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TV Tuner -R78- CONNECTOR ASSIGNMENTS

Fig 1: Identifying TV Tuner -R78-
GWWA91-11738Courtesy of AUDI OF AMERICA, LLC
  1. TV1/TV2 connection, from Antenna Amplifier 2 -R111- /Antenna Amplifier 3 -R112-
  2. TV3 wire for the Antenna Amplifier 4 -R113-
  3. 20-Pin Connector -T20a-
  4. MOST bus
  5. CVBS OUT to the Information Electronics Control Module 1 -J794- /DVD Changer -R161-
NOTE:

Unlisted connector terminals are not used.

Fig 2: 20-Pin Connector -T20b-
GWWA91-12210Courtesy of AUDI OF AMERICA, LLC
  1. Terminal 30
  2. Terminal 31
  3. Ring-break Diagnostic Cable
  4. Ground Shielding
  5. Video OUT (Rear Seat Entertainment)
  6. Ground Shielding
  7. Audio OUT L (Rear Seat Entertainment)
  8. Audio OUT R (Rear Seat Entertainment)
  9. Ground Shielding
  10. Audio IN L
  11. Audio IN R
  12. Video IN
  13. Ground Shielding
  14. Ground Shielding
  15. Ground Shielding
  16. Audio IN L
  17. Audio IN R
  18. Video IN
  19. Ground Shielding
  20. I/D PIN
Fig 3: 2 - MOST Bus
GWWA91-11851Courtesy of AUDI OF AMERICA, LLC
  1. IN
  2. OUT
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