Recent content by AppleTree

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    I broke and fixed Macintosh Portable (backlight). Attached backlight circuit schematic that I reverse engineered

    I wasn't sure where 74AC374's O0 to O4 (5 unused bits you referred to) were connected to. Traces from those pins went under 74AC374 and I couldn't be bothered desoldering it to follow the traces. They must be connected to something, can't be just floating. Maybe I will desolder that chip one...
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    I broke and fixed Macintosh Portable (backlight). Attached backlight circuit schematic that I reverse engineered

    Thank you for the warm welcome. I enjoy watching your videos. In fact, your video on the Portable backlight model taught me how to disassemble the LCD screen case (poking a thin tool in the side holes to unlatch the top bezel), so I could recap the inverter board.
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    I broke and fixed Macintosh Portable (backlight). Attached backlight circuit schematic that I reverse engineered

    I bought a Macintosh Portable backlight model a while ago and I finally got around to working on it. The case and screen were in almost perfect condition. No scratches or cracks. The motherboard was in decent shape too but obviously it needed recapping. I washed it in soapy water, rinsed it in...
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