Radio, Stereo, and Compact Disc: Description and Operation

System Diagram:

SYSTEM DIAGRAM

SYSTEM DESCRIPTION

1. COMMUNICATION SYSTEM




a. Components in the audio system communicate with each other through the Audio Visual Communication-Local Area Network (AVC-LAN).
b. The receiver has a resistance of 60 to 80 Ohms, which is necessary for communication.
c. When a short circuit or circuit breakdown occurs in the AVC-LAN circuit, the audio system does not operate normally due to the communication cut off.

2. DIAGNOSIS FUNCTION
a. The audio system has a diagnosis function. The diagnosis result is displayed on the LCD of the radio receiver.
b. A component code (physical address), or 3 digit code (in hexadecimals), is set for each component of the AVC-LAN.
c. The logical address, or 2 digit code (in hexadecimals), is set for each function and component unit in each component of the AVC-LAN.

3. COMPACT DISC PLAYER
a. The Compact Disc (CD) player uses a laser beam pickup to read the digital signals recorded on CDs and reproduce analog signals of music, etc. The CD player can play 12 cm (4.7 in.) and 8 cm (3.2 in.) discs.

NOTE: Never disassemble or apply oil to any part of the player unit.

Only insert discs into the CD player.

CAUTION: Do not look directly at the CD player's laser beam. Be sure to only operate the player as instructed.

4. DIAGNOSTIC TROUBLE CODE CHART




a. RADIO RECEIVER ASSEMBLY (Physical address: 190) [AUDIO H/U]

HINT: Titles for each unit below are stated in the following order: part name (physical address) [name indicated by DTC].

Part 1:

Part 2:

1. Logical address: 01 (Communication control)

HINT: Methods used to verify the cause of the problem are listed in order of probability in the verification column.




2. Logical address: 62 (CD): 63 (CD changer)

HINT: Methods used to verify the cause of the problem are listed in order of probability in the verification column.




3. Logical address: 61 (Cassette)

HINT: Methods used to verify the cause of the problem are listed in order of probability in the verification column.

b. GATEWAY ECU (Physical address: 1C6) [G/W]

Part 1:

Part 2:

1. Logical address: 01 (Communication control)

HINT: Methods used to verify the cause of the problem are listed in order of probability in the verification column.

c. STEREO COMPONENT AMPLIFIER ASSEMBLY (Physical address: 440) [DSP AMP]

Part 1:

Part 2:

1. Logical address: 01 (Communication control)

HINT: Methods used to verify the cause of the problem are listed in order of probability in the verification column.




5. INSPECTION LIST FOR DEVICE INDICATED BY SUB CODE

HINT: Methods used to verify the cause of the problem are listed in order of probability in the verification column.