Xiaomi Mi TV V9P β popular smart TV model with 4K-It's a resolution, but even this reliable device sometimes requires disassembly, whether it's to clean the dust, replace the speakers, or repair the matrix, but if it's not properly dismantled, it can damage the plumes, lose the warranty, or even cause the equipment to fail. This article provides a step-by-step guide with photos of key steps, a list of necessary tools and critical warnings that 90% of users ignore.
The V9P disassembly is different from other Xiaomi models: it has a different rear mounting system, a special stand design and the specific location of the plumes. We took into account all the nuances, including hidden latches that often break when you sloppy open, and problems with unplugging the gaskets when you reassemble. If you have never taken out the TVs, start by examining the structure of the case and then pick up the screwdriver.
Preparation for disassembly: tools and security measures
Before you start, make sure you have everything you need. Xiaomi V9P has brittle plastic latches and thin plumes β without the right tools, the risk of damage increases 3 times. Here is the minimum set:
- π§ Screwdriver. T5 and T8 (for back-cover screws and stand)
- π Plastic mediators (2-3 pc, thickness 0.5 mm) to separate latches
- π§² Magnetic mat or screw container (so as not to lose small details)
- π¦ Lantern or table lamp (lighting for working with plumes)
- π§΄ Alcohol wipes (to clean contacts if necessary)
- π± Smartphone for photography (fix the location of the plumes before disconnecting!)
Pay special attention to the organization of the workspace. Put the TV screen down on a soft surface (towel or foam) to avoid scratches. If you are disassembling a V9P for repairing the matrix, prepare an antistatic bracelet in advance or at least regularly touch grounded metal objects to relieve static electricity.
β οΈ Attention: Some screws in Xiaomi V9P If you confuse them when you build them, you can damage the board or the screen. Stack the screws in groups and sign them (e.g., "stand", "cover", "matrix").
Removal of the stand and back cover: a step-by-step process
Start by removing the stand, which is the easiest step. Turn the TV over and find four screws under the rubber plugs (they are located at the corners of the stand). Use the T8 screwdriver to unscrew them counterclockwise. Take the stand off carefully and put it aside.
Now, to the back cover, the key is sequence. In the V9P, the lid is mounted on 12 T5 screws (around the perimeter) and 8 plastic latches (on the sides). First, unscrew all the screws, but don't remove the lid immediately! Start at the top and gently blow it up with a plastic mediator, moving clockwise. The latches are fragile, if you pull the lid by force, they will break.
Unscrew all 12 T5 screws
Push the cover with a mediator from the top corner
Gradually crack all 8 latches around the perimeter
Raise the cover by 3-4 cm and fix (do not remove completely!)
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When the lid is lifted, you'll see the internal structure. Don't rush to take it off completely -- take a picture of all the plumes and connectors first. The V9P has 3 main plumes: power, matrix and motherboard, which are easily confused when you build them back.
β οΈ Attention: In the lower right corner, there's an infrared sensor under the lid, and if it's damaged, the TV will stop responding to commands from the remote!
Disconnection of plumes and dismantling of the motherboard
This is the most critical step. In the Xiaomi V9P, the plumes are attached in two ways: latches (they need to be lifted up) and connectors (they are carefully pulled out without exertion). Start with the matrix plume, which is the widest and is located in the center. Raise the black latch up (it fixes with a characteristic click), then smoothly pull out the plume.
Next, turn off the power plume (usually red or orange) and the motherboard plume. It is important not to confuse them when you reverse assemble them - in the V9P, the power plume has an additional contact to protect against improper connection, but if you use force, it can be damaged. After turning off all the plumes, unscrew the 4 screws that hold the motherboard (they can be hidden under stickers!).
| plume/connector | Location. | Type of attachment | Notes |
|---|---|---|---|
| Matrixes | Centre, under a metal frame | Latch (black) | The widest, the most fragile |
| Nutrition. | Lower left corner | Connector (orange) | Has additional contact |
| Motherboard | Top right corner | Latch (gray) | Connected to Wi-Fi antenna |
| Dynamics | On the sides, under the metal screen | T5 screws | Could be glued. |
Once you've dismantled the board, check it for swollen capacitors or oxidation, and if you notice black spots or white plaque, it's a sign of overheating or short circuit, then cleaning it up won't help, you'll need a diagnostic at the service center.
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If the plume doesn't come out of the connector, don't pull it by force! First, check if the latch is fully raised. 80 percent of the time, the problem is unopened latching.
