Why the sound on the radio in the car disappeared (floats) and the reasons why the speaker does not work


For many drivers, the radio in the car is an integral part of it. Because it allows you to enjoy pleasant music or just your favorite song during a trip. With such support, even the longest journey will not seem boring.

As soon as problems arise with the operation of the car radio, it causes a lot of inconvenience. The driver tries to eliminate it and return the device to its previous functionality. One of the most common breakdowns is lack of sound. There are many reasons for this. It is very important to install it correctly. This is the only way to count on high-quality operation of the device after repairing the breakdown. Sometimes you can do this yourself, but it is better to consult with professionals. They will help you solve this problem and tell you what is best to do in the current situation.

Main causes of malfunctions

If there is no sound from the speakers, then the problem is not always a malfunction of the radio. The main problems are the following:

  • Speaker failure. The main purpose of the device is to output sound. It is not always possible to carry out repairs yourself; often you have to completely replace the device. It is recommended to trust repairs to specialists.
  • Problems with the amplifier. Often the car radio is connected to the speakers via an amplifier. Its purpose is to improve the quality of the outgoing signal. If the amplifier is not working properly, there will be no sound output from the speakers.
  • Weakened contacts. If the radio turns on, but the sound of the car floats, there is a possibility of deterioration in the quality of the connection. Even the loosening of one contact can cause a malfunction of the entire system.
  • The power circuit has closed. To power the radio, a power source is required; the lack of contact is caused by mechanical stress or corrosion due to high humidity.
  • Inconsistency between the power of the used speaker system and the installed radio. Before you independently improve the acoustics in your car, you should consider the capabilities of the radio. If you choose the wrong equipment, it can overheat and fail. The amplifier is rarely repaired; most often it is replaced with a more suitable device.

The sound in the radio also disappears due to a malfunction of the device itself. It is not recommended to purchase fakes, as the Chinese model has poor build quality

We exclude the head unit and amplifier.

If the radio starts up and functions normally, but there is no sound coming from the speakers at all, you can come to the conclusion that the problem lies with them. However, the fact that the radio turns on does not mean that it is working properly. And before you start carrying out global repair work, do the following:

  1. Make sure that the anti-theft mode is not activated on the head unit, which requires a car radio activation code.
  2. Check your volume and audio settings.
  3. Check the various connection sockets (radio, CD player, AUX inputs, etc.).
  4. Check all onboard fuses.
  5. Check if there are any loose wires anywhere.

If you have not found any visible problems with the head unit, now you need to determine if something is wrong with the external amplifier.

In car audio systems that use external amplifiers (both original factory versions and those you can buy in stores), the amplifier is the most common cause of this type of problem, since the sound must pass through the amplifier to the speakers. When checking your amplifier, you should do the following:

  1. Make sure the amplifier is turned on.
  2. Determine if your device has security mode enabled.
  3. Check for unconnected or loose speaker input and output wires.
  4. Check built-in and on-board fuses.

Although there are many problems that you can diagnose and fix yourself, you may encounter a situation where everything seems to be fine with the amplifier, although in fact it is not. In this case, you need to try to ignore the amplifier and check whether the head unit and speakers are working normally. In this case, you can use the internal amplifier in the radio, or purchase a new amplifier on the secondary market.

Checking the speaker wiring.

When you checked the settings on your head unit, you may have discovered that they were configured for a speaker or speakers that were not working, so you may be able to get sound by setting the settings to a working speaker. In this case, the problem should be looked for in the wiring of the car stereo system or faulty speakers.

Since speaker wiring is often routed behind panels and moldings, under seats and under the carpet, it can be quite difficult to inspect. Depending on your situation, it may be easier to test the wire from one end to the other with the amplifier or stereo connected on one side and each speaker on the other. And if the wire is not intact, it means that it is broken in some place. On the other hand, if the wire breaks, there may be a short circuit.

If the speakers are installed in car doors, the most common place for the problem to occur is where the speaker wiring runs between the door and the door frame. Although wiring harnesses are usually protected by a hard rubber sheath, over time, due to the constant opening and closing of doors, they do become subject to wear and tear. So, when inspecting the wiring, check to see if there are any broken wires, as this may affect the operation of the entire system.

Checking car speakers.

Another way to check the speakers of your car and eliminate the possibility of problems with the wiring is to connect new wires, thereby making temporary wiring. And in this case, to gain access to the speakers, you will have to remove door panels, trim and other decorative elements, but these are temporary wires, so there is no need to rip out the old ones and fix new ones just yet. If the speakers function normally with the new wires, then the real solution to the problem is a complete replacement of the wiring.

