It sounds like the main power has a failing component on it check for bulging capacitors and anything that is a brownish or even black color that should not be.
As you say fuses ok ,wires ok then it could Could be the component died (bad transistor, diode, faulty soldering, etc) this problem has to be checked by a multimeter and continuity on the main board circuit of the radio internally.and the faulty should be replaced then only it will give sound.
First, you should check the wiring harness for separation of audio jacks and speaker wires. next, check the amp to see if it has a red light on it. this will mean the amp is in protect mode and you will need to check the internals with a multi meter to see if the circuits are good. check the amp to see if the fuse in the amp is good as well. do complete wire test form amp all he way to speakers and stereo. if all the wires check out, its the main stereo receiver. it will need to be repaired. the audio board has flailed if so.oh, check the fuse box under your dash as well.
It is possible that you may not have an map. this could be a main stereo issue. most cars of this nature will have the amp integrated inside the stereo in the dash. if this is the case, your problem may be the stereo itself.
It is possible that you may not have an map. this could be a main stereo issue. most cars of this nature will have the amp integrated inside the stereo in the dash. if this is the case, your problem may be the stereo itself.
In order to help u need to tell us what u have, premium sound etc, is this factory, if so what kind of car or truck, if aftermarket do you have a separate amp and other details. This sounds like the amp amy have failed.
yes there is most likely a seperate amp, if I knew what kind of car (year and model)I could tell u where it is.yes there is most likely a seperate amp, if I knew what kind of car (year and model)I could tell u where it is.
all u can do on the amp to test is pull the connector off and check for 12 volts and a good ground, use a 12 volt test light, u can buy one form any parts store for around $6 US, but at this point I think the problem is the control head, that is the radio in your case.all u can do on the amp to test is pull the connector off and check for 12 volts and a good ground, use a 12 volt test light, u can buy one form any parts store for around $6 US, but at this point I think the problem is the control head, that is the radio in your case.
There are basically three sections – the power section, tuner and the amplifier. The power section usually consisted of nothing more than a simple filter. The amplifier was only capable of producing a small amount of power, usually 3 to 5 watts. Component technology of the time and other design considerations made higher outputs impractical. The output of the amplifier is referenced to ground.
click the link for more help http://www.mgexperience.net/article/all/car-radio-connections.pdf
The location of the external amplifier (if installed) would depend if it were a factory installed or an aftermarket installation. The factory installed would largely depend on the make and model. Some common locations are under the seat, behind the glove compartment, in the trunk, a recessed well on the flooring or even under the radio/head unit.
If the radio works, all features and functions appear normal, then yes it would be the amplifier, either external as above described or even internal.
Pls post back what the vehicle the radio is installed in and if it is a factory or aftermarket install.
Answers & Comments
It sounds like the main power has a failing component on it check for bulging capacitors and anything that is a brownish or even black color that should not be.
As you say fuses ok ,wires ok then it could Could be the component died (bad transistor, diode, faulty soldering, etc) this problem has to be checked by a multimeter and continuity on the main board circuit of the radio internally.and the faulty should be replaced then only it will give sound.
First, you should check the wiring harness for separation of audio jacks and speaker wires. next, check the amp to see if it has a red light on it. this will mean the amp is in protect mode and you will need to check the internals with a multi meter to see if the circuits are good. check the amp to see if the fuse in the amp is good as well. do complete wire test form amp all he way to speakers and stereo. if all the wires check out, its the main stereo receiver. it will need to be repaired. the audio board has flailed if so.oh, check the fuse box under your dash as well.
Most amps are hidden inside the trunk or under the seats.
It is possible that you may not have an map. this could be a main stereo issue. most cars of this nature will have the amp integrated inside the stereo in the dash. if this is the case, your problem may be the stereo itself.
Http://www.electronixwarehouse.com/education/amplifiers/installamp.htm
click the link and check out the amplifier system in your car.
In order to help u need to tell us what u have, premium sound etc, is this factory, if so what kind of car or truck, if aftermarket do you have a separate amp and other details. This sounds like the amp amy have failed.
yes there is most likely a seperate amp, if I knew what kind of car (year and model)I could tell u where it is.
all u can do on the amp to test is pull the connector off and check for 12 volts and a good ground, use a 12 volt test light, u can buy one form any parts store for around $6 US, but at this point I think the problem is the control head, that is the radio in your case.
There are basically three sections – the power section, tuner and the amplifier. The power section usually consisted of nothing more than a simple filter. The amplifier was only capable of producing a small amount of power, usually 3 to 5 watts. Component technology of the time and other design considerations made higher outputs impractical. The output of the amplifier is referenced to ground.
click the link for more help
http://www.mgexperience.net/article/all/car-radio-connections.pdf
Hi and welcome to FixYa,
The location of the external amplifier (if installed) would depend if it were a factory installed or an aftermarket installation. The factory installed would largely depend on the make and model. Some common locations are under the seat, behind the glove compartment, in the trunk, a recessed well on the flooring or even under the radio/head unit.
If the radio works, all features and functions appear normal, then yes it would be the amplifier, either external as above described or even internal.
Pls post back what the vehicle the radio is installed in and if it is a factory or aftermarket install.
Good luck and thank you for using FixYa.
If it has external speakers, check speakers wiring.
Please give more details.