Agency for repairing audio devices and family cinema

The panic that a home theater owner has when an expensive device breaks down is completely understandable. what should we do? Repairing household appliances at home is a way to save money and time. If you have at least basic technical knowledge, try to constantly understand the cause of the failure and eliminate it. First, the main problem in repair is fault detection. In the simplest form, the home theater consists of four devices:
• Signal source
• TV
• Acoustic speakers
• Receiver or amplifier
First of all, you need to know which component is not working. Assume that there is an assurance that there is a normal input signal and the screen remains dark. Therefore, the monitor is broken. If you have special skills, you can repair it yourself. If there is no sound, the speaker may be damaged. If the sound comes but stops after a while, it means the amplifier is broken. If the disk does not load - the signal source does not work.
In the home theater system, make sure that there is a connecting wire bundle that terminates in the connectors (the only exception is wireless acoustics). All wire connections are properly connected and working.

In the next step, we check the power supply of the device because in 90% of failures, the problem is exactly the power supply. Power supply repair requires special skills that you can call Agnes representative in Mashhad or bring your device to Agnes company so that Agnes technicians will repair your device.
In every type of power supply, there are necessarily circuit breakers, which every repair is checked. It is important to note that many companies have abandoned the use of traditional fuses and replaced them with low-value resistors. They perform the protection function more accurately due to their strictly constant current limit. The failure of fuses can be solved by two things:
• Reset the breaker or replace the fuse with one of the same rating.
• If the explosion occurs again, have the receiver professionally repaired.
Then it's time to verify the bridge rectifier diodes. Each of them should show a short circuit in only one direction. It's also a good idea to check protection varistors and thermistors, but this isn't always possible with just a tester.
In models with toroidal transformer, put a thermal fuse. You need to exit the plan to check it. Like standard, it can burn due to sudden drop of input voltage and protect the primary winding of the transformer. Therefore, when a transformer fails, it is not necessary to throw it away. It is better to find the bump under the braid, remove the thermal cut from under it, first replace it with a piece of wire. Such repairs make the cinema work more.
The switching power supply in home theaters is much more complicated in terms of structure than linear models. Normally, key elements burn out. (thyristors, high-power transistors, microcircuits)
Most users complain of loss of sound in home movies after a short segment of normal operation. For example, F61 error is displayed in Panasonic home theaters. This is usually due to failure. Unstable power amplifier leads to the fact that the output of the speakers is turned off.
Sometimes the lack of voice is associated with trivial causes. One of these failures is the lack of volume control. This is due to a malfunction in the position of the volume switch on the front panel. Soldering must be done first. If it doesn't help, you need to take it apart and clean it after disassembly. As you can see, everything is very simple.
With the remaining speakers fully functional, you can often encounter subwoofer failure. The search should begin with the survey leading to the subwoofer wires: it is necessary to test his tester. Without damage, you should check the connectors on the subwoofer itself and in the cinema. If this effort does not bring positive results, two options remain:
The subwoofer itself is broken.
Cinema sound amplifier failure
As stereo and theater equipment became cheaper, it made its way into more homes. Today, it is not uncommon to have stereo or full theater systems in the living room. From surround sound speaker systems to DVD and Blu-Ray players, most items in your home theater and stereo systems can be repaired if they break. So before you throw it out, try to get inside to fix the problem!
This category includes repair guides for stereo systems from the relatively simple to the technologically advanced. Gramophones (gramophones) were one of the first instruments for recording and playing analog sound. Similarly, the loudspeakers we use today have not changed significantly from their original design in the early 1900s. Amplifiers and receivers, on the other hand, are full of electrical circuits that modify and facilitate the movement of signals between input devices and speakers. Both simple and relatively complex devices can be repaired with a little knowledge and the right tools. And if it didn't work in the first place, what's the harm in trying? And of course, if needed, you can contact Agnes Engineering Company.
Likewise, the way we consume visual content has changed dramatically over the years, largely based on the physical media we use to store it. From VCRs to DVD and Blu-ray players to DVR cable boxes and projectors, the home theater landscape is always changing. Although the media may change, our will to fix things that break does not, so you can call us to fix your home theater.
When you first set up your home theater system, you'll likely spend a lot of time deciding on the position and location of the TV, the quality of the sound system, and the type of display that will give you the clearest picture. You might even be more careful in adding new lighting to brighten up the seats or dim the lights as the movie begins. But over time, you may notice that parts of your home theater stop working as well as they did after installation. Whether it's your TV's picture problem or a speaker that no longer sounds, you can count on our team of trained technicians to solve the problem.

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TV repair in Mashhad