Is there an FAQ showing how to check belts etc on this please? Or is a cog
not tight enough or engaging properly?

I have a DV-CP702 which is about ten months old and has played about 4 or 5
discs in total! Looking at the transport I can see the DVD being picked up,
something tries to spin it, I can hear the servo motor spinning but the disc
doesn't spin at all. Ultimately it gives up on loading any disc and tries to
move on to the next disc with the same result.