scph1000 ntsc-j mm3 modchip diagram

General information to do with the PlayStation 1 Hardware. Including modchips, pinouts, rare or obscure development equipment, etc.
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omocaig3zza
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PlayStation Model: SCPH-1000
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scph1000 ntsc-j mm3 modchip diagram

Post by omocaig3zza » March 11th, 2023, 9:06 am

Hi there, I'm trying to install an mm3 modchip on my jap ps1 scph1000.

I've tried to follow this: https://quade.co/ps1-modchip-guide/mm3/pu-7/

And this:

With no luck, doesn't read jap copies nor us original disks.

I'm kind of stuck at this stage...

Thanks to anyone who would help :D

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Post by Administrator » March 15th, 2023, 4:12 pm

If we assume your soldering was done right and the code was flashed correctly to the PIC, it could be anything from incorrect install guide images to bad code on the chip. The most common being that the install image that told you where to solder doesn't align with the pinouts and logic on the PIC.

Kippykip made a proper guide collection. Just use that instead and be done with it http://psxdev.net/downloads/modchip_install/MM3.ZIP
Development Console: SCPH-5502 with 8MB RAM, MM3 Modchip, PAL 60 Colour Modification (for NTSC), PSIO Switch Board, DB-9 breakout headers for both RGB and Serial output and an Xplorer with CAETLA 0.34.

PlayStation Development PC: Windows 98 SE, Pentium 3 at 400MHz, 128MB SDRAM, DTL-H2000, DTL-H2010, DTL-H201A, DTL-S2020 (with 4GB SCSI-2 HDD), 21" Sony G420, CD-R burner, 3.25" and 5.25" Floppy Diskette Drives, ZIP 100 Diskette Drive and an IBM Model M keyboard.

omocaig3zza
What is PSXDEV?
What is PSXDEV?
Posts: 4
Joined: Feb 18, 2023
PlayStation Model: SCPH-1000
Location: Australia

Post by omocaig3zza » March 23rd, 2023, 3:24 pm

Thank you so much for your reply.

I'll test that asap and I'll post back the results!

omocaig3zza
What is PSXDEV?
What is PSXDEV?
Posts: 4
Joined: Feb 18, 2023
PlayStation Model: SCPH-1000
Location: Australia

Post by omocaig3zza » April 8th, 2023, 5:04 pm

Hi there, thanks to your guide it's all working fine now! Thanks again! 😁

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