User manual NAD C540

[. . . ] Warning: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. The lightning flash with an arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shcok to persons. If an indoor antenna is used (either built into the set or installed separately), never allow any part of the antenna to touch the metal parts of other electrical appliances such as a lamp, TV set etc. Any outdoor antenna must be located away from all power lines. [. . . ] It may be connected to any digital signal processor that conforms to the Sony/Philips (SPDIF) standard. To use the digital output, connect a cable from this NAD 4 In some CDs, at the manufacturer's option, tracks may be sub-divided into sections identified by Index numbers. This player does not display Index numbers. Normally this display shows the time elapsed since the beginning of the current track. Using the TIME button you can switch the display to show the playing time remaining to the end of the disc. When you load a different disc and use the OPEN button to close the disc drawer, the display shows the number of tracks and the total playing time of all the tracks on the disc. A right-pointing arrowhead , located near the left edge of the time display, glows during PLAY. Two vertical bars indicate that the player is in PAUSE. In STOP mode the display reverts to showing the number of tracks and total playing time of the disc. `no diSC' glows in the display when no disc is present or when you load a disc that cannot be read (because it is dirty or is upside-down). REPEAT 1 glows in the center and upper-left corner during repeat-play of a single track. REPEAT ALL glows during repeat-play of the entire program or disc REMAIN glows in the lower-left corner of the display if you have pressed the TIME button to show the remaining time in the disc. As each track is played its number is blanked out on the Track Listing, giving a simple indication of how much of the disc has been played and how much remains. the display shows up to 16 numbered tracks. OVER glows in the bottom center area of the display if the loaded disc contains more than 16 tracks. An infrared sensor, located at the right-hand portion of the display window, receives commands from the remote control. There must be a clear line-of-sight path from the remote control to this window; if that path is obstructed, the remote control may not work. PLAY to close the drawer this display is skipped, and play commences immediately at Track 1. This dual-function button alternates between starting and stopping playback. Press to start play or to resume play after Pause. During play, press this button to stop playback temporarily, keeping the laser at its current position on the disc. To resume playback at the exact point where it stopped, press PLAY/PAUSE again. [. . . ] But a circular scratch that follows a data track may damage such a long continuous segment of data that it cannot be corrected. The Compact Disc player uses a solid-state semiconductor diode laser, mounted on a tracking servo mechanism, to play the disc. The laser illuminates the track of microscopic pits representing the digital data bits, while photo-diodes detect the reflected illumination from the disc and convert it into an electronic signal which is then decoded to recover the musical waveform in each stereo channel. You cannot see the laser operating, because it operates at wavelength of 7800 Angstroms, which is in the infrared and thus invisible to the human eye. [. . . ]