Discovery electrical Manual - part 35

HORNS

E5

1

CIRCUIT DIAGRAM

S2089

30

F 4

30 A

E201

See Fuse Details

P125
Engine Compart-
ment Fuse Box

PN

C101

K189
Horn Relay

30

C283

85

PO

86

87

C283

PG

S2057

S288

See Ground Dis-
tribution

1

C169

2

C169

A

E5-2

K128
Left Horn

K134
Right Horn

1

C168

2

C168

30

85

86

87

B

B

1

HJ5

E200

S2016

HJ10

See Ground Dis-
tribution

HORNS

E5

2

CIRCUIT DIAGRAM

E5-1

PO

5

C2010

PB

6

PO

7

C201

Z119
Rotary Coupler

X145
Main Lighting
Switch

0

[1]

0

[1]

X258
Horn Switches

With Cruise Con-
trol

Without Cruise
Control

1

C2037

PB

PB

1

C2036

1

C2038

PB

0

[1]

X20014
Horn Switch

1

C2037

A

7

C201

X145
Main Lighting
Switch

S2117

Not used

PO

5

C274

Z163
Theft Alarm Unit

S2117

NAS

Except NAS

Steering Column
Horn Brush/Slip
Ring

NAS

Except NAS

RADIO (EXCEPT NAS)

E6

CIRCUIT OPERATION

1

CIRCUIT OPERATION

The audio system consists of a new head unit, and
for mid/high– range, a subwoofer and subwoofer
amplifier. For mid– and high–range, the system is
also equipped with a radio waveband switch and a
tune switch, a volume up and a volume down switch
which are located on the fascia next to the
instrument cluster.

The control head is equipped with an anti–theft
feature which makes the unit inoperative once
battery power is removed. A security code must be
entered to restore power to the unit. On every level
the system is equipped with two rear and two front
speakers. Optional front tweeters are available for
high line radio.

Battery voltage is provided to the control head at all
times through the P wire. In addition to monitoring
the anti–theft feature, this input keeps the preset
station memory alive. Whenever battery power to the
unit is lost, the anti–theft code must be entered and
the preset stations must be reprogrammed.

When the Radio (Z111) and the ignition are turned
on, the voltage signal through the LGO wire and the
control head  wakes up  the unit. The Radio (Z111)
plays, the VF display comes on, and the control unit
buttons illuminate. The VF display is dimmed when
the headlights or park lights are turned on. When the
lights are on, voltage from fuse F8 of the Fascia
Fusebox (P126) is applied to the Radio (Z111)
terminal 6, connector 230 signalling the Radio (Z111)
to dim the display.

Side Screen Antenna

The antenna is now printed into the rear side screen
on four door models. For America and Japan the
element is fitted in both rear side screens, known as
diversity antenna system. Other markets have a
single element in the right hand side screen only.
Diversity reception means that if vehicle movement
results in a loss of signal due to reflections from
buildings (known as multipath distortion), the radio
will switch to the antenna receiving the strongest
signal. This results in less interference and better
stereo performance.

 Antenna Amplifier

New antenna amplifiers are located behind the
headlining above the side screen antenna(s). Right

hand side fitment is an FM + AM amplifier, left hand
side, diversity, is an FM only amplifier.

 Subwoofer

The subwoofer unit is located in the right hand side
of the luggage compartment. It amplifies frequencies
between 20 and 150 Hz to give an enhanced bass
sound.

 Subwoofer Amplifier

The amplifier is fitted on top of the subwoofer unit.

RADIO (EXCEPT NAS) (LOW LINE)

E6

2

CIRCUIT DIAGRAM

S2061

4

E201

30

F 6

20 A

P

P128
Satellite Fuse
Box 2

6

RN

See Fuse Details

Interior Lamps

C2029

4

See Ground Dis-
tribution

C2055

12

UY

PY

C212

13

Z111
Radio

8

B

Not used

13

5

C230

Except NAS

Low Line Radio

C437

5

X

F 3

10 A

See Fuse Details

P126
Fascia Fuse Box

1

C229

13

C209

1

C426

1

C468

Z178
Right Antenna
Amplifier

C470

C2079

Coaxial Cable

Z181
Right Side Win-
dow Antenna

C230

7

S334

12

C277

LGO