You can also test your car speakers by disconnecting the wiring from the head unit and amplifier, and connecting the negative (-) and positive (+) wires to each speaker, respectively, to the positive and negative terminals of a 1.5-volt battery. If the integrity of the drives is not compromised and the speaker is not completely damaged, you should hear a quiet clicking sound when the wires touch the battery terminals. However, the fact that you hear a clicking sound from the speaker when connected to a 1.5 Volt battery does not always mean that the speaker is in normal operating condition.

And if in the end, you were unable to identify and solve the problem with non-working speakers, just buy a new set and replace the existing units, because by buying high-quality speakers, you can make a high-quality replacement of outdated factory models. Or maybe this will even be a great reason to upgrade the entire stereo system as a whole.

No sound from speakers

There is often a situation where only one side plays. A common question among car enthusiasts is what to do in such a case. Most often, the problem is a faulty cable, which just needs to be cleaned accordingly. The following substances can be used for cleaning:

  • Ethanol. It can be found in pharmacies, and the cost is relatively low.
  • Isopropyl alcohol. This substance is much more expensive, is sold in large bottles, and cannot be used in the future to achieve other purposes.
  • Nail polish remover. It is able to dissolve the smallest particles and also remove dust from the surface.

School eraser is used to clean large trains. Cleaning instructions are as follows:

  1. Use a Phillips screwdriver to remove the right trim in the immediate vicinity of the glove compartment.
  2. The screws that secure the torpedo trim are unscrewed.
  3. The front part of the radio is pulled out. It is often held on with clips.
  4. All connectors located at the rear are disconnected.
  5. The radio is disassembled, after which the cables are cleaned using a suitable substance.

After completing the above work, you can begin assembly in reverse order.

Turns off during operation

It happens that the radio turns off during operation. This problem can be caused by a poor or unreliable connection in the power circuit, which occasionally becomes loose when driving fast on rough roads, resulting in an unexpected shutdown. To fix the problem, you need to connect the power cables of the car radio more securely. Connecting the negative wire of the car radio to the car body is carried out as follows:

  1. Find the stud closest to the radio
  2. Clean it from dirt and paint.
  3. Take a piece of wire with a terminal that has a hole of a suitable diameter.
  4. Connect one end to the negative terminal of the radio
  5. Place the terminal onto the stud and screw it securely.

Unreliable mounting of the car radio on the dashboard also leads to malfunctions, including shutdown. Another reason for sudden shutdown is the protective timer built into the radio. It is used to avoid draining the car's battery if the device is accidentally left on without pressing any buttons for a specified period of time. To deal with this problem, you just need to turn on the radio again.

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Sound settings

If the sound does not work when using Prology 2 din, you can make adjustments. Instructions for performing such work are as follows:

  1. Press the volume control for a few seconds and release.
  2. If the sound disappears on one side, the stereo balance parameter is adjusted. To do this, press the volume control until the word “BAL” and the number appear. The knob is turned until zero is displayed.

This type of sound setting can solve most problems.

Pioneer

For the Pioneer radio, the sound settings are done slightly differently. The instructions look like this:

  1. Hold down the “Audio” key until the “Fad” mode appears.
  2. After this, the keys set zero.
  3. It is possible to reset the settings to factory settings, for which the “Reset” key is held down for several seconds.

The information above describes how to set up your radio to improve sound quality.

Doesn't turn on

To repair the radio, you need to find out the cause of the malfunction.

The device must be inspected in the following order:

  • check the supply voltage, it should be within 12-14 V;
  • make sure that the throttle and fuse L951 are working properly;
  • make sure that the diodes performing the protective function comply with groups D951 and D952;
  • measure the voltage of the Q952 stabilizer, which should be 5 V;
  • inspect sensors Q601 and Q602: if they do not work, the radio cannot play music;
  • make sure that the supply voltage at output 68 of MKIC601 is 5 V;
  • check if there is a switch on transistor Q609;
  • see if 2 quartz oscillators MK and KK work well.

If you do not find a problem, check the pulse contained in the digital bus, which is located in the space between the removable panel and the MK generator. If there is no power, the microcontroller IC601 or IC901 must be replaced.

Why is there no sound on the radio?

If the radio is working but there is no sound, then the reasons are zero volume level or problems with the amplifier chip. In the first case, a malfunction of the general or sound settings of the car radio could occur.

If a short circuit occurs in the speakers or the wires going to them, the sound of unaffected channels becomes weaker and more distorted.

When the car audio system is turned on at high volume in such a situation, the amplifier chip quickly burns out and the sound disappears. The reason why the sound in the car floats when the car radio is working is not always related to the settings or electrics. Interruptions when listening to music are often associated with defective media: flash drives, CDs and cassettes.

