Many years ago (circa 2005) I wanted a way of viewing all our digital photos so I came up with an idea of a digital photo frame. A laptop on the wall.
The PSU was from an old printer and was rated for 30V 0.4A. I needed 21V so after inspecting the secondary feedback I found it was driven by a zener which I changed our with a 15v and 5.2v in series which gave me 20.2v output- close enough.
Power is supplied by a 3.5mm ring-tip-sleeve plug with a RCA sized outer shield. On the genuine chargers there is a resistor from this to negative(my memory could be wrong on that one) to define the power supply capacity. I didn’t need it as I was not charging any batteries.
The cable to the laptop I made out of a scrap piece of solid core CAT5 cable with 2 pairs for data and the other 2 for power. I figured I would try to only have 1 cable going up the wall to try to make it look a bit nicer.
I got the 1999/2000 model clamshell iBook from a Mac repair shop in 2 pieces so thus different colour shells. I made up a pair of brackets to allow the screen to lay flat against the base open and luckily the screen cables were long enough once taken out of their routing channels to make it the extra distance.
I removed the modem to try to reduce the power consumption and as it would not be needed. I made up a aluminum plate with some solid core CAT5 wires attached to take up the strain as the spot it was attached was not structural.
This is a post in progress so the next information may not be coherent and just notes for myself to finish off
iBeeZz for auto scheduled startup
https://ibeezz.com/en/
4GB HDD 64MB RAM OSX10.2 300MHz G3 processor
Pulled out antenna form screen for another project
