• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Fuzzy noise comes from Home theatre

Thread starter #1
I have a sharp ht cn400d home theatre, and that i lately noticed a high fuzzy noise(the noise that a radio makes when not connected to a antenna) comes from inside it(mainboard), and the same noise comes from the 5 audio output channels too. The home theatre does not play any music other than the noise, and also the noise increases when the volume is increased.

I observed from where the noise comes and im unable to figure out what component actually makes the noise and i have attached a picture of the particular area of the mainboard which makes the noise, I also attached the schematic diagram of the area that makes the noise

Please help me repair this, and give me a clue of what should i replace, the caps or the coils.... Please assist...thanks in advance

The service manual pdf link
https://elektrotanya.com/sharp_ht-cn400dvh-dve_cn500dvh-dve_sm.pdf/download.html
 

Attachments

Latest threads

EE World Online Articles

Loading

 
Top