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Author Topic: Feedback  (Read 414 times)

Scalloper1

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Feedback
« on: July 16, 2018, 08:05:30 PM »
Iím getting electrical feedback through my overhead surround sound speakers. It seems to be coming from the inverter or charging system whether we are hooked up at campground or on the highway. I have noticed that it has stopped on a few occasions while traveling and hitting a significant bump on the highway. Loose connection or something internal in inverter. Thx any help would be appreciated.
Cecil Jones, 2005 HR Navigator. Silverado 1500 High Country 4 Down

darsben

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Re: Feedback
« Reply #1 on: July 16, 2018, 08:12:48 PM »
Are you running your genny on the road?
If yes suspect the auto transfer switch.
1990 Fleetwood Southwind on P30 chassis located in
Central NY in summer and beautiful Casa Grande AZ in winter

John From Detroit

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Re: Feedback
« Reply #2 on: July 17, 2018, 07:45:01 AM »
Radio or CD/Other.

Radio.. If you have an inverter. especially a MSW inverter. TURN OFF.

IF you are running the audio systems on the inverter. Try alternative source and turn inverter off.

Is it feed back. Whine or hum. all 3 have different causes. Feedback is very rare in audio playback systems. Common where microphones exist but rare without microphone.
Nothing adds excitement like something that is none of your business
My Home is where I park it.

Scalloper1

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Re: Feedback
« Reply #3 on: July 25, 2018, 04:30:29 PM »
Parking Air brake switch is somehow causing feedback, when in Park position no feedback, when brake is off I have feedback. Also when I turn on headlights feedback quits. Iím thinking that the daytime running headlights are a possible cause. When I turn on headlights the daytime running head lights are off, bad ground or faulty daytime running light module. Any ideas? Thx Cecil
Cecil Jones, 2005 HR Navigator. Silverado 1500 High Country 4 Down

darsben

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Re: Feedback
« Reply #4 on: July 25, 2018, 05:57:28 PM »
Parking Air brake switch is somehow causing feedback, when in Park position no feedback, when brake is off I have feedback. Also when I turn on headlights feedback quits. Iím thinking that the daytime running headlights are a possible cause. When I turn on headlights the daytime running head lights are off, bad ground or faulty daytime running light module. Any ideas? Thx Cecil
LED lights sometimes have issues with RF interference are the bulbs LED? IF so can you remove them temporarily and see if te problem disappears.
Parking brake when activated sometimes turns off running lights so I think your theory about running light may be correct.
« Last Edit: July 25, 2018, 05:59:58 PM by darsben »
1990 Fleetwood Southwind on P30 chassis located in
Central NY in summer and beautiful Casa Grande AZ in winter

Lou Schneider

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Re: Feedback
« Reply #5 on: July 25, 2018, 06:58:47 PM »
Iím getting electrical feedback through my overhead surround sound speakers. It seems to be coming from the inverter or charging system whether we are hooked up at campground or on the highway. I have noticed that it has stopped on a few occasions while traveling and hitting a significant bump on the highway. Loose connection or something internal in inverter. Thx any help would be appreciated.

Most of the time the problem comes from slight voltage differences between the negative 12 volt line and the neutral of the AC power.  When everything is clean and tight, there's no problem.  But let any connection get even a little loose or dirty and you start hearing all the noise.

If your surround sound uses a pair of RCA jacks or an 1/8" plug to get audio into the surround amp, the easiest fix is to put a ground loop isolation transformer in line with the audio connections to break the ground loop.

Ground Loop Isolator

John From Detroit

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Re: Feedback
« Reply #6 on: July 26, 2018, 10:11:16 AM »
Parking brake may also turn off DRL's so you are right it could be the DRL module.

Drl's may feed reduced voltage to the headlights.. I've heard all sorts of Dooms Sayers at feeding half voltage to headlights but on my first towed I did just that using a SEE-ME DRL system by ANL enterprises.  alas I can not find the company any more.
Nothing adds excitement like something that is none of your business
My Home is where I park it.