I will have a little extra knowledge that I will be scared to use
By ALL means, DON'T do it if you aren't comfortable with it!
but sad to see looks like no settings to adjust the grey bars to black
It would be at the component level which would mean a circuit modification. Lucky there are schematics with this manual unlike the Mits!
Again , thanks for the complements. For those that have read this thread and the others like this one and say "so what, who cares about the service manual, I won't be doing any of that" (or words to that effect); first place, knowledge is power and the more you or the servicer has the more of a chance the problem gets solved sooner, and second; what if that servicer DOESN'T have the manual?
One thing that surprised me was the lower response from this thread over the Mits thread. I'm surprised that this technology doesn't turn as many eyes since the DLP in the Mits isn't really new (just the set from Mits). I guess JVC's name isn't in the mainstream HD display arena yet.