Rev A iBook mobo questions
Submitted by doug-doug the mighty on February 10, 2006 - 4:29pm.
Hardware Hacks
I am toying with the idea for some hacks to a Rev A iBook (blue clamshell).
Of special interest to me is the solder pads on the rear of the mobo as well as other places. On the rear of the mobo (handle side, top) there are two double-rows of solder pads. The first has 140 pins and I presume is for a docking port (obviouly left out). To the port side of this are four holes labeled +5V, DAT, GND, etc, I presume this is where a USB port would have gone. To the CD side is a row of 20 solder pads.
? - Am I right that the 140 pad group was for a docking port?
? - What could the 20 pad group be for?
? - It looks like there are a few related components missing for a rear USB port, but has anyone got any 'special knowledge' on this part of the mobo?
Underneath the hard drive is a small double row of solder pads. Speculations are invited at this point.
Nearby, between the USB port and the headphones jack, there is a nice little six-holespace where the Fire Wire port exists on later models. I am sure that it is just a matter of a few caps and resistors, but does any one with better insight know if the system would support this and if so, what parts I might need?
Also, if memory serves, according to the block architecture, the keyboard and trackpad are ADB-based. Does anyone know where on the mobo I can tap into the feed into the device controller or if I could hit the trunk somewhere? I did not look too long last night since I did not have the time, but I figured someone else might know.
This is just some homework to see if I could make a future project out of this (and add it to the list of things half-finished).
TIA