Air conditioner (evaporator and
blower unit)
Air conditioner is inside of the evap鄄
orator, which is back of the glove
box. This unit can reduce foreign ma鄄
terials that come into vehicle and fil鄄
ter with air.
Main points for operation院
音 When you get into the vehicle,
and the temperature is high, you can
open the window to discharge warm
air.
音 When using the air conditioner,
close all the windows to block the
heat outside of the vehicle.
音 When driving on jammed region
slowly, you should shift to low gear.
This can increase the engine speed
and the speed of air conditioner
compressor.
音 When driving on steep road, you
should turn off the air conditioner to
avoid engine overheat.
音 In winter or in the season when air
conditioner is not often used, the air
conditioner must be operated once a
month. That will help lubricant circu鄄
lation and keep the normal operation
of the system.
Stereo unit
How to operate audio of auto鄄
mobile?
indoor air
outdoor air
filter
indoor air blower fan
evaporator core
heater core
Caution院
音 The air filter should be re鄄
placed every year or each
20,000 km (12,000 miles).If the
vehicle runs on bad road,such
as dusty or cragged road, the
air filter should be checked a鄄
gain and again, and it should be
replaced when necessary.
音 If the ventilating air reduces
suddenly, you must ask the au鄄
thorized JAC dealer to check.
FM receiving station
Ionosphere
Characteristics of JAC vehicle
52
AM and FM signals are sent from
transmitting stations around the city.
After the antenna of the radio re鄄
ceives the signal, the sound will be
sent out from microphone. If high sig鄄
nal touches your vehicle, the radio
can operate exactly. If the signal is
low or unclear, it may be related to
the distance, and related to the
building, bridge and other structures
that block off signal.
AM receiving station generally has
better receiving effect than FM, be鄄
cause AM wave is transmitted at low
frequency. These low frequency
waves can follow the ionosphere of
earth curvature.
In addition, they can get round barri鄄
er to provide better signal. Thus, in
wide range, AM signals can be bet鄄
ter received than FM radio signals.
FM radio receives high frequency
signals that can not bend with the
earth curvature. So, FM radio can on鄄
ly receive signal which is near to
service station. In the same way, FM
signal will be influenced by high
building, high mounting or other bar鄄
rier. These reasons may lead to un鄄
clear sound. The following phenome鄄
na are normal; do not regard them as
radio's malfunction.
音 Sometimes the sound is strong,
sometimes the sound is weak --
when your vehicle is far from service
station, the signal will become weak
Ionosphere
AM receiving station
FM radio station
high mountain
high building
region with barrier
region without
barrier
steel bridge
53