21 TV malfunctions and repairs in the service center

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If the transformer is in good working order, the maximum amplitude of the resulting differentiated pulses should be no less than the amplitude of the original rectangular pulses.

If the TDKS has short-circuited turns, we will see short differentiated pulses with an amplitude two or more times smaller than the original rectangular ones. This method can also be used to determine the failure of transformers of network pulse power supplies.

The method also works without desoldering the transformer (of course, you need to make sure that there is no short circuit in the secondary circuits).

Another line scan malfunction, in which the power supply does not turn on and the lamp, which is turned on instead of the fuse, glows brightly, is a breakdown of the line deflection coils. This malfunction can be usa telegram data determined by disconnecting the coils. If the TV turns on normally after this, then the deflection system [OS] is probably faulty. To verify this, replace the deflection system with a known good one.The TV set should be turned on for a very short time to avoid burning the kinescope. Replacing the deflection system is not difficult. It is better to use the OS from a similar kinescope with a diagonal of the same size.

We present to your attention 21 reasons for TV breakdowns that occur for a variety of reasons and can be fixed in specialized service centers.

An unexpected breakdown of an LCD TV is an annoying problem that can only be solved on your own if you have the appropriate knowledge. It is better to contact a service center for specialists for an expert assessment of the malfunction and its elimination. High-quality TV repair will be provided by real masters from TVmastera, who have solid experience in solving such problems.

We have selected the most common types of malfunctions and the reasons for their occurrence. Perhaps this will help you determine the cause yourself and go to the service center a little prepared.