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Need help - colour mod a PS1 - SCPH-1002

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  • 16-04-2013 1:09am
    #1
    KeRbDoG
    Registered Users Posts: 4,215 ✭✭✭


    After 30min of searching, I'm giving up :)

    Anyone know a guide how to 'colour fix' a PAL PS1 (SCPH-1002) to display NTSC games in colour on a PAL TV?

    I remember doing this mod before to an early PS1 'back in the day' but from what I remembered it was just a trace cut and jumper wire mod.

    Any help would be great, going mad at the mo - starting to doubt myself :D


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  • Options
    #2
    Myrddin
    Closed Accounts Posts: 33,733 ✭✭✭✭Myrddin


    KeRbDoG wrote: »
    After 30min of searching, I'm giving up :)

    Anyone know a guide how to 'colour fix' a PAL PS1 (SCPH-1002) to display NTSC games in colour on a PAL TV?

    I remember doing this mod before to an early PS1 'back in the day' but from what I remembered it was just a trace cut and jumper wire mod.

    Any help would be great, going mad at the mo - starting to doubt myself :D

    Yeah I remember this alright, seems to differ according to model though?
    For PSX Models SCPH5502 and SCPH1002 a crystal needs to be installed in order
    to play NTSC games in colour on a PAL TV. This Conversion will not Convert the
    NTSC 60Hz to PAL 50Hz. So if flickering occurs adjust V-HOLD on older TV's.

    http://www.angelfire.com/sk3/modzone/id_ntsctopal.htm

    102pm41(2)_cf.jpg

    http://www.assemblergames.com/forums/showthread.php?37319-PlayStation-1-PSone-Colour-Correction-Modification


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    #3
    KeRbDoG
    Registered Users Posts: 4,215 ✭✭✭KeRbDoG


    Umm, now to try and find a QXO-1100 5V 4.433M Crystal Oscillator - seems you can't get them anymore :(


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    #4
    Myrddin
    Closed Accounts Posts: 33,733 ✭✭✭✭Myrddin


    KeRbDoG wrote: »
    Umm, now to try and find a QXO-1100 5V 4.433M Crystal Oscillator - seems you can't get them anymore :(

    Surely be easier to get another PS1, one that the wire mod works on?


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    #5
    KeRbDoG
    Registered Users Posts: 4,215 ✭✭✭KeRbDoG


    EnterNow wrote: »
    Surely be easier to get another PS1, one that the wire mod works on?

    True, but that wouldn't be a challenge :D Will keep looking for the oscillator


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    #6
    Myrddin
    Closed Accounts Posts: 33,733 ✭✭✭✭Myrddin


    KeRbDoG wrote: »
    True, but that wouldn't be a challenge :D Will keep looking for the oscillator

    Thats the spirit...you should post here more often! :)


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    #7
    KeRbDoG
    Registered Users Posts: 4,215 ✭✭✭KeRbDoG


    Had another look inside the SCART connector of the PSX-RGB->SCART cable I had, while the RGB cabling is there pin 16 doesn't have anything on it and from SCART Standards that needs to be 1~3V+ to tell the screen to accept an RGB signal. Ummm. Anyone else have a RGB->SCART cable for any other system which they can check if pin 16 on the SCART end is wired and being supplied power?


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    #8
    Myrddin
    Closed Accounts Posts: 33,733 ✭✭✭✭Myrddin


    Just checked mine there, it has pin 16 connected to pin 8 via a 15 Ohm resister {I think - it has a brownish purple, then green then black colour code}


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    #9
    KeRbDoG
    Registered Users Posts: 4,215 ✭✭✭KeRbDoG


    EnterNow wrote: »
    Just checked mine there, it has pin 16 connected to pin 8 via a 15 Ohm resister {I think - it has a brownish purple, then green then black colour code}

    I know very little in terms of voltage reduction with resistors - I will check more cables to see what value they are using


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    #10
    Myrddin
    Closed Accounts Posts: 33,733 ✭✭✭✭Myrddin


    KeRbDoG wrote: »
    I know very little in terms of voltage reduction with resistors - I will check more cables to see what value they are using

    There's definitely a feed to that pin anyway, & its a decent RGB cable from consolegoods


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    #11
    KeRbDoG
    Registered Users Posts: 4,215 ✭✭✭KeRbDoG


    EnterNow wrote: »
    There's definitely a feed to that pin anyway, & its a decent RGB cable from consolegoods

    Fixed - turned out that the pin 16 (used to signal that your using a RGB source) wasn't connected at all! Good old cheapo eBay cable.
    I used the +5v that was already connected from the PS1 to pin 8 on the SCART connector (one which makes the TV switch to that SCART input) and connected it to pin 16 with a 220ohm I had and BAM! All sorted :) Crisp'n'clear RGB and colour for NTSC games!
    Cheers for the info


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