Can Anyone help!!
Ive got a mosfet 2400watt, 4 channel car amp running 2 x 400watt fusion subs and 2 x 260 watt fusion 6by9's. The amp suddenly died, i was simply driving down the road and it cut out only the standard car speakers would work. Instead of the amp having a green LED light on indicating it works, a red LED comes on instead. Ive checked all the fuses all cabling and all connections and cant figure out why it isdoing this?
If any one has any suggestions on whats wrong i will very grateful.
Replies (7)
swez on 05/14/2008 04:13:20
In this case, it would be best to have the amp bench tested by a qualified Electronics Tech. They can determine what has failed and give an estimate on labor and materials to repair it after testing.
Once you know what went wrong and how much it will cost to repair it, then it's either a repair or replacement scenario.
Swez
weathmatth on 05/14/2008 04:45:35
Thats the thing i have already doen that and they fixed it, but when i hooked it up it didnt wrk so i gave it a tap on the back and it started working for about 2 hrs then went back to it was.
Ash on 05/14/2008 08:47:39
The amp wasn't mounted on the subwoofer box was it? The fact that you were able to get it to play from tapping on it sounds like vibration damage. Something that is possible when you mount an amp onto the sub enclosure. Could have loosened a few solder joints.
Don't ask me how I know..........
weathmatth on 05/14/2008 09:28:35
weathmatth on 05/14/2008 09:37:28
No the amp is mounted on the back of the back seats, with rubber spacers to help the thing cool down. it so much a tap it more light a punch lol cause i got annoyed with it, but like i said it worked after i did it for 2 hrs. then cut out again.
Ash on 05/14/2008 12:40:30
I'm with Swez on this one, it needs to be bench tested. It's possible that something is loose or it could be several of others. If you don't think the shop did a good job the first time, find someone else dependable to diagnose it or send it back to the manufacturer to be refurbished.
swez on 05/15/2008 19:14:23
If a good slap to the amp makes it work for a time, that tells me there are a few key circuit paths that are not properly secured.
This could mean a loose power supply torroid core inductor or caps, fractured or poor solder joints or damaged output signal or power input lines. This takes a careful eye and lots of electrical probing to uncover.
In most cases, the Mfg'er knows about these issues and will just swap the bad board and fix it manually later. That's what a good refurb means.
Swez
Ive got a mosfet 2400watt, 4 channel car amp running 2 x 400watt fusion subs and 2 x 260 watt fusion 6by9's. The amp suddenly died, i was simply driving down the road and it cut out only the standard car speakers would work. Instead of the amp having a green LED light on indicating it works, a red LED comes on instead. Ive checked all the fuses all cabling and all connections and cant figure out why it isdoing this?
If any one has any suggestions on whats wrong i will very grateful.
Replies (7)
swez on 05/14/2008 04:13:20
In this case, it would be best to have the amp bench tested by a qualified Electronics Tech. They can determine what has failed and give an estimate on labor and materials to repair it after testing.
Once you know what went wrong and how much it will cost to repair it, then it's either a repair or replacement scenario.
Swez
weathmatth on 05/14/2008 04:45:35
Thats the thing i have already doen that and they fixed it, but when i hooked it up it didnt wrk so i gave it a tap on the back and it started working for about 2 hrs then went back to it was.
Ash on 05/14/2008 08:47:39
The amp wasn't mounted on the subwoofer box was it? The fact that you were able to get it to play from tapping on it sounds like vibration damage. Something that is possible when you mount an amp onto the sub enclosure. Could have loosened a few solder joints.
Don't ask me how I know..........
weathmatth on 05/14/2008 09:28:35
weathmatth on 05/14/2008 09:37:28
No the amp is mounted on the back of the back seats, with rubber spacers to help the thing cool down. it so much a tap it more light a punch lol cause i got annoyed with it, but like i said it worked after i did it for 2 hrs. then cut out again.
Ash on 05/14/2008 12:40:30
I'm with Swez on this one, it needs to be bench tested. It's possible that something is loose or it could be several of others. If you don't think the shop did a good job the first time, find someone else dependable to diagnose it or send it back to the manufacturer to be refurbished.
swez on 05/15/2008 19:14:23
If a good slap to the amp makes it work for a time, that tells me there are a few key circuit paths that are not properly secured.
This could mean a loose power supply torroid core inductor or caps, fractured or poor solder joints or damaged output signal or power input lines. This takes a careful eye and lots of electrical probing to uncover.
In most cases, the Mfg'er knows about these issues and will just swap the bad board and fix it manually later. That's what a good refurb means.
Swez
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