Matrix Infinity green dot with GH-072-42

[inverto]

Hello people,

I'm trying to install a Matrix Infinity chip in a PS2 model 90004 with a GH-072-42 board. But I can't seem te find a decent scheme for soldering.

I can only find these:
http://www.modchip-wizard.com/produc...stallation.htm

or these:
http://img177.imageshack.us/img177/6...ygh07142dd.jpg

But all of them are for the modbo chip or for the GH-071-42 board. Does anybody have a tip or a scheme for me?

Thank you.

[amp2006]

dude if no one help you my friend is gonna make a you diagram and then i will post it

[froid_san]

don't know if this matter but i got a diagram for GH-072-42 form modbo, which is a clone of matrix infinity.

you could also use this as a base diagram since most diagram are the same, it only differs on what letter they call what.

[inverto]

dude if no one help you my friend is gonna make a you diagram and then i will post it

wow thanks amp2006. That would really help me. Those diagrams for the modbo have points on them the matrix doesn't have, like GND 1 and 2 etc. This is the first time I am going tot do this, so it would be very helpful if I would have an exact diagram

[amp2006]

well i don't know nothing about soldering so i am gonna ask my friend he is an expert .

keep in touch it should be done tomorrow .

[amp2006]

dude can you take a pic of your Motherboard but at the location i pointed at this diagram ( in red color)

[Gradius]

Please, let me know what is written on BIOS, I need that info to add on wiki.

If board and BIOS changed, I'll call it a v19.

The device drivers seems to continue equal: D0020U.

[Gradius]

Looking at 1st diagram, there is no "S" point on Matrix, just "SX", so:

S = SX (for PSX games) and
RE = RST (Reset).

On Matrix Infinity there is a "hidden" point called as "F" (next to RST) and it was used for CD-RW & DVD-RW medias only (optional).

3.3V point is different on diagram I found and edited below, you will need to re-check that:


Also, that 1k ohm resistor between "W" and "GND" is really necessary? I stopped modding consoles, so I don't recall that thing.

All the rest looks fine to me, unless they changed the pcb.

The "CX" point looks like Eject, I'm not 100% sure, but since they mentioned "F" it might be something related to DVD-RW (hence optional).

[Gradius]

Sorry for "bump" this one, but I collected more infos.

Found the reason for resistor here:
http://psx-scene.com/forums/showpost...0&postcount=26 (SCPH-90000 Matrix Infinity Diagram)

Another diagram:
http://psx-scene.com/forums/attachme...4&d=1232092877

However, someone else did the resistor thing and only worked fine for just 2 reboot, then he got no more boots (fried Matrix?), so the alternative to resistor is necessary (needed to test if is reliable as well).

Alternative to the resistor:
http://psx-scene.com/forums/attachme...7&d=1232813165

Good luck, and if you can, please post photos of your PCB (good quality please).

[inverto]

Hey Amp2006, here's a picture. Sorry for the bad quality, I don't have a high grade camera for such close up pictures.