No Sound Output from my VocoPro receiver

[Guest]

Hi, I own a Voco Pro DA-8900 Pro Digital Karaoke Mixing Amplifier. (Receiver)

Recently when I turned it on to listen to music, it only outputed sound
to left speaker but not to right speaker.


At first I thought the problems could be cable problem or my right
speaker is dead. So I tested by swapping right speaker to left
terminal of the mixing amplifier and vice versa, then I got sound from right
speaker and left speaker which was connected to right terminal of
amplifier had no sound. So I know that is not my right speaker or my
cable problems.


I did open the top case of the receiver to see whether there is any
component burned. So far, I dont see anything noticeable.


Please give me more hints so I can continue to troubleshoot my receiver.


Thank you.