THE SUOND FROM MY AMP RUNNING MY SUBS CUTS OFF AND ON THE LED STAYS ON.WHEN THE SOUND IS OFF I CANTAP THE AMP AND IT PLAYS AND THEN CUTS OFF AGAIN.THE WIRING IS FINE. IF IT IS A DRY SOLDER WHERE ON THE A BOARD WILL I FIND THE PROBLEM
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Re: SOUND CUTS ON AND OFF WHILE PLAYING
You may have solved your own problem. If you can tap the unit and have it work that is a sign of a loose connection. I would suggest if you have electronics background you check the circuit for a cold solder joint. Then use a soldering iron to go over the joint. Better still hear up the joint and use a desoldering device remove the old solder and then a soldering iron to apply new solder.
This should do the trick it a cold solder joint is indeed your problem.
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when you car is running, it charges the battery somewhat. So the voltage problem is not a problem. The red light means the amp is going into ''Protect Mode". This usually happens when something is wrong with the amp. Usually the amp is getting hot. Check all of you connectiong and check the final impedance of the subs. Make sure the amp can handle the impedance of the subs. If you need anymore help, message me.
You may have a problem with the power source feeding the amp. You need to check the voltage across the amplifier's B+ and ground terminals when the amp is playing/cutting off. If it's dropping below ~11 volts, you need to determine why it's dropping so low.
This indicates a possibility of a power supply issue, you may have to open up the unit and take voltage measurements to determine if the voltages are correct. In order to do this you will need a schematic diagram of the unit. Once you have the schematic you will be abor to tell which voltages are legitimate. I hope this helps
Ok This is a two channel High Current amp. It is stable to one ohm. If the Subs are single voice coil at two ohms the they have to be wired in Parallel that means (Red +) (Black -) are connected to the + and - of another sub and then the (RED +) (Black -) from both go to one output channel of the amp. You pair the other two in the same fashion on the other output channel. If you are getting no output (sound) at all first check if the amplifier is going into protect. (Usually indicated by a red led on the unit. If it is connect only one Sub to each output and see if the protect LED goes out. If it does then you should have sound at the subs. If not check that you have the sub output enabled on the HU some head units do not come with the sub output enabled on the HU. If every thig is enabled, with only one sub connected to each output and the protect LED is not on then your amp is probably blown and needs repair. Nice thing is that MA has a great warrenty policy.
Check and make sure the protect LED is off. If it is on you probably have the SUBS wired wrong
Your Amp is in protect. Disconnect your subs and turn it back on. IF the led goes back to green the you have a blown Sub and it will need to be replaced. If the amp stays in protect even with the subs removed the the amp is toast.