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 Version 08.07.2022 

HW:CAM(V100)/(V30.3) 

RL4-MGU 

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2.5.1.

 

Audio-insertion 

 

This interface is only able to insert video signals into the factory infotainment. If an AV-
source is connected, the audio insertion has to be done by the factory audio AUX input or an 
FM-modulator. The inserted video-signal can be activated simultaneously to each audio-
mode of the factory infotainment. If 2 AV sources shall be connected to the infotainment, 
additional electronic is necessary to switch the audio signals.  
 
 
2.5.2.

 

After-market rear-view camera 

 

Some vehicles have a different reverse gear code on the CAN-bus which the video-interface 
is not compatible with. Therefore, there are two different ways of installation. If the video 
interface receives a signal of the reverse gear, the green wire 

“Reverse-OUT”

 of the 12pin 

cable should carry +12V while the reverse gear is engaged. 
 
Note: Do not forget to set video interface’s dip5 to ON before testing. 
 
 
2.5.2.1.

 

Case 1: Interface receives the reverse gear signal 

 

If the interface de12V on the green output wire of the 12pin interface cable while 
reverse gear is engaged, the video interface will automatically switch to the rear-view 
camera input 

“V4 Reverse”

 while the reverse gear is engaged. 

 

 

 

Additionally, the +12V (max. 3A) power supply for the rear-view camera can be taken 
from the green wire of the 12pin interface cable. 

 

Summary of Contents for RL4-MGU

Page 1: ...factory infotainment systems CVBS Input for one rear view camera CVBS Input for one front camera 2 CVBS Video inputs for after market Video sources e g DVD Player DVB T Tuner Automatic switching to re...

Page 2: ...p switches CAN function red 2 Installation 2 1 Place of installation 2 2 Connection schema 2 3 Connection to factory head unit and monitor 2 3 1 Connection picture signal cable 2 3 2 Connection Power...

Page 3: ...free software updates for our interfaces To receive a free update the interface has to be sent in at own cost Wages for de and reinstallation and other expenditures involved with the software updates...

Page 4: ...either the possibly existing factory audio AUX input or a FM modulator can be used If 2 audio sources shall be connected to the infotainment an additional electronic is necessary to switch them Facto...

Page 5: ...the video interface Dip position down is ON and position up is OFF See the following chapters for detailed information After each Dip switch change a power reset of the Can box has to be performed Di...

Page 6: ...compatible the parking distance cannot be displayed In this case set dip4 to Off 1 4 4 Rear view camera setting dip 5 If set to OFF the interface switches to factory picture while the reverse gear is...

Page 7: ...the sleep mode does not succeed the disconnection of the battery can be done with a resistor lead If the necessary stabilized power supply for the interface is not taken directly from the battery the...

Page 8: ...Version 08 07 2022 HW CAM V100 V30 3 RL4 MGU Page 8 2 2 Connection schema...

Page 9: ...x coloured HSD 2 connector at the monitor s rear side Connect the opposite none angled bordeaux coloured HSD 2 connector of the enclosed picture signal cable to the bordeaux coloured male HSD 2 connec...

Page 10: ...pin connector of the video interface Remove the female 16pin connector of the vehicle harness from the rear side of the head unit and connect it to the male 16pin connector of the 10pin PNP Power CAN...

Page 11: ...he purple coloured wire Manual ACC of the 12pin interface cable has to be connected additionally to ACC or S contact terminal 86s 12V e g glove compartment illumination Note With analogue connection o...

Page 12: ...be used to power an external source and has a different assignment depending on the position of dip switch 1 of the black 8 dips Dip Function Dip 1 ON 12V max 3A when reverse gear is engaged incl 10...

Page 13: ...changes in the production of the vehicle manufacturer there s always a possibility of incompatibility Connect the 12pin interface cable s female 12pin connector to the male 12pin connector of the vid...

Page 14: ...code on the CAN bus which the video interface is not compatible with Therefore there are two different ways of installation If the video interface receives a signal of the reverse gear the green wire...

Page 15: ...Disconnect the green cable s preconnected male and female connectors of the 12pin interface cable and connect the green input cable Reverse IN to the output connector 87 of the relay Note Last but no...

Page 16: ...8 dips the power supply output gives 12V max 3A when reverse gear is engaged Note In addition a manual switch over to the front camera input is possible via keypad short press from any image mode The...

Page 17: ...terface and keypad Connect the female 4pin connector of the keypad to the male 4pin connector of the 12pin interface cable Note Even if switching through several video sources by the keypad mightn t b...

Page 18: ...when a working video source is connected to the selected video input of the interface The following settings are available Contrast Brightness Saturation Position H horizontal picture position Positi...

Page 19: ...itch settings the order is the following Factory video Video IN 1 Video IN 2 factory video Each press will switch to the next enabled input Inputs which are not enabled will be skipped Switchover by v...

Page 20: ...0 3 RL4 MGU Page 20 4 Specifications BATT ACC range 7V 25V Stand by power drain 20mA Power 340mA 12V Video input 0 7V 1V Video input formats NTSC and PAL Temperature range 40 C to 85 C Dimensions vide...

Page 21: ...r order of LVDS cables is exactly connected according to manual Plugging into head unit does not work when the manual says to plug into monitor and vice versa Wrong monitor settings of video interface...

Page 22: ...M button CAN bus interface does not support this function for vehicle Use external keypad or cut white wire of 6pin to 8pin cable and apply 12V impulses for AV switching Pressed too short For video so...

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