To Charlie or anyone who can help

[daniel t]

To cut a long story short i went to have my ps2 chiped well the people stuffed the ps2 it wont eject anymore and tryed to blame the chip well now they are trying to fix the ejecting problem with no luck and im not taking it back until its fixed,they have had my ps2 for a month and its starting to tick me of,so to get it back asap i thought if i could help them i might get it back quicker.
So what i need is the schematics for the ps2 pal version 4 but any version will do just to give them somewhere to start looking so can anyone please tell where i could get them from or give me some good instructions on what runs the eject where to find it in the sony and what the parts do,so i can give it to the shop and hopefully get my ps2 back very some
thanks for any help
cheers:(

[mr2000jp]

they might have cut the flat cable that connects the power and eject buttons to the board and its really easy to happen .
tell them to check it (it happened with me)

[daniel t]

thanks can anyone else help

[charlie_ps2]

I know of no wiring diagram other than the points to which the chip goes. We need to know more about the chip. Is it NEO2.2?

If so, there is a good chance that they've bridged the two legs on the BIOS chiup that take wires from pins 5 & 6 of the NEO2.2. They control the tray eject mechanism.

The symptoms are usually confirmed with a blinking blue light when you swicth on. What lights are on when you power up the PS2?

[daniel t]

charlie ive already wrote to you about this i got two origa chips pal 1.12 the shop tryed to put them in couldnt get them to work when they took them out the eject wouldnt work
so i just thought if i could get the schematics for the ps2 and give to them they could fix it faster cause they have no idea what does what in the ps2 they dont know what makes the eject work they dont know where to start
remember i emailed you about getting a messiah clone then mailed you back telling you they stuffed the eject and where trying to blame the chip and your replay was chip harmless and so on

[charlie_ps2]

Daniel_T

Yeah- got it. I get hundreds per week! Still what I said is sound advice on the technology aspect of the problem.

Sounds like you're between the rock and the hard place. The shop knows more than you but not enough to put their devil's work right.

Refresh my memory, when they back the chip out, it still doesn't work?

That would usually be bridged BIOS legs, and/or a leg off on the CPU, or a misplaced wire or damage to the flat ribbon cables during assembly/disassembly.

They can't blame the chip. www.thinkprice.com and www.lik-sang.com have such replacement flat ribbon cables.

[daniel t]

yeah thats right no chip in the sony and it just wont eject
cheers

[charlie_ps2]

Daniel_T

So it's back to my earlier reply. That's the diagnosis. If I were you I'd hoik the thing out of there or go to the trader with a magnifying glass and look at the BIOS yourself to see if the legs are bridged and also check the ribbon cables.

Also see a lawyer. You are on rock solid gorund. A 3.3v device is not going to fry a 3.3v circuit under any circumstances that I can imagine.

[daniel t]

thanks charlie im giving them untill thursday this week if nothings done by then the shit will hit the fan
anyway thanks for everones help on this matter
cheers