In the last two years, 85 inches of screens have gone into ordinary homes, but many people have a question: will it be easier to get older? There is a multiplicity of stories on the internet, where it is said that the national production screen has failed in two to three years, and there is a perception that foreign brands must crush national production. Most of the assessments on the market are limited to comparison of the mass, partitions, refresh rates, and there is little talk about power panels, back-light drives, dispersive structures, which are hidden inside the backboards and determine long-term failure rates。
First, a key premise should be made clear: there is no absolute conclusion that a single 85-inch brand has the lowest three-year recovery rate. The standards for entry into the same brand, mid-end and flagship aircraft are very different. In combination with long-term home maintenance and a comparison of machines, one brand does not speak of the overall merits, the objective dismantling of tcl, haishin, the sony mainstream 85-inch internal design differences, the high level of failure, the identification of rumours and stereotypes, and a set of practical judgments for those who intend to go to large-screen television。
One: big screen failure is not the same logic as small sizes
The maximum pressure was concentrated in back-light modulations and power supply systems compared to 65, 75 inches in 85 inches. The size of the screen has increased considerably, the number of lamps has multiplied, and the output channels of the constant-flow drive have increased; the overall power consumption has increased and the power panels continue to carry higher loads. Accumulation of heat in narrow backboard space can accelerate the aging of the capacitation and drive chips if the dispersion plan is conservative。
Open industry monitoring data show that the overall average of three years of re-engineering of hardware in the mainstream brand has fallen to a low level in recent years, with large-scale batch failures virtually disappearing. It is not the brand logo that really opens the gap, but the two key points: first, the selection criteria for the various price-type units; and, second, the design of structures such as heat vents and circuit boards. The 85 inches of maintenance worksheets focused on three types of problems: backlight lamps or heliboard abnormalities, aging of the electric panels, activation of the dead machine at the high temperature of the main plate, and less damage to the screen panels。
Ii. Real response for material and maintenance of the major structure 85-inch
Start with the tcl mainstream 85-inch machine. The advantage lies in the supply chain of the pv panel, the stable supply of screens and the high degree of alignment with the serial panel programme. Dismantling the mid-end and the flagship type of aircraft reveal that the power plate, the back-light drive plate, is relatively loose, leaves a ventilated gap in the back, and the heat does not easily accumulate in a narrow area. Mini-led version has multiple backlight partitions, drive a group layout of chips, and a single chip load pressure is distributed。
Maintenance-level feedback, normal living room ventilation, with few backlighted large-scale damage work orders within three years; short panels concentrated on low-cost entry. In order to reduce the price, the entry-type circuit board is tightly organized, the filter-capacitation specifications are reduced, and partial aging of the power supply will accelerate after a long period of continuous operation. Another easy to ignore details is the fact that the tcl spare parts are of good common use, that after-sale sites in townships are regularly equipped with commonly used power panels, light-line spare parts and that there is a short waiting period for maintenance。
And look at the 85-inch main power series. Icsu has matured and has a longer maintenance cycle for system upgrades. Internal work, medium- and high-end circuit boards, etc. In a number of maintenance cases, a structural detail was found in which part of the old batch of 85 inches of dissipated heat vents fell in the direction of an opener. If the living room was damp, the floor moisture would easily follow the opener into the base circuit board, the main plate of the may rainy season was slightly increased in the probability of a flood failure, and the new cash machine type had been optimized。
The submersible points of the haisin national line are deep, and the county city has a good response rate, but the high-end special-type power supply, constant-flow drive boards are less available, often requiring the relocation of municipal warehouses and longer maintenance cycles. High failure points are similar to peers, and after a long period of high-lighting, the heating of the heating of the heliboard chips is evident。
Finally, the sony 85-inch machine. Sony did not produce the panels and purchased third-party screens with self-study microchips. The criteria for the selection of circuit plate elements are conservative, with the approximation, drive chips choosing a wider range of industrial tolerance temperature zones. Power power is set to remain sufficient to operate at full capacity over the long term. The number of hardware damage is small in the unit failure list, but the price of the whole machine is significantly higher than that of the national configuration。
