DIY Philips TV repair

In detail: do-it-yourself Philips TV repair from a real master for the site my.housecope.com.

Repair of plasma TVs: do-it-yourself LCD and LED, LG and Philips do not turn on, video and circuits, liquid crystal

Plasma TV repair: 3 ways of carrying out

The experience of the craftsmen allows you to eliminate breakdowns of various nature and varying degrees of complexity Without video and audio equipment, a modern person can no longer imagine his life. As a result of regular and intensive use of equipment, it is subject to various breakdowns. The potential of imported and domestic TVs is very often violated. A posistor is responsible for this function. Another plasma breakdown can be discoloration, interference, the appearance of light or dark streaks during operation. But sometimes the problem might be with the outlet or power cord. This is only the most minimal description of the malfunctions, as there can be many more problems associated with the TV. Screen faults are the hardest to fix. If dark or light spots appear on the monitor after a shock or water ingress, then it is better to immediately take it to a service center, since only a technician can repair the device.

Before starting the repair work, it is imperative to determine what exactly has broken down and for this, the device is diagnosed. If the TV does not turn on, then a malfunction may occur due to a blown fuse. This applies to LCD TVs and CRTs. At the same time, as practice shows, the problem may lie in the failure of the diode bridge.

If the breakdown in the TV is insignificant, the repair is done by hand

TV repair is possible:

Produce at a service center;
Call the master at home;
Do all the repair work yourself.

Plasma TVs, in contrast to tube TVs, have many advantages, since they: have a richer image, are distinguished by a thin body, are characterized by high contrast and wide viewing angles. However, despite all the advantages, like models with a picture tube, they are susceptible to a variety of breakdowns.

All types of malfunctions that occur can be divided into several categories, namely:

Plasma panel malfunction;
Breakdown of the electrical circuit, receiver;
Problems with sockets, connectors, wires;
Dust build-up inside the device.

If the screen is broken, the image may be partially or completely missing. In this case, it will be necessary to replace the plasma panel in a specialized service center, and you will not be able to repair the TV yourself. If the TV panel is broken, you also need to replace it. If the problem is in the electronics, then the image may be distorted and disappear completely. Electronics can be repaired by yourself by re-soldering defective parts or replacing them with new ones.

Video (click to play).

However, it is imperative to have certain knowledge and skills in working with electronics.

If you carelessly handle wires, cables or connectors, certain problems can arise. Defective parts of the LED TV can be repaired, and in case of a serious breakdown, they can be replaced with new ones. The accumulation of dust inside the case can provoke the occurrence of various malfunctions, which is why it is better to clean the device in a timely manner than to repair the TV for a long time.

Repairing LED TVs at home can be quite a difficult and time-consuming task, which is why you need to pay enough attention to prevention, as this will help reduce the risk of breakdown.

Repairing LCD TVs at home is a solvable task, especially if you have basic experience in electronics

Preventive measures include:

The device must be in a ventilated area;
Dust cleaning should be done periodically;
Do not leave static pictures for more than 20 minutes.

Learning to repair a TV yourself is quite simple, the most important thing is to take into account the advice of professional masters. You can learn all the secrets of fixing LCD TVs by watching video tutorials for beginners, where everything is detailed for each brand of device.

Important! Before starting to repair the TV yourself, it is advisable to consult with a specialist, since the cause of the breakdown can be very serious and you can only cause even more damage to the equipment.

LG is considered one of the most popular home appliance manufacturers. The manufacturer is constantly improving the production of household appliances, introducing the latest technologies, which makes it possible to achieve the exceptional quality of appliances.

To determine how to repair LG TVs and other models, you first need to establish the cause of the breakdown

Basically, factors such as:

Ingress of foreign objects inside the vehicle;
Clogging;
Poor maintenance and misuse.

Before starting to repair an LSD TV, you need to prepare the appropriate tools and check the device for faults. Then you need to remove the back cover of the device and find the instructions, which will be written in Russian, so that you can study the configuration. Initially, the television receiver is inspected, and the reliability of the connection of all cables is checked. After checking the connections, you need to carefully inspect the cable equipment, because it can be the main cause of the breakdown.

If the cause of the malfunction lies in the power cord, then initially you need to replace it and only then proceed with further diagnostics of the device.

