I have lost audio on the right channel. I am only able to hear something if the volume is cranked up to the max. There has been an occasional normal response that is only short lived. I think there is a short in the speaker terminal, right channel. Has anyone on the forum had the same experience? On the other hand are there any suggestions on how to test the terminal or other steps to take. I have downloaded the repair manual. I don't think I will be able to do major service. Thanks.