The radio turns off when the volume is increased, what should I do?

The car radio turns off when the volume is turned up

Incorrect connection of wires contributes to spontaneous turning off and turning on of the radio. At the moment of a sharp increase in performance (engine starting), the connections are closed. To fix the problem, you need to do the following:

remove the device;
assess the tightness of the cables to the terminals;
fix the breakdown by inserting the wire all the way.

If the device still turns off after repair, you should inspect the cables for damage. Diagnostics and troubleshooting are carried out as follows:

the tape recorder is turned on;
set the average volume level;
alternately disconnect and return the speaker plug to its place;
add sound.

If the device does not turn off when adjusting the sound, the problem should be looked for in the wires leading to the speakers. The damaged element should be completely replaced. If the problem cannot be fixed, it is recommended to contact a specialist.

Surge protection

Manufacturers of car radios, in an effort to extend the life of their devices, install voltage limiters. The overload protection system often causes the tape recorder to turn off when you turn up the volume. If the search for other faults does not produce results, the reason should be sought in the presence of a limiter. As volume increases, power consumption increases. When the maximum voltage is reached, the radio will turn off.

The specialists refuse to fix the problem. If you remove the protection, the device may break. If the owner still decides to get rid of the limiter, he will have to carry out the repairs himself. The work order includes the following steps:

Installation of amplifiers located between the speakers and the audio device. This helps increase the sound volume without changing the voltage in the tape recorder.
Checking the wires connecting the radio to the speakers. When identifying crushed or twisted cables, the cause should be looked for in them. Damaged parts of the system are replaced with new ones.

Lack of power supply

If the car radio turns on and immediately turns off by itself, the cause should be sought in the following faults:

Connecting an audio device to a power source with thin wires. If the cable thickness does not exceed 0.5 mm, the device will not have enough power. The voltage drop is so pronounced that the radio turns off spontaneously when listening to music at high volume.
Incorrect power supply connection. When the high beam is turned on, the radio stops working if the quality of the connection of the wires of the negative pole of the device is poor. When connecting the “plus”, the integrity of the wire leading from the ignition switch to the dashboard is often damaged. In this case, car owners simply clean and connect the broken ends. In this case, not only the radio does not work correctly, but also the speedometer. If erroneous codes appear when diagnosing the engine management system, the radio is connected to the power circuit incorrectly.

Reconnecting the device to the on-board network helps to cope with the problem. When performing work, cables with a thickness of at least 0.75 mm are used. To connect powerful car radios, use wires with a cross-section of 1 mm or more. The negative wire is connected as follows:

a pin located under the dashboard stands out and is cleaned with sandpaper;
take the end of the wire with a terminal of the appropriate size;
the terminal is put on a stud, the connection is secured with a nut;
The positive cable is connected to the car battery.

A connection made using this method is well suited for connecting powerful car radios and amplifiers.

Possible reasons

If there is an internal breakdown of the device, the car radio turns off when the volume increases while driving quickly over bumps. If the vehicle's battery is discharged, the radio, when operating at high volume, turns off when the high beams are turned on or the car engine is started.

If the power supply circuits are not connected reliably, a lack of power appears. Because of this, the device constantly turns off. If there is damage or leakage in the speaker wiring, the radio will turn off by itself. If the overvoltage protection is triggered, the operation of the audio device will also be interrupted when the volume increases.

The radio turns off when the volume increases: turns off, why, adding, adding, immediately

The radio in a car is one of the most powerful consumers of energy. It happens that the radio turns off when the volume is increased, and after turning it on again it continues to work normally, but at a lower sound level. This is especially true for powerful devices equipped with subwoofers.

Solutions and tips

To determine whether a car radio is defective, you should remove it from the car and take it to a service center that repairs audio equipment. If a fault is discovered that cannot be repaired, you will have to buy a new device. Speakers with a voice coil impedance of less than 4 ohms should not be used. This will sooner or later lead to failure of the audio system due to overheating and burnout of the power amplifier chip.

To identify and fix speaker problems, you should check your speaker cables for twisted, frayed, or damaged wires. If extensive defects are found, the entire wiring should be changed. You can do this yourself or at a car service that specializes in car audio.

When connecting connectors, you must ensure that the leads do not come into contact with the speaker housings to prevent a short circuit.

To solve problems with overvoltage protection, you can install an additional amplifier or replace the audio device with a more powerful one.

To eliminate the power shortage, you should reconnect the car radio to the on-board network. Wires with a thickness of at least 0.75 mm should be used. The more powerful the device, the thicker the wire. The most reliable connection of the negative pole is carried out as follows.

