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.