Discovery electrical Manual — part 38
RADIO (EXCEPT NAS) (HIGH LINE)
E6
11
CIRCUIT DIAGRAM
X235
Radio Volume Up
Switch
0
X234
Radio Wave-
band Switch
0
[1]
[1]
Except NAS
High Line Radio
C2057
B
S217
E201
E201
0
[1]
Z111
Radio
Z234
Radio Volume
Resistor
Z236
Radio Waveband
Resistor
X236
Radio Volume
Down Switch
X233
Radio Tune
Switch
3
2
5
1
4
1
2
4
5
2
1
5
4
Interior Lamps
C230
C2058
C2058
C2057
C2056
C2056
0
[1]
C2097
1
2
4
5
C2059
Interior Lamps
See Ground Dis-
tribution
Interior Lamps
See Ground Dis-
tribution
See Ground Dis-
tribution
U
RN
NY
B
B
RG
B
B
B
RN
UG
NY
B
B
U
RN
S277
S277
RN
E201
UG
Z235
Radio Tune Re-
sistor
RADIO (EXCEPT NAS) (HIGH LINE)
E6
12
CIRCUIT DIAGRAM
F 3
10 A
5
C437
P126
Fascia Fuse Box
See Fuse Details
1
C229
4
5
Z111
Radio
6
S272
3
C2061
3
2
6
E401
See Ground Dis-
tribution
C413
+
–
+
–
C412
6
PY
B
E6-9
E201
1
11
9
10
C2055
1
3
2
C212
1
3
2
C437
C412
See Ground Dis-
tribution
R
B
SCR
Z199
Subwoofer Am-
plifier Shield
K146
Subwoofer
Except NAS
S418
High Line Radio
B
X
Z176
Subwoofer Am-
plifier
LGO
B
BW
B
BW
S334
RADIO (NAS)
E7
CIRCUIT OPERATION
1
CIRCUIT OPERATION
The audio system consists of a new head unit
connected to a Radio Tune Switch, a waveband
switch, a volume up and a volume down switch
which are located on the fascia next to the
Instrument Cluster. The system is also equipped with
an amplifier, a subwoofer, a subwoofer amplifier and
a CD changer which is connected to the Radio with a
DIN cable. The amplifier is connected to power via a
Power Amplifier Relay which is energised with
ignition on.
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. The system is
equipped with two rear and four front speakers.
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 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 (NAS)
E7
2
CIRCUIT DIAGRAM
S2061
4
C230
E201
30
F 6
20 A
P
P128
Satellite Fuse
Box 2
6
RN
7
X
F 3
10 A
P126
Fascia Fuse Box
C229
1
See Fuse Details
Interior Lamps
C209
13
LGO
8
C2055
10
C2029
6
See Ground Dis-
tribution
5
C2055
12
UY
C230
PY
C212
13
Z111
Radio
S272
A
E7-7
E7-9
B
5
C268
B
S2065
SCR
B
LGO
NAS
See Fuse Details
See Ground Dis-
tribution
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст