PS1/2 Mod a Phat PS2 with nothing ?? is it possible

[scousethief]

Hi magsor thank you but the chip is completely different

it is this one

http://eboxing.en.ec21.com/Matrix_Infinity...81_4038282.html

which is missing some of the points

 

[Magsor]

They are the same your chip is just missing F which is just DVDRW support(who cares?). RST is RE and SX is S.

EDIT : I was wrong i looked it up more closely and SX is S now I dont know where to Connect CX still looking

 

[scousethief]

http://www.modbo.it/downloads/V7-V8-diagramme.jpg

just found that magsor everything looks the same except some of the little resistor thingies

in a different place.

http://www.ioffer.com/i/ps2-modchip-matrix...456?source=eisi

top right chip is the one

 

[Magsor]

MODBO 4 has the CX solder point. Look it up you should be ready to solder up.
http://www.sksapps.com/diagrams/ps2/

 

[scousethief]

Is there any way to test the chip is working without a game ?

 

[Schlupi]

Is there any way to test the chip is working without a game ?

I wouldn't think so... if you are trying to play a burned game, it would only be tested with a bunred game, right?

a quick question for the PS2 pros here. I have a PS2 SCPH-79001 and I was wondering if this cheapo chip is the right one to get:

http://www.dealextreme.com/details.dx/sku.44852

and if there is a diagram for it somewhere...

 

[Magsor]

All the modchip on dealextreme will work. But be aware that it take A LOT OF SOLDERING SKILLS to install this in a slim ps2. As for the diagrams check out the links above from filetrip and skapps all those modchip are very similar one to another.

 

[scousethief]

all soldered in , tested for touching wires with meter and all ok but no display ?

edit working but wont read disks including originals

 

[dilav]

all soldered in , tested for touching wires with meter and all ok but no display ?

edit working but wont read disks including originals

Does it say matrix, or some logo when starting up? and does holding Triangle + circle then turning on display a settings menu?

 

[scousethief]

no just boots direct to the sony screen

 

[dilav]

no just boots direct to the sony screen

iirc the r,v,u,t,q,m,n,o,p,w are the "bios" points, when they are installed correctly, it should show modbo, or matrix logo before the sony screen and/or be able to access the settings menu. you may also need to double the ground and power wire if your wires are small. The a,b,g,h,i,s wires are for the disc drive protection.

 

[scousethief]

thanks ill go over everything again

 

[Son of Science]

How can you mod a PS2 if you don't have one?

 

[scousethief]

I removed the chip... but left the wiring to the main board attached and she fired up perfectly fine ??? possibly a dud chip ? ill have another crack at it tomorrow as its geting late now.


I can solder directly to the bios chip legs for points RVTQU rather than those little pads and it shouldnt cause any problems ?

Is point S or SX absolutely necessary ? is there an alt point ? none of the diagrams are very clear so i soldered it to the bottom edge of the top fuse/resistor.


I think i a going to have to find more accurate diagrams
http://www.gametop.de/popup.php?show=galle...d=38&id=210
This diagram has less pins connected , the Y in a different pad only the I is soldered to the reverse of the board etc

 

[Magsor]

I read that you have to have CX connected.
check this diagram

 

[scousethief]

There is no CX m8

http://www.diytrade.com/china/4/products/5...inity_1_99.html

 

[Magsor]

There is no CX m8

http://www.diytrade.com/china/4/products/5...inity_1_99.html

lol ok but img2 in your link has

ok then this one is the good one 18 wires like the description. G and H remain unwired.

 

[Schlupi]

All the modchip on dealextreme will work. But be aware that it take A LOT OF SOLDERING SKILLS to install this in a slim ps2. As for the diagrams check out the links above from filetrip and skapps all those modchip are very similar one to another.

I know. I am in a digital electronics course and have been soldering since I was 10.

It'll be a fun project for me. Thanks for the heads up though.

 

[dilav]

I removed the chip... but left the wiring to the main board attached and she fired up perfectly fine ??? possibly a dud chip ? ill have another crack at it tomorrow as its geting late now.

It is possible to have a defective/dud chip. I had a quite a bit of bad modbos and a couple of dms.

I can solder directly to the bios chip legs for points RVTQU rather than those little pads and it shouldnt cause any problems ?
should be no problems obviously. Make sure the trace goes to the actual leg tho.

QUOTE(scousethief @ Jan 17 2011, 03:19 PM)

Is point S or SX absolutely necessary ? is there an alt point ? none of the diagrams are very clear so i soldered it to the bottom edge of the top fuse/resistor.

S is not necessary, S wire is for PS1 games.

so... what chip do you have again?

 

[scousethief]

http://www.dealextreme.com/details.dx/sku.52718

this one m8