Often LSIDI TVs do not work due to a breakdown of the power supply. For the same reason, the computer can often fail. Breakdowns mainly occur as a result of excessive accumulation of dust inside the device. During the repair of an old CRT TV, you need to inspect the basement element of the picture tube. All threads must be illuminated. If you have to repair electronic devices for the first time, then the circuitry is initially drawn up.

Fixing a TV with your own hands is a completely doable task, the most important thing is to get acquainted with the peculiarities of the internal structure of technology from the beginning.

If the LED TV breaks down, two options can be assumed - either the power supply is out of order, or the backlight itself is out of order

The simplest are considered TV models such as:

In addition, among modern TVs, the Sony, Panasonic, Elenberg, Mystery brands differ in a rather simple device. Standard malfunctions are considered to be the lack of backlighting or intermittent loss of sound. In this case, it is important to determine the performance of each individual element. On TVs Supra, Samsung, VVK and others, the LEDs located on the tape often burn out. The issue is fixed by replacing them. The reason for the burnout of LEDs is mainly the constant overheating of the device and its operation at a critical temperature regime. In addition to replacing the LED, it is also important to align the heatsink as this allows for better heat dissipation.

The high reliability of the Philips brand TV guarantees its long service life, however, in some cases, various types of breakdowns may occur. Philips brand technology is of high quality and difficulty in eliminating breakdowns, since the device is characterized by the peculiarity of parts, in particular, such as a transformer.

If the indicator on the Philips TV flashes, it means that the TV itself diagnoses the type of problem

The most common types of malfunction are such as:

Lack of sound;
Blinking, intermittent disappearance or complete absence of a picture;
Image distortion;
Lack of response to commands.

In the case of a broken matrix, it is best to purchase another TV, as it will be very expensive to replace it. If you do not have sufficient experience in carrying out repair work, then you can watch video tutorials or entrust the elimination of malfunctions to specialists.

LCD TVs are a very reliable and functional device, however, if used improperly, if dust and foreign objects get in, as well as in the case of defects and many other problems, various kinds of breakdowns may occur. You can easily eliminate many types of plasma faults on your own, the most important thing is to first study the device of this type of technology.

Televisions, like any other technology, have their own shortcomings and fail over time. Why, to give an exact answer as to why the Philips TV does not turn on or does it by itself is impossible without preliminary diagnostics. As a rule, plasma works flawlessly for a long time, easily broadcasting digital, cable and conventional channels. LCD malfunctions make themselves felt suddenly, but often they turn out to be easily removable with your own hands.

The first thing to look out for is the power cable. It is possible that it was not plugged in enough. Make sure it is in the optimal position and not pinched by heavy objects.

Then inspect the outlet itself or the extension cord where the cable was connected. Pay attention to the tightness of the connection of the contacts. When strongly unclenched, weak contact occurs, due to which the device lacks power to fully function. It can also cause the outlet to heat up and burn the contacts, with a high probability of a short circuit.

Sometimes the LCD TV does not turn on the first time. Many people mistakenly start looking for a problem in the plasma hardware, when in fact, the reason may lie in the control panel. The culprit is dead batteries or a damaged infrared port.

In order to witness the breakdown of the remote control, direct the emitter at the smartphone camera, if the light does not blink, then the batteries are dead or there are other malfunctions.

It is quite possible to start the TV from the control button on the case.

Inspect the receiver itself, often it turns out to be in an inappropriate condition as a result of a fall or mechanical damage, for example, a ball hitting the screen.

If the equipment does not turn on at all, and the LED (light on the case) still blinks, you should study the error codes of Philips TVs. They are included in the user manual attached to the kit, which helps to determine the problem yourself. For example, 3 consecutive blinks indicate a critical state of the power supply unit, etc.

Among other breakdowns, it should be noted:

Problems with the firmware.
Voltage surges.
Power supply malfunctions.
Damaged inverter.
Human factor.

It's worth noting that software breaks down more often than you might think. The problem lies in the unstable power supply or sudden power outages. As a result, the memory module burns out, which leads to the erasure of the operating system.

After the firmware "flies", a black screen is observed, Philips equipment will not be launched from the remote control, it stops connecting to Wi-Fi or starts to hang on the opening splash screen. In rare cases, there is a "shift" of the image to one side.