A stud is found under the instrument panel, which is cleaned of paint, dust, dirt and oil. Then take a piece of wire with a “chip” that has a hole of a suitable diameter. One end is connected to the radio, the chip is put on a pin and screwed tightly with a nut and a spring washer. The positive wire connects directly to the car battery. The connection made in this way will be the most reliable. This especially applies to powerful radios, as well as active subwoofers (with an amplifier).

Source: https://AutoTuning.expert/magnitola/vyiklyuchaetsya-pri-uvelichenii-gromkosti.html

The radio stutters when the volume is turned up and the engine is running

Nowadays, having a car won’t surprise anyone. As a rule, a family has one or even two cars. Comfort in a car has already become a common thing; you won’t surprise anyone with power steering, power windows, or a built-in radio. Music generally occupies a separate position in the options installed on your favorite car; there are real fans and professionals of this matter.

Lack of voltage

First of all, if the sound on the radio stutters when consumers are running from the internal network, this may be caused by a lack of supply voltage. That is, the car’s generator produces the necessary voltage, the battery also powers the internal network, and the current is not enough to fully power the radio. You can check this by connecting a voltmeter and an ammeter and look at the values on the devices.

Then turn off the internal loads on the network and see what happens to the values. Consumers can be high or low beam headlights, a stove, fog lights, or a heated glass system. If after this action the sound returns to normal, then there is a lack of voltage.

There are several ways to solve this issue:

An additional power supply system is installed, which operates according to a capacitor circuit and accumulates the necessary voltage for power supply. After that, the radio tape recorder is powered from them;
You can buy and install a sound amplifier, which is recorded separately and amplifies the incoming sound signal from the radio. In this case, there is no need to increase the sound on the radio to full power;
Go to a professional auto electrician for service, he will take the necessary measurements and advise what needs to be replaced. Perhaps your generator is damaged and is not producing the charge it needs.

Amplifier overheating

Another common reason for the radio to start stuttering may be overheating of the output stage amplifier.

It doesn’t matter whether the Pioneer, LG or any other radio tape recorder stutters, they are all assembled according to the same structural diagram. The output stages are assembled on powerful transistors that emit a lot of heat

They are mounted on cooling radiators, the connection point is treated with thermal paste. Thermal paste helps to better transfer the generated heat to the radiator.

Over time, during operation, the thermal paste dries out and heat conductivity is impaired. The transistors overheat and the radio may go into protective mode, and in a bad case scenario, burn out altogether. In some modern radios combined with video systems, the output stage is assembled on microcircuits that are even more sensitive to overheating. If they fail, restoration work is quite expensive, and parts for certain models are supplied only on order.

In order to avoid such situations, it is recommended to remove the radio from its standard installation location without disconnecting it from the car. Switch to playback mode, turn up the volume and after 15-20 minutes touch the side walls with your hand, on which the output stages are usually attached. If your hands feel very hot to the touch, you should change the thermal paste.

You can do this yourself by buying a tube of thermal paste. Then, using a Phillips screwdriver, carefully open the covers of the radio. Carefully inspect the insides; you should notice transistors or output stage microcircuits screwed to the side walls. They unscrew from the walls and bend a little.

Using a flat object, you need to apply a thin layer of new thermal paste into the resulting area, having previously cleaned all areas of contact from the old paste. If this sounds scary and incomprehensible to you, contact any auto electrician who will quickly and inexpensively change the thermal paste.

When operating a car in winter, very often the heater works constantly. The radio is installed very close to the heater radiator and may also overheat as a result. It would be advisable to remove the radio and make some simple thermal insulation, using, for example, materials for bathhouses. This will remove excess heat and the radio will stop heating.

Why does the radio turn on and off immediately when the volume is increased by itself?

Car owners often notice that the radio turns off when the volume is increased. If the problem occurs regularly, you need to test the main parts of the system. The repair procedure depends on the brand of audio device or car. Simple faults can be fixed with your own hands. If more significant damage occurs, contact a specialist.

Insufficient battery power

If the radio constantly turns off when the volume increases, the reason should be sought in the low power of the battery. When the engine is running, the battery power drops sharply, which is why there is not enough voltage to operate additional devices. Installing capacitors on radios helps solve this problem.

You should look for problems in the battery itself. Malfunctions in the operation of audio devices occur when using an old-style battery. The battery may need to be fully charged. It is also recommended to check the wiring connecting the battery to the on-board network.

Why does the radio turn off when I turn up the volume?

But turning off the radio when the volume is increased means that the radio is not powered properly! That is, the radio circuit is not supplied with the required voltage of 12V, but a little less; due to these losses, it cannot take as much current as it needs under a certain load.

