The radio works but there is no sound from the speakers

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No sound in car radio

No sound in the car radio? There can be many reasons. Therefore, before starting repair work, you must find the problems that led to the breakdown. Without the necessary skills, you can consult with a specialist who will tell you exactly how to act. In particular, if there is no sound in the car radio, most often the problem is associated with a malfunction of the power circuits.

The radio works but there is no sound from the speakers

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The radio sang and sang, and today, out of the blue, it stopped singing.
There is no sound, the radio plays, the disc reads, the radio picks up, but the sound is gone. The whole system is 1 month old. Tell me what could be wrong, where the sound went missing. Among the visible symptoms, besides the absence of sound, is that when the power is turned on, there is a slight grunt in one speaker and silence. 100% short. There was the same nonsense in the first month - there was a short circuit in the driver's door. By the way, I played music in the salon.

And what does this threaten? How to fix?

Nothing special - the amplifier protection is triggered.

Why does the entire system turn off and not just one speaker? HELP ME PLEASE.

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.

Radio - no sound:((

Is there an external amplifier in the car? How many pairs of acoustics are there in the cabin?

Alternatively, one of the wires going to the acoustics could have shorted, and the head went into protection.

If there is an external axis, then the same as above + the control wire for the axis may be interrupted/shorted to ground.

Well, I wouldn't say that

Unless you already have money in your pocket for a new head.

My advice: before it becomes excruciatingly painful for the years spent aimlessly, © find plates to remove (or make them yourself - as far as I remember, for sons of this series you need two plates 0.5 cm wide and about 8 cm long, 0.5-cm thick 0.7 mm - cut from tin), remove the head and check/insulate all contacts. It’s just that at one fine moment everything can end not only in the burnout of the radio, but in the burnout of the wiring in the car panel and much more disastrously. (ugh*3)

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.

Reasons why there is no sound in the radio

1. Malfunction of the speakers is the first reason why the sound disappears. The car radio has two speakers, which may simply break over time. Only one can break, then the sound will only be on one side. If both do not work, it is recommended to carry out a full diagnosis, because the reason may be in another unit of the radio.

2. Amplifier malfunction. If it is broken, the radio will work without sound.

3. Loose contacts on the device. Very often, after prolonged use, one or more contacts are broken. To correct the situation, simply solder them.

4. The sound in the radio may disappear due to a short circuit. In this case, the device does not receive enough electricity, which prevents it from working properly.

5. Using a powerful speaker system may result in the car radio operating without sound. The amplifier cannot withstand heavy loads, which leads to its breakdown.

What to do

If the signal is lost, then you need to check all the elements. Most often they fail:

Amplifier.
Radio tape recorder.
Connecting elements.
Speakers.

Work is often carried out to replace the amplifier. This element of the system is designed to improve sound quality.

Amplifier replacement

If the speakers are in good condition, the amplifier chip needs to be replaced. To perform such work, a soldering iron and consumables are required. All parts inside are located tightly, so work should be carried out with great care. Instructions for carrying out work:

The board is removed from the metal case.
The faulty microcircuit is soldered off.
The seating area is being prepared for the new layout. The leads are adjusted to the part using tweezers.
During operation, adjacent elements are protected with foil.

The radio works but there is no sound from the speakers

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Look at the contact from the tape recorder on the speakers or on the speakers themselves

as a result, two radios work

Then bam, and the tape recorder turned off, then turned on, and so on a couple of times

the voltage turned out to be 15.0v

I went to the service center and they said the radio was burned out.

_________________ Everything is iron when the thread breaks. Even holy Mercedes.

Isn’t it your topic that I remember?

there is no amp or subwoofer, it doesn’t cost anything, 4 speakers and that’s it

if one of the speaker wires shorts to the body, then the sound in all speakers disappears - protection against fools.

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:

Make sure that the anti-theft mode is not activated on the head unit, which requires a car radio activation code.
Check your volume and audio settings.
Check the various connection sockets (radio, CD player, AUX inputs, etc.).
Check all onboard fuses.
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:

Make sure the amplifier is turned on.
Determine if your device has security mode enabled.
Check for unconnected or loose speaker input and output wires.
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.

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.

We exclude the head unit and amplifier.

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

Answers

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

From the mafon to the speaker, check the wire and switch the rear places on the mafon... you should understand what the problem is. Has she played before at all?!

Anonymous 7 (40499) 2 8 17 9 years

Well, there is a few meters of wire going to the rear speaker. Obviously there is a break there.

gutta 3 (740) 8 16 9 years

What kind of car? It was like that too. Came from the PC and hooked it up with a Vag-com. It said there was a broken circuit. I had to ring the wire. It turned out the wire was damaged.

Andris 7 (47482) 8 44 155 9 years

If the wiring is standard, then it is much easier to throw in a good new wire.

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:

Find the stud closest to the radio
Clean it from dirt and paint.
Take a piece of wire with a terminal that has a hole of a suitable diameter.
Connect one end to the negative terminal of the radio
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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