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Dejitter mod on PAL 1Chip SNES

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This topic contains 3 replies, has 2 voices, and was last updated by  nrq 3 days, 10 hours ago.

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  • #25061

    nrq
    Participant

    Hello,

    I want to install the Dejitter mod on my SuperCiC’d PAL 1Chip-01 SNES, since my display is constantly losing sync in 60Hz mode. The available installation instructions all cover NTSC boards only. Additionally I want to use it together with my SuperCIC chip.

    Here’s a picture of the back of my SNES PCB: https://i.imgur.com/tZunJYJ.jpg

    Anyone able to help? Thanks in Advance!

    #25121

    BuckoA51
    Keymaster

    Ok passing this information on since I chased up my friend for it, hope it helps:-

    Here’s the info for installing de-jitter on PAL SNES with SCIC. It’s been a while since I installed one of these, hope I haven’t forgotten anything.

    Remove X1, C3, R28 and D1 from SNES motherboard.
    Leave JP2 open
    Leave JP3 open
    Connect 5v and GND to regulator output or any other 5v and GND points.
    Connect MCLK_EXT_i to SCIC clock output
    Connect CSYNC_i to pin 7 of S-RGB chip or any via connected to that pin.
    Connect MCLK_o to left hand through hole of X1 (TC1+)
    Connect CSYNC_o to top pad of R28
    Connect CLK_SEL_i to SCIC mode pin

    #25148

    nrq
    Participant

    Yay, thanks a lot. Looking forward to try that next weekend.

    #25216

    nrq
    Participant

    I think I have everything down besides:

    Connect CLK_SEL_i to SCIC mode pin

    SCIC mode goes to pin 111 of S-­CPUN. Do I keep this connection parallel, so SuperCIC mode goes to 111 and CLK_SEL?

    EDIT: connected it parallel, that was the only way it made sense, thinking about it. Thanks for the help, everything works perfectly!

    • This reply was modified 3 days, 10 hours ago by  nrq.
    • This reply was modified 3 days, 9 hours ago by  nrq.
    • This reply was modified 3 days, 9 hours ago by  nrq.
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