Range Rover 2. Electrical Manual — part 185
PREMIUM RADIO
E6
24
CIRCUIT DIAGRAM
REV: 09/2001
Premium Radio
Z293
DSP Amplifier
23
22
2
RG
1
1
C0726R
2
C0726R
K210
Right Rear
Bass Speaker
13
21
8
7
1
C0445R
2
C0445R
K212
Right Rear Mi-
drange Speaker
C0310
C0308
C0491
GR
2
1
6
5
C1371
C1387R
C1369
C1386R
RW
WR
PREMIUM RADIO
E6
25
CIRCUIT DIAGRAM
REV: 09/2001
4
2
Z289
Navigation
Computer
13
Z293
DSP Amplifier
7
SO
C0491
18
YO
19
OY
7
8
9
C1378
C1350
Premium Radio
PREMIUM RADIO
E6
26
CIRCUIT DIAGRAM
ADD: 11/99
5
Z111
Radio
6
Z293
DSP Amplifier
30
YB
C0491
38
Y
1
2
C1374
C0092
Premium Radio
3
4
17
RB
9
R
1
2
C1570
10
27
C0922
KB
C1424
9
10
C0308
C0310
C1378
NAVIGATION SYSTEM
E9
CIRCUIT OPERATION
1
REV: 09/2001
CIRCUIT OPERATION
The following components make up the navigation
system:
D
Navigation Computer (Z289)
D
GPS Antenna (Z292)
D
Display and Control Unit (Z291)
Navigation Computer (Z289):
The Navigation Computer (Z289) is located in the
right hand side of the luggage compartment,
attached to a bracket. The Navigation Computer
(Z289) is the main component in the navigation
system and receives input from the BECM (Z238)
and the GPS Antenna (Z292). The Navigation
Computer (Z289) contains a solid state piezo gyro
which measures the motion in the vehicle around its
vertical axis. The gyro operates on the principle
known as the Coriolis force (Refer to the workshop
manual for detailed operation).
Using the inputs from the BECM (Z238), the GPS
Antenna (Z292) and the gyro sensor, the Navigation
Computer (Z289) can determine the vehicle‘s current
position, direction and speed.
The Navigation Computer (Z289) also houses the
CD–ROM drive. This drive is used to read map data
from country specific CD’s and also to load updated
software into the computer.
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