Honda Ridgeline. Manual — part 539
03
04
05
Monitor Check
RGB Color
Gray Tone
23-122
Navigation System
System Diagnostic Mode (cont’d)
Monitor Check
RGB
Gray Tone
Return
RGB Color
Gray Tone
White Raster
Color Pattern
Black Raster
Return
Return
Monitor Adjustment
Touch Panel Check
Touch Panel Calibration
Red
Blue
Green
Overview of navigation display
• The illumination input from the gauge brightness
control provides back lighting for the buttons
surrounding the screen and the illumination ON and
OFF signal for the display backlighting.
• The illumination cancel signal is provided by the
gauge via B-CAN to the HVAC unit, then to the
navigation unit via the U-ART bus.
• The navigation display communicates with the
navigation unit over its own GA-Net bus. Information
is sent to the navigation unit whenever the user
activates the touch screen, or buttons. Information
sent by the navigation unit to the navigation display
includes commands to control the LCD back light.
• The security system protects the navigation display
by daisy-chaining the security signal through it, and
then passing the signal to the audio unit.
• The illumination input from the gauge brightness
control provides back lighting for the buttons
surrounding the screen.
These screens allow you to troubleshoot the navigation
display. Select the item you want to troubleshoot, and
follow the diagnostic instructions.
• RGB Color
• Gray Tone
• White Raster
• Black Raster
• Color Pattern
• Monitor Adjustment
• Touch Panel Check
• Touch Panel Calibration
This screen verifies that the navigation display is
receiving the video (R, G, B and Composite sync)
signals properly. The three primary colors should all be
shown without distortion. The combination of all three
should produce a central white section. If any of the
colors are missing, troubleshoot the color signal
(see page 23-101). If the picture has lines in it, or scrolls
horizontally or vertically, troubleshoot for a Composite
sync problem (see page 23-103).
This screen looks for problems with contrast. You
should be able to see the changes from bar to bar
across the scale. It is normal for the 2 bars on either
side to appear the same.
06
07
08
03
10
White Raster
Black Raster
Color Pattern
Monitor Adjustment
Touch Panel Check
23-123
White Raster
Black Raster
Color Pattern
Return
Return
Return
Red
Green
Blue
Monitor Adjustment
Return
(0, 0)
(0, 0)
Setting
Default
Default
Tuning
Return
The entire display must be white.
The entire display must be black.
The chart below shows the colors being used for the
Map and Menu screens. This is for factory use only. To
check the color signal use the ‘‘RGB’’ test.
This allows you to center the navigation display. Use
the joystick to move the picture up/down or left/right. It
is unlikely that you will ever need to adjust the monitor
position. The ‘‘Default’’ button will reset the display
position to factory specifications. The factory default is
0, 0.
The panel touch sensing system consists of a touch
sensitive resistive membrane covering the display.
Contrary to other systems using infrared beams, the
screen has to be physically ‘‘touched’’ to make it work.
The display has the capability of an almost infinite
number of touch locations. However, to be compatible
with earlier systems, the software only senses the
locations shown on the diagnostic screen below. Every
possible touch button position is shown on this
diagnostic screen. Touching one of these areas should
cause its color to reverse, and sound a ‘‘beep’’. If the
touch locations are off slightly (by less than one touch
location), use the ‘‘Touch Panel Calibration’’ diagnosis
to re-align the touch ‘‘zones’’ with the screen image. If
any areas of the screen either don’t respond, or
respond at some other location when touched, then
replace the navigation display.
NOTE: Unlike earlier screens that used infrared sensors,
direct sunlight will not affect this test.
(cont’d)
+
+
+
+
+
11
12
Touch Panel Calibration
Unit Check
23-124
Navigation System
System Diagnostic Mode (cont’d)
Push Map/Guide to reset the parameter.
Push Joy stick to set it.
Return
Return
Display
Radio
Navi ECU
PC Card Info.
Hard Key
Select Check Units
The display screen uses a touch sensitive membrane
instead of fixed infrared ‘‘beams’’. This means that
every location of the entire surface of the display is
touch sensitive.
For the display to be compatible with earlier navi
systems, the system software creates ‘‘touch zones’’
emulating the touch ‘‘switches’’ created by the
intersections of 20 vertical and 10 horizontal infrared
beams. This diagnostic allows alignment of these
artificially created ‘‘zones’’ with the location of the
button images on the screen.
Normally this should never need adjustment, and it is
used only to adjust the touch locations for parallax (the
touch locations appear different when viewed at an
angle). However, if an adjustment is necessary, follow
this procedure:
• The screen consists of four test areas consisting of a
‘‘
’’ button and an adjacent box with a black border.
Touch the four ‘‘
’’ buttons to verify alignment. If,
when you touch a ‘‘
’’ button, the adjacent box
becomes yellow, then do the following. Continue to
hold the ‘‘
’’ button, and simultaneously move the
joystick to shift the screen slightly from side to side,
or up and down. The adjustment is complete when
you can touch all four ‘‘
’’ boxes and none of the
adjacent boxes becomes yellow.
• To store any changes you make, push in the joystick.
• To reset the touch zones to the factory default, touch
the Map/Guide button.
• Press Return to exit the diagnostic.
To start the test, select the item you want to check.
• Display
• Radio
• Navi ECU
• PC Card Info
• Hard Key
13
14
15
−
−
−
Display
Radio
Navi ECU
23-125
Display
Radio
Return
Connection
ROM
RAM
6CD Connection
OK
OK
OK
040423
Close
Version
OK
Display Lid
OK
Return
Connection
OK
6CD Connection
OK
OK
Navi ECU
Return
OK
V
RAM
D
RAM
GPS
DVD
ROM
Serial No.
OK
OK
-
ABC011234567
OK
Mem Clear
This performs additional checks on the communication
bus between the control unit and the display. In
addition, the internal electronics and touch screen
functionality are confirmed.
• When the connection is NG, first check for loose
terminals at the navigation unit, the navigation
display, the audio unit, and the CD changer
connections. Next check for an open or short in the
communication line between the navigation unit, the
navigation display, the audio unit, and the CD
changer. If you find the line to have an open or short,
replace the affected shielded harness.
• If the ROM or RAM is NG, replace the navigation
display.
• The version represents the software version in the
display.
• Six CD connection checks the status of the connection
between the CD changer and the audio unit. An NG
represents an open in that circuit.
• Display Lid indicates if the front display panel is Open
or Closed. This should always say, ‘‘Close’’.
If the NG is indicated, check for loose audio unit
connectors.
This screen looks for problems with the navigation unit.
When you initiate this diagnostic, the navigation unit
may delay up to a minute while the diagnostic runs.
• If ‘‘V-RAM’’ or ‘‘D-RAM’’ is NG, then replace the
navigation unit.
• If ‘‘GPS’’ indicates ‘‘NG (ANT)’’, then check the entire
GPS antenna wire from the navigation unit to the
antenna. If the wire is crushed or damaged, try a
known good antenna. If this diagnostic reads OK,
then order a new GPS antenna. If the diagnostic still
reads NG (ANT), then replace the navigation unit.
• ‘‘DVD ROM’’ represents the database version on the
DVD. You can also find this information in Setup by
selecting System Information.
• ‘‘Serial No.’’ should be the same as the serial number
found on the underside of the navigation unit. You
need this number to obtain the security code from the
Interactive Network (iN) system.
• Mem Clear is for factory use, and should never be
used unless instructed by the factory. Accidental
selection will erase the customer’s personal data,
PINS, and settings. If selected, a popup box appears
asking if you want to clear the memory. If so, select
‘‘Yes’’.
(cont’d)
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