sync cleaner support

Viewing 8 posts - 1 through 8 (of 8 total)
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  • #23461
    BuckoA51
    Keymaster

    any issues adding a sync cleaner

    #23506
    Anonymous
    Inactive

    Are you using a supergun in between MVS and OSSC, or is the MVS directly modded? How are you powering the MVS (and supergun, if applicable)?

    If you’re outputting CSYNC (to confirm, not sync on composite), then a sync cleaner would be pointless.

    #23508
    BuckoA51
    Keymaster

    no super gun power is from a 5V 3 Amp

    #23509
    nmalinoski
    Participant

    The only thing you need to add is a 470ohm resistor on the CSYNC line as I measured the voltage at 4.21V which is not OSSC friendly.

    If you’re using AV1, then you are correct; TTL should not be used on AV1, because it’s not SCART-compliant; however, AV3 requires TTL sync.

    So, you theoretically could simply wire your MVS’s output to a DE-15 connector and hook it into AV3 without a resistor, but I believe the MVS is old enough that it will probably benefit from the additional low-pass filtering that AV1 offers.

    #23515
    Anonymous
    Inactive

    Is anybody else using the same power supply solution without the interference that you are experiencing, and installed in the same location as yours? I’m guessing that the power supply is the most likely culprit, either introducing noise via the power lines, or due to proximity to components that are susceptible to noise (or both).

    Also, does the PSU have a separate DC and AC ground? If so, are they continuous? I’ve read of folks resolving interference by simply connecting the DC and AC ground points, specifically on HAPP power supplies, but possibly a solution on other models as well.

    #23523
    BuckoA51
    Keymaster

    ill try another psu

    #23526
    Anonymous
    Inactive

    I was recently using one of those microusb charger adapters. Some no name brand from the local electronics store, and probably comparable to what you’ve got. It undervolts, under load, resulting in sync drop outs and introducing noise. The device I was powering accepts 5V-12V. I went to a 12V Netgear power supply (from some old abandoned network switch or router presumably…but in my mind, a more reliably built power supply), and the problems all went away.

    Arcade power supplies typically have the ability to be adjusted, and that really is a nice feature, particularly when powering arcade hardware that has a wide range of specs and needs.

    #23969
    BuckoA51
    Keymaster

    another PSU was the fix

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