You can do a simple experiment. We check the voltage on the battery with a voltmeter; it should be approximately 12.5V. We turn up the volume on the radio and the voltage remains virtually unchanged. Now we connect the voltmeter directly near the radio to the power wire. At low volume, the voltage will correspond to the battery voltage, that is, approximately 12.5V. But when you add volume, the voltage will decrease and can be 10V or less. There have been cases, especially on older machines, that the voltage dropped to 8V!

This means that there are huge losses in the wire that powers the radio. Therefore, the radio must always be connected directly to the battery and with a large cross-section wire!

Note: if, when you turn up the volume, the voltage on the battery also drops, then it most likely asks for disposal.

If the power cable is routed from a battery and has a large cross-section, and the problems persist (this happens very rarely), then you need to check the capacitors in the radio itself.

Why the radio does not turn on - solutions to the problem

There are cases when the radio turns off and turns on randomly when the car engine starts.
After which you have to start the radio again. These actions are very annoying when they happen regularly. This situation may occur depending on the brand of the car or the manufacturer of the radio. In addition to small unpleasant situations, more complex malfunctions also arise.

Vehicle interior

When shutting down the radio, problems may arise such as a complete spontaneous reset of settings and restoration of factory settings. This situation is often very annoying, as it becomes necessary to set everything up again. Therefore, most car enthusiasts, when this malfunction occurs, rush to get rid of such a breakdown as quickly as possible.

Why does the car radio turn off when the volume is increased?

How to determine why the radio turns off and fix the problem

When listening to the radio in a car, especially with a fairly powerful audio system with good subwoofers and tweets, many devices experience malfunctions. Most often, car enthusiasts ask the question, why does the radio turn off when the volume is increased? Indeed, turning off the device when the volume is increased, especially when transmitting power to the bass, in a car audio system often turns off the radio.

What is the problem?

In this case, the device turns on again on its own without any problems, but operates at a lower volume. When I try to increase the volume, the situation repeats. Often, after turning off the radio, the user has to turn it on himself, which is very inconvenient.

Another situation that forces drivers to ask why the car radio turns off without warning is when the engine starts. Depending on the model and brand of the radio and the car, the shutdown can be short-term (when you start the engine, the device turns off for a couple of seconds and then plays again), or permanent, when you have to turn on the radio and adjust the sound again.

In more complex cases, after turning off the radio, the equalizer settings and other operating parameters of the device are reset, after which you have to re-configure the radio's operating parameters after turning it on. This causes a lot of inconvenience for drivers, and in order to find out why the radio turns on and off, you often have to remove the device from the socket and look for the root of the problem in the connection.

Let's look at the most common reasons for the radio turning off spontaneously and ways to solve the problem. They may consist of malfunctions of the audio system itself, as well as problems with the redistribution of voltage between all audio system devices in the car.

A defect in the radio itself or an acquired malfunction

Factory defects in car radios are not such a rare occurrence. During the production of the radio, various defects could have occurred inside the device's microcircuits, which lead to short circuits and other operational problems. To understand why the radio turns off when you turn up the volume, you will have to remove it from the car and take it to a car service center or service center so that specialists can diagnose the audio system.

Malfunctions when connecting speakers to the radio

Incorrect connection of speaker wires to the radio connectors can also cause spontaneous shutdowns of the device. Especially when you start a car engine with a short-term increase in power, a short circuit occurs in the wires with an incomplete connection (input to the plug). To eliminate this malfunction, you need to visually check the contact level and, if necessary, insert the speaker plugs into the radio connectors more tightly.

You can also check the integrity of the wires leading to the speakers: turn on the radio at normal volume and disconnect the speakers one by one, increasing the volume. If the radio does not turn off when you increase the volume, then you can understand that the malfunction lies there. Replacing the speaker wire or contacting technical service helps.

Lack of car radio power supply

When you turn up the volume on the speakers, the radio may also turn off because the cross-section of the wires cannot withstand the load, causing the fuse to trip. To solve this problem, you need to change the wires to thicker ones, and also power the radio directly from the battery. In 90% of cases, this helps to get rid of problems in the operation of the radio, as well as improve its performance: the device will work even when the engine is started, with the cigarette lighter working and the phone being charged.

Possible malfunctions and options for their elimination

So, how to get the head unit and repair the radio with your own hands, we suggest you learn about the main problems in the operation of the systems, as well as options for eliminating them. Where can I get my car radio repaired? In any specialized service center, but now we offer to find out how to repair such a system at home.

