Overview - TV System
The TV system (QU1) is part of the MMI Infotainment system.
The TV Tuner -R78- is connected via the MOST bus to the other Infotainment system components. Operation is performed via the Multimedia System Control Head -E380-.
- Roof Antenna -R216-
- Front Information Display Control Head -J685-, Display in Center of the Instrument Panel
- Multimedia System Control Head -E380- in the Center Console
- Information Electronics Control Module 1 -J794- in the Glove Compartment
- External Audio Source Connection -R199- in the Center Console Storage Compartment
- MOST Bus
- Digital Sound System Control Module -J525- in Luggage Compartment on Left Rear Side
- TV Tuner -R78- in the Right Rear of the Luggage Compartment
- Microphone Unit in Front Roof Module -R164- in the Front Interior Lamp -W1-
Fault Finding is performed using the "Guided Fault Finding" on the Vehicle Diagnostic Tester.
Antenna wires, repairing. Refer to ANTENNA WIRES, REPAIRING .
Notes on MOST Bus
The optical data bus "MOST bus" is used in addition to the CAN bus.
A fiber-optic cable is used. Fiber optic cables are routed inside corrugated tubes for protection.
Replace the complete fiber-optic cable if possible.
The front surface of the connectors must not be contaminated.
If disconnecting the connectors: Attach the Fiber-Optic Repair Set - Connector Protective Caps: VAS6223/9 .
When routing fiber-optic cables, make sure not to go below the minimum bending radius of 25 mm. Do not crush or kink the fiber-optic cables.
Repairing fiber-optic cables. Refer to GENERAL REPAIR INFORMATION .

