Rear entertainment, TV reception, function - GF82.90-P-1003GQ
MODEL 164.1 with CODE (864) Rear entertainment system with CODE (863) Digital/analog TV tuner as of model year 09/YoM 08 model refinement package
MODEL 164.8 with CODE (864) Rear entertainment system with CODE (863) Digital/analog TV tuner as of model year 09/YoM 08
MODEL 251.0 with CODE (864) Rear entertainment system with CODE (863) Digital/analog TV tuner as of model year 09/YoM 08
MODEL 251.1 with CODE (864) Rear entertainment system with CODE (863) Digital/analog TV tuner as of model year 09/YoM 08
Function requirements
- Status "Circuit 30 ON" and active telematics CAN (one vehicle door is opened) for t = 10 min or "Circuit 15R ON"
- Rear entertainment system is switched on and operating properly
- TV system is operating properly
General
The TV picture or user interface is generated by the left rear display (A40/5) or right rear display (A40/6) when the "TV" menu item in the application line is selected and shown in the application field on the screen of the respective display.
When the left rear display is switched on, the "TV" menu item can only be called up on the left rear display.
When the right rear display is switched on, the "TV" menu item can only be called up on the right rear display.
When the left rear display and right rear display are switched on, the "TV" menu item can be called up on both displays. It is only necessary to select the respective display using the "Roller" control on the remote control when the "TV" menu item with menus and submenus is operated via the remote control.
The "Rear entertainment TV reception" function consists of the following subfunctions:
- Selection of TV channel function sequence
- Settings in "TV" menu item via remote control function sequence
- Transmission of audio and picture signals function sequence
Operating instruction
When the "TV" menu item is called up via the "4-zone control with OK" on the remote control, the TV picture appears in the application field of the respective display in full picture mode. A control menu displaying the channel currently selected appears in the status bar of the respective display. The skip left and right symbols appear in the function bar of the respective display with the previous and next channel shown next to the respective symbol.
Full picture mode is terminated by pressing the "4-zone control with OK" on the remote control. The "TV" menu item is displayed on the respective display with the associated menus broken down as follows:
- Status bar:
- No display
- Application bar:
- "Disk", "TV", "AUX" and "System"
- Application field:
- Scaled down TV picture and "Full picture" menu
- Function bar:
- "TV" menu, "Memory", "Info" (only on digital TV channels), "Treble" and "Bass"
The associated submenus can be called up on the respective display via the following menus:
- "TV" menu:
- Channel list (receivable channels)
- Channel input (precise channel input)
- Brightness
- Contrast
- Color
- 16:9 optimized
- 4:3
- Wide screen
- Channel fix (= best audio, best receivable channel)
- TV standard (= country switchover for channel selection)
- "Memory" menu:
- Audio memory (up to 20 channels per display)
- Preset station buttons 1 to 20 (per display)
- "Info" menu (only on digital TV channels, additional information about channel)
- "Treble" menu (to adjust the treble)
- "Bass" menu (to adjust the bass)
The "TV" menu item with menus and submenus is selected and operated on the respective display via the following controls on the remote control:
- "Roller":
- Select respective display
- "4-zone control with OK":
- Move around screen of respective display in 4 directions and select menus or submenus with "OK".
- "Back":
- Move back through menu levels
- "Mute":
- Muting of selected TV channel for headphones connected by cable
- "Volume +/-":
- Regulation of volume of selected TV channel for headphones connected by cable
- "Skip forward or back":
- Skip forward or back when selecting TV channel
- "12-key keypad":
- Alphanumeric input of TV channel
The currently receivable analog or digital TV channels can be selected regardless of the settings on the COMAND operating, display and controller unit (A40/3), with code (512) COMAND APS with DVD changer.
Selection of TV channel function sequence
The TV combination tuner (analog/digital) (A90/1) receives TV signals over direct lines from the following TV antennas via the associated antenna amplifiers:
- TV antenna 1 via left antenna amplifier module (A2/64)
- TV antenna 2 and TV antenna 3 via TV rear window antenna amplifier (A2/92)
- TV antenna 4 via right antenna amplifier module (A2/65)
The TV combination tuner (analog/digital) evaluates the TV signals and transmits analog audio signals via a stereo line and analog picture signals via a Y/C line to the DVD player (A40/4).
The DVD player forwards the analog audio signals via a stereo line and the analog picture signals via a Y/C line to the respective display. The user interface is displayed on the screen of the respective display.
The rear passenger(s) can now select a TV channel using the above-specified controls on the remote control (see Operating instructions). The signals from the above-specified controls on the remote control are transferred via the infrared (IR) interface on the remote control to the respective display.
The respective display forwards the signals to the TV combination tuner (analog/digital) via the telematics CAN. The TV combination tuner (analog/digital) evaluates these signals and transmits analog audio signals via a stereo line and analog picture signals via a Y/C line back to the DVD player.
The DVD player forwards the analog audio signals via a stereo line and the analog picture signals via a Y/C line to the respective display. The user interface is displayed on the screen of the respective display.
Settings in "TV" menu item via remote control function sequence
The respective display generates the digital picture signals for the user interface of the "TV" menu item on the screen of the respective display based on the analog picture signals from the DVD player. The menus and submenus of the "TV" menu item are displayed for the rear passenger(s) on the screen of the respective display (see operating instructions).
The rear passenger(s) can now operate the functions and adjust settings using the above-specified controls on the remote control (see Operating instructions).
The signals from the above-specified controls on the remote control are transferred via the IR interface on the remote control to the respective display.
Transmission of audio and picture signals function sequence
Upon reception of the analog picture signals from the TV channel which is tuned in from the TV combination tuner (analog/digital) via Y/C lines and the DVD player, the respective display generates the digital picture signals for the associated screen on the respective display.
The digital picture signals are output on the screen of the respective display.
Upon reception of the analog audio signals from the TV channel which is tuned in from the TV combination tuner (analog/digital) via stereo lines and the DVD player, digital audio signals are generated from these analog audio signals.
These digital audio signals are transferred via the IR interface of the respective display and the IR interface of the connected headphones to these headphones (cordless).
Volume can only be adjusted via the volume control integrated in the respective headphones.
When headphones (cable-connected) are connected via the headphone jacks integrated in the respective displays, the analog audio signals are transferred to the respective headphones via the headphone cable by the respective display. The volume is adjusted via the "Volume +/-" control on the remote control. Additionally, the preset volume can be regulated via the volume control of the particular headphones. The signals from the "Volume +/-" control on the remote control are transferred via the IR interface on the remote control to the respective display.
| Electrical function schematic for rear entertainment TV reception | Model 164 | PE82.90-P-2053-97MAA | |
| Model 251 | PE82.90-P-2053-97RAA | ||
| Rear entertainment DVD player component description | A40/4 | GF82.90-P-4009GQ | |
| Rear display left/right component description | A40/5, A40/6 | GF82.90-P-4020GQ | |
| TV combination tuner (analog/digital), component description | A90/1 | GF82.90-P-4019GQ |