Repairing an HDMI connector on a TV

HDMI (High Definition Multimedia Interface) is a connector that allows you to transmit high-frequency audio and video signals. This port is present in almost all modern TVs. It is an improved version of the Scart connector. HDMI can read higher frequency files.

Benefits of HDMI

It has its advantages:

1. You can watch movies in the highest quality.
2. Improved sound quality.
3. Ability to accept the highest resolutions (1440p or Quad HD).
4. Refresh rate over 100 Hz.
5. The device is equipped with a modern color palette that can perceive several million colors.
6. The interface has only one digital connection. This avoids cable tangles.

How to identify the cause of a broken HDMI connector on a TV

If, when connecting the device to the HDMI connector of the TV, no sound or image appears, it means that something is broken.

First you need to make sure that the connector is broken. You need to connect another device to it. If the TV still does not work, then the connector needs repair.

You can identify the cause of the breakdown by looking into the connector. If mechanical damage is noticed, then the cause is a normal breakdown. This problem appears if there is an inaccurate connection to the cable. The connector needs to be completely replaced.

Attention! If no external damage is noticed, then the failure is associated with a burnout of the microcircuit.It usually burns out due to high voltage. The microcircuit needs to be replaced.

Why did the connector break?

The connection rules were violated. In most cases, the HDMI connector breaks after connecting the computer. The computer's power cord has grounding pins. They are not used in most houses and apartments. Therefore, during operation, voltage begins to accumulate inside the system unit. And when you connect the system unit to the TV, it goes to the latter.

Important! The microcircuit has a direct connection with the connector body, so if the permissible voltage limits are exceeded, it burns out.

How to repair an HDMI connector yourself

To repair the connector yourself, you need to understand the cause of the breakdown. Most often, everything is connected to the microcircuit. In most cases, it breaks due to improper use of the device. We need to determine what type of microcircuit is installed in our case.

They come in two types:

1. Planar.
2. BGA.

Reference! Replacing a planar chip is not difficult. Only basic knowledge of electronics is required. With BGA, everything is more complicated. This requires special equipment, so you can’t do it without an expert.

When to contact specialists

You need to contact a specialist in the following cases:

1. If the BGA chip is broken. Repair of this type of device is more expensive than planar one. This is due to the fact that repairs can only be carried out by a specialist in this field. You will also need special equipment. There are times when, after replacing HDMi, it is necessary to flash the keys responsible for transmitting video and audio signals.
2. Often when replacing a microcircuit, the image works, but there is no sound. In such cases, the microcircuits responsible for the memory are checked. They store the connector's operating parameters.
3. There are also difficult situations associated with breakdowns. For example, the manufacturer did not make a buffer multiplexer for the input. Instead, he routed the input directly into the processor. In this case, there is a risk of the port breaking. But the TV itself also very often breaks down. If the processor fails, replacing it does not always help. The system board may need to be completely replaced. Similar errors can be found in cheap TV models made in haste.
4. There are also microcircuits that can disrupt the operation of the device when burned. Example - Philips 32PFL7962D. If the multicompressor is damaged, this TV will stop working completely.
5. It is also necessary to contact a specialist if a person is completely unfamiliar with technology. He doesn't know what the TV is made of or what parts are inside. An inexperienced user can only make things worse during the repair process.

When a connector breaks, we first need to inspect it for physical damage. If there are any, we take the TV to the service center. If they are not there, read the instructions to determine the type of microcircuit. You can try to replace it yourself, or take the device for repair.