How do I fix my Panasonic TH P50VT3 tv display and japanese language?

Hi, I had picked up this 50in Panasonic TH P50VT3 plasma TV from Japan a year back. I was a sucker for large screen plasmas and when i saw this i was blown. The problem is I live in India. Therefore the language and the power rating was the initial hurdle. I purchased a step down convertor for the set and kind of managed to get around the Japanese menu with some r&d. But I was never able to fine tune as there is no proper japanese to english manuals online. The second and more recent problem was a display issue.

I hadn't used the set for a month as i was travelling. On my return. I found out that the TV switches on (green light comes on) but it fails to offer any display. At best i get some junk colors here and there and then that too goes off after a second.

I need your help to fix two things.

#1) How do I get my display working?

1. 2) How do i change the japanese menu to english?

Thank you iFixit:) Hope to hear from you soon.