Blargaman91
Well-Known Member
I don't know if it's widely known whether the component cable can work on a DOL-101 cube or not, but I can't really find any documentation that confirms anything.
EDIT: I did find some other documentation, with mixed results.
Anyway, here are my findings.
This is the input to the GameCube AV chip (left side):
These are the same data lines that are routed to the digital port on a DOL-001 GameCube. The B012355/B012455 chip in the component cable picks up on them and kind of acts as an alternate AV chip for the Cube to output video.
Seeing as the DOL-101 cube still has the same AV chip and GPU as the DOL-001, it's got to have the same data lines too, right? That it does.
Thus, wiring the component cable directly to those pins of the AV chip on a DOL-101 Cube (note that 27 MHz, LRCK, DATA, and BCLK are not necessary) should make it function like normal. Except the component cable has two other data points:
DetectCable and 54MHz.
Looking closely at what hides in the digital port of a DOL-001 Cube, I've found that those two connections exist elsewhere. They are routed straight to the GPU.
As mentioned before, each GameCube shares the same GPU. So by wiring directly to the GPU...
...a GameCube component cable should be able to function on any DOL-101 GameCube.
Proof of concept:
The Cube displays 480i and 480p as and when expected, like any DOL-001.
There are a couple transistors there in the second picture connected to the GPU as well as ground and 3.3v because there are present on the top side of a DOL-001 motherboard but not a DOL-101. The component cable works without them. No idea what they do, really.
Some of these pictures (diagrams) are owned by Ashen, ZeldaXPro
EDIT: I did find some other documentation, with mixed results.
Anyway, here are my findings.
This is the input to the GameCube AV chip (left side):
These are the same data lines that are routed to the digital port on a DOL-001 GameCube. The B012355/B012455 chip in the component cable picks up on them and kind of acts as an alternate AV chip for the Cube to output video.
Seeing as the DOL-101 cube still has the same AV chip and GPU as the DOL-001, it's got to have the same data lines too, right? That it does.
Thus, wiring the component cable directly to those pins of the AV chip on a DOL-101 Cube (note that 27 MHz, LRCK, DATA, and BCLK are not necessary) should make it function like normal. Except the component cable has two other data points:
DetectCable and 54MHz.
Looking closely at what hides in the digital port of a DOL-001 Cube, I've found that those two connections exist elsewhere. They are routed straight to the GPU.
As mentioned before, each GameCube shares the same GPU. So by wiring directly to the GPU...
...a GameCube component cable should be able to function on any DOL-101 GameCube.
Proof of concept:
The Cube displays 480i and 480p as and when expected, like any DOL-001.
There are a couple transistors there in the second picture connected to the GPU as well as ground and 3.3v because there are present on the top side of a DOL-001 motherboard but not a DOL-101. The component cable works without them. No idea what they do, really.
Some of these pictures (diagrams) are owned by Ashen, ZeldaXPro