It's two reality shorts. First, the number of backlighted subsectors is generally conservative, with the same price compared to national production, and there is a marked gap in the number of subsectors; second, the cost of spare parts is high, the cost of replacement of power panels, main boards after insurance has been passed, and the timing of spare parts transfers is longer. Many of the sony models were not indestructible, but hardware failures occurred later, but later maintenance costs were higher。
Three or four areas of widespread error, and no bias in the selection
Zone one: 85 inches of national production for 3 years. In real terms, the high incidence of malfunctions is concentrated on early start-up screens, brand entry payments. The mid-market, flag-based, home-lighted, driven programme has been optimized over time for almost three years, with three consecutive years of hardware failure not widespread, and new machines cannot be imprinted many years ago。
Zone 2: foreign brands don't need to be maintained for 10 years. The metaware is ageing, and the sony model is just a much more redundant element selection, with a slow rate of decay, and does not mean that it will never be bad. Long periods of closed-in-place installation, with no spread of heat, can also cause power and backlight failure。
Mistake three: only the backlight partition can determine durability. The size of the partition affects the quality of the painting and is not directly related to durability. Even in the case of multi-thousands of sub-district mini-leds, the rate of long-term ageing increases if the driver's layout is crowded and spread. The selection cannot single-handedly focus on the zoning, refreshing ratio parameters。
No distinction is made between the installation of wall walls and the lifetime of stand-up positions. Eighty-five inches were thick, the walls were attached to the wall, there was almost no ventilating gap in the back and there was a build-up of heat. Many of the servers were fitted to a close wall with a zero gap. Practically advised that the back panel behind the wall should leave at least 8 to 10 centimetres of thermal space outside the wall。
Iv. The method of internal selection of 85-inch television by the maintenance master
In order to avoid the habit of looking only at parameter lists, priority is given to three points, which can also be used by ordinary consumers。
First, the same budget prioritizes power redundancy. Without reading the circuits, a simple comparison is made between two details: weight, two televisions of the same size, the overall mass is clearly light and the internal heat-dispersed metal parts, circuit boards are expected to be streamlined; and the supply rated power is viewed on the commodity details page, with less pressure for long-term work on the power reserve machine。
Second, be careful with the deep-seated zero-embedded. Many homes are designed to keep television and walls flat, with no gaps around them. There is no wind cycle, no heat discharge, long-term high temperature of power, backlights and aging. In order to be embedded, it is necessary to choose the plant's special design for thermal windway, with a ventilator on its perimeter。
Thirdly, there should be a clear line of location and no confusion between entry and flagship funds. The same brand, high-end and entry-type power panels, lamps, and heat-dissemination programmes are two sets of standards. You don't recognize a brand name, you default on the whole series。
V. Low-cost habits of longer life after delivery
Many of the failures are not faulty work done out of the plant, but a gradual accumulation of chronic misuse。
Do not fix the maximum brightness for long. The day-to-day visual brightness is moved to 40-60 to reduce backlight modulus pressure; it is open for four or five consecutive hours and can be shut down for 10 minutes to spread heat. The plugs are fitted to the extent possible with stabilization plugs, with high voltage in the old sub-regions, with instantaneous high voltage, with the condition of a simple steady pressure plug. Cleaning of the fuselage does not wipe the back plate with wet rags, and the flow of water into the internal circuit board accelerates the oxidation of rust。
Summary of text
There is no single brand with a minimum three-year back-up rate for 85-inch television. The tcl panel supply chain is stable and spare parts are searchable; there are multiple sub-points on sealine and long systems maintenance cycles; sony devices have a high level of redundancy, but the purchase and later maintenance costs are higher. What really determines long-term stability of use is the type of aircraft, the heat-dispersion structure, the manner of installation and daily usage habits。
The selection of 85-inch screens should not fall into one-size-fits-all converse thinking, be superstitious to foreign brands, and do not reject national production altogether. Discrepancies between the entrance and the medium-high-end machine types, heat dispersion and avoidance of close and tight wall installation can reduce the probability of late recovery. Power supply, heat-dispersion designs outside parameters are the key to determining the invisibility of long-term durability。
Which 85-inch tv you're using at home? How long has it been in use? When you're on the screen, do you give priority to painting or long-term durability? We welcome the sharing of real user feelings in the comment area。
