Repair of Panasonic RP-HC500 headphone

[kahman]

We have a dead RP-HC500 ANC headphone. The power LED does not illuminate which leads me to suspect a power problem. Naturally, Panasonic denies the existence of a repair manual. Does anyone have any experience in this domain?

 

[moongre]

I have same problem, same model. Did you ever resolve this issue. If so, How? Thanks