Disassembly Xiaomi Redmi TV Soundbar: a step-by-step guide with photos and tips

Xiaomi Redmi TV Soundbar is a popular solution for improving the sound of TVs, but even such a reliable device can have problems, from banal contamination of speakers to failure of electronic components.Sunbar disassembly is often required for cleaning dust, changing speakers or repairing the amplifier board, but without knowledge of the design it is easy to damage fragile mounts or break plumes.

Unlike most acoustic systems, where the body is held together by screws, here the manufacturer used a combination of latches and adhesives, which complicates the process. In this article, we will learn how to gently open the body without breaking the plastic locks, what tools you will need, and what to look for when you reassemble. And if you have never disassembled audio equipment, don't worry: our step-by-step photos and video tips will help even a beginner.

Preparation for disassembly: tools and precautions

Before you start your screwdriver, make sure you have everything you need. Xiaomi Redmi TV Soundbar (LX06, LX07 and similar models) has a specific design, so a standard set may not be enough.

• 🔧 Plastic mediators or shoulder blades (2-3 pcs) - for disconnecting latches without scratches.
• 🔩 Cross screwdriver T5/T6 - for screws mounting speakers (in some versions).
• 🧴 Isopropyl alcohol (90%+) - to remove adhesive residues.
• 📸 Smartphone with camera – to capture the location of plumes and wires.
• 🧲 Magnetic mat or container for storing small parts.

Pay special attention to the workplace: lay soft fabric (such as microfiber) so as not to scratch the soundbar body. If you are disassembling a dust cleaning device, prepare a brush with soft pile and a tank with compressed air.

⚠️ Warning: Never use metal screwdrivers to separate plastic latches - this will cause chipping! Also avoid heating the case with a hairdryer: the glue inside can melt and flood the speakers.

Step 1: Removal of the upper body cover

So, starting with the hardest part, the top panel is separated, and in Redmi TV Soundbar, it's mounted on 8 plastic latches (4 on each side) and two glue points at the connectors.

1. Put the soundbar upside down on a soft surface, which will prevent the internal parts from falling off at the autopsy.
2. Insert a plastic mediator into the gap between the top and bottom of the housing from the end (from the HDMI ARC or Optical connectors).
3. Carefully drive the mediator along the seam, alternately clicking the locks, you will hear the characteristic clicks.
4. Once the latches on one side are free, lift the lid and check if the glue is disturbing the connectors. Drink alcohol if necessary and wait 10 seconds.

If the lid doesn't lend itself, don't force! You've probably missed one of the latches. Look at the hull for a lumen -- sometimes the locks are seen as small protrusions.

Step 2: Disconnecting the plumes and dismantling the speakers

When you remove the cover, you'll see an amplifier board (usually green) and two or three speakers attached to the screws, and the key is to keep the plumes that connect the board to the control buttons and the indicators intact.

• 🔌 Turn off all the plugs on the board, starting with the widest one (that's a button plume). Put a mediator on them, not pull the wires!
• 🔊 Unscrew the speaker screws (usually 4 pieces each). LX07 There may be rubber-stamped screws in the models -- don't lose them.
• 📏 Check the sealing gums around the speakers. If they're hardened, they should be replaced (Article: XM-DMP-003).

Note the speaker markings: Redmi TV Soundbar often uses components from AAC Technologies or Goertek. If you’re planning to replace them, write down a model (e.g., AE40-8Ω-2W) to help you pick up your own.

⚠️ Warning: If you notice darkened areas or the smell of burning on the board, it is a sign of a broken transistor (often TDA7492 or TPA3110). In this case, disassembly should take place in a well-ventilated room: the fumes from the overheated elements are toxic.

Step 3: Diagnostics and Cleansing Internal Components

Now that all the ingredients are available, you can start with diagnostics or preventive cleaning, and let's start with the simplest one: dust removal.

1. Use a compressed air cylinder (hold it vertically to avoid liquid ejection!) and direct the jet at a 45° angle to the board.
2. To remove the sticky dirt from the speakers, use a cotton swab dipped in isopropyl alcohol. Don't press the diffuser!
3. Clean the oxidized contacts on the board with a washing eraser (yes, regular stationery!) This is safer than sandpaper.

If the purpose of dismantling is repair, pay attention to:

• 🔍 Capacitors: bloated or leaky need to be replaced. Redmi TV Soundbar often fails 1,000 μF × 16V capacitors.
• 🔥 Resistors: Darkened or burned, they say they're going to surge. Check the power chain.
• 📶 Antenna module (if any): In Bluetooth models, wiring can be detached from the board.

💡

If the soundbar doesn't turn on but the light flashes, check the fuse on the board (usually 250V 1A).It can be temporarily closed with thin wire for the test, but don't leave it that long!

Step 4: Replacement of speakers or amplifier

If the diagnostics showed a malfunction of the speakers or amplifier board, they can be replaced yourself. For Xiaomi Redmi TV Soundbar, the following analogues are suitable:

When you change speakers, keep an eye on the polarity of the connection: red wire is +, black wire is -. If you confuse it, the sound will be muffled.

1. Solder off the old board, starting with large components (capacitors, radiators).
2. Install a new board by combining screw holes. In LX07 models, you may need to rework the case with a file.
3. Before rationing, get the contacts - this will prevent cold rationing.

Step 5: Reverse Assembly and Testing

The Redmi TV Soundbar is built in reverse order, but there are some nuances:

1. Make sure all plumes are tightly connected – even a small backlash can cause signal loss.
2. When installing the cover, start on the detachable side (where HDMI/Optical), then snap the remaining locks.
3. If the cover does not sit tightly, check if the speaker seal or wire interferes.

Critical: Before final assembly, test the soundbar without a lid!

• 🔊 All speakers (is there silence in one channel)
• 🔄 Switching modes with buttons on the body.
• 📶 Stability of Bluetooth connection (if there is a module).

If everything works, close the case carefully. For additional fixation, you can use 3M double-sided tape (but not glue!).

💡

The most common build error is pinching the plumes! This leads to broken buttons or flashing lights. Always leave a little backlash (1-2 mm).

Frequent problems after disassembly and their solution

Even with a careful disassembly, there can be problems, and here are the most common ways to fix them:

If the soundbar is not determined by HDMI ARC after assembly, try:

1. Reboot the TV and soundbar (unplug for 1 minute).
2. Reset the sound settings on TV (in the Settings menu → Sound → Reset).
3. Update the soundbar firmware through the Mi Home app (if supported).

FAQ: Answers to popular questions