“Lines”, “door”, “advertising remains”… When the liquid crystal, different styles and models of plasma TV gradually filled with consumer line of sight, but another “random” also unceasingly, the product quality disputes.
Recently, reporters from city quality complaint reporting 12365, the center of the product quality complaint set up, especially some more related standards, including lack of national unity LCD TV, which also guarantees policy constraint for complaint handling brings difficulties.
A: the focus of “standard” like a
Reporter discovery, the majority of television quality complaint always leave “standard” two characters. Due to the lack of standard, there is TV disputes, smell, the current existing color LCD screen, shell leakage crack. What is worth mentioning, screen rilliant “in standard permissible really affect consumers use the prominent question.
Experts say, cause a bad TV may have multiple aspects of current transformer of factors, including the problem, Line grounding, Damp, leakage current circuit, Signal input shielding, contact is bad, Congenital design, or a fault circuit, so need through professional inspection shall be confirmed. While screen rilliant “is actually have related standards, plasma screen, can appear on the LCD panel, how does not shine defects and not extinguish at have specific provision.
“It doesn’t smell” for TV too common, the so-called “peculiar smell, mostly due to the new” appear overheated circuit after chemical or plastic flavor. Phenolic compounds on the board, through the heating, and housing will be volatile adding plastic additives is difficult.
According to the understanding of the relevant standards can smell, the reference of domestic electronic information products management measures of pollution control. This regulation, electronic information products designers in design of electronic information products, meet the technological requirements in the premise, should use avirulent, harmless or low toxicity and harm, easily degraded and easily recycled options. Among them, 6 kinds of harmful substances (including hg, pb, etc.) have corresponding limits. However, it is far from the harmful material including the material.
In addition, at present, the television sets to jump conversion time intervals and lack of relevant standards. Analog TV sets to convert time intervals not clear. For digital TV, TV conversion sets of interval has been formulated in voluntary standards, but so far there are no published.
Focus on two: “concept” dazzling
At present, many TV manufacturers are continuously introduce all kinds of products, high-definition television “concept”, environmental protection, television, let consumer feel dazzling.
What is high definition televisions? Hd television resolution? Actually, the resolution is a comprehensive index, index and display the brightness, contrast, white balance, color, clarity, static coverage motion image trailing time have a certain relationship.
Generally speaking, the more 1366 x 768 resolution TV (display), provided the circuit design does not have a problem, can achieve the definition of requirements. The resolution of 1280 x 720 reluctant to television. Experts told reporters, “simple formula, a high-definition signal receiver + + hd high-definition monitors = high-definition television”.
Often reflects the TV doesn’t buy consumers in the supermarket, sell in the prototype shows clearly. Experts point out that, in the supermarket, manufacturer specially produced for the program for high-definition effect reflected color is gorgeous, activity (image), so the prototype is slow in the family, seems clear watch, signal is a common standard definition TV signal, or common DVD program, get hd displayed.
Tip: to develop maintain good habits
Expert clew, LCD maintenance must notice moistureproof. If the water has entered the screen, as long as the screen in a warm place, such as lamp, will evaporate moisture gradually.
At the same time, LCD is weak, should prevent collisions screen, avoid bad point can be formed, with soft cloth to wipe gently on cleaner screen. Don’t make the LCD screen on a long time, if not in, or put it off for good, or will be lowered brightness. LCD pixels by lots of LCD building, long time continuous use, can make the crystal aging or burn out. Damage if it happens, is permanent and irreversible, so to this problem will cause enough attention.
The expert points out, in plasma screen, to prevent heat, dust. Long-term use of plasma TV cooling and ventilation is very important, dust is undoubtedly the enemy, not only influence viewing effect and health, but also can become plasma screen of invisible killer. The temperature rise and accumulation in the plasma screen will be serious, and accelerate ageing of static dust will harm the plasma screen.
What is worth mentioning, don’t let the plasma screen display images at the same time, the screen burns. Moistureproof also very crucial, often should open and maintain the machine working environment, relatively dry, don’t let water into the body. Wipe the plasma screen cannot use water. Family is the dust cleaning plasma screen will choose water is the most commonly used as a cleaner, but due to buy a new plasma TV, some users will be too frequent cleaning plasma screen, it intensifies the dust of plasma screen of the water damage. Water scrubbing plasma screen will leave as grease spots, or is the same, the damage of water is permanent. Plasma screen can use special cleaning liquid, or use the soft dry cloth wipe gently. Regular cleaning dust to have a degree, too frequent, broth colony.
Reporters also learned to television, testing, including many contents: safety, emc, function and performance (sound, light, electricity), environment, etc. If all to test fee is more expensive. For these items are factory test. Consumers can find different problems, according to certain items specified in these projects are tested. According to the different consumers can find some problems, specifying the test items.
