
In this test we have been using Lark Freebird 4.3 inch NAV (Problem only Polish maps), but you can use
whatever NAV in the marked as long it will fit inside the RTI unit where the display have been connected
and has a “Push” bottom to start. We also has made this so if you save the old display and some screws
and the original plastic front you can if you want reverse everything and the Volvo RTI will work as before.
This in case Volvo sometimes maybe do something, but of course it is long time since we stopped to
belive in Santa Clause, but you never know, maybe somebody makes something useful in the future. It is
pitty that with this we lose the back camera options, which you easely can connect to the original display
in the RTI. If somebody needs help or have comments you are welcome to contact us at Special
Machines/Electronic Department by e-mail in english, swedish or norwegian: smed@nasab.com
We wish you Good luck!
Electronic Schema NAV/RTI
Now we will show you the electronical pc board and schema. You can use 12V DC version or the 5V DC
version. Both is working, but we chosed the 5V DC model because we want to be sure not to get +12V DC
into the RTI standard Electronic or the NAV by misstake, so if you want to be sure, use the 5V DC version.
This electronic will make the NAV start when the RTI unit is going up and close the NAV automatically
when the RTI unit goes down. For the external Audio Sound modification of the TV tuner for NAV you can
find under. http://www.nasab.com/Volvo/External%20Sound%20NAV-RTI%20Volvo%20Part%20One.pdf
12V version:
Just eliminate the LM7805
Nas ab
R1
47K
RC05
R2
1KRC05
R3
100K
RC05
C1
220uF
RAD-315
C2
100nF
CK05
F1
1AT
1
2
J1
CONN02
GA1247B
1
GN D
2
IN
3
OUT
T1LM7805
TO-39
D1
1N4148
DO-7
D2
1N4148
DO-7
Q1
BC337
TO-92
S1
SW_RTI-Down
S2
SW_RTI-Up
S3
Switch
D3
1N4148
DO-7
S2
Switch
S1
Switch
0V
+12V from pin 11 RTI connector (Vdd)(Battery).
0V from pin 16 RTI Connector. (0V, ground)
+12 to USB NAV charger from pin 13 RTI connector (Ignition on).
Switch only in case of if the NAV starts in wrong
sequence. (Sequence Reset Bottom).
Or you can by sending the RTI unit up and down
fast even get the NAV to start at the right
sequence. NAV have 10 sec to close in auto mode.
Be sure you check which
side of the push bottom
in NAV is connected to
0V.
NAV/RTI Electronic PC Board 4-900054
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