radio MITSUBISHI MONTERO 1987 1.G Workshop Manual

INTRODUCTION - Precautions Before Service 13
IKITE ON INSTALLATION OF RADIO EQUIPMW&
The computers of the electronic control system has been
designed so that external radio waves will not interfere with
their operation.
However, if antenna or cable of amateur transceiver etc. is
routed near the computers, it may affect the operation of the
computers, even if the output of the transceiver is no more
than 25W.
To protect each of the computers from interference by
transmitter (hum, transceiver, etc.), the following should be
observed.
1. Install the antenna on the roof.
2. Because radio waves are emitted from the coaxial cable of
the antenna, keep it 200 mm (8 in.) away from the
computers and the wiring harness. If the cable must cross
the wiring harness, route it so that it runs at right angles to
the wiring harness.
3. The antenna and the cable should be well matched, and
the standing-wave ratio* should be kept low.
4. A transmitter having a large output should not be installed
in the vehicle.
5. After installation of transmitter, run the engine at idle, emit
radio waves from the transmitter and make sure that the
engine is not affected.
High-frequency power supply If an antenna and a cable having different impedances are
connected, the input impedance Zi will vary in accordance
with the length of the cable and the frequency of the
transmitter, and the voltage distribution will also vary in
accordance with the location.
The ratio between this maximum voltage and minimum
voltage is called the standing-wave ratio. It can also be
represented by the ratio between the impedances of the
antenna and the cable.
The amount of radio waves emitted from the cable increases
as the standing-wave ratio increases, and this increases the
possibility of the electronic components being adversely
affected.
_. r.
; ST6 Revision

8-24 WIRING HARNESS - How to Read Wiring Diagrams
(7) Indication of shielded cables
A shielded cable used , for example, in an electronic control circuit for prevention of malfunctions that may
otherwise be caused by radio interference is indicated by a solid line sandwiched between dashed lines ( E).
(8) Indication of specification-dependent connectors
With regard to harness connectors, the inter-device and -harness connectors which vary in shape or position on
different vehicle specifications, such as those with rear wipers and turbocharger and those without turbo-
charger, are given a specification-dependent connector identification symbol (lower case alphabet) following the
connector symbol.
Example: A - Ola
Specification - dependent connector identification symbol
a : Vehicles with a manual transmission
b : Vehicles with an automatic transmission
c : Vehicles with a power window
d : Vehicles without a power window
(9) Shapes of connectors
The connector shapes are indicated by simplified symbolic marks. For distinction between male and female
connectors, refer to HOW TO IDENTIFY CONNECTORS.
Refer to Item (8)
The b at the end of the connector symbol
is a specification-dependent connector
identification
symbol and indicates that
the connector is used for vehicles with’
automatic transmission.
Headlight relay Ignition
switch I Dome light
B-68a B-68b STB Revision

WIRING HARNESS - Instrument Panel 8-33
cy50 C149 Cl48 c-47
El$,}Cigarette lightet
C-43 Cigarette lighter illumination light
E::$ Radio
C-46 Shift position illumination light
C-47 Inhibitor switch
C-48 OD-OFF switch
C-49 Parking brake switch
C-50 Seat belt switch
C-51 Hazard switch
E3 Column switch
C-54 Key reminder switch
C-55 Ignition switch
C-56 Stop light switch C-57 Dimmer control switch
C-58 Front wiring harness and door
wiring harness (L.H.) combination
C-59 Turn-signal flasher unit
C-60 Power window relay
C-61 Intermittent wiper relay
C-62 Hazard flasher unit
C-63 OD-OFF relay
C-64 Headlight washer motor relay
C-65 Front speaker (L.H.)
Ision

S-60 WIRING HARNESS - Radio / Cassette Deck Circuit
17 RADIO/CASSETTE DECK CIRCUIT
lm 1 Battery _ A-02
Sub fusible link
1.25-B A-23 0.5-G 2-w 5-*5-w m
rlin fusible
To light control
relay
[Refer to P.8-461
To combination BY
meter 4
[Refer to P.8-521
DIN Cable
Tape player
L1
EQ3 1
Ignition switch
To air conditioner
[Refer to P.8-561
c
JC
3:
A-
C-1
-
Radio
1 STB Revision
-7

WIRING HARNESS - Radio / Cassette Deck Circuit 8-61
(R.H.)
Front speaker
1
(L.H.)
Rear speaker
37W618
Remarks
(1) For information concerning the ground points (exam-
ple: 0 ), refer to P.8-7.
(2) The symbols 0, 0, etc. indicate that the wiring is
connected (using the same numerical symbol) to the
facing page.
(In other words, 0 on the right page is connected to 0 on
the left page.)
Wiring color code
B: Black Br: Brown G: Green Gr: Gray L: Blue Lg: Light green
LI: Light blue 0: Orange P: Pink I?: Red Y: Yellow W: White
- 1 STB Revision

