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    help with Mac Plus vertical bars?

    Hi, My friend just got a Mac Plus, which was dusty but not obviously corroded anywhere; after cleaning and checking +5 V (4.98) and +12 V (12.15) rails, she powered it on and saw this: With 1 MB and 4 MB of RAM from her SE/30, it shows these (respectively): All symptoms are consistent for...
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    help with PowerBook 100 LCD signals?

    Hi again, I have some more questions about the PowerBook 100 from this thread. We weren't able to properly fix the missing LCD_VEE, but my friend got an isolated bench PSU for another project, and we realized she could temporarily create LCD_VEE with it to test further. She removed Q12 (page 11...
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    PowerBook 100 display, LCD_VEE issue but inductors ok?

    Hi, this is my first post so I apologize if I'm breaking any rules, please let me know. My friend bought a non-functional PowerBook 100; after fully cleaning and recapping, it turns on the backlight, chimes, and makes Mac OS sounds when pressing keys. However, the screen is completely blank...
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