Programme After Market Services (PAMS)
Technical Documentation
NHB–3 INSTALLATION
INSTRUCTIONS
PAMS
Technical Documentation
AMENDMENT RECORD SHEET
NHB–3
Installation Instructions
Amendment
Number
Date Inserted By Comments
Original 26/97
2
PAMS
Technical Documentation
INSTALLATION INSTRUCTIONS
Contents
Installation Instructions 4
Light Car Kit Installation 5
Power Distribution 6
Positioning 7
NHB–3
Installation Instructions
Original 26/97
3
PAMS
Technical Documentation
Installation Instructions
This installation guide has been prepared to provide the basic information.necessary to install this car kit. This guide is not intended to be definitive, because different types and models of vehicles will require different installation
work. The information given is for general guidance only.
The terms of warranty demand that this car kit be installed by an experienced
installer and only genuine Nokia parts are used. An end user should never attempt to install this car kit without professional assistance as the installation requires special tools and knowledge.
Please refer to the telephone’s User’s Manual and Accessory Guide for instructions on the telephone’s operation, care and maintenance, including important
safety information.
Note: Read the warnings below before beginning the installation
procedure.
WARNINGS
NHB–3
Installation Instructions
– ENSURE THAT THE VEHICLE’S BATTERY IS DISCONNECTED BEFORE YOU START
THE INST ALLATION PROCEDURE, AND THAT IT REMAINS DISCONNECTED DURING
THE PROCEDURE.
– DO NOT SMOKE OR USE OPEN FLAMES WHEN WORKING NEAR THE VEHICLE’S
FUEL SYSTEM.
– ENSURE THAT THE VEHICLE’S ELECTRICAL CABLES, HYDRAULIC LINES, FUEL
LINES, AND SAFETY EQUIPMENT, ARE NOT DAMAGED DURING INSTALLATION.
– ENSURE THAT NORMAL CONTROL AND OPERATION OF THE VEHICLE IS NOT IM-
PAIRED BY THE INSTALLATION, PARTICULARLY THE BRAKES, AND STEERING.
– ELECTRONIC AND OTHER SOPHISTICA TED SYSTEMS (eg SPEED CONTROL, ABS
ANTI–LOCK BRAKE, FUEL INJECTION, NA VIGATION, AND AIR–BAG SYSTEMS) ARE
RELATIVELY IMMUNE TO MALFUNCTION CAUSED BY NEARBY RADIO TRANSMISSIONS. HOWEVER, SHOULD YOU EXPERIENCE FALSE OPERATION OF THESE
SYSTEMS OR ARE IN ANY DOUBT WHA TSOEVER AS TO THEIR FUNCTIONALITY,
PLEASE CONSULT THE VEHICLE’S DEALER.
– THE CAR KIT IS SUITABLE FOR USE ONLY IN VEHICLES WITH A 11..32 V NEGATIVE
GROUNDING. USE ON OTHER SUPPLY VOLATAGES OR ALTERNATIVE POLARITY
WILL DAMAGE THE EQUIPMENT.
– THE PHONES SHOULD NOT BE LEFT SWITCHED ON FOR EXTENDED PERIODS
WITHOUT RUNNING THE VEHICLE’S ENGINE. FAILURE T O COMPLY COULD DRAIN
THE VEHICLE’S BA TTERY .
Original 26/97
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PAMS
Technical Documentation
Light Car Kit Installation
MOUNTING PLA TE
MKE–1
MOBILE HOLDER
MBH–6
NHB–3
Installation Instructions
SWIVEL MOUNT
HHS–1
CIGARETTE LIGHTER
CHARGER LCH–2
Item: Remarks: Type:
Mobile holder MBH–6
Cigarette lighter charger LCH–2
Mounting plate (w/16 screws) MKE–1
Swivel mount (w/6 screws) HHS–1
Original 26/97
5
PAMS
Technical Documentation
Power Distribution
The main supply for car kit is obtained from the vehicle battery, the supply voltage may vary between 9 and 16 volts. Both the positive voltage and the
grounding are taken directly from the battery, unless the vehicle has other main
voltage than + 12 V. This minimizes the risk of disturbances from or to the telephone as well as guarantees loss–free power distribution.
The connections to the battery should be carried out with care. Both the negative and positive leads have 4 A fuses, which must always be used. If a fuse
blows, replace it only with the same type and size fuse.
The power cables should be routed so that possible sources of disturbances
are avoided. Also ABS–sencors and like should be avoided as far as possible.
If the vehicle has + 24 V electrical system (trucks, all–terrain vehicles , etc.), an
external voltage reducer must be used. Since the properties of the reducer are
critical, it is recommended to use a reducer supplied by the manufacturer. This
reducer has good protections against transients produced by vehicles electrical
system and it is also capable to maintain stabile output during rapid changes in
load current.
NHB–3
Installation Instructions
Some vehicles have a main switch (e.g. gas trucks), which separates the vehicles chassis from the negative lead of the battery. Under no circumstances do
not pass this switch, i.e. the grounding of the reducer must be taken from the
body of the vehicle, NOT
DO NOT INSTALL REDUCER:
TO ENGINE COMPARTMENT
–
– WHERE THERE ISN’T ADEQUATE AMOUNT OF AIR FOR COOLING (UNDER THE
CARPET, ETC.)
– WHERE THERE IS RISK OF MOISTURE (CONDENSATED WA TER, ETC.)
Original 26/97
directly from the battery.
6
PAMS
Technical Documentation
Positioning
The best guide for positioning the units is your own experience, skills and common sense. However, some aspects requiring special attention will be discussed here.
The positioning of the holder unit is the most important factor when trying to
achieve the most comfortable usage for the user. The location of the holder unit
should be selected so that the visibility of the phone display is good in every
lighting condition, but not so that the drivers attention gets too easily stolen
from driving itself. The holder unit should be located so that the driver can easily reach the keypad. Under no circumstances should the holder unit obstruct
the driver from operating car controls (i.e. handbrake, etc.).
If handset is used like a phone & a holder unit, the handset’s place should be
located according same rules as holder unit is located. If using handset, the
location of the phone is not so critical. In this case location of the phone is determined by the connecting cables and the the obtainable of the phone.
Junction box can also be installed in hidden location, since usually there is no
need to detach cables in normal operation. Remember allthough that the box
doesn’t like moisture or mechanical pressure.
NHB–3
Installation Instructions
Handsfree microphone can usually be installed in the sunvisor of the driver, or
in the A–pillar. The main idea is to get the microphone quite close to the drivers
mouth, and also to attach the microphone in surface that doesn’t carry the mechanical vibrations of the car body, since these will increase the background
noise when using handsfree.
The loudspeaker isn’t so sensitive for vibrations, thus it can be located more
freely. The main idea is to optimize two requirements: The driver should hear
the signal from the loudspeaker without any special efforts, but the the attenuation between loudspeaker and microphone should be as high as possible, i.e.
they must ”look” in other directions in order to minimize the acoustic feedback.
The system cable routing isn’t usually critical; however it should not be routed
next to electronic ignition systems or ABS braking systems wires or boxes to
prevent interference to important automotive electrical components. Take also
care not to run the cable so that it’s gets under any mechanical stress e.g. under seats or against sharp edges of car chassis.
The customer is paying for the installation and expects to get a very good return for his money. Therefore installers first duty is to discuss all the locations
with him/her. Sometimes the customers may have starnge ideas of the locations. Then it is your job to point out politely why these solutions won’t work.
Original 26/97
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