Spontaneous shutdown

Reading the forums showed that this is a popular problem. For example, many people turn off the radio in their car when listening to music at a volume close to maximum.

Here, car enthusiasts with experience suggest that these are problems with the connection and the battery. If the battery is not charged to 100, then you just need to connect the radio directly from the battery through the fuse. And then everything will be very good.

So, sometimes when driving on our roads the device may also turn off. These are definitely contacts. Motorists also write that the radio in the car turns off every half hour when the engine is not running. And the answer here is simple. This is not a problem, but an advantage. And this is normal operation of absolutely all devices to save battery.

This is not all that can be. However, here are the main problems that people complain about on car forums. Perhaps this article will be of help to someone and help solve problems with music.

What to do

Many malfunctions due to which the sound in the car radio is lost can be eliminated independently, without resorting to the services of a service center. For example, checking and correcting the sound parameters of Pioneer radio tape recorders, as well as other brands, is carried out in accordance with the instructions for the device.

How to set up a radio

To adjust the sound, press and release the volume control. If the audio is lost on one side, you need to correctly adjust the stereo balance. To do this, press the car radio volume control until the display shows “BAL” and a number. By turning the knob, the stereo balance is set to zero, in the center. The volume of the left and right sides of the car audio system will be the same.

To configure the parameters of the Pioneer audio radio, press the “Audio” button to select the “Fad” function. After this, the “left” and “right” buttons set the balance between the left and right sides, and the “up” and “down” buttons set the balance between the front and rear channels of the car audio. You can configure the radio again by performing a factory reset. It is necessary to press and hold the “Reset” button, which is located on the front panel or under it, with a sharp object for several seconds. This procedure is carried out on a machine with the battery installed and connected.

Amplifier replacement

If the speakers are working properly, but there is no sound from the speakers, then the problem lies in the failure of the amplifier chip. In this case, you must have skills in working with a soldering iron and knowledge of radio electronics. Since all parts inside the car radio are tightly installed, care should be taken to avoid the risk of accidental damage.

First, the board is removed from the metal case and degreased on the reverse side. Then the faulty microcircuit is soldered off. After this, the seat for the new amplifier chip is prepared by thoroughly cleaning it from old solder. If necessary, the leads of the part are bent with tweezers and a ruler. Soldering is carried out with extreme caution. Adjacent parts can be protected with foil. After installing the board in the chassis, the speakers are connected to the radio, power is supplied and operation is checked.

Stripping the loop

This procedure can be performed on radio tape recorders in which the nodes are connected to each other by cables. You need to prepare alcohol or acetone, a cotton swab and an eraser. Then the radio is disassembled and the latch securing the connecting cable is loosened. To avoid mistakes during installation, you should mark the location of the cable relative to the socket.

A careful inspection will determine the presence of dirt and damage. First, you should go over the contacts of the cable with an eraser. Then a fine cleaning is performed using a cotton swab dipped in alcohol or acetone. In both cases, care must be taken not to damage the delicate contacts. The reverse connection of the cable is carried out according to the previously made mark.

If only one side of the speakers works

The cause of this problem is an incorrect connection of the speakers themselves or a violation of the stereo balance. Another reason for the lack of sound in the speakers of one side is poor contact in the car radio cable, which often occurs due to oxidation or constant shaking of the device.

Thus, you can determine why the sound on the radio does not work on your own. Making the necessary settings and troubleshooting will also not cause significant difficulties.

We exclude the head unit and amplifier.

If the radio starts up and functions normally, but there is no sound coming from the speakers at all, you can come to the conclusion that the problem lies with them. However, the fact that the radio turns on does not mean that it is working properly. And before you start carrying out global repair work, do the following:

  1. Make sure that the anti-theft mode is not activated on the head unit, which requires a car radio activation code.
  2. Check your volume and audio settings.
  3. Check the various connection sockets (radio, CD player, AUX inputs, etc.).
  4. Check all onboard fuses.
  5. Check if there are any loose wires anywhere.

If you have not found any visible problems with the head unit, now you need to determine if something is wrong with the external amplifier.

In car audio systems that use external amplifiers (both original factory versions and those you can buy in stores), the amplifier is the most common cause of this type of problem, since the sound must pass through the amplifier to the speakers. When checking your amplifier, you should do the following:

  1. Make sure the amplifier is turned on.
  2. Determine if your device has security mode enabled.
  3. Check for unconnected or loose speaker input and output wires.
  4. Check built-in and on-board fuses.

Although there are many problems that you can diagnose and fix yourself, you may encounter a situation where everything seems to be fine with the amplifier, although in fact it is not. In this case, you need to try to ignore the amplifier and check whether the head unit and speakers are working normally. In this case, you can use the internal amplifier in the radio, or purchase a new amplifier on the secondary market.

