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Author Topic: MK6 Machine sound interference  (Read 3191 times)

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Offline D.gee478

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MK6 Machine sound interference
« on: September 14, 2024, 07:37:50 pm »
Hey guys, any help on why as soon as my machines is powered on after a few secconds there is always an annoying audible humming static sort of noise that is constant but sort of subtle and ear pearcing. it is an older mk5 cabinet upgraded to mk6 im pretty sure.
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Offline Heihachi_73

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Re: MK6 Machine sound interference
« Reply #1 on: September 15, 2024, 12:28:58 am »
Failing op-amp sending a high-pitched hiss through the speakers? If it's what I'm thinking of. I hate MK6s like that with a passion, techs usually just pull the speaker wires to shut it up until it can be fixed!

Older (pre-1998) MK5/MKV or Series II/MVP? Shouldn't matter but IIRC the speakers are different (e.g. MVP/MK5 Series II has two speakers, MKV doesn't), that said the ones I remember the most with that annoying whine were Xcites ironically.
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Offline D.gee478

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Re: MK6 Machine sound interference
« Reply #2 on: September 28, 2024, 08:32:05 am »
op-amp.. is that built into the board? asin like a pre-amp chip that can be replaced or a seperate piece of hardware? my cabinet has 2 speakers. i did pull the wires but now its more annoying not having sound. not sure where or how to start diagnosing
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Offline D.gee478

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Re: MK6 Machine sound interference
« Reply #3 on: February 16, 2025, 04:34:58 am »
Also it is an mk5 main board running an mk6-xp if that helps at all
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Offline D.gee478

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Re: MK6 Machine sound interference
« Reply #4 on: January 31, 2026, 07:11:11 pm »
anyone?
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