Kenwood KNA-G620T User manual

nn WARNING
Failure to avoid the following potentially hazardous situations could result in serious injury or fire.
Do not attempt to install or service the KNA-G620T by yourself. Installing or servicing the unit without training and experience in electronic
equipment and automotive accessories may be dangerous and could expose you to the risk of electric shock or other hazards.
When extending ignition wires, battery wires, or ground wires, use automotive-grade wires or other wires with AWG 18 (0.75 mm
2
gauge) or
greater to prevent wire deterioration and damage to the wire coating.
If the unit starts to emit smoke or unusual odors, turn off the power immediately and consult your Kenwood dealer.
Keep small articles (like screws or batteries) out of the reach of children. If any such object is accidentally swallowed, consult a doctor
immediately.
nn CAUTION
Failure to avoid the following potentially hazardous situations may result in injury or property damage.
Be sure to ground the unit to the chassis of your vehicle.
Secure all wiring with cable clamps or electrical tape. Insulate unconnected wires, do not allow any bare wiring to remain exposed.
Do not let unconnected wires or terminals touch metal on the vehicle or anything else that can conduct electricity.
Do not open the top or bottom covers of the unit.
The KNA-G620T is not waterproof.
January 2010 Part Number 190-01160-02 Rev. A Printed in Taiwan
KNA-G620T
GPS NAVIGATION SYSTEM INSTALLATION MANUAL
B54-4791-08
190-01160-02_ML.indb 1190-01160-02_ML.indb 1 1/8/2010 10:17:26 AM1/8/2010 10:17:26 AM

- 2 -
What’s Included
GPS antenna and
metal plate
main unit M3 x 12 machine
screws (4)
M3 nuts (4)
wiring harness
hook-and-loop
fasteners (2)
owner’s manual installation manual warranty card caution card
M3 x 12 thread-
forming screws (4)
FM antenna
Installing the Main Unit
Use the screws or the hook-and-loop fasteners provided to mount the main unit in the vehicle. Select a location that allows you to
access the SD card slot on the unit.
nn CAUTION
Do not install the unit where it will be exposed to direct sunlight, excessive heat or humidity, dust, spills, or liquids.
Check for cables or other parts underneath the floor mat before cutting the floor mat.
Installing the GPS Antenna
nn CAUTION
Do not paint the antenna. This will impair or disable signal reception.
Remove any object or accumulated snow, etc., from the top of the antenna. It will reduce reception strength.
Do not pull the cord when removing the antenna or adjusting its position. This can cause a short or break the wires.
The permanent adhesive on the back of the metal plate is extremely difficult to remove after it is installed.
The GPS antenna can be installed either inside or outside the vehicle. It should be mounted horizontally for best GPS reception.
The GPS antenna must have a clear view of the sky. If you install the antenna inside the vehicle, place it close to a window. GPS
signals can pass through glass but not through metal. Refer to the image on the next page for recommended places to install the
antenna. Place the GPS antenna on a metallic surface, such as the roof of your vehicle, for best reception. If a metallic surface is not
available, mount the GPS antenna on the enclosed metal plate. See the next page for further instructions.
Installing the FM Antenna
NOTICE
For best reception, position the antenna in the
vertical orientation. Keep the last several feet of
of the FM antenna several inches away from any
metal object or structure.
The FM traffic antenna should be installed inside
the vehicle. Plug the FM antenna socket into
the FM antenna connector on the KNA-620T.
Completely deploy the antenna to its full length. See the diagram on the next page for more information.
FM Antenna Installed Horizontally
Dashboard
Windshield
KNA-620T
FM antenna connector
FM antenna
FM Antenna Installed Vertically
Dashboard
Windshield
KNA-620T
FM antenna connector
FM antenna
190-01160-02_ML.indb 2190-01160-02_ML.indb 2 1/8/2010 10:17:29 AM1/8/2010 10:17:29 AM

