Radio, Stereo, and Compact Disc: Description and Operation

AUDIO SYSTEM

RADIO WAVE BAND





The radio wave bands used in radio broadcasting are as shown in the chart.





SERVICE AREA
There are great differences in the size of the service area for AM and FM broadcasting. Sometimes FM stereo broadcast cannot be received even through AM can be received very clearly. Not only does FM stereo have the smallest service area, but it also picks up static and other types of interference ("noise") easily.


COMPACT DISC PLAYER
Compact Disc (hereafter called "CD") Players use a laser beam pick-up to read the digital signals recorded on the CD and reproduce analog signals of the music, etc. There are 4.7 in. (12 cm) and 3.2 in. (8 cm) discs available for the CD player.

HINT: Never attempt to disassemble or oil any part of the player unit. Do not insert any object other than a disc into the magazine.

NOTE: CD players use an invisible laser beam which could cause hazardous radiation exposure. Be sure to operate the player correctly as instructed.


COMMUNICATION SYSTEM
A. Components in the audio system communicate each other though AVC-LAN. (Radio receiver with CD changer control function)
B. The master component of AVC-LAN is the radio receiver assy with a resistance (60 - 80 ohm), which is necessary for communication.
C. When short circuit or circuit breakdown occurs in the AVG-LAN circuit, the audio system does not operate normally due to the communication cutoff.


DIAGNOSIS FUNCTION
A. The audio system has diagnosis function (The diagnosis result is displayed on the LCD of the radio receiver assy). (Radio receiver with CD changer control function)
B. The component code (physical address), or three-digit number (in hexadecimal) is set for each component comprising AVC-LAN.
C. The logical address, or two-digit number (in hexadecimal) is set for each function and component unit in each component.