By the way, it is not necessary to go to the masters, because it is possible to carry out repairs with your own hands.The only thing you need to have a little experience with the software and be sure that all the "brakes" appeared due to the software.

If, after updating the software, the Philips TV set does not search for channels, turns on and off immediately, then this indicates "symptoms" of a hardware failure. Well, in the event that the TV does not react to commands in any way, it remains to take it to the service center.

Attention! Before flashing, find the exact model name of your TV receiver. An error in just a few letters can lead to a complete violation of the startup algorithms. Downloading the software is required only from the official website of the device manufacturer.

Due to power surges, individual power elements of the main board stop working. Often it is they who provoke the loss of the image and the absence of sound, if there is video on the screen. The catch is that the electrical circuit, without stabilizers, quickly becomes unusable.

Initially, this is characterized by minor failures in the operating system. At first, they can be easily eliminated by using a full reset, with the equipment disconnected from the power source. A little later, if the drops and jumps do not stop, the electronics will stop interacting with the control panel, stop seeing the USB flash drive, or even cause the software to crash. Only the master in the service center can cope with the restoration of the TV receiver's performance.

Note! Take care of the safety of your devices by purchasing surge protectors or stabilizers. Such insignificant costs will save expensive Philips equipment from frequent breakdowns.

The Philips TV power supply is the weakest component in the system. It breaks down due to the loss of tightness by the capacitors (the so-called "swelling"). The first signs of a possible breakdown are a whistle or squeak when the device is turned on. Not everyone is alarmed by this, which ultimately leads to a serious disruption in the operation of the device, including its complete replacement.

The power supply malfunction is characterized by the loss of the image, active flickering of the backlight and a reasonable shutdown of the TV. Signs may also vary depending on the model. So, the same whistle makes itself felt if:

Closed capacitors.
The microcircuits have broken.
Transistors burned out.

Of course, in modern devices something like this is very rare. It is not recommended to look for the source of the noise on your own, because after disassembling the case into its main parts, without proper practice it is easy to hook on other equally important parts of the overall system. The best solution in this situation is to visit a workshop with a complete diagnosis of the device.

It is not uncommon for fluctuations in power supply to damage the CPU. And since it only comes with a board, repairs will cost several times more than buying a PSU alone.

Following the power supply unit, most often the inverter is subject to change. By its structure, it performs a number of useful functions, without which it is impossible to imagine the stable operation of a television receiver.

First, it converts DC voltage to AC voltage.
Secondly, the responsibility for changing the brightness lies on its "shoulders".
Thirdly, the inverter is responsible for protecting against network overload and short circuits.

A clear sign of inverter breakdown are:

Changes in screen brightness, sometimes it turns off by itself or completely goes out.
Backlight glare when the power indicator stays on but does not respond to the remote control in any way.
The TV set does not start after a long period of inactivity.
The backlight behaves strangely, lights up after shutdown or refuses to start at all.
There is sound, but no image.

To finally understand that it was the inverter that failed, only diagnostics will help.Carrying it out on your own is by no means recommended, because without special knowledge and practice, there is a possibility of touching important radio components.

Additionally, make sure that the antenna connected to the TV input is grounded. Otherwise, there is a risk of losing your equipment due to a severe thunderstorm.

The most underestimated option of all the proposed ones. Speaking initially, it is impossible to ignore the fact that almost all people do not use the operating instructions for equipment, including a television set. From here comes a number of misunderstandings about exactly how to use the equipment, where to connect the wires or how to start the on timer so that the device does not start suddenly in the middle of the night.

Simple inexperience and lack of knowledge leads to contacting the SC, with complaints about the lack of a signal from the antenna or problems with the definition of HDMI. Things are much worse when an inept buyer decides to replace burnt parts on his own. Experts have long paid attention to the mandatory availability of technical education or experience to interact with electrical TV circuits. Therefore, do not bet the health of your plasma, but rather seek help from qualified craftsmen.

From all of the above, it is easy to guess that before declaring a complete malfunction of the new-found technology, you need to consult the Philips TV manual for help. Perhaps she will explain why the equipment does not turn on.

