abnormal circuit

[joker7 10+ year member]

I have a Alpine MRV-F450 5 channels + Alpine CDA-9807 + Infinity Speakers and sub

here is the problem...The music only play for around 30seconds then it would stops for around 15seconds or so and it keeps going like that...i notice that the LED indicator would turn red whenever the music is not on and it would turn back to blue when the music is on...wat does that mean??? //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif can somebody please help me identify the problem? //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif

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[bonesninja 5,000+ posts]

sounds like its going into protect mode. check to make sure the wiring configurations are correct on your speakers.

 

[JimJ 5,000+ posts]

Your amp is going into protection...

What impedance is your sub?

 

[joker7 10+ year member]

Your amp is going into protection...
What impedance is your sub?

i have the infinity reference speakers + sub...i think the impedance is 4ohms...fyi the system has been running fine for a couple of months until now...

 

[bonesninja 5,000+ posts]

you might have to go through and check ALL the connections at the amp AND at the speakers and deck as well.pay close attention to your grounds. also check the power wiring as well.

 

[joker7 10+ year member]

you might have to go through and check ALL the connections at the amp AND at the speakers and deck as well.pay close attention to your grounds. also check the power wiring as well.

thanks! this is gonna take forever again //content.invisioncic.com/y282845/emoticons/mad.gif.c18f003ab0ef8a0d9c27ca78d77a6392.gif

 

[joker7 10+ year member]

you might have to go through and check ALL the connections at the amp AND at the speakers and deck as well.pay close attention to your grounds. also check the power wiring as well.

ok...i'm asking this question out of curiosity...why should i pay close attention to grounds instead of any other wire? //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

 

[bonesninja 5,000+ posts]

because grounds are often overlooked as not being as important as power wires----in fact they are at least as important as power wires. ground wires should be attached to BARE metal only and be at LEAST as big as the power wire to your amp. also if you spliced any wires together make sure the splice is completely isolated from touching metal or other wires.

 

[johnecon2001 5,000+ posts]

because a loose ground can cause the amp to go into protect. and power wire comes loose a lot less than the grounds do.

 

[XtrmAudioCncpts 10+ year member]

because grounds are often overlooked as not being as important as power wires----in fact they are at least as important as power wires. ground wires should be attached to BARE metal only and be at LEAST as big as the power wire to your amp. also if you spliced any wires together make sure the splice is completely isolated from touching metal or other wires.

//content.invisioncic.com/y282845/emoticons/iagree.gif.15d6c075ee8d3913ba26866d06993068.gif

 

[joker7 10+ year member]

cool...very important to know...