure the crystal was oriented correctly? It worked fine for me twice.
Jul 12, 2025
Hugotronics
replied to the thread
Macintosh IIfx 68030/50Mhz???
.
Yes, simply replacing the crystal is enough. Even without a heatsink or fan, it should work fine. Is your crystal working properly? I...
Jul 11, 2025
Hugotronics
replied to the thread
Macintosh IIfx 68030/50Mhz???
.
My IIfx is running at 50 MHz without any problems — I use it almost every day. I added heatsinks all over the board and a tiny laptop...
Jul 11, 2025
Hugotronics
replied to the thread
Macintosh Portable 5126 LCD Pinout
.
If you don't get the chime, don't expect anything on the screen. The ROM is probably not being read, possibly due to a broken trace or a...
Jul 11, 2025
Hugotronics
replied to the thread
Recapped Mac II with NUBUS issue
.
To me UC7 is bad, you'll need to replace it.
Jun 12, 2025
Hugotronics
replied to the thread
Macintosh IIci - no life even after recap
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If the RAM is bad or missing, the machine will produce the death chime. If there's no chime at all, the issue is more serious — possibly...
Jun 6, 2025
Hugotronics
replied to the thread
Macintosh IIci - no life even after recap
.
This part of the board drives the soft power circuit. Any broken trace is a problem. To test a trace you suspect is cut without...
Jun 2, 2025
Hugotronics
replied to the thread
Macintosh IIci - no life even after recap
.
Broken traces around UE13 (HC132), or just a bad...
May 3, 2025
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