LCD screen maintenance tips common sense
"Non-burning, nicotine for users, low tar content. As the heating temperature (below 500℃) is lower than the combustion temperature of traditional cigarettes (600-900℃), the harmful components produced by tobacco high-temperature combustion pyrolysis and thermal synthesis are reduced, and the release amount of side-flow smoke and environmental smoke (second-hand smoke) is also greatly reduced."
Heating non - combustion products are electronic devices containing tobacco. When you heat them, they produce a nicotine-containing vapor that you can inhale. Hnb Device Oem,Hnb Device Patent,Hnb Device,Hnb Device For Sale Shenzhen MASON VAP Technology Co., Ltd. , https://www.cbdvapefactory.com
1, LCD screen interface and screen line type LCD screen interface is divided into 60HZ and 120HZ and higher 200HZ, 240HZ. Different frequency drive boards are different. The interface mainly has 120 PIN screens, 30 PIN clips, 51 PIN clips, 51 PIN and 41 PIN double clips.
Screen line type: single 6, double 6, single 8, double 8. Here 6/8 refers to the number of screen signal groups. 4 groups are single 6 and 8 groups are double 6.5 groups and single 8/10 groups are double 8 screen lines. A higher number is temporarily on the market. Note: The screen line is divided into left single/double 8, or right single/double 8. That is, the power supply location is different, and the signal sequence is different.
2, LCD resolution
1024X768 is a common 15-inch display
1280X1024 common 17 inch / 19 inch 4:3 kind of display
1366X768 Common 15.6-inch low-divided screen, 18.5-inch, 26-inch, 31.5-inch (common TV 32-inch)
1440X900 Common 19-inch display, special 1680X1050 or 1920X1200.
1920X1080 is usually 37 inch, 39 inch, 40 inch, 42 inch, 46 inch, 50 inch, 55 inch, 60 inch, 65 inch and so on.
3, LCD screen (screen line power supply)
Notebook screen 3.3V / display screen 5V / TV screen is generally 12V. The special 27-inch has a 5V power supply.
4, point screen idea to get the LCD screen first to confirm the resolution, power supply, backlight voltage (LCD TV is 24V), after confirming the above part, select the driver board, connect the various power lines, screen lines (check the uncertainty) Use a digital multimeter to measure each set of data lines, the resistance value of the diode is about 100 ohms, and each group is no more than 10 ohms. The red line of the power supply is not connected to the ground. After confirming the above OK, power on the corresponding resolution software. A motherboard that has been software-required is not required.
5, after the TV board is written, the boot color is wrong, adjust as follows:
6, LCD TV switching power supply PIN pin definition When using the high-definition driver board, you only need to connect these definitions to the same foot.
7, high voltage board interface definition
24V GND Switch BLON Brightness Adjustment ADJ or DIM
Connect 24V to the power board, and GND to the power board, switch and brightness adjustment to the relative position of the motherboard. In the modification, the brightness is dark, and the brightness adjustment (disconnection) can be removed.
8, LCD TV failure judgment First confirm whether the power supply is normal, whether the motherboard is normally turned on, whether the screen power supply is delivered.
9, modified remote control receiver in the 5V power supply foot plus a 4.7UF / 16V or so capacitance can greatly improve the remote control effect. Connect the corresponding pin to the motherboard, the indicator red RED, the green light GRN intermediate pin GND.
They are different from traditional cigarettes and work by heating tobacco to a very low temperature. Tobacco is heated to 350 ° C in a heat-incombustible device, while traditional cigarettes burn at up to 900 ° C.
Still, the temperature at which non-combustion products are heated is high enough to vaporize and inhale harmful chemicals.
Although both are electronic devices, heated non-combustible products are also different from e-cigarettes or steam devices. These usually use chemical liquids and do not necessarily contain nicotine. E-cigarettes tend to heat liquids to around 250 degrees Celsius to produce vapor.