Description

Video System

NOTE:
A = Hardwired; F = RF transmission; I = CVBS; N = Medium Speed CAN (controller area network) bus; P = MOST; AE = LVDS; AG = Infra Red









Principles of Operation

Television
The television system has various levels of user control through the Touch Screen Display (TSD), the Integrated Control Panel (ICP) and the steering wheel switches. The system includes 6 analogue and 12 digital channel pre-sets. As with the audio system, the user can tune up or down through the channels and store a channel by a long press of the selected preset button. The system offers a choice of screen aspect ratios.
For the digital bands, the options available on the TSD are the correct aspect ratio for the broadcast and "zoom" which will fit the picture to the screen (no black bands). For analogue TV all aspect ratio options will be available including 16:9, 4:3 and zoom. The four antennas are used because the system is dynamic and each one is connected to an individual tuner. The TV module evaluates which antenna has the strongest signal and will use a combination of antennas to generate the TV image and sound. At any point in time the TV module is using either one or two of the antennas and it's tuners to scan the TV frequencies and generate an up to date channel list.
The television system is primarily controlled from the TSD and the ICP which are located in the center of the instrument panel and also the steering wheel controls. Control signals from the TSD are sent on the Media Oriented System Transport (MOST) ring to the TV module. The TV module uses a dedicated Composite Video Baseband Signal (CVBS) bus to transmit video signals to the TSD. Where RSE is fitted, the TV can also be controlled using the RSE remote control and the video output will be delivered to the RSE module via an Low Voltage Differential Signalling (LVDS) video link. The TV video feed is then forwarded on to the TSD from the RSE module via a CVBS output.
Control signals from the ICP and steering wheel controls are relayed on the medium speed CAN (controller area network) bus to the TSD. The TSD relays the control signals to the TV module on the MOST ring. The TSD is the bus master for the MOST ring and also hosts a gateway function between the medium speed CAN bus and the MOST ring.
The TV module audio output signals are sent on the MOST ring to the audio power amplifier for speaker output.

Rear Seat Entertainment (RSE)
The RSE module is connected directly to both rear RSE screens via a medium speed CAN (controller area network) link and a Low-Voltage Differential Signaling (LVDS) connection. Infra-red signals from the RSE remote control are received by the RSE screens and user requests are communicated via the medium speed CAN (controller area network) link to the RSE module. Video signals are communicated via the LVDS to one or both screens as requested.
The RSE module communicates with the audio systems via the MOST connection. Audio input from the Audio Video Input/Output (AVIO) panel is processed by the module and passed on the MOST ring to the audio power amplifier to allow audio output to be played on the vehicle speakers or on the wireless headphones.
Video input from the TV tuner and the AVIO panel is also processed by the module and passed to the two RSE screens and the TSD on separate video connections. The RSE module also controls the power supplies to the RSE screens and relays the infra-red RSE remote control signals received by the RSE screen infra-red sensors. The infra-red signals are passed from the RSE screens to the RSE module on a local CAN (controller area network) bus system.
A time limit operation is active when the ignition is off and the vehicle is unlocked (Power mode 4) and the system is manually switched on using the TSD. The system will operate for a maximum of ten minutes. The battery voltage is continually monitored by the IAM. If the IAM detects that the battery voltage has fallen to a predetermined level, the IAM will shut the infotainment system down to prevent further battery drain. Once the system has shut down due to low battery voltage, it can only be restarted when the engine is running and the battery voltage has risen above the threshold level for more than one minute.

Touch Screen Display









The Touch Screen Display (TSD) is located in the center of the instrument panel and is the driver control interface for the infotainment system. The TSD is connected to the MOST ring and communicates with the other components in the audio/infotainment system.
The TSD communicates with the RSE module and TV tuner via MOST ring. CVBS is used to transmit video images from/to the RSE module and TV module.
The TSD also provides driver display and control of the audio system, telephone, the rear view camera, proximity cameras, and the navigation system.
The systems are operated by a combination of the physical buttons located on each side of the screen and the 'virtual' buttons (icons) displayed on the TSD.
The TSD is an eight inch touch sensitive, 800X480 pixels LCD (liquid crystal display) WVGA screen. The dual-view TSD allows the front seat passenger to view television and video images when the car is being driven. The dual-view screen allows the driver to see the navigation or other system screens but not the TV or other video sources when the vehicle is moving. The screen can be switched between single and the "Dual-View Display" button on the TSD.

