I wonder if anyone can help me, i just bought a kenwood NV600 from
ebay, it turns out the the cd stops playing after a few seconds -
sometimes 30 secs and displays the "no disk" error on the screen. If i
eject the cd and reinsert it plays for another 30 seconds or so. I
have done all the usual things like cleanign the lens with alcohol,
lubricating the transport bars etc, but it still has the same error. I
have noticed that there are 2 pots to adjust one on the laser assy and
one marked FE bias on the main board, not knowing what these are i
havnt touched them

Can anyone assist me after being ripped off on ebay?

Thanks