Modbo 750 diagram for GH-015

is that a chip for ps2?
are you trying to load games in a ps2?
how about getting a free mc boot installed to your memory card?

 

sorry i can't help ya, however if you find dead websites on your searches you may try to use archive.org to see cached pages, it helps in searching for lost files

 

GH-015

http://www.modbo.it/downloads/750/V5-V6-diagramme.jpg

If that's not it, then all the 750 diagrams are here

http://www.modbo.it/?Schemi_di_montaggio:Modbo_750

 

Laser protection diodes do fuck all anyway.

V5-6 doesn't suffer from the Mechacon crash issue which was the laser killer. V8 (or maybe 9, can't remember), until 12 do, Sony fixed it with 13 and onwards. Only fix that actually works properly are the pic chip fixes that shut off the laser if they detect the crash.

 

That's right it was fixed with v13+. The comsoft v4 fix was also pretty good. Does anyone know if any of these modern Matrix Infinity clones (e.g. Modbo 5.0) fixed the one game that broke with the 1.93 firmware "Hot Shots Tennis" -freezing on start screen/graphic distortion?

 

Just a reminder, the Diode "fix" also didn't fix anything. The root of the problem was the mechacon crash that happend, when bad media was used.
If anyone of you guys deals with such a console, please use the Matrix PIC fix and nothing else.

EDIT: Yeah, basically what @Armadillo said

 

Can you take a picture of the install?

Edit: Make certain the wires for GND and 3.3 are thicker. I also agree the "diode fix" is worthless. The Comsoft v4 fix is an elaboration on the original "Matrix Fix" and was also more expensive but popular while it was still being sold.

 

The GND and 3.3 wires are way too long. What awg wire is being used? The GND and 3.3 should be at least 26 awg (thicker).

Edit: Try replacing only the GND and 3.3 wires with even thicker wire, if it's difficult to get the chip closer to the points.

 

The chip might not be getting sufficient power. Perhaps it's like when installing a 7404 Hex Inverter into a Retron 1 (NES Clone) to improve compatibility (e.g. Castlevania 3). The original AC adapter needs to be replaced to provide more power to the system to prevent corruption in game.

 

PS2 chips can just be fussy.

Matrix logo is provided by the points going to the bios iirc. That part, not too fussy and will generally always show, unless the install is completely wrong and broken.

Part that boots backups can be really fussy and refuse to play nice for a number of reasons. If changing 3.3V/GND to thicker gauge stuff does nothing for booting backups, then you want to be looking at A G H I B. Shorten them if you can, try not to have them cross over each other too much etc.

 

Triangle + circle. Not just circle. Careful going into the menu, earlier modbo chips would die from accessing/saving settings. I'm not sure how the 750 behaves there.

Doesn't look like he connected them to each other. Seems to me from the start he did not connect point H as some diagrams claim pal consoles don't need it (even though it's apparently the other way around, ntsc consoles not needing it) and the solution was to connect both H & G to the correct points on the motherboard.

The alternative 3.3V is the via (the circle/hole), you can see it on this diagram for a different chip.

http://campad.com.au/products/playstationII/PS2PAL-V5-diagramme.jpg