NOTE:
Due to legislation, certain markets do not receive this dual-view option. A single view display is available in these markets.
The dual-view TSD uses Parallax Barrier Shutter Technology to alternately hide and reveal columns of pixels to the left and right hand views of the screen. The display comes with a specially designed agar coating to help prevent sunlight bleaching.
Care should be taken with the TSD to ensure its correct operation:
- The screen should be cleaned with a lightly, water moistened cloth. Do not use chemical agents or domestic products to clean the screen or any part of the surround.
- Only use your finger to operate the touch screen. Ensure you only use one finger to avoid incorrect entries.
- A short light press of the touch screen is sufficient. Excessive pressure can damage the screen.

Rear Seat Entertainment Module





The RSE module is located in the RH (right-hand) side of the luggage compartment and manages the request signals from the RSE remote control.
The RSE module is connected directly to the following modules for the purpose of processing audio, video, input and output signals:
- TSD - DVD video from IAM to RSE screens
- Audio power amplifier - Process audio signals for output on vehicle speaker system or headphones
- TV tuner - TV signals processed and passed to TSD and RSE screens
- Rear screens/RSE remote control - process infra-red signals
- AVIO panel - process audio and video signals from remote source.
The RSE system consists of the following components:
- RSE remote control - locates in RSE remote control docking station in rear of floor console
- Two 8'' LCD video display RSE screens (mounted in the rear of the front headrests)
- DVD video player (located in the IAM)
- Rear AVIO panel connectivity - located in rear of floor console
- RSE module
- Two headphone sets (three for dual view vehicles).

Rear Seat Entertainment (RSE) Remote Control





The RSE remote control allows independent multimedia control for left and right rear seat passengers.
The remote control is a dockable unit with a small touch screen display and a number of buttons to control the audio/video functions. The remote control is stored in the rear of the floor console and, due to its location, the remote control cannot be used in the docked position (only handheld). When the unit is docked, charging is provided to the 3.7 volt 1200mAh Li-ion battery. When fully charged the remote control can have up to 3 hours 20 minutes of continuous use. From empty to 90% charge takes approximately 2.5 hours.
The charging is powered via 12V supply from the RSE module directly to the RSE docking station. If the battery charge becomes low, a message is displayed on the remote control advising to dock and recharge the remote control. The remote control has three power modes as follows:













The remote control allows selection of various entertainment system functions by displaying options on the touch screen. The options, when selected, activate menus displayed in the RSE screens, located in the front head restraints. The menus can be navigated using a five-way switch on the remote control. For example, the user can select and press an icon on the touch screen to activate a list of available radio stations in the RSE screen and then use the five-way switch to browse the list and select a radio station.
The remote control is powered by a rechargeable battery located in the rear of the control and is accessible by removing a cover secured with two screws.
The remote handset battery is inserted by the dealer prior to delivery as part of the PDI (pre-delivery inspection). A reset button, which restores the default settings, is located behind the battery cover.
When the battery is fitted or replaced, it is important that the battery cable routing is as shown in the below illustration. Incorrect routing will result in the cables being trapped by the battery cover. This can damage the cables and will prevent the cover seating correctly, which may prevent the remote control from being latched into the docking station.

RSE Remote Control - Battery Cable Routing





The remote control transmits an infra-red digital signal in response to operation of a button or soft key. The infra-red signal is received by a receiver sensor located on each RSE screen. The remote control also allows selection of an auxiliary input from the AVIO panel (video or games console) or selection of audio (radio or CD (compact disc)).
When docked, communication from the remote handset takes place via two data lines into the RSE module. This link also enables software updates and configurations sent from the RSE module, for example, a language change requested by the user. This link from the RSE module to the docking station is a basic two-wire interface designed for remote control data rates (approx. 38Kbit/sec.). It is protected against short to battery or ground on the output pin.
The RSE remote control can be used to control functions including radio, CD/ DVD, plug-in audio devices, and TV, by displaying options in the touch screen remote, which activate menus on screen in the headrest which are navigated using the five-way button switch on the remote. For example, the user can press a soft key in the remote to activate the list of available radio stations in the headrest display. The user would then operate the five way switch to browse the list and select from it.
As part of the PDI process an initial setup procedure for the RSE remote control should be carried out (language set up). This can be done with the remote control docked in the cradle. The battery must then be installed by the dealer. Situated behind the battery cover is a hard-reset button. Prior to customer handover it should be ensured that the battery is subject to at least a 50% charge cycle (minimum two segments of battery indicator).
When the RSE remote control is in the docking station, communication from the remote will take place via two data lines into the RSE module. This link will enable software updates and configurations sent from the RSE module, for example, a language change requested by the user. This link from the RSE module to the docking station is a basic two wire interface designed for remote control data rates (approx 38Kbit/sec.). It is protected against short to battery or ground on the output pin.
If the RSE remote control is used out of the docking station, then infra-red transmission takes place between the rear screens and the remote control. User requests are passed onto the RSE module to be processed via a private medium speed CAN (controller area network) link.

