Strange Wires

General information to do with the PlayStation 1 Hardware. Including modchips, pinouts, rare or obscure development equipment, etc.
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gh0stmusc
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Strange Wires

Post by gh0stmusc » September 8th, 2016, 2:04 pm

I was bored so I opened up a PSone I bought on ebay a long time ago. its still works. But the motherboard has some weird jumper connections on it. Any one have any idea what they are for?


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Post by Administrator » September 8th, 2016, 2:45 pm

Modchip. Allows you to boot CD-R's that your computer can burn.
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.

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Post by gh0stmusc » September 8th, 2016, 2:54 pm

But where is the chip? Its just jumping different point on the board. The only added chip i found is a voltage regulator.

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Post by sickle » September 8th, 2016, 3:08 pm

Is the chip not wrapped in the tape on the left?
(Usually the the pins are flattened out like a squashed bug)

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Post by gh0stmusc » September 8th, 2016, 3:32 pm

oh shoot there is a chip in there. I thought it was just a wire wrap

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Post by sickle » September 8th, 2016, 3:39 pm

okay, put it's clothes back on now...
Also, congrats on the pre-chipped system :D

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Post by gh0stmusc » September 8th, 2016, 4:32 pm

so it should run any cd with a game iso burned to it? I guess ill have to test it to see if it still works cause i feel like i had to do the swap trick to play back ups before......but maybe i was just doing it with out needing to.

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Post by likeabaus » September 8th, 2016, 8:17 pm

It looks like you have a stealth chip (judging by the amount of wires coming out of it) so it should play pretty much any game you throw at it, burned or imported. Although if you try and play an import that outputs a video signal that's different than what your tv can handle (mainly if you have an older CRT or one of the early flatscreens) (NTSC when you tv is PAL or vice versa) it won't display correctly, but you can use a boot disc or just patch your iso to the right video mode and reburn to get around that...

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