Dismantling the matrix and dynamics: difficulties and risks
The matrix in the Xiaomi V9P is attached to a metal frame on 20 T5 screws and additional double-sided tapes. To remove it, first unscrew all the screws around the perimeter, then gently tuck the matrix with a plastic mediator, starting at the top corner. Here the main danger is damage to the polarization layer, which is located directly under the glass. If you see rainbow divorces, this is a sign of microcracks.
The speakers in the V9P are often glued to the body with heat-glue. To remove them, warm up the dryer (temperature no higher than 60 Β° C!) of the mounting area for 1-2 minutes, then tuck the speaker with a mediator. Be careful: thin wires are under the speakers that are easy to break. If the purpose of disassembly is to replace the speakers, prepare new ones at 8 Ohm/20 W (the original parameters for this model).
What if the matrix does not move after spinning the screws?
After removing the matrix, you will get access to the backlight (LED-In the ribbons. V9P It's divided into 4 zones, each controlled separately, and if the backlight flashes or doesn't turn on, the problem may be in the backlight driver (located on a separate board next to the power supply).
Cleaning internal components: what and how to clean
The main reason for the Xiaomi V9P disassembly is the accumulation of dust that leads to overheating and artifacts on the screen. Start with the radiators (they are located on the motherboard and power supply). Use a soft brush and vacuum cleaner with little power (without touching the details!).
- π₯οΈ Processor (large radiator with thermal paste)
- π Power supply (dust here can cause short circuits)
- π Dynamics (dust accumulates on magnets)
- π‘ Wi-Fi antenna (its contacts are often oxidized)
To clean the contacts, use an alcohol wipe or cotton swabs dipped in isopropyl alcohol (concentration 90% or higher). Under no circumstances use water or household detergents - they leave a film that conducts current! After cleaning, let the parts dry completely (at least 30 minutes).
If you notice that the thermopaste on the processor has dried up (it becomes hard and cracks), it needs to be replaced. For the V9P, a paste with thermal conductivity of 5 W/mΒ·K and higher (for example, Arctic MX-4 or Noctua NT-H1) will suit. Apply it in a thin layer (no more than 0.5 mm thick) - excess paste can leak to other components.
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Cleaning the TV dust reduces its temperature 10-15Β°C, which extends the service life LED-lighting and electronic components on 20-30%.
Reverse Assembly: How to Avoid Mistakes
The Xiaomi V9P should be assembled in reverse order, but with a few critical nuances in mind. First, check for integrity before connecting the plumes: even microcracks can lead to artifacts on the screen. Second, make sure that all the thermal gaskets (grey or black rubber strips) are in place - they are responsible for the heat sink.
When you install the matrix, make sure that the plumes don't twist and get under the mounting screws. The V9P has one trick: the matrix plume should be slightly stretched (but not squeezed!). If it hangs, vertical stripes will appear on the screen. After assembly, don't twist the screws of the back cover right up to the end - check the TV's performance first.
- β‘ Connect the power and check if the TV is turned on.
- π Check the lighting (whether there are dark spots or blinking).
- π΅ Test the sound at different volume levels.
- πΆ Make sure that the Wi-Fi and remote are working.
If everything is working properly, spin the remaining screws and install the stand. If you find problems (for example, there is no image, but there is sound), then there is a mistake with the matrix plumes. Don't panic - go back to the connection stage and check for fixing the latches.
β οΈ Note: After assembly during the first 2-3 Watch the temperature of the TV for days, and if the body heats up more than usual, you forgot to connect the cooler. V9P it is located next to the power supply unit or the heat paste is applied incorrectly.
Common Mistakes and How to Avoid Them
Even experienced users make mistakes when disassembling Xiaomi V9P. Here are the most common of them and ways to prevent them:
- The damage to the matrix plume is due to a sharp pull. Always lift the latch to the end and pull the plume smoothly, without distortion.
- Loss of screws -- the V9P has 32 of them of different lengths -- use a magnetic mat and sign groups.
- Forget to turn off the power -- even when it's off, the capacitors in the power supply can store charge. Always take the plug out of the socket!
- The fall of dust on the optical layers of the matrix - after removing the matrix, immediately cover it with a clean fabric.
- Incorrect installation of heat pads - they should fit tightly to the radiators, without gaps.
Another common problem is the extraneous sounds after assembly (squeaking, crackling), which means that the cable is clamped somewhere or the matrix is installed incorrectly.
- π Does the tails touch the back cover.
- πΊ Is the matrix correctly fixed (all screws are twisted, but not pulled over).
- π‘οΈ Did not get dust between the layers of the matrix (this can cause creaks when heated).
If the TV doesn't turn on after assembly, but the light is on, the problem is most likely in the power supply or motherboard. Check if you forgot to plug in the power plume or if the capacitors were damaged during cleaning.