Digital Wireless Headphones









The WhiteFire(R) Infra-red headphone transmitter is located in the roof headlining near the interior lighting console assembly.
The transmitter transmits audio output for reception by the Whitefire(R) digital headphone for the front and rear seat passengers. The transmitter is connected to the audio power amplifier via a Low Voltage Differential Signal (LVDS) plug connector. Audio data is relayed to the transmitter from the amplifier via the LVDS line. The audio power amplifier also supplies the power and ground for the transmitter. The audio signal, is then passed on to the headphones via a Whitefire(R) digital infra-red signal to any seating position within the interior of the vehicle. The digital signal means that each headphone user is able to listen to a different audio source.

NOTE:
Providing an audio source is directed to the transmitter unit, faint red lights can be seen behind the smoked glass cover of the unit. This can be useful for diagnosis to prove audio infra-red transmission is active.
The premium headphone system includes Dolby(R) headphone surround sound when listening to the DVD source. It is possible to equip the vehicle with three sets of headphones.

NOTE:
There is no docking station to store the headsets, therefore charging of the batteries is not supported via the vehicles electrical system.
The system can support up to three pairs of wireless headphones. When a dual-view screen is fitted, the front passenger can listen to TV/DVD (digital versatile disc) and when Rear Seat Entertainment (RSE) screens are fitted, rear passengers can listen to selected source on RSE screen. The headphones have an adjustable headband which operates on a ratchet mechanism.
The LH (left-hand) side and the RH (right-hand) side of the headphone houses the infra-red receiver sensors which receive the transmitted signals from the headphone transmitter. Two AAA batteries are located below a sliding cover. When inserting the batteries it is important that the battery polarity is observed as marked in the battery compartment.
The RH (right-hand) side of the headphone houses the volume control, a channel switch and a power 'ON' LED (light emitting diode). The channel switch allows the user to select alternative audio channels (rear left/right, dual-view audio source) when active. The power 'ON' LED (light emitting diode) is illuminated when the on/off switch on the RH (right-hand) side of headphone is pressed. This will remain on and the headphones powered until the switch is pressed for a second time. If the headphones have not received an infra-red signal from the transmitter for several minutes, they will automatically switch off to prevent battery drain.

Thin Film Transistor (TFT) Screens





The RSE TFT screens are located in the rear of the front seat head restraints. The screen is secured in the head restraint with one screw and 2 metal clips which are covered by a removable surround. The screen is an 8 inch, auto dimming (selectable via remote control settings), 800X480 resolution Thin Film Transistor (TFT) monitor.
An infra-red receiver sensor is located centrally in the bottom portion of the upper screen surround. The receiver sensor receives infra-red transmissions from the RSE remote control and passes them to the RSE module on a private CAN (controller area network) bus system which is only connected between the RSE module and the RSE screens. The RSE module can then transmit any relevant messages onto the MOST ring. All screen settings can be changed using the RSE remote control.
The screen should be cleaned with a lightly, water moistened cloth. Do not use chemical agents or domestic products to clean the screen or any part of the surround.
Each RSE TFT (thin film transistor) screen is connected to the infotainment system using a 12 pin harness connector and 2 pin LVDS video connector.

