Mmi Display J685 - Audi MIB Series Service Training

MMI display J685

Display unit for front information display and
control panel control unit
On the Modular Infotainment System, an LVDS* signal is used for
video transmission from the electronic information systems
control unit 1, J794, to the MMI display, J685.
With the Entry plus and Standard MIB, the video output resolu-
tion is 400 x 240 pixels, and on the High-spec MIB 800 x 480
pixels.
The electronic information systems control unit 1, J794, is con-
nected to the MMI display, J685, via a sub-bus system (private
CAN bus). This is a CAN bus with a data transmission rate of 500
kbit/s. The electronic information systems control unit 1, J794,
uses it to control and monitor system statuses on the MMI display
(on or off, temperature, error status, etc.), for example.
Information/entertainment
CAN High
Information/entertainment
CAN Low
Connection concept for MMI display J685
Display unit for front information display and
control panel control unit
J685
Shield
Earth
LVDS +
Electronic information systems control unit 1
J794
5.8" display for Standard MIB on Audi A3 '13
7.0" display for High-spec MIB on Audi A3 '13
Earth
LVDS -
618_036
Terminal 30
Terminal 31
Private CAN High
Private CAN Low
618_037
618_019
33