Playback malfunction

[Dodle]

I have a VF160 EX I mostly get along with.. Recently and for no apparent reason playback is lopsided to the left channel.. PHones & monitors.. right side has barely audible volume left seems normal.. anyone have a clue what might be going on here? Thanks
Dodle

 

[JimmyS1969]

Phones and monitors? How are your monitors connected?

 

[Dodle]

Powered monitors are connected with 1/4 in RCA lines L/R monitor outputs...

 

[Dodle]

Nothing fried.. Level meters show balanced signal L/R but the actual audio from the right channel is perhaps 5% of what the left side is.
Seems to be some kind of illusive digital glitch I don't understand.