Hacking Hardware PS1/2 Need a help about for testing the Picfix modchip

[jim74130]

Hello guys im new in the domain, i have documented myself quite a bit about the installation of the modchip but i have a doubt about one thing.. i have read that to test the picfix you need to had to connect the cable of the pin 4 to GND but my question is you need to connect the pin 4 (so the "K" of the picfix PCB) on the GND on the motherboard, or you need to connect the pin 4 to the GND of the picfix PCB ? in a nutshell this is like same the first image or the 2nd ? I thank you by advance for your reply

 

[SylverReZ]

Any safe GND point will do. It is not generally advisable to solder next to the ground mounting holes, as the case would not fit otherwise.

 

[jim74130]

Any safe GND point will do. It is not generally advisable to solder next to the ground mounting holes, as the case would not fit otherwise.

Thank you for your reply Sylver ! oh ok you speak this ?

And for the first image if i connect a cable between the point K at GND of the Picfix PCB and the GND of the Picfix to the GND of the motherboard this is also correct too ? (like this)

 

[SylverReZ]

Thank you for your reply Sylver ! oh ok you speak this ? View attachment 467961

I did mention these, I wouldn't solder to them because they can block the holes and make the case not fit on. The ground copper zones around the outside are recommended.

 

[jim74130]

I did mention these, I wouldn't solder to them because they can block the holes and make the case not fit on. The ground copper zones around the outside are recommended.

Ok i see thank you for your response so ok i go solder the around copper of the motherboard, for the moment i waiting my tin with 40% of lead and my multimeter (i go work on a PS2 Slim v12 SCPH-70004)

 

[SylverReZ]

Ok i see thank you for your response so ok i go solder the around copper of the motherboard

These as highlighed, make sure you don't take away the solder mask as you're soldering to those parts.

 

[jim74130]

These as highlighed, make sure you don't take away the solder mask as you're soldering to those parts.
View attachment 468067

Ok i see thank you for this ! but if i solder this two part and i connect 2 cable (for exemple : at the right i solder the cable for the GND of the picfix, and at the bottom i solder the cable for the GND of the Modbo) is there any risk ?

 

[SylverReZ]

Ok i see thank you for this ! but if i solder this two part and i connect 2 cable (for exemple : at the right i solder the cable for the GND of the picfix, and at the bottom i solder the cable for the GND of the Modbo) is there any risk ?

Nope, since you're soldering to ground, there shouldn't be any conflict.

 

[jim74130]

Nope, since you're soldering to ground, there shouldn't be any conflict.

ok that was a question I was asking myself this is for that, so this is not possible that there has a shorted or that there has other issue with two GND connected on the same copper (very sorry if this question is stupid i begining in the domain so i want no take any risk)

 

[jim74130]

Ok I come back to give news ! so i have install the Picfix but when dismantling the console I had a piece of the fan connector which has been broken and the fan is at 100% when i plug the PSU of the PS2.. but for the pixfix i have test and the console shutdown after 3 secondes so it looks correct from this side (sorry if my english is not very perfect..)

 

[SylverReZ]

You've got it right if the chip powers off after 3 seconds. For the fan connector on the mobo, nothing that I can do about it, other than replace the connector from a donor mobo.

 

[jim74130]

You've got it right if the chip powers off after 3 seconds. For the fan connector on the mobo, nothing that I can do about it, other than replace the connector from a donor mobo.

i have search an image on Google for ilustring my case and this is this pin who have break when i have remove the cable of the fan

 

[SylverReZ]

i have search an image on Google for ilustring my case and this is this pin who have break when i have remove the cable of the fan

That's not connected to anything, those are mounting pins for keeping the connector in place.

 

[jim74130]

That's not connected to anything, those are mounting pins for keeping the connector in place.

Oh ok i see but why does this happen in this case? the 3 pins is good just this pin who has break

Post automatically merged: Nov 9, 2024

Ok i think i has fix the connector ! one of three pins had not very good solder and i had not continuity with a multimeter so i have repair and now when i plug the PSU cable the fan not go at 100%

 

[jim74130]

I'm updating the topic to say that everything went well i have test some PS1 - PS2 backup and it work great thanks you again for your help Sylverrez !

 

[SylverReZ]

I'm updating the topic to say that everything went well i have test some PS1 - PS2 backup and it work great thanks you again for your help Sylverrez !

No problem. I'm glad that my advice has helped.