Entertainment Systems: Description and Operation

VIDEO ENTERTAINMENT SYSTEM DESCRIPTION AND OPERATION

REAR VIDEO SYSTEM OPERATION
The following section describes the operation of the rear video entertainment system.

The power function operates only when the ignition signal is present. The POWER button toggles the system between Off Awake and Auxiliary/Full Power modes. If the ignition signal is present and the power is on, the power remains on for approximately two seconds after the ignition signal is removed so that the system remains on when turning the key from run to accessory.

If the DVD player is in Auxiliary or Full Power mode and the POWER button is pressed, the current state of the player is saved and the system is put in an off awake mode.

Wake-up is achieved by 1 of 3 methods:
^ Pressing the POWER button or parental control button
^ Inserting a disc into the player (auto-play function)
^ Pressing the PLAY button, either DVD player or remote control, if a disk is in the player

If the POWER button is pressed, the wake-up operational mode is dependent on both the previous and current state of the DVD player. If a disc is in the player, then upon wake-up, the media automatically resumes playing from where it was when turned off. If the last mode was Auxiliary or if a disc is not present, then upon wake-up, the DVD player is placed in Auxiliary mode.

If the DVD player was actively playing a disc when the ignition was cycled and a disc is present when the ignition is cycled back on, the system enters an off awake mode and does not play the disc. The disc is played by pressing the parental mute button, the PLAY button on the DVD player bezel or remote control, or the POWER button on the DVD player bezel or remote control.

EFFECTS OF ELECTROMAGNETIC INTERFERENCE (EMI) ON THE VIDEO SYSTEM
Almost all electric or electronic devices radiate energy in the form of radio waves, also known as EMI. EMI can be produced from such thing as common residential TV antennas, personal hair dryers, microwave ovens, utility power lines, and cellular telephones and other communication devices in passing vehicles.

Not all devices produce the same level of EMI radiation some very weak, some very strong. However, under the right circumstances, some devices may emit enough EMI that it affects the rear video entertainment system. If the problem persists, check your surroundings for possible EMI sources, such as utility power lines. Wait until the vehicle is clear of the source and try it again.

REAR VIDEO SYSTEM DESCRIPTION
The rear video entertainment system is an integrated digital video disc (DVD) system mounted in the overhead console. The system is serviced only as an assembly. The system includes the following components.
^ A DVD player housed in the overhead console
^ An infrared remote control to operate the video functions of the DVD
^ A video display housed in the overhead console
^ Wireless infrared headphones

The video entertainment system can support up to 4 headphones: 2 wired headphones and 2 wireless headphones. Any stereo headphone or earphone with an 1/8 inch male plug may be used.

REAR VIDEO SYSTEM CIRCUIT DESCRIPTION
The rear video entertainment system has 3 external circuits, as follows:
^ The ignition 1 voltage circuit
^ The ground circuit
^ The ignition 3 voltage circuit