Dead
LV-ROM Player
We've skipped a few here, so let's fill in the missing details first.
Module N is the display keyboard, essentially the front panel providing the Eject and Standby button and array of LEDs
There is no module O, and Module P is the frontloader module, which we've already seen, controlling the disc tray eject mechanism.
Module R, shown here, is the drive processor which provides many processing functions including interpretation of commands from Module S, radial tracking and access, start-up sequence, standby and eject functions and diagnostics. The drive processing code is supplied on a EPROM on the module.