TV Tuner





The TV tuner is located under LH (left-hand) front seat, next to the audio power amplifier. The front seat occupants can view the TV transmissions on the TSD but only if dual view TSD is installed or the vehicle is stationary on a non dual-view TSD. When the RSE system is fitted, the TV tuner allows the rear seat occupants to view television transmissions on the RSE screens.
The TV tuner is capable of receiving analogue and DVB-T digital broadcasts in one unit where transmissions allow or ISDB-T digital broadcasts in Japan in a separate unit.
The TV tuner is connected on the MOST ring which it uses to output its audio signals to the audio power amplifier. Video output from the TV tuner is on a LVDS cable to the RSE module or a CVBS screened co-axial cable to the TSD in vehicles without the RSE system. Four further connections provide for the signal input from four TV antenna amplifiers which are in turn attached to four antennae.
The TV tuner contains three internal tuners. All of the tuners are connected to the antennae. These tuners receive the audio and video signals. The tuner or combination of tuners with the strongest signals are automatically used to display the required TV channel.
One of the internal tuners (connected to two of the antennae) is always used to scan the locality for receivable channels (background scanning). The tuner can detect different frequencies transmitting the same channel and can select the strongest signal for use.
To cope with changes in technology, the TV tuner is able to receive both analogue and digital TV signals. In certain areas both analogue and digital signal strengths will vary. When in an area of weak reception, a break-up in picture and sound quality, or a blank screen or frozen picture and audio muting may occur. It may be of benefit to switch between analogue and digital TV stations.
The main advantage with digital TV reception is the improved picture quality. Four TV antennas are located in the rear quarter glass windows and rear spoiler. In the event of a loss of digital reception, a 'loss of reception' message is displayed. The TV system also has a programme diversity function as well as antenna diversity that allows the current tuned programme to be maintained as the vehicle passes through regions with different transmitters broadcasting on different frequencies. This function is only occurs where the reception data for the presently tuned channel matches the data of the new signal.
The system offers a choice of aspect ratios, between 4:3, 16:9 and zoom. The zoom ratio will always try to fill the screen and avoid the black bars/squashed image. For digital signals the broadcaster will usually send the correct format for the transmitted programme and this will remove one of the incorrect formats from the screen (4:3 or 16:9). The "Zoom" option is always available and will always be selected as the default format. If the format is unknown (typical for analogue) then all three format options will be displayed. The TSD screen offers picture quality using a resolution of 800x480 pixels for single view and 400x480 pixels for dual view.
The TV tuner is connected to the infotainment system using one harness connector, one LVDS connector (for RSE vehicles), one single FACRA connector for CVBS connection to the TSD (for non-RSE vehicles), one MOST connector and two dual FACRA connectors for the antennae connections.
Japan TV Tuner
Japanese market vehicles are fitted with a TV tuner unique to that market. The tuner has a slot to allow a B-CAS (BS Conditional Access Systems Co., Ltd.) card to be inserted.
All digital TV's in Japan (home systems included) require a conditional B-CAS access card. This card decrypts the TV broadcast signal to allow it to be displayed as all broadcasts in Japan are encrypted. Without this card there will be no picture or audio.
B-CAS (BS Conditional Access Systems Co., Ltd.) is a vendor and operator of the Integrated Services Digital Broadcasting (ISDB) CAS system in Japan. All ISDB receiving apparatus requires a B-CAS card under regulation, the B-CAS card is supplied as the standard accessory in Japan.
Integrated Services Digital Broadcasting (ISDB) is a Japanese standard for digital television and digital radio used by the country's radio and television stations.

TV Antennas

NOTE:
On vehicles with remote park heating, the RH (right-hand) rear antenna is fitted with a combined remote park heating/TV antenna amplifier.

TV Antennas









Two TV antennae are located in each rear side quarter window. There are three antennae in each window; the forward antenna is a high frequency antenna and the rearward antenna is a low frequency antenna. A third antenna, located between the two TV antennae is for radio reception. TV antennas are also located within the rear spoiler and are connected to two amplifiers also located in the spoiler.
Each quarter window antenna is connected directly to a TV RF antenna amplifier which is located above the rear quarter window, behind the trim. The four TV antenna amplifiers boost the received RF signal before it is collected and processed by the TV tuner. The TV antennas can receive RF signals of between 48 and 860 MHz.

Auxiliary Input

Portable Audio Interface Panel





The portable audio interface panel is located in the floor console cubby box. The panel provides for the connection of auxiliary audio and video inputs from an external source via three sockets on the panel.
One 3.5mm audio socket is provided. The socket is connected to the IAM and allows audio to be played on the vehicle speakers.
The double USB (universal serial bus) socket allows for the attachment of auxiliary inputs, such as iPod/iPhone, an MP3 player or a USB (universal serial bus) memory stick. This socket is connected directly to the IAM and allows audio to be selectable on the front screen and to be played through the vehicle speakers. It will also allow standard definition Div X video files to be played from a USB (universal serial bus) memory stick.

Audio Visual Input/Output (AVIO)





The rear AVIO panel is located at the rear of the floor console. The panel provides for the connection of auxiliary audio and video inputs from an external source, such as a games console, via three sockets on the panel.
One set of video and audio phone sockets are provided. The socket is connected to the RSE module and allows the auxiliary input video to be played on the RSE screens and the audio to be played on the vehicle speakers or on the wireless headphones. The auxiliary input video cannot be displayed on the TSD.
The single USB (universal serial bus) plug allows for the attachment of an auxiliary audio input, such as iPod/iPhone, an MP3 player or a USB (universal serial bus) memory stick. This plug is connected directly to the RSE module and allows audio to be selectable on the RSE screens and to be played on the wireless headphones or through the vehicle speakers. It will also allow standard definition Div X video files to be played from a USB (universal serial bus) memory stick.
The AVIO panel is connected to the infotainment system using a single 20 pin harness connector.