8-62 WIRING HARNESS - Cigarette Lighter / Clock Circuit
18 CIGARETTE LIGHTER / CLOCK CIRCUIT
Sub fusible link Ignition switch
r-l E-f? ‘) n
-u yn;in fusible
7-R \*I
To light control relay
[Refer to P.8-461
To radio
GW [Refer to P&601-, 3F- Pm
To hazard flasher unit4 I .LJ- G
[Refer to P.8-491
II I Multi-purpose fuse
illumination light
To heater control
illumination light
[Refer to P.8-511
Clock
CT
0: 1
h J
6
Jc-36
To combination mete& BY
[Refer to P.8-521 1
Wiring color code
B: Black LI: Light blue To dimmer control switch BY
Br: Brown 0: Orange [Refer to P.8-511 M
G: Green P: Pink
-
Gr: Gray H: Red
L: Blue Y: Yellow
Lg: Light green W: White Remark
For information concerning the ground points (example: 0 1,
refer to P.8-‘7.

WIRING HARNESS - Centralized Junction
Multi-purpose Fuse
Power supply circuit Fuse No. Rated
capacity A Applicable circuits
Battery 1 20
Clock, Dome light, Hazard warning flashers
Headlight relay 2 10 Tail lights, License plate lights, Illumination lights, Headlight
washer relay, Position lights
__-
Ignition switch (IG) 3 10 Heater relay, Seat belt warning timer, Turn-signal lights,
Alternator, Seat belt switches, Power window relay, Fuel and
water temperature gauges, Oil pressure gauge, Voltage meter,
Indicator and warning lights, Inhibitor switch, Automatic
free-wheeling hub indicator control unit
4
IO Back-up lights, Auto choke relay, OD-OFF relay
__-
5 15 Rear window defogger
Battery 6 20 Heater, Back door lock
7 15 Key-reminder switch, Stop lights, Buzzer
Ignition switch (ACC) 8 15 Windshield wipers and washer, Headlight washer relay,
Intermittent wiper relay, Horn
9 10 Rear window wiper and washer
10 15 Cigarette lighter, Radio, Tape player, Clock (ACC), Spare terminal,
Air conditioner relay

ACCESSORY - Circuit Diagram 8-189
CIRCUIT DIAGRAM
LW
CIGARETTE LIGHTER / CLOCK CIRCUIT EB w
Sub fusible link
,-fs q M 15-W 5-W 25-W m ;I;
I I
-
Main fusible -
link Ignition switch
3e
I I
NN
,
Z-RW To
linht cnntrnl r&v I 4 0 n
I 1 - .J . __._ - -., [Refer to P.8-461
I 4 L-K A
To radio
GW [Refer to P.8-601 + 1 .25- GB
To hazard flasher unit4
[Refer to P.8-491
Multi-purpose fuse
illumination light
’ To heater control
illumination light
[Refer to P 8-511
r
i I
To combination meter BY
Wiring color code
B: Black LI: Light blue
Br: Brown 0: Orange
G: Green P: Pink
Gr: Gray R: Red
L: Blue Y: Yellow
Lg: Light green W: White
I
I - - m
I
N
Q
-
[Refer to P.8-521 -
To dimmer control switch BY
[Refer to P 8-511 .I
Remark 37W615
For information concerning the ground points (example: 0 ).
refer to P.8-7.
1 STB Revision

8-192 AUDIO SYSTEM - Specifications
AUDIO SYSTEM I
/
SPECIFICATIONS
GENERAL SPECIFICATIONS NOENB-
Items
Radio
Model
Receiving band
Tape player
Model
Speaker
Instrument panel
Model
Rated input power
Center pillar trim
Model.
Reted input power
Antenna
Type Spe,cifications
AR-7 127PY AR-7 177PY
AM/ FM AMI FM
-
CX-25Y
-_-
-
SR-28A4-Y K-2
5W (Max. 7W)
SG-13SL4-G2 (GRAY) or SG-13SL4-G2 (GRAY) or
SG-13SL4-BE87 (BEIGE) SG-13SL4-BE87 (BEIGE)
15W (Max. 30W) 15W (Max. 3OW)
Pole antenna Pole antenna
TROUBLESHOOTING
Symptom
NOTE
Number in circle indicates inspection sequence
( STB Revision

8-194 AUDIO SYSTEM - Circuit Diagram
CIRCUIT DIAGRAM
I
RADIO/CASSETTE DECK CIRC,UIT
LW
033 w
Ignition switch
Battery A-02 IL-
Sub fusible link
0 1.25-B A-23 0.5-G 2 w
1 5-w 5-w ll5-w m -
u
Main fusible
link
N To light control
relav Z-RW 3 4
[Refer to P.8-461
Z-RW,,:
To air conditioner,LW
[Refer to P.8-561
To combination
By meter 4
[Refer to P.8-521
DIN Cable
I
/
J
I Y
=z
I
c- 45 -
It, /II
1 L
Radio Tape player
[ STB Revision