Chip replacement.

General information to do with the PlayStation 1 Hardware. Including modchips, pinouts, rare or obscure development equipment, etc.
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Avrora115
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Chip replacement.

Post by Avrora115 » December 11th, 2020, 2:42 am

Hi!
Tell me who is fumbling in PS1. Is it possible to remove the "12C508A" chip from the SCPH-9002 PS1192.168.1.1 from the PU-23 motherboard and replace the non-working "ZiLOG SL1925" chip in the SCPH-7002 PS1 with the PU-20 motherboard? Will pirate 7002 work and read? Or is each chip stitched for a specific set-top box model? Thanks!

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Shadow
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PlayStation Model: H2000/5502

Re: Chip replacement.

Post by Shadow » December 26th, 2020, 2:49 am

It will work, but you'll need to match the pins of the modchip of the same carrier signal since if you follow a guide online for example showing you which pin solders where, it will most likely not work because each modchip is typically flashed with a different pin configuration in the PIC chip code itself.
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.

zacherykessler
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Re: Chip replacement.

Post by zacherykessler » January 5th, 2021, 12:26 pm

Thank you for the information! I was looking and couldn't find. You helped me!
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