Messiah 750 Random Problems on new Slim EURO PAL 75004 GH-041-34 PS-2!!

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Messiah 750 Random Problems on new Slim EURO PAL 75004 GH-041-34 PS-2!!

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retroborg

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25. June 2006 @ 06:17

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Hello,
I just installed a Messiah 750 Mod chip in a brand new Slim EURO PAL 75004 GH-041-34 PS-2.
http://www.cj-inter.com/modchip/small%20image/Messiah%20750%20for...

The chip does work, but I encountered some problems!
Some times in random, when I insert a PS-2 game CD/DVD (Either original or copy), it will begin to boot but after the ?PlayStation 2 Logo? shows up, it will show the Red screen saying that it does not recognize the disc. Some times it will even go past the PlayStation 2 logo screen but it will give me the Red screen after the game title screen shows up and after I press the start button.

This happens randomly in both original & copied CD/DVDs and I don?t seem to find any specific pattern!

I used the H2O V14 diagrams:
http://d-vices.com/subzero/h2o-14.jpg

I have connected the ?Z? point but not the ?H? point which is for the Japanese PS-2s.

The only thing that could have gone wrong was that I originally connected the 5V point of the chip on a ground point on the PS-2 PCB. So when I 1st started the PS-2 it did not boot up at all, but I corrected that and now it works but with the above random problems.
The rest of the connections are all fine.

Could this be a defective chip?

I've read that you should not connect the "Z" point, but could that be causing the problem?

Any help will be appreciated.
Thanks in advance.

[ + quote]

Q4i

Suspended due to non-functional email address

28. June 2006 @ 21:44

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You should use install diagrams specific to your chip, the contacts might be labeled the same but that doesn't mean that they do the same thing. I also noticed that the install pics give both a 3V and a 5V power supply, and your chip seems to need just the 5V. Also, make sure that your wires are as short as possible and that they don't cross too many other wires.

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