Table of contents: TV equipment device ↓ TV tuner connectors "R78" ↓ 3 - Multi-pin connector, 20-pin… ↓ 4 - MOST bus ↓ Removal TV tuner "R78" ↓
The TV equipment is a component of the MMI infotainment system. The R78 TV tuner is connected via the MOST bus to other components of the infotainment center. Control is performed via the E380 multimedia system control panel. The system has a "hybrid" tuner for receiving analog and digital TV radio stations. The communications electronics control unit 1 "J794" contains a DVD drive for playing DVD discs. Troubleshooting is performed in the "Guided Fault Finding" mode.
Installation diagram 1. TV tuner "R78". Bolt, 2 Nm; 2-5. Nut. 3 Nm; 6. Bracket with radio "R" (MMI)
TV equipment device
1. Used control and indication organ indicator, front "J685" in the center of the front panel; 2. Used information electronics 1 "J794" on the front panel; 3. The control element of the multimedia system "E380" in the lower part of the central console; 4. Data bus diagnostic interface "J533" behind the glove compartment on the left; 5. CD changer "R41" in the glove compartment; 6. TV tuner "R78" behind the left trunk trim; 7. Used digital audio system "J525" behind the left trunk trim; 8. Antenna amplifier 4 "R113" behind the lower trim of the trunk; 9. Antenna amplifier 3 "R112" behind the lower trim of the trunk; 10. Antenna 2 for TV "N56" / antenna 3 for TV "R57"; 11. Antenna 1 for TV "R55"; 12. FBAS cable to communications electronics control unit 1 "J794"TV tuner connectors "R78"
1. TVUV2 connection (brown) from antenna amplifier 3 "R112" / antenna amplifier 4 "R113"; 2. Output TV3 (green) of antenna amplifier 4 "R CZ"; S. Multi-pin plug connector, 20-pin (T20c) red; 4. MOST bus; 5. FBAS output (green) to the communications electronics control unit 1 "J794"3 - Multi-pin connector, 20-pin (T20c) red
1. Terminal 30; 2. Terminal 31; 3. Ring break diagnostic cable; 4. Screen "mass"; 5. Video output (Pear Seat Entertainment); 6. Screen "mass"; 7. Audio output L (Pear Seat Entertainment); 8. Audio output P (Pear Seat Entertainment); 9. Screen "mass"; 10. Audio input left; 11. Audio input right; 12. Video input; 13-15. "Mass" of the screen; 16. Audio input left; 17. Audio input right; 18. Video input; 19. Screen "mass"; 20. CONTACT I/D4 - MOST bus
1. Login; 2. ExitRemoval TV tuner "R78"
The TV tuner "R78" is located behind the left trim panel of the trunk. When replacing a used one, select the "Replace" function of the corresponding used one in the "Guided Fault Finding" mode. Use a tester for this. Switch off all electrical consumers. Switch off the ignition. Remove the trunk trim panel. Remove the bracket with the "R" radio and move it to the side. Disconnect connectors "2", "3" and "4" from the TV tuner "R78--1".
Insert the protective cap for the cable plugs "VAS 6223/9" "1" into the plug connector of the MOST bus "2". Unscrew the nuts "arrows" on the bracket "1". Remove the TV tuner "R78" with the bracket (TV tuner "R78" is fixed to the bracket). On the side of bracket "2", unscrew the bolts "arrows" and move TV tuner "R78-1" back from bracket "2".
Installation in reverse order.