Humming/buzzing noise from CRT TV speakers using RGB cables

Discussion in 'Repair, Restoration, Conservation and Preservation' started by helakustorm, Feb 11, 2018.

  1. helakustorm

    helakustorm Robust Member

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    Hello,

    Every time I play a game on my PlayStation 1/2 PAL and GameCube PAL using RGB cables on my Sony Trinitron there is a humming/buzzing noise coming from my TV speakers when I go up the volume.
    On my GameCube I use the original RGB cable and on my PlayStation 1/2 I use a bought cable from RGC store (not the PACKAPUNCH PRO one).
    Does anyone have this problem?
    How can I fix this problem because sometimes it disturbs especially when some levels have minimal background music.

    Thanks!
     
    Last edited: Feb 11, 2018
  2. Kaeser

    Kaeser Rising Member

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    Normally I'd say it's the cable, but you seem to have decent ones. Does is buzz more on plain white screens? Have you tested it on another CRT?
     
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  3. helakustorm

    helakustorm Robust Member

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    What I can confirm is that when the volume is at 30-35% this buzzing is not very perceptive (it exist but does not disturb the ear).
    But when the volume goes up after 35% the buzzing starts to appear and intensify when the volume is max (tested on all three consoles).
    I have an RGB cable for PlayStation 2 with all the grounds wired up created by me ( and I have compared with the RGC one and I can confirm that at the 25-30% volume the buzzing is more perceptive with my cable than with the RCG one (from what I've understand it is better shielded).
    Unfortunately I don't have an RGB double shielded cable to see if this solve the problem (I don't think will solve it); about the official GameCube RGB cables in general I don't think that they are double shielded (maybe I'm wrong).
    What is interesting, if I mute my TV the buzzing stop even if the volume was maxed out.

    Thanks!
     
    Last edited: Feb 12, 2018
  4. Sp33dFr34k

    Sp33dFr34k Spirited Member

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    FWIW, I've had the exact same thing happening with my Super Nintendo, with ALL cables I used. I then recently upgraded to a RGC Packapunch Pro cable and from that point on I have zero issues, the audio buzz is completely gone. I believe this is due to the fact that their wires inside the cable are individually shielded. Maybe this cable will help you with your problem as well.
     
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  5. helakustorm

    helakustorm Robust Member

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    If someone will say that the official GameCube RGB cable is double shielded then buying RGC Packapunch Pro cable will not solve my issue...
     
  6. Sp33dFr34k

    Sp33dFr34k Spirited Member

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    I'd check it on another TV first then to rule that out.
     
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  7. helakustorm

    helakustorm Robust Member

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    That is true Sp33dFr34k but sadly I don't have two CRT to test it and I don't know someone to still have a CRT...
    I'm the only retro purist in my group of friends...
    I will wait, maybe someone will give another idea or something; in the event that no one can help me that's life :)
     
  8. Sp33dFr34k

    Sp33dFr34k Spirited Member

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    Doesn't need to be a CRT, in my case I heard it with both CRT and LCD TV. The result should be the same, audio = audio. It could just be that a CRT is a little bit more sensitive to it.
     
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  9. helakustorm

    helakustorm Robust Member

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    You are correct Sp33dFr34k
    The same, from my point of view CRT TV's are a little sensitive that's why I needed another one to test this theory.
    I've heard some rumors that due to bad/poor capacitors inside the TV can be another problem that create this humming/buzzing sound.
    Anyway, thank you!
     

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