If Philips equipment has performed well over the past years, then the reason for the unstable operation should be sought in the hardware component. It is possible that the replacement of the matrix or power supply unit will be required. If you have never updated the software, then you should think about "pumping" the software, because often it turns out to be the culprit of all the troubles.

Lead author of many columns at my.housecope.com/wp-content/uploads/ext/956. He is well versed in technology and electronics. He is able to solve any technical problem in a matter of hours, he likes to write about his experience and best practices.

published articles - 94
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on the site since September 25, 2017

in general, the problem with tv.
it turns on, sometimes even normally, it works and all that, but sometimes the silence is just cut down, there is no reaction to the remote control for anything.
I disassembled it in half with grief, since half of the apparatus is bolted and half is latched.

in appearance everything is whole.
if the device turns on, then, judging by the description on the board, there are all voltages on the block and they are actually normal, everything works. but when it stops working, there is only a duty room, as I understand it, +5 V and that's it.
neither 24 volts nor 12 volts for you.

will lie down for half an hour an hour - it turns on again and can work for at least half a day, then again 5-6 you can turn it on and turn the wedge off again.
what are the output capacitors? he measured it with a donkey when it works, everything seems to be exactly, at 24 V there are hardly noticeable pulsations. but that's not all.
he lay in the workshop for two days, they said that they didn’t know they had him, he generally worked smoothly and did not cut himself down.

Repairing a TV is not always associated with a long troubleshooting study of the circuits and flashing the controller. Sometimes it is enough to open the device and carefully examine the appearance of the parts.

The TV got out as faulty and had to go for parts. When turned on, the TV often blinked green LED. The malfunction, in principle, indicated a problem with the power supply.So how to make repairs.1. Place the TV on a flat surface. We unscrew the four mounting screws from the back of the TV. The slot of the screws is an asterisk. See photo. Image - DIY Philips TV repair

2. Unscrew the two screws that secure the TV leg.

3. Lift the back cover. At the top right is the power supply board.

4. We carefully study the appearance of the capacitors. The knurled top covers must be flat. If there is swelling or even opening, then the part should be replaced.

5. We buy, select serviceable electrolytic capacitors. For this repair, capacitors were taken from the CRT monitor board. Capacitors can also be supplied in larger geometrical sizes - a headroom of 10-15 mm. Try to set analogs in terms of capacity, the operating voltage can be used at a higher one. And don't buy the cheapest capacitors, suspiciously labeled capacitors.

6. Unscrew the two screws securing the power supply board. Disconnect the right and top connectors. Parts have been accessed. We solder the capacitors and install new ones.

7. Putting the TV set. DO NOT FORGET to connect the connectors. We turn on the TV to the network. In principle, during the repair it was assumed that it would not work, then not the parts: (. But the TV worked. The LED turned green and the screen lit up. Lucky!

TV on the LT41.1E chassis

So, we were not too lazy to revive and give a second life to the Philips LCD TV! After rummaging through the forums, it turned out to be a typical malfunction for TVs on the LC4.1E chassis.

Is it possible to find out the capacity of an electrolytic capacitor standing alone next to a transformer. Unfortunately, it was flooded with some kind of nasty stuff and all the data deteriorated during soldering, I really would not want to throw away the TV.
Sincerely.

Do-it-yourself TV repair is a responsible business, since today a large number of different models (LCD, LSD, CRT) are presented on the market, each of which has its own technological features. Therefore, the approach to each type of TV is individual; in some cases, special skills will be required (knowledge of electronics, experience with a soldering station).

Before proceeding with the repair of television equipment, it is necessary to find out the cause of the problem.

The most common problems are:

TV screen does not turn on - this can happen with an old picture tube screen and with the most modern television panel. Basically, this symptom is characteristic of a blown fuse. When repairing, it should be borne in mind that the appropriate fuse must be selected for each model. And also experts recommend paying attention to the diode bridge, power supply, wire, perhaps the cause of the malfunction lies in these elements. Read also what to do if Samsung TV does not turn on.

Dim, barely noticeable picture - this kind of breakdown happens with LCD / LCD monitors. The most likely cause of the malfunction: faulty diodes, device backlighting.
There is no sound, the screen "wheezes" - most likely, the sound amplifier or microcircuit is out of order. Also read what to do if there is sound, but there is no picture.
Monitor is on, no picture - Perhaps the cause of the problem is in the video processor or in the receiving unit.