There is no screen backlight or the device does not turn on

What reasons can lead to such a malfunction:

In most cases, the reason lies in the fact that +5 power is not supplied to the device. In this case, after dismantling and disassembling the device, you should check contact number 2 on connector CN701. A voltage of 14 volts should be supplied to this contact; subsequently it is supplied to the collector elements of the transistors. If there is no voltage, then most likely you will have to change the transistors or zener diode.
There is no signal to turn on the power. In this case, diagnostics comes down to checking the voltage level at contact number 40 of the IZ901 controller. In addition, we also recommend making sure that contact number 3 is receiving a signal (video author: Dmitry Epishev).

The system turns on, but there is either no sound or noise

If the audio system is working, but there is no sound, or the sound is turned off or there is noise, then there can be many reasons.

They all depend on the specific situation:

The power unit starts, the car radio is activated, but there is no sound. If the sound disappears, it is most likely due to the lack of a Stand By pulse. In case of such problems, we recommend diagnosing the high-level signal at 4.8 volts - this means contact number 4 on the IC901 controller. If there is no sound, as well as no signal coming to the contact, the repair procedure will consist of re-soldering the controller. If the controller is intact and working, then it is necessary to check the functionality of the contacts on the power amplifying elements.
The next situation is that the head unit starts up, but the sound is noisy. If the sound is loud when you try to increase the volume, then first of all you should diagnose the presence of voltage at the so-called bases. The parameter value must not correspond to a zero value. If the voltage at the bases is zero, then in this case it will be necessary to replace the transistor components. In addition, the appearance of the background may be due to the inoperability of the button on the Mute control panel. If it really does not work, then the reason should be sought in the controller. If the controller is intact, but the sound is still incorrect, then check the functionality of the transistor element Q802.
In addition, such problems are often associated with the failure of one or several circuits on the amplifier device. If there is no sound, you should check all components located in the area from input to output on the circuits. There is a possibility that the circuit or capacitors have failed (the author of the video is the Gripells channel).

The radio does not play discs, memory cards, or the disc is stuck

Why doesn't the head unit play data from a memory card or disk, how can I get it out if it's stuck?

This malfunction can occur for the following reasons:

Most often, such problems are associated with the fact that the audio system does not perceive the format of the music track recorded on a disk or flash drive. There is no need to repair such a radio; you need to record the music in a different format.
Often, problems with playing tracks, as well as stuttering of discs, are caused by contamination of optical components, in particular, we are talking about the lens. If the system really does not function due to contamination, then this problem can be solved by installing a special cleaning disk in the drive. Before use, please read the operating instructions for the disc. If such cleaning does not help, then you can try to blow out the internal components of the system with a vacuum cleaner or disassemble the device and clean the optical lens with a piece of cotton wool.
The problem may be caused by a lack of laser current. In this case, you can get rid of the malfunction by adjusting the laser beam.
Problems with wiring or cables. During prolonged use, the screws in the device's structure may become loose, in which case they just need to be tightened. If there is a leak in the operation of the resistor elements, then the damaged parts must be replaced.

Buttons don't work

If the buttons do not work, this may primarily be due to their mechanical damage. In order to get rid of this problem, you will have to disassemble the device, in particular, you will need the front panel on which these buttons are installed. After disassembly, it is necessary to diagnose the condition of the elements - there is a possibility that the malfunction is associated with disconnected contacts. If this is the case, then they need to be re-soldered. If the button fails and nothing can be done, then it will need to be changed (the author of the video is the Radioblogful channel. A soldering video blog).

In addition, the inoperability of the buttons is often associated with problems in the operation of the software. If you have such problems, you can try to reboot the device; if this does not help, then you need to return its settings to factory settings. Naturally, the entire configuration will be deleted from memory. If you return the device to its factory configuration, you will need to turn it off for 2-3 minutes before further use.

The device is heating up

What to do if the audio system constantly heats up and turns off on its own:

The failure of such a plan may be due to poor nutrition. If there is no power, then starting the radio will be impossible, but if we are talking about power failures, then the device will turn off for no reason. First of all, you should diagnose the supply wire - there is a possibility that it has come loose from the connector or is damaged; in the latter case, the wire must be replaced.
The car radio can overheat due to inadequate ventilation, and as a result of overheating, it will, of course, turn off. Judging by the reviews of our compatriots, such problems are more relevant for head devices from the Pioneer manufacturer, in which case overheating will not cause serious problems. If the device heats up very much and also randomly turns off, then you should consider additional ventilation for the system.
Problems with the operation of the device can also be caused by malfunctions in the software part. In this case, again, you can try resetting the entire system configuration to the factory one.