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MH

L

MHL

Smartlink

MHL, Video, Bluetooth

MHL-9203-1

Install guide for Smartlink 

Universal Mirroring 

Interface

1. Introduction

The Smartlink

 

Universal Mirroring Interface

 from Dension is a very 

specifi c device, giving you a 

brand new user experience on your 

smartphone

 with 

MHL connection

. This cutting edge device allows you to 

see the exact same content on the radio display as you have on your phone 
and gives the possibility to control (over Remote Control Panel), browse, 
run applications, watch videos or play music from the connected phone. 

Other devices like iPhone or iPod touch can also be connected to the 
Smartlink (

special adapter 

is

 required 

e.g. 

Lightning Digital AV adapter

 

for iPhone 5s / 5c / 5) but 

without control option

 from the 

Remote Control 

Panel

Smartlink has two additional video inputs (one with video connection only) 
where external video capable device(s) can be connected like a DVD player, 
rearview camera and many others with external video output.

Compatibility

The radio or display has to be equipped with an 

Audio-Video input

, also 

known as 

‘Break-in’

Supported MHL capable phones

For the latest compatibility please visit: 

http://www.mhlconsortium.org/productlist/mobile-devices/

Important note for Samsung Galaxy S3/S4 users:

 Special adapter is 

required for MHL functions. To be ordered separately

 

(

SML11SG

)

.

Please note: 

The MHL capable phones produced by SONY (e.g.: Xperia Z, 

T etc.) video signal uses the NTSC standard which might be not supported  
by all radio systems.

Supported iPod / iPhone devices

1,2

iPod Touch (2nd , 3rd or 4th generation) 
iPhone 5s / 5c / 5 / 4S / 4 / 3GS and 3G

control is possible from the device user interface only

2

 

additional Lightning or 30 pin Digital AV adapter is required

Package content

• Smartlink 

interface

•  Power and video harness with RCA connectors

•  MHL Cable (HDMI to Micro-USB)

• Connector 

Port

•  Remote Control Panel (RCP)

• Microphone

•  Instruction manual (Install / User)

Optional accessories

•  5 pin to 11 pin adapter for Samsung (

SML11SG

)

•  RCA video cable (

EXT1ICO

)

•  HDMI Extension cable (

EXTHDMI

)

2. Device Installation

First, carefully remove your vehicle’s radio according to the manual and 
using the correct tools in order to avoid any possible damages during the 
installation.

Smartlink front

Smartlink back

Connector Port

USB

HDMI

Media Port

Power

Video

MIC RCP

In some cases, removing the car stereo could require a special (unique) 
panel removal , therefore if you have any doubt we recommend to contact 
your shop for more information or help. 

Once the Head Unit has been removed, disconnect all the cables (e.g. 
antenna) at the back.   

For permanent installation in a car you need to connect both ignition 
and permanent 12V DC, so as to protect the battery (Smartlink interface 

switches off

 automatically when the 

ignition is off

). The connections shall 

be as follows:

• Red: 

12V + Permanent

• Purple:

 12V + Ignition

• Black:

 

Ground Negative

The best place to connect these wires is the original radio harness or the 
fuse box. You can get switched power from the cigar lighter (most cases) if 
you have no other option. 

3. Connections 

The below diagram (

Fig. 1

) depicts how the different modules connect to 

the Smartlink. 

(

Fig. 1

)

Smartlink Universal installation diagram

Warning! Do not trap the cables, or leave them in a position where 
they may become trapped after refi tting the head unit.

Symptom

Cause

Solution

Status LED is OFF 

on the Connector 

Port

Wrong power 
connection or 

installation problem

Check the installation, 

make sure that all 

cables are connected 

properly

Smartlink is not 

recognized

Wrong DIP switch 

confi guration or 
Bypass mode is 

selected on the 

Connector Port

Check the DIP switches 

or change the mode 

from Bypass to Active 

according to the 

manual

No video / audio 

signal from 

Connector Port

Device is connected 

still over the HDMI

Disconnect the device 

connected to the HDMI 

input

No video content 

is visible over the 

brake-in video 

cable

HDMI source is still 

active

Press the ‘B’ button 

on the RCP to change 

the source to the video 

brake-in 

Fuzzy, distorted 

picture, incorrect 

or inverted colors

Wrong video standard 

setting

Check the DIP switch 

confi guration (PAL/

NTSC) or setting on the 

device

5. Troubleshooting

6. Further Assistance

If you need further assistance in using your Dension product, please 
contact your local supplier or visit 

www.dension.com/en/support 

and click 

on ‘

Support

’.

Please check also the download section for the latest fi rmware version and 
product documentation, as these may provide additional features or easier 
use of the product.

On the bottom of the Smartlink hardware, you will fi nd confi guration 
switches. Depending on your radio model and video input type you need 
to use different settings.

Set the DIP switches on the hardware

Display confi guration for “

PAL

” standard

4. Test and Refi t

Before you refi t the car stereo, test the Smartlink functions with your car 
audio and video, making sure all connections are correct and that you have 
full functionality. 

Note: If during testing you notice any changes or inconsistencies in 
the way the car’s electrical system operates, disconnect the Smartlink 
product immediately and consult your dealer.

When you have tested everything, refi t your head unit. Take care 

not to 

trap any wires

 or 

the Dension product

Please mount the module away 

from heat or damp surfaces.

Refi t of the Head Unit is the reversal of the removal process for your 
specifi c vehicle, as per your manufacturer’s instructions.

Display confi guration for “

NTSC

” standard

Microphone MHL / HDMI cable

Smartlink
hardware

Smartlink

RCP

Audio / Video

Radio

Power, ground and

mute wires

Connector

Port

Video Brake -in

Audio / Video AUX In

Version 1.0

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