You should be aware that if a darkening of the board or rupture of elements is detected during a visual inspection of television equipment, then it is not recommended to immediately start replacing parts. Since such factors indicate a short circuit that could have occurred in another section of the TV. Therefore, if you do not eliminate the cause of the short circuit, but simply change the failed elements, then the situation will repeat itself.

To repair television equipment, the following tools and equipment may be required:

Screwdriver Set;
hex keys (in rare cases);
pliers;
soldering station (for repairing modern monitors);
screen layout (can be downloaded on the Internet);
multimeter;
oscilloscope.

Many LCD screen problems can be dealt with on your own. But you should know that these screens require more careful handling than, for example, CRT TVs.

First of all, the user needs to study the instructions for his model, and only after that start repairing the LCD or LED screen. You should know that LCD TVs use fluorescent bulbs for backlighting, while LEDs use LEDs.

The TV may not function due to lack of power, to check this, you need to do the following:

Open the back cover of the LCD TV with tools.
Disconnect the wires that are connected to the device matrix.
Connect a working light bulb to the contacts.
Some panels have more than one light source, in which case they must be tested as well. This can be done as follows: pull out the TV matrix and connect it to the network, it will immediately become clear which lamp is out of order.

After the faulty luminaire is found, it must be replaced. This procedure should be carried out as carefully as possible. In most cases, the lamp can be taken out even without removing the matrix - you need to move the protection elements aside and take out the burned-out part using a soldering station. Then a new lamp is installed in the same way.An important rule is that the new lamp must be completely identical to the old one.

Another common problem with these models is damage to the monitor. But in this case, it is not advisable to repair LCD TVs, since it is easier to buy a new screen. This test scheme can also be used to repair plasma televisions of all types. Read also how to fix the LED backlight yourself.

Each manufacturer has its own weak points, so below is a selection of the most common LCD screen breakdowns.

Often, users of this brand are faced with such a problem that when turned on, the device beeps without interruption. This symptom usually indicates that a leak has occurred. It is recommended to try replacing the preout stage diode.

Another common problem is that the monitor turns on and off itself. The main reason for this breakdown is a failed transistor, it is necessary to replace it. It is recommended that such malfunctions be eliminated on their own only by people who have experience in repairing television equipment.

DIY Philips TV repair is recommended if the problem is minor: settings are lost, cable replacement is required.

If the breakdown is complex, then it is better to entrust its elimination to specialists who will not only professionally perform repairs, but also issue a guarantee. Therefore, if the repaired screen stops working again, the user may demand a refund.

LG flat screen owners may have a problem saving settings. Such a problem does not require contacting the masters; you can repair your LG TV yourself. It is enough to switch the device to another operating mode, and all settings will be saved.

As well as in the case of other LCD models, if the problem is serious, then it is not recommended to repair an LG TV with your own hands, it is better to contact a specialist.

Despite the fact that today most consumers prefer the most modern plasmas, CRT screens are still in demand. These TVs have their advantages: they are inexpensive, easy to operate, and the quality of the transmitted picture is still high.

The main problems with CRT devices:

the CRT TV does not turn on - just like on devices of a different type, first of all, you need to check the integrity of the fuses;
a diode bridge malfunction is a common problem with CRT receivers, you can fix the TV only after making a "ringing", you will need a multimeter from the equipment;
breakdown of the posistor is considered the most serious problem; in order to check, it is necessary to turn off the TV's power circuit, then start it again. After, observe the lamp, if it goes out, it means that the posistor is out of order. First of all, you need to adjust the resistance of the network, and then replace the part;
burnout of a transistor or capacitor - such a malfunction can be easily replaced by visual inspection (on black carbon parts), repair is carried out by replacing the part.

Below is a list of problems encountered by owners of CRT TVs.

The Rubin TV buzzes loudly when connected - most likely, the photodetector needs to be replaced.
The ruby does not turn on, the indicator does not light up - voltage surges in the transistor.

The Horizon TV does not have a blue tint, as well as the white balance is disturbed - this is mainly due to a broken resistor.
There is sound, no image - the cause of the problem lies in poor contact of the power connector of the screen board. It is recommended to use a soldering iron to solder the harness into the Horizon TV board.

