NAV-TV MB20, MB25 User Manual
MB2.0 / 2.5 (+) INSTRUCTIONS
*Note* This NAV-TV Corp. interface is a selfprogramming module. If the programming process
is interrupted once initiated the piece will have to
be replaced at your expense. DO NOT INTERRUPT
THE PROGRAMMING MODE OF THIS INTERFACE!
Illustration A
Video Input 1 & 2
Illustration B
Attached toggle switch:
Select 4:3 Ratio / 16:9 Ratio.
Note: This switch should only
be used with Accessory off.
3)Blue wire: Data wire
4)White wire: Program Wire
DB9 connector for
Video In/Out Wires
Illustration C
18 Pin Connector
18
9
17
8
16
7
15
6
14
5
13
4
12
3
11
2
10
1
3. Left Audio
Input Ground
2. Left Audio
Input Signal
17. Blue wire on MB20 / MB25
1. White wire -program wire
Questions? Need vehicle-specific
wiring information? Tech support
available through our toll-free number-
1-866-477-3336
12. Right Audio
Input Ground
11. Right Audio
Input Signal
for MB25 only.
Power Plug
1)Red wire: Accessory
2)Black wire: Chassis ground
RGBs(4-wire setup) / RGsB(3-wire
setup) selector. For Mercedes, this
switch will be in the RGBs position.
+
Brightness Up / Down
Brightness Reset- press both
simultaneously to reset to default
MB20
Blue wire: Pin 17 on the large 18 pin connector behind the
radio. If there is already a wire in this slot, then simply tap into
it. If this slot is empty, use the wire that we’ve provided for you
on the 18 pin dummy plug. See Illustration C. *Note: We will
provide you with a small 18-pin “dummy” connector which is
used as a place holder. Simply remove each wire, one at a time
and re-insert them into the same pin-position on the existing
18-pin connector behind the radio.
Audio leads are in the small place holding dummy plug.
White wire: Cut wire located at Pin 2 of Factory 8-pin Power-
Plug (usually yellow/white stripe). Connect White wire directly
to pin 2. Note: Pin 2 is the wire closest to the release lever of
the plug. After programming is done, reconnect the factory
wire.
Remember- not the 18 pin connector, but the power plug.
Small square connector: Plug directly behind the radio. This
new plug will be replacing an existing identical plug. Simply
remove the only 2 wires on the original plug and re-insert them
into the same pin-position on your new connector.
Note: The first time you power the MB20 up, it will
automatically go into programming mode. You should see
a color bar on the screen. Let it cycle through
programming. It will stop when programming is
completed. Your blank /SAT button is now activated.
The blank button (or “SAT” button, depending on year and
model) will activate the MB20.
1. Red wire: Accessory power. This
is not a trigger for video input 1.
This is main power for the unit
since it is digital.
2. Black wire: Constant ground.
3. Blue wire: Wire this according
to the MB20 or MB25 Instructions
below.
4. White wire: Wire this according
to the MB20 or MB25 Instructions
below.
5. Green wire: +12 Positive trigger
for 2nd video source.
Attached toggle switch: Select 4:3
aspect ratio (small screen) or 16:9
aspect ratio (wide screen). Use this
switch only while unit is powered
down
MB25
Blue wire: Pin 17 on the large 18
pin connector behind the radio. If
there is already a wire in this slot,
then simply tap into it. If this slot is
empty, use the wire that we’ve
provided for you on the 18 pin
dummy plug. See Illustration C.
White wire: Cut wire located in
Pin 1 of Factory 18-pin connector.
Connect radio side to White wire.
(Illustration C)After programming
is done, reconnect the factory wire.
Small square connector with RCA
leads is provided for audio.
Plug the round connector coming
from MB25 into the radio.
Note: The first time you power the
MB25 up, it will automatically go
into programming mode. You should
see a color bar on the screen. Let it
cycle through programming. It will
stop when programming is
completed. Your blank /SAT button
is now activated.
The blank button (or “SAT”
button, depending on year and
model) will activate the MB25.
Loading...