NavLinkz RL4-MZD88 User manual

Version 29.01.2021 HW: CAM(V100)/(V21) RL4-MZD88
r.LiNK Video-inserter
RL4-MZD88
Compatible with
Mazda Fahrzeuge with MZD Connect Infotainment
and 8.8inch ultrawide monitor
Video-inserter for front- and rear-view camera
and two additional video sources
Product features
Video-inserter for factory-infotainment systems
1 CVBS Input for rear-view camera
1 CVBS Input for front camera
2 CVBS video-inputs for after-market devices (e.g. USB-Player, DVB-T2 tuner)
Automatic switching to rear-view camera input on engagement of the reverse gear
Automatic front camera switching after reverse gear for 10 seconds
Activatable parking guide lines for rear-view camera (not available for all vehicles)
Video-in-motion (ONLY for connected video-sources)
Video-inputs PAL and NTSC compatible

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Contents
1. Prior to installation
1.1. Delivery contents
1.2. Checking the compatibility of vehicle and accessories
1.3. Connectors –video interface
1.4. Settings of the 8 Dip switches (black)
1.4.1. Activating the front camera input (dip 1)
1.4.2. Enabling the interface’s video inputs (dip 2-3)
1.4.3. Rear-view camera setting (dip 5)
1.4.4. Activating the guide lines (dip 6)
1.5. Settings of the 4 Dip switches (CAN function –red)
2. Installation
2.1. Place of installation
2.1.1. Place of installation –video interface
2.1.2. Place of installation –daughter PCB
2.2. Connection schema
2.3. Installation and connection –daughter PCB
2.3.1. Warning notes concerning the installation of ribbon cables
2.4. Connection–picture signal cable
2.5. Connection–10pin Power/CAN cable
2.6. 12pin interface cable
2.7. Power supply output
2.8. Connection - video sources
2.8.1. Audio-insertion
2.8.2. After-market front camera
2.8.3. After-market rear-view camera
2.8.3.1. Case 1: Video-interface receives the reverse gear signal
2.8.3.2. Case 2: Video interface does not receive the reverse gear signal
2.9. Connection video-interface –keypad
3. Interface operation
4. Picture settings
5. Specifications
6. FAQ –Trouble shooting
7. Technical support

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Legal Information
By law, watching moving pictures while driving is prohibited, the driver must not be
distracted. We do not accept any liability for material damage or personal injury resulting,
directly or indirectly, from installation or operation of this product. Apart from using this
product in an unmoved vehicle, it should only be used to display fixed menus or rear-view-
camera video when the vehicle is moving (for example the MP3 menu for DVD upgrades).
Changes/updates of the vehicle’s software can cause malfunctions of the interface. Up to
one year after purchase we offer 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 will not be refunded.
1. Prior to installation
Read the manual prior to installation. Technical knowledge is necessary for installation. The
place of installation must be free of moisture and away from heat sources.
Before the final installation in the vehicle of the video sources, we recommend a test-run
to ensure the compatibility of vehicle and interface. Due to changes in the production of
the vehicle manufacturer there’s always a possibility of incompatibility.
1.1. Delivery contents
Take down the serial number of the interface and store this manual for support
purposes: ____________________

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Compatibility
Limitations
Video only The interface inserts ONLY video signals into the infotainment.
For audio inserting, use the possibly existing factory audio-AUX-input or
a FM-modulator. If 2 AV-sources shall be connected to the
infotainment, for audio switching an additional electronic part is
required.
Factory rear-view camera Automatically switching-back from inserted video to factory rear-view
camera is only possible while the reverse gear is engaged. To delay the
switch-back, an additional electronic part is required.
After market front camera The front camera will automatically be switched for 10 seconds after
disengaging the reverse gear. A manually front camera switching is
possible by external keypad.
Guidelines Displayed guidelines are not available in all vehicles.
1.2. Checking the compatibility of vehicle and accessories
Brand
Compatible vehicles
Infotainment systems
Mazda
Vehicles since about model year 2019 with
MZD Connect - 8.8inch ultrawide monitor