The screen does not turn on - there is a problem with the power supply.
A horizontal strip appears on the monitor - repairing a Vityaz TV consists in fixing a problem in the frame scan microcircuit.

Since the malfunction of the power supply is one of the most common problems of all types of TVs, it is necessary to study it in more detail.

Since all models of LCD monitors do not have fundamentally different design differences, therefore, the diagram below can be applied to all TVs (Toshiba, Horizon, Samsung, Sony, Rubin).

Repair of monitors equipped with a picture tube, for example, such as (ruby, sharp 2002sc, sony trinitron, vvk), as well as repair of Samsung TV, Panasonic. always starts checking the power supply.

Testing is carried out using an incandescent lamp, but before performing the procedure, it is necessary to disconnect Sharp c2002sc, Samsung or another screen from the load (horizontal cascade). The horizontal scan voltage can vary from 110 to 150 V, it depends on the size of the picture tube. It is required to find a sweep filter capacitor in the TV circuit. Next, you will need to connect a light bulb, in order to remove the load, it is necessary to unsolder the choke and the fuse through which the JV element consumes power. This scheme is used for sharp screens since 2002sc.

After that, connect the power adapter to electricity and measure the voltage, if the values exceed the norm, you will have to check the feedback circuit of the power supply. If the power supply unit is in good condition, then the light bulb is removed and all the elements are soldered into place. This is the basic information on how to repair a TV yourself.

Repairing a Philips TV with your own hands - a similar idea comes to a large number of people who have encountered problems with the operation of such equipment. The very idea of the opportunity to save money on calling the master arouses great enthusiasm, while the opportunity to repair the equipment on your own will allow you to continue to contemplate your favorite films, resting in the evening, and not have to wait until the master finishes the repair and finally provides the result. However, is it justified to repair a Philips TV with your own hands if it does not turn on? This issue is controversial enough. Now we will find the answer to it.On the one hand, certain measures are quite appropriate:

If there is no picture, and the TV does not turn on at all, it makes sense to make sure that it is connected to the mains and the electricity is not turned off. Paradoxically, this advice helps a lot of people.

If there is no sound, it is also worth checking the settings, because it may well be that the children were playing with the remote control, or you yourself accidentally turned it off.

Do-it-yourself Philips TV repair is advisable precisely within the framework of such measures, but if this approach could not help, and we are really talking about a major and serious breakdown, you should not try to disassemble the thing with your own hands, even if you assume that you can do it. Moreover, if you do not have any skills to work with radio and TV equipment. Image - DIY Philips TV repair

Important! Considering the schemes for the repair of Philips TVs, in no case forget that tampering with the structure can be quite dangerous, because the residual voltage remains even when the equipment is disconnected from the mains.

In addition, you should remember that modern TVs are high-tech and rather thin devices, so even specialists do not want to repair them at home. It will be quite easy to break the TV and bring it to a state in which it will no longer be possible to restore its working capacity.

The cost of repairing in workshops is not so high that you risk an expensive device trying to repair it yourself without the proper professionalism.

Important! If you are at the stage of choosing a new brand and model of TV, then the information described in the articles will be useful for you:

In the event that during switching on the TV often blinked green LEDs, this indicates that the malfunction lies directly in the power supply. So, how to repair your Philips TV yourself:

Place the TV on a flat and level surface. Remove the four mounting screws from the back of your TV. The slot of the screws is an asterisk.
Remove the two screws that secure the TV legs.
Lift the back cover. In the upper right corner, you will see the power supply board.
Take a close look at the appearance of all capacitors. The knurled top covers must be flat. If there is a swelling or opening, then the part must be replaced.
Purchase, pick up faulty electrolytic capacitors.

Important! Try to install analogs that exactly correspond to the capacitance; a higher operating voltage can be used. And do not buy the cheapest capacitors or parts with suspicious markings.

Remove the two screws from the power supply board securing. Disconnect the top and right connectors. The details have been fully accessed. Unsolder capacitors and install new ones.
Assemble your TV. Don't forget to connect the connectors.
Connect the TV to the network.

Important! The goods market offers a huge selection of models from different manufacturers with all sorts of characteristics. We have prepared a rating of TVs from two companies Samsung and LG - you can watch it by clicking on the link "Rating of 4K TVs".