ขาย ไดร์ฟเวอร์บลูทีวีจอแสดงผล Lcd 14-42 Led ราคาที่ดีที่สุด

Features: 1. Universal LED LCD TV backlight constant current board. 2. Realize the 10-1000MA current setting. 3. Support 14-42 inch LCD TV backlight. 4. The LED light bar voltage is automatically adapted to 88V or less. 5. Suitable for players DIY operation, fix TV backlight problem. Specification: Color: green Support size: 14-42 inch Input: 11-28V Output voltage: 15-88V LED strip adaptive Current: 10-1000MA can be set Size: 9.4 * 5.5 * 1cm / 3.7 * 2.2 * 0.4in Weight: approx. 31g Package list: 1 * Board Precautions: 1. You need to have a certain basic knowledge of electronic and electrical engineering in the physics department, familiar with or probably understand the working principle, characteristics, representation symbols of various electronic components. 2. Need to have a clear understanding of the core components of liquid crystal displays, LCD TVs and other products (such as which parts are usually composed of products, where is the power supply, where is the main control board, where is) 3. The common electronic symbol code of the backlight board is as follows: VCC: power supply voltage positive, circuit supply voltage (voltage is usually 12V or 24V) b. ON/OFF, ON, EN, ON_BL, etc.: switch pin, switch signal pin (voltage range is usually between 2.5V-5V) c. PWM, PDIM, VDAJ, BL-PWM, etc.: brightness adjustment feet or dimming feet. (Dimming will have two modes, one is digital mode-PWM, the other is analog dimming-DC PWM is called pulse width adjustment, it produces a rectangular square wave signal, the frequency is generally 200HZ-2KHZ, the voltage amplitude is usually 3.3V, PDIM is shorthand for English, and Dim is dark meaning vocabulary probably means "brightness". Analog dimming is performed by DC voltage, usually by directly supplying 0V-5V DC voltage to the pin to control the brightness. ) GND: ground (power supply negative) LED+: LED (light bar) positive LED-: LED (light strip) negative The above symbols contain most of the commonly used codes on the LCD motherboard and the backlight board. It is not wrong to connect them according to the respective codes. Common problem: Question 1: Can a constant-current driver board of a certain size TV be used instead? A: As long as the working voltage of the light bar is below 80V, no matter how many inches of TV, this product can light it. Note: What is said here is just lighting, not to say that it is suitable. The best way to get the exact answer is to provide the backlight module parameters of the panel (the working voltage of the light bar, the rated current, etc.). If we can provide accurate data, we can do a "private customized" service.