Multi-function sound control circuit

Multi-function sound control circuit

The AC power source is introduced into the electric field through the 5A fuse F1. One end of the AC power line is connected to one end of each AC power socket, and the other end of the AC power line is connected to each SCR (Silicon thyristor), and each SCR is connected. The other end of each AC power outlet.
The audio signal from the stereo speaker is input to the circuit through the transformer T1. The transformer T1 has a plug-in impedance of 560 Ω and a secondary impedance of 8 Ω. The 8 Ω end of the T1 is connected to the speaker, and the 500 Ω end is connected to the potentiometer P1.



EDP Cable

EDP is gradually replacing the existing low voltage differential signal (LVDS) transmission interface, especially in FHD(1,920x1,080 or 1,920x1,200) or panel (UHD) that exceeds FHD resolution.


EDP can dynamically control the refresh frequency of the display panel, which is designed to reduce power consumption when displaying a still picture. In still images, the panel refresh rate can be reduced from a normal 60 images per second to any frequency that does not produce abnormal or flickering images. Reducing the refresh rate reduces power consumption and extends battery life, with some panels down to 40fps or less.


Another application that USES different display refresh rates is when playing movies or games. In game mode, the screen is often calculated by the graphics computing engine before being displayed, and there will be a delay time in the middle. In this case, the refresh frequency of the panel can be dynamically adjusted to make the screen display smooth, without distortion and delay. When playing the movie, the 24FPS picture can be adjusted to 48FPS, so as to eliminate the situation that the picture is not smooth due to the 3:2 pull-down in the traditional 60FPS mode.

Through AUX channel, eDP can control the following functions of the display panel:


Turn on or off the backlight


Backlight brightness adjustment and backlight PWM frequency are adopted.


Turn on or off dynamic backlight adjustment.


Color engine, jitter algorithm or insert black screen for adjustment.

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Tonya Display Limited , https://www.tydisplay.com