Modchip reinstall need help

General information to do with the PlayStation 1 Hardware. Including modchips, pinouts, rare or obscure development equipment, etc.
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pioingo
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What is PSXDEV?
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Joined: November 19th, 2018, 1:32 am

Modchip reinstall need help

Post by pioingo » November 19th, 2018, 1:42 am

Hello Experts,
i am new here i have not found a post over these.
I have big Trouble with my Modchip. I must desoldering the chip.
Now i have soldered in the Modchip. But no Function. what i make wrong??

ist a 12508a soldered 5 wires.

Board Version PU-8 1-658-467-22

Thanks for any help…


Anyone can tell me how on what points right i must solder the chip.

Haldrie
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What is PSXDEV?
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Joined: March 31st, 2019, 6:52 am

Re: Modchip reinstall need help

Post by Haldrie » April 2nd, 2019, 10:43 am

Not sure if you still need help but I recently joined and posted a diagram of how to install a MM3 mod chip with stealth on the SCPH-1001 PU-8 motherboard. This install uses 7 wires instead of the usual 4 wires (so if you have 5 wires on yours that might be part of the problem). The only pin on the chip that is not used is pin 2 which on a MM3 mod chip is used to connect a LED to show when the chip is working but is completely optional.

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