Checking the speaker wiring.

When you checked the settings on your head unit, you may have discovered that they were configured for a speaker or speakers that were not working, so you may be able to get sound by setting the settings to a working speaker. In this case, the problem should be looked for in the wiring of the car stereo system or faulty speakers.

Since speaker wiring is often routed behind panels and moldings, under seats and under the carpet, it can be quite difficult to inspect. Depending on your situation, it may be easier to test the wire from one end to the other with the amplifier or stereo connected on one side and each speaker on the other. And if the wire is not intact, it means that it is broken in some place. On the other hand, if the wire breaks, there may be a short circuit.

If the speakers are installed in car doors, the most common place for the problem to occur is where the speaker wiring runs between the door and the door frame. Although wiring harnesses are usually protected by a hard rubber sheath, over time, due to the constant opening and closing of doors, they do become subject to wear and tear. So, when inspecting the wiring, check to see if there are any broken wires, as this may affect the operation of the entire system.

Checking car speakers.

Another way to check the speakers of your car and eliminate the possibility of problems with the wiring is to connect new wires, thereby making temporary wiring. And in this case, to gain access to the speakers, you will have to remove door panels, trim and other decorative elements, but these are temporary wires, so there is no need to rip out the old ones and fix new ones just yet. If the speakers function normally with the new wires, then the real solution to the problem is a complete replacement of the wiring.

You can also test your car speakers by disconnecting the wiring from the head unit and amplifier, and connecting the negative (-) and positive (+) wires to each speaker, respectively, to the positive and negative terminals of a 1.5-volt battery. If the integrity of the drives is not compromised and the speaker is not completely damaged, you should hear a quiet clicking sound when the wires touch the battery terminals. However, the fact that you hear a clicking sound from the speaker when connected to a 1.5 Volt battery does not always mean that the speaker is in normal operating condition.

And if in the end, you were unable to identify and solve the problem with non-working speakers, just buy a new set and replace the existing units, because by buying high-quality speakers, you can make a high-quality replacement of outdated factory models. Or maybe this will even be a great reason to upgrade the entire stereo system as a whole.

How to check the functionality of a flash drive?

The fastest way is to try to play the drive from another device. The best option is a computer whose operating system reads all possible file system formats.

You can check the serviceability of the radio by trying to insert other flash drives. If it reads, then the problem is in your drive. Why don't you buy a new one?

We have looked at all the possible reasons why music from a flash drive does not play in the radio, or the device does not read it correctly. Methodically eliminate all options until you find yours. We wish you good luck in your search!

FakeHeader

Comments 25

Use a multimeter to check the wires from the speaker to the connector on the radio to see if the wires are in good condition and when rearranging the speakers the same fault occurs, which means the output channel of the radio is faulty.

Nope))) it is not rubber, a piece of wire 1.5-2 m., As an extension))).

All. I understand) I've never done it)

It is possible that the positive wire may break, both for the vehicle's ground and for the negative wire of the column.

How to recognize this?

There should be a buzzer on the wire from connector to connector; there should not be a buzzer on the ground. And make sure the wires are not shorted. One contact of the multimeter is on one wire, another contact is on another wire, there should be no buzzer, but at the same time, I repeat, the connectors must be unfastened from both the radio and the speaker.

Nope))) it is not rubber, a piece of wire 1.5-2 m., As an extension))).

Should there be a signal or should the device show a value?

Set the multimeter to the signal (try to connect it together, the buzzer should sound), disconnect the connectors from the radio and speaker, ring the wire from connector to connector and to ground, the same with the other wire.

The problem has been resolved and closed.

Answers

gangbboy (36) 5 (3098) 2 14 36 9 years

We check the wire from the mafon to the seatpost and connect the rear seats on the mafon. I have to figure out what problem I haven't played before?!

Anonymous 7 (40499) 2 8 17 9 years

Well, there are several meters of cable going to the rear speaker. Obviously there is a cliff here.

gutta 3 (740) 8 16 9 years

What kind of car? It was the same. He came from the Human Rights Center and destroyed Vag-com. He said there was a broken circuit. I had to play with the wire. It turned out that the wire was damaged.

Andris 7 (47482) 8 44155 9 years

If the wiring is standard, casting a good new wire is much easier.

Reason 4: There are Russian letters in the track title or tags

Many car players do not support the Cyrillic alphabet, which is why, at best, song names are displayed in the form of unreadable hieroglyphs, and at worst, the music is not recognized at all. The situation is similar with tracks whose tags contain Cyrillic. The way out of this situation is simple - rename the files using only English letters, as well as look at the tags and correct them if necessary, which the article at the link below will help you with.

Read more: How to edit MP3 file tags

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