In the first few days, the user brought a Changhong HD CHD30300 color TV three without, open the back cover to look at it, the pillow school C321 capacitor 1.5UF has been flowering, welding one with 1UF and 0.47UF one parallel replacement, next R464 resistance 15 ohm Also open the road, find it, change it, think that everything is fine, turn on the TV test machine, a cigarette is straight, quickly shut down, look at the 15 ohm resistor burned, the most careful look at the C422 two capacitors in parallel split, open and replace 15 ohm resistance, carefully check the pillow tube and other components without damage, and then test the machine, turn on the TV, 15 ohm resistor and smoke. I think about a cigarette, I have checked the related components, and there is no place to check. Is there a problem with the high voltage package? Remove it, first use the Bentley tester, and measure the current at 74mA, indicating that it is shorted. The most use of the self-made line tester with an oscilloscope, the measurement of the vibration has no vibration waveform, immediately in the online purchase of a high voltage package, the next day at noon, installed a new high pressure package everything is normal, below using Berry The tester is compared with the home tester, and the high voltage package is damaged and a new comparison chart.
The 7-inch tablet can be used as the golden size of a tablet computer. It is small and portable. It can be used at home and outdoors. You can browse the web, watch videos and play games. It is a household artifact. Although the size of the 7-inch tablet is inclined to the tablet, the function is more inclined to the mobile phone, so it can also be used as a substitute for the mobile phone. Compared with other sized tablets, the 7-inch tablet has obvious advantages in appearance and weight. Both the body size and the body weight have reached a very reasonable amount.
1.In appearance, the 7 inch tablet computer looks like a large-screen mobile phone, or more like a separate LCD screen.
2.In terms of hardware configuration, the 7 inch tablet computer has all the hardware devices of a traditional computer, and has its own unique operating system, compatible with a variety of applications, and has a complete set of computer functions.
3.The 7 inch tablet computer is a miniaturized computer. Compared with traditional desktop computers, tablet computers are mobile and flexible. Compared with Laptops, tablets are smaller and more portable
4.The 7 inch tablet is a digital notebook with digital ink function. In daily use, you can use the tablet computer like an ordinary notebook, take notes anytime and anywhere, and leave your own notes in electronic texts and documents.
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