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1.3. Connection - Video-Interface
The video-interface converts the connected after-market sources video signals into an RGB
digital signal which is inserted in the factory monitor using separate trigger options and it
reads vehicle’s digital signals out of the vehicle’s CAN-bus and converts them for the video
interface.
1.4. Settings of the 8 Dip switches (black)
Some settings have to be selected by the 8 dip-switches at the
video-interface. Dip position down is ON and position up is OFF.
See the following chapters for detailed information.
*The front camera will automatically be switched for 10 seconds after disengaging the
reverse gear.
The camera power supply +12V will automatically be provided by the green wire "Reverse-Out"
when the reverse gear is engaged, plus 10 seconds delay for the front camera, and also +12V
when the front camera is manually selected by external keypad (see chapter "Power Supply
Output").
Dip
Function
ON (down)
OFF (up)
1
Front camera
enabled*
disabled
Power supply
output
(red wire)
+12V (max. 3A) when reverse gear
is engaged incl. 10 seconds delay
and +12V by manual switching to
front camera by keypad
+12V (max. 3A) ACC
2
CVBS AV1-input
enabled
disabled
3
CVBS AV2-input
enabled
disabled
4
No function
Set to OFF
5
Rear-view cam type
after-market
factory or none
6
Guide lines
disabled
enabled
7
No function
Set to OFF
8

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1.4.1. Activating the front camera input (dip 1)
If set to ON, the interface switches for 10 seconds from the rear-view camera to the front
camera input after having disengaged the reverse gear. In addition, a manual switch-over to
the front camera input is possible via keypad (short press) from any image mode.
Description of the power supply output: see chapter “Power supply output”.
1.4.2. Enabling the interface’s video inputs (dip 2-3)
Only the enabled video inputs can be accessed when switching through the interface’s video
sources. It is recommended to enable only the required inputs, disabled inputs will be
skipped when switching through the video-interfaces inputs.
1.4.3. Rear-view camera setting (dip 5)
If set to OFF, the interface switches to factory picture while the reverse gear is engaged to
display factory rear-view camera.
If set to ON, the interface switches to its rear-view camera input „Camera-IN“ while the
reverse gear is engaged.
1.4.4. Activating the guidelines (dip 6)
If set to OFF, the guidelines will be shown on the display. If set to ON, the guide lines won’t
be visible on the display.
Note: If there is no communication between interface and the vehicle`s CAN-bus (several
vehicles aren’t compatible), the reverse gear guide-lines can`t be shown during the vehicle’s
operation, even if they once appear after having switched the system to powerless
Note: Dips 4, 7 und 8 are out of function and have to be set to OFF.
1.5. Settings of the 4 Dip switches (CAN function - red)
Dip position down is ON and position up is OFF.
Navigation / System
Dip 1
Dip 2
Dip 3
Dip 4
All vehicles
OFF
OFF
OFF
OFF
For all vehicles, use the OFF position of all the 4 dip switches.
After each Dip-switch-change a power-reset of the Can-box has to be performed!

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2. Installation
Switch off the ignition and disconnect the vehicle’s battery! The interface needs a
permanent 12V source. If -according to factory rules- a disconnection of the battery has to
be avoided, it should be sufficient to use the vehicle’s sleep-mode. In case, the sleep-mode
doesn’t succeed, the battery has to be disconnected with a resistor lead.
The Interface needs a permanent power supply! If power isn’t directly taken from the
battery, the connection’s power has to be checked for being start-up proven and
permanent.
Before a final installation, we recommend a test-run to ensure the compatibility of the
vehicle and the interface. Due to changes in the production of the vehicle manufacturer
there’s always a possibility of incompatibility.
2.1. Place of installation
2.1.1. Place of installation –video-interface
The video-interface has to be installed on the backside of the head-unit.
2.1.2. Place of installation - daugter PCB
The daughter PCB has to be installed inside the monitor housing.

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2.2. Connection schema

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2.3. Connections and installation –daughter PCB

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2.3.1. Warning notes, concerning the installation of ribbon cables
1) The contacting ends of ribbon cables always have to be installed in a straight and
precise 180° position to the connector. Each deviation from a perfect contact position will
curse faulty contact and even danger of short circuit
2) The ribbon cable’s contacting side always has to correspond to the contacting side of
the connector, concerning the mounting position.
3) Avoid cable contusion or cable injury caused by sharp-edged metal.

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2.4. Connection –picture signal cable
Connect the picture signal cable’s beige coloured female 20pin connector which is lead out
from the head unit, to the male 20pin connector of the video-interface.

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2.5. Connection - 10pin interface cable
Connect the 10pin Power/CAN cable’s female 10pin connector to the
male 10pin connector of the video-interface.
Disconnect the female 52pin connector of the vehicle harness from the
rear of the head-unit and connect it to the 10pin Power / CAN cable’s male
52pin connector.
Connect the 10pin Power / CAN cable’s female 52pin connector to the male
52pin connector of the head-unit.

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2.6. Connection - 12pin interface cable
Connect the female 12pin connector of the 12pin interface cable to the male 12pin
connector of the video interface.
Connect the 12pin interface cable’s purple coloured wire Manual ACC to
S-contact terminal 86s +12V (e.g. glove compartment illumination).

