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Humming sound out of my RV’s sound system
I’m trying to track down the cause and thought you guys might be able to help me narrow it down.
The system consists of Sony PS which we use as a gaming system and DVD player. There is also a Samsung TV and a RV type head unit that plays CDs. All are connected through an inverter buried deep in the cabinet. When I’m plugged into a wall outlet, everything is powered by 120 VAC. The same through the inverter which gets 12 VDC from the RV battery. Don’t think anything is powered by 12 VDC directly but I have not yet taken the cabinet apart to confirm.
My question is, what typically causes the humming I hear through the RV speakers? Bad ground? Poor quality inverter? Crappy head unit? I’m leaning towards the inverter but unsure. What troubleshooting steps should I take other than unplug one source from the inverter one at a time?
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