I have a Samsung HT-D6730W received and it's a 7.1 channel system. All speakers connected to this receiver works fine except the center speaker. I tested the center speaker by plugging it into other front speaker pin and it works fine. So it's not a speaker issue. I also checked the center speaker pin etc. Everything looks good. Now I tried to disassemble the receiver and I see something weird. One of the inductor (L3001) (I guess it's an inductor. Some one pls confirm) which has "Center" markings on the PCB is sitting on the PCB in a slanting manner, whereas other inductors are perfectly okay. I have attached the pictures. Can someone pls help me here? Thanks!

 

Is there continuity between the two pins? Are the solder pads damaged on the backside? The inductor is just tilted due to poor manufacturing techniques. If Q1 is "yes" and Q2 is "no", then your problem lies elsewhere. This type of inductor is very resistant to failure. It looks like the speaker is amplified, so I suspect a power issue or a bad amp IC.

 

Thanks for your response. I will check the both Q1 and Q2 today and revert.

 

additionally.. you may be right. Because I see the red LED light which is turned on for all the six speakers in the PCB as in seen in the pictures. So I believe without the continuity it is not possible for that LED of the Center speaker series in the PCB to be turned on?

 

Ok i checked the continuity and circuit board for any damages ... everything looks ok. Do you know how to check the amp IC or power ?

http://download.samygo.tv/Documents/SM-HTE6730W.pdf

the main board on that document...