- 3 -
Steps to Install the KNA-G620T 1. Remove the key from the vehicle ignition and
disconnect the negative battery cable.
2. Install the GPS antenna. Refer to the tips on the
previous page.
3. Install the FM antenna. Refer to the tips on the
previous page.
4. Connect the wiring harness to your vehicle in the
following order: ground, battery, ignition.
5. Connect the wiring harness to the main unit. 6. Install the main unit. Refer to the tips on the
previous page.
7. Reconnect the negative battery cable.
nn
CAUTION
If your vehicle ignition does not have an ACC position, connect the ignition wires to a power source that can be turned on and off with the ignition key. If you connect the ignition wire to a power source with a constant voltage supply, such as battery wires, the navigation system could drain your battery. If you are installing an FM antenna, ensure that your installation does not interfere with the airbag system on your vehicle.
To mount the GPS antenna inside your vehicle: 1. Clean your dashboard or other surface. 2. Peel the backing off of the adhesive on the bottom of the metal
plate.
3. Press the metal plate down firmly on your dashboard or other
mounting surface. You can bend the metal plate to conform to a curved surface, if necessary.
4. Place the GPS antenna on top of the metal plate.
nn
WARNING
Do not connect the yellow wire directly to the vehicle battery. Connecting directly to the battery may cause the wire insulation to fail and may pose a risk of short circuit and electric shock.
SD card
GPS antenna
To display unit (NAV I/F terminal)
Black To vehicle chassis Red To ignition (12 Vdc) Yellow To battery (12 Vdc)
Car fuse box
(main fuse)
Car fuse box
Ignition key switch
Installing the GPS Antenna
Better (trunk
of vehicle)
Best (roof of vehicle)
Good (inside car on dashboard)
NOTE: The 2010 and display unit can be connected to this system. To check the connectable models, go to www.kenwood.com/cs/ce.
FM Antenna
2A 2A
190-01160-02_ML.indb 3190-01160-02_ML.indb 3 1/8/2010 10:17:30 AM1/8/2010 10:17:30 AM

- 4 -
Acquiring GPS Signals
The first time you turn on the KNA-G620T, you must wait while the system acquires satellite signals for the first time. This process
could take up to several minutes. Ensure that your vehicle is outdoors in an open area, away from tall buildings and trees, for fastest
acquisition. After the system acquires satellites for the first time, it will acquire satellites quickly each time thereafter.
Changing the Fuses
If you need to replace a fuse on the red or yellow wires, to prevent a short circuit, ensure that the wires are not touching. Then
replace the old fuse with a new 2 A fuse.
nn CAUTION
When replacing a fuse, use only a new fuse with the prescribed rating. Using a fuse with the wrong rating may cause damage to
your unit. To prevent short circuits, disconnect the wire harness before replacing a fuse.
Specifications
General
Operating Temperature: From -20°C to 70°C
Storage Temperature: From -40°C to 85°C
Operating Voltage: 9.5 Vdc to 25 Vdc
Current Consumption: 0.16 A typical at 13 Vdc (Max 1.0 A at 13 Vdc)
ACC off Current: 70 uA typical at 13 Vdc
Dimensions: (W ×H ×D) 165 ×28.5 ×107 mm
Weight: 186 g
Map Storage: Internal non-removable memory and optional removable SD card (City Navigator®map data)
Connectors: System/power, GPS antenna, SD card slot, Mini-B for optional FM traffic receiver, Fakra for FM traffic receiver
Navigation
Frequency: 1,575.42 MHz
Acquisition Times*:
Warm: < 1 second
Cold: < 38 seconds
AutoLocate®:< 45 seconds
*On average for a stationary receiver with an open sky view
Update Rate: 1/second, continuous
GPS Accuracy:
Position: < 10 meters, typical
Velocity: 0.05 meter/sec RMS
Antenna: External GPS antenna requires metal surface 60 x 60 mm or larger, such as a car roof or the included metal plate. A
larger metal mounting surface improves GPS reception.
190-01160-02_ML.indb 4190-01160-02_ML.indb 4 1/8/2010 10:17:30 AM1/8/2010 10:17:30 AM