Hello from Greece !!!

This is a Voltage-controlled oscillator (VCO). Αn oscillator that its frequency is controlled using a voltage signal. The VCO described here provide both triangular and square wave output. The control voltage can be varied between 5 mV to 5 V, to produce oscillation frequency from 10 Hz to 10 KHz.

Can someone please explain to me briefly the operation of the circuit ?

thank you

[ATTACH]66020[/ATTACH]...

Good day everyone, I'm from Greece / Athens and i am new in this great forum !!!

I have an LCD + DVD F&U model FD19W 19'' inces TV and has a screen inverter failure. The screen gets very dark and the image on the screen becomes very faint, barely visible under a bright light.

I upload some pictures of the power supply board, so to have an idea…

I need to replace the faulty power supply unit of my Funai TV . Can someone suggest where I can get it from please ?

F&J LCD + DVD Model FD19W

serial number Power Supply...