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2.7. Power supply output
The red power supply output ACC/front cam out 12V (max 3A) can 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 seconds
delay after reverse gear is disengaged and
+12V by manual switching to front camera by keypad (short
press)
Dip 1 OFF
+12V (max. 3A) ACC

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2.8. Connecting the Video sources
It is possible to connect two after-market Video-sources and one after-market rear-view
camera to the video-interface.
Before the final installation, we recommend a test-run of the interface. Due to changes in
the production of the vehicle manufacturer, there’s always the possibility of
incompatibility.
Connect the 12pin interface cable’s female 12pin connector to the male 12pin connector of
the video-interface.
Connect the video RCA of the Rear-view camera to the 12pin interface cable’s female
RCA connector „Reverse V4.
Connect the front camera’s video RCA connector to the 12pin interface cable’s female
RCA connector „Front V3“.
Connect the video RCA of the AV source 1 and 2 to the 12pin interface cable’s female RCA
connector “Left (V1)” and ”Right (V2)”.

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2.8.1. 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.
2.8.2. After-market front camera
The red power supply output ACC/front cam out 12V (max 3A) can be used to power
a front camera. If Dip 1 is set to ON (black 8 dips), the power supply output gives
+12V (max 3A) when reverse gear is engaged incl. 10 seconds delay after reverse gear
is disengaged.
Note: In addition, a manual switch-over to the front camera input is possible via keypad
(short press) from any image mode. The power supply output gives +12V then, as well (if Dip
1 is set to ON and the front camera input is selected).
Attention: A long press of the external keypad push button will switch the interface to the
next source.

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2.8.3. 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. See the following illustration for
the according connection.
Note: Do not forget to set dip5 of the video-interface to ON before testing.
2.8.3.1. Case 1: Video interface receives the reverse gear signal
If the CAN-bus interface delivers +12V on the green wire of the 20pin cable when reverse
gear is engaged, it will automatically be switched to the rear-view camera input “Camera IN”
while reverse gear is engaged.
The 12 V power supply for the rear-view camera (max 3A) has to be taken from the
green wire of the 20pin cable to avoid an unnecessary permanent power supply to
the camera electronic.
For the operation, both green cables “Reverse IN” and “Reverse OUT” have to stay
connected.

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2.8.3.2. Case 2: Interface does not receive any reverse gear signal
If the video interface does not deliver +12V on the green wire of the 20pin cable when
reverse gear is engaged (not all vehicles are compatible), an external switching signal from
the reverse gear light is required. As the reverse gear light’s power supply isn’t voltage-
stable all the time, an ordinary open relay (e.g AC-RW-1230 with wiring AC-RS5) or filter (e.g.
AC-PNF-RVC) is required. The diagram below shows the connection type of the relay.
Disconnect the green cable’s pre-connected male- and female connectors of the
12pin cable and connect the green input cable “Reverse-IN” to the output connector
(87) of the relay.
Note: Not least to avoid short circuits, the best solution should be, to crimp a male
4mm connector to the relay’s output cable and connect it to the green cable’s female
4mm connector. The output-cable “Reverse-OUT” remains disconnected as it’s out of
function.
Connect the Reverse light’s power-cable to coil (85) and the vehicle’s ground to coil
(86) of the relay.
Connect the output connector (87) of the relay to the rear-view camera’s power-
cable, like you did it to the green “Reverse-IN” cable before.
Connect permanent power / 12V to the relay’s input connector (30).

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2.9. Connection - external keypad
Connect the keypad’s female 4pin connector to the 12pin interface cable’s male 4pin
connector.
Note: Even if the switching through several video sources by the keypad mightn’t be
required, the keypad’s invisible connection and availability is strongly recommended.

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3. Interface operation
The interface’s external keypad can be used to switch the enabled inputs.
Long press of keypad (2-3 seconds)
By long pressing the external keypad (2-3 seconds), the video interfaces witches the input
from the factory video to the inserted video sources.
Each press (approx. 2 sec) will switch to the next enabled input. If all inputs are enabled the
order is:
Factory video  video IN1  video IN2  factory video  …
By dip switch deactivated inputs will be skipped. If an audio switch has been connected in
the system, also the audio signal will be switched when switching from video IN1 to video
IN2
Note: The interface switches after releasing the switch (after long pressure).
Short press of keypad (only if DIP 1 is set to ON)
By short pressing the external keypad, the video interfaces switches from the factory video
to the front camera input and back to factory video.