HELP! Speaker hum ... ground checked.
Thread Starter
Joined: Jun 2002
Posts: 48
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From: Vancouver, BC
HELP! Speaker hum ... ground checked.
There's static noise coming from my speakers whenever my deck is turned on. Setup is as follows:
Deck is an Eclipse 5341.
Front and rear speakers are powered by HU.
Deck is mounted in a DIN cage in a 1990 CRX.
Back of the deck is secured by an L-shaped metal bracket with metal bolts connecting the back of the deck and the chassis.
Originally grounded using harness.
Tried grounding directly to metal car chassis with paint removed -> still static.
Deck is an Eclipse 5341.
Front and rear speakers are powered by HU.
Deck is mounted in a DIN cage in a 1990 CRX.
Back of the deck is secured by an L-shaped metal bracket with metal bolts connecting the back of the deck and the chassis.
Originally grounded using harness.
Tried grounding directly to metal car chassis with paint removed -> still static.
Old Fart
Joined: May 2004
Posts: 26,173
Likes: 18
From: kelowna, bc, canada
Re: HELP! Speaker hum ... ground checked. (Veleno)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Veleno »</TD></TR><TR><TD CLASS="quote">There's static noise coming from my speakers whenever my deck is turned on. Setup is as follows:
Deck is an Eclipse 5341.
Front and rear speakers are powered by HU.
Deck is mounted in a DIN cage in a 1990 CRX.
Back of the deck is secured by an L-shaped metal bracket with metal bolts connecting the back of the deck and the chassis.
Originally grounded using harness.
Tried grounding directly to metal car chassis with paint removed -> still static.</TD></TR></TABLE>Is "static" there with or without motor running? And as stated above,you don't have an amp.? also is noise on radio and CD/Tape? need all this info to help.
94
Deck is an Eclipse 5341.
Front and rear speakers are powered by HU.
Deck is mounted in a DIN cage in a 1990 CRX.
Back of the deck is secured by an L-shaped metal bracket with metal bolts connecting the back of the deck and the chassis.
Originally grounded using harness.
Tried grounding directly to metal car chassis with paint removed -> still static.</TD></TR></TABLE>Is "static" there with or without motor running? And as stated above,you don't have an amp.? also is noise on radio and CD/Tape? need all this info to help.
94
Thread Starter
Joined: Jun 2002
Posts: 48
Likes: 0
From: Vancouver, BC
Re: HELP! Speaker hum ... ground checked. (fcm)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm »</TD></TR><TR><TD CLASS="quote">Is "static" there with or without motor running? And as stated above,you don't have an amp.? also is noise on radio and CD/Tape? need all this info to help. 94</TD></TR></TABLE>
It's a very quiet static that's there whether or not the motor is running. It does seem to get louder with engine RPM though (louder, not pitch). Noise is there with CD or radio. NO AMP.
Here's a couple other notes:
1. Does not matter if antenna is connected.
2. Does not matter if HU is in or out of the dash.
3. Tried grounding HU chassis directly, still no difference.
At first I was thinking it was a common ground problem ... what else could it be?
Modified by Veleno at 3:12 PM 8/30/2004
Modified by Veleno at 3:14 PM 8/30/2004
94</TD></TR></TABLE>It's a very quiet static that's there whether or not the motor is running. It does seem to get louder with engine RPM though (louder, not pitch). Noise is there with CD or radio. NO AMP.
Here's a couple other notes:
1. Does not matter if antenna is connected.
2. Does not matter if HU is in or out of the dash.
3. Tried grounding HU chassis directly, still no difference.
At first I was thinking it was a common ground problem ... what else could it be?
Modified by Veleno at 3:12 PM 8/30/2004
Modified by Veleno at 3:14 PM 8/30/2004
Old Fart
Joined: May 2004
Posts: 26,173
Likes: 18
From: kelowna, bc, canada
Re: HELP! Speaker hum ... ground checked. (Veleno)
I would say you have something wrong with the HU itself, maybe a cap. in the power supply is bad, as "static" is there w/o motor running but does get louder when motor is running. if you can, plug in another HU and see if "static" is still there. 
94
94
Thread Starter
Joined: Jun 2002
Posts: 48
Likes: 0
From: Vancouver, BC
Re: HELP! Speaker hum ... ground checked. (fcm)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm »</TD></TR><TR><TD CLASS="quote">I would say you have something wrong with the HU itself, maybe a cap. in the power supply is bad, as "static" is there w/o motor running but does get louder when motor is running. if you can, plug in another HU and see if "static" is still there. 94</TD></TR></TABLE>
You might be right, I plugged in a stock Acura unit from a 2000 Integra GSR and there was absoloutely no static.
Now my question is ... if it's a capacitor in the power supply, how much might it be to it fixed? And if I were to use an amp and the RCA outputs, would the static still be there?
94</TD></TR></TABLE>You might be right, I plugged in a stock Acura unit from a 2000 Integra GSR and there was absoloutely no static.
Now my question is ... if it's a capacitor in the power supply, how much might it be to it fixed? And if I were to use an amp and the RCA outputs, would the static still be there?
Old Fart
Joined: May 2004
Posts: 26,173
Likes: 18
From: kelowna, bc, canada
Re: HELP! Speaker hum ... ground checked. (Veleno)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Veleno »</TD></TR><TR><TD CLASS="quote">
You might be right, I plugged in a stock Acura unit from a 2000 Integra GSR and there was absoloutely no static.
Now my question is ... if it's a capacitor in the power supply, how much might it be to it fixed? And if I were to use an amp and the RCA outputs, would the static still be there?</TD></TR></TABLE> The cap in the power supply may or may not be the problem,[ I mention it only because I have run into that problem] and if you know your wireing is good, and plugging in the other HU we know the speakers are ok, there has to be a problem in the unit, as for cost of fixing, that will depend on what is found to be wrong, in Canada, any repairs to car CD HU will be no less then $50 and can run much higher, so best bet is to get an est. or give a go ahead max, [ what the most you are willing to pay to fix it] also how old is the HU, is it worth fixing?
94
You might be right, I plugged in a stock Acura unit from a 2000 Integra GSR and there was absoloutely no static.
Now my question is ... if it's a capacitor in the power supply, how much might it be to it fixed? And if I were to use an amp and the RCA outputs, would the static still be there?</TD></TR></TABLE> The cap in the power supply may or may not be the problem,[ I mention it only because I have run into that problem] and if you know your wireing is good, and plugging in the other HU we know the speakers are ok, there has to be a problem in the unit, as for cost of fixing, that will depend on what is found to be wrong, in Canada, any repairs to car CD HU will be no less then $50 and can run much higher, so best bet is to get an est. or give a go ahead max, [ what the most you are willing to pay to fix it] also how old is the HU, is it worth fixing?
94
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