Volvo RTI Instruções de Operação descarregar pdf (Página 22)

right side from the power connector to connect your Video or Back Camera. Then you can use this IC to

setup the switches. But as we said it will be in another project.

For the time being we will use the TV mode.

Link to Replacement of RTI Display Unit to NAV in Volvo (RTI CD Early model):

http://www.nasab.com/Volvo/NAV%20for%20RTI%20Volvo.pdf

Tuesday, March 18, 2014

To use the IC switch for voice guide we have discovered without Melbus Protocol it will not work as long

as we would try to use the over ride mode of the original NAV for sound, and this over ride is not in the

TV tuner, only back camera, Video is operated in this IC switch, we have to go to the central unit of the

RTI in the trunk to see if we can solve this for the NAV voice guide.

But we have been testing the TV mode and it works as follows.

If you start the RTI with the Navigation mode then you will not have the sound from the NAV in the

speakers before you shift to TV in the radio module. If you then change on the radio to CD Changer or

Radio or whatever the sound will shift to what the radio are showing, but you lose the NAV voice guide

information. But the navigation is still working. Every time you want to listen to the voice guide you have

to tune back the radio module to TV. If you start the RTI in TV mode, the NAV will start and you will have

the NAV voice guide sound in the speakers. But as soon as you turn the radio to CD, CD Changer, Radio

or whatever it will shut down the RTI and the NAV.

We also have discovered you have some background sound in the speakers because of the TV tuner.

This sound is the sound you get on a normal TV old PAL system when you did not have any station

locked. In Swedish we call it “Brus” sounds like “SSSSSHHHHHH”. We have also discovered there is some

high frequency from the NAV in the background. We will try to find out how we can get rid of this by

some filter. Else the equipment works very well, no problem at all so far. Except you have to tune the

radio to TV for the sound from NAV voice guide.

Updates:

We got rid of the high frequency and the other back ground sound which we had in the speakers when

we had sound from NAV true the TV tuner when we made a 0,75mm cable between the ground (0V) on

our special NAV/RTI Electronic PC Board 4-900054 to the metal chassis on the RTI unit.

We will be back as soon as we have some more news on this topic.

Sunday, 5 October, 2014,

Someone sent us an e-mail and told us “If you take out all CD you just have to press ENTER for up and down

of the RTI module”, Thanks to this clever guy.

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Volvo RTI Instruções de Operação Página 22