Read Sony MEX-V50DT Service Manual online
MEX-V50DT
3
SECTION 2
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
Cautions
Run all ground (earth) leads to a common ground
(earth) point.
This unit is designed for negative ground (earth) 12 V
DC operation only.
Do not disassemble or modify the unit.
Do not install in locations which interfere with airbag
operation.
Do not get the leads under a screw, or caught in moving
parts (e.g. seat railing).
Before making connections, turn the car ignition off to
avoid short circuits.
Connect the yellow and red power supply leads only
after all other leads have been connected.
Be sure to insulate any loose unconnected leads with
electrical tape for safety.
Do not press on the LCD when installing the unit.
Install the unit with the monitor facing straight forward;
do not install it at a slanted angle.
(earth) point.
This unit is designed for negative ground (earth) 12 V
DC operation only.
Do not disassemble or modify the unit.
Do not install in locations which interfere with airbag
operation.
Do not get the leads under a screw, or caught in moving
parts (e.g. seat railing).
Before making connections, turn the car ignition off to
avoid short circuits.
Connect the yellow and red power supply leads only
after all other leads have been connected.
Be sure to insulate any loose unconnected leads with
electrical tape for safety.
Do not press on the LCD when installing the unit.
Install the unit with the monitor facing straight forward;
do not install it at a slanted angle.
Notes on the power supply lead (yellow)
When connecting this unit in combination with other
stereo components, the amperage rating of the car
circuit to which the unit is connected must be higher
than the sum of each component's fuse amperage rating.
If no car circuits are rated high enough, connect the unit
directly to the battery.
stereo components, the amperage rating of the car
circuit to which the unit is connected must be higher
than the sum of each component's fuse amperage rating.
If no car circuits are rated high enough, connect the unit
directly to the battery.
Connection example
Notes (
-A)
Be sure to connect the ground (earth) lead before connecting the amplifier.
The alarm will only sound if the built-in amplifier is used.
The alarm will only sound if the built-in amplifier is used.
Note (
-B)
You cannot use multiple auxiliary devices simultaneously, even if they are
connected to different terminals.
connected to different terminals.
Connection diagram
To AMP REMOTE IN of an optional power
amplifier
amplifier
This connection is only for amplifiers. Connecting any other system
may damage the unit.
may damage the unit.
To the car's reverse lamp cord for an optional rear
view camera
To the parking brake switch cord
To an auxiliary device such as a portable media
player, game console, etc. (not supplied)
view camera
To the parking brake switch cord
To an auxiliary device such as a portable media
player, game console, etc. (not supplied)
Tip
You can use an RCA cord (not supplied) to connect auxiliary devices.
You can use an RCA cord (not supplied) to connect auxiliary devices.
Warning
If you have a power antenna (aerial) without a relay box,
connecting this unit with the supplied power supply
connection cable
connecting this unit with the supplied power supply
connection cable
may damage the antenna (aerial).
Notes on the control and power supply leads
The power antenna (aerial) control lead (blue) supplies +12 V DC when
you turn on the tuner.
If your car has a built-in FM/AM antenna (aerial) in the rear/side glass,
connect the power antenna (aerial) control lead (blue) or the accessory
power supply lead (red) to the power terminal of the antenna (aerial)
booster. For details, consult your car dealer.
A power antenna (aerial) without a relay box cannot be used with this unit.
you turn on the tuner.
If your car has a built-in FM/AM antenna (aerial) in the rear/side glass,
connect the power antenna (aerial) control lead (blue) or the accessory
power supply lead (red) to the power terminal of the antenna (aerial)
booster. For details, consult your car dealer.
A power antenna (aerial) without a relay box cannot be used with this unit.
Memory hold connection
When the yellow power supply lead is connected, power will always be
supplied to the memory circuit even when the ignition switch is turned off.
When the yellow power supply lead is connected, power will always be
supplied to the memory circuit even when the ignition switch is turned off.
Notes on speaker connection
Before connecting the speakers, turn the unit off.
Use speakers with an impedance of 4 to 8 ohms, and with adequate
power handling capacities to avoid damage.
Do not connect the speaker terminals to the car chassis, or connect the
terminals of the right speakers with those of the left speakers.
Do not connect the ground (earth) lead of this unit to the negative (–)
terminal of a speaker.
Do not attempt to connect the speakers in parallel.
Connect only passive speakers. Connecting active speakers (with
built-in amplifiers) to the speaker terminals may damage the unit.
To avoid a malfunction, do not use the built-in speaker leads installed in
your car if they feature a common negative (–) lead for the right and left
speakers.
Do not connect the unit’s speaker leads to each other.
Use speakers with an impedance of 4 to 8 ohms, and with adequate
power handling capacities to avoid damage.
Do not connect the speaker terminals to the car chassis, or connect the
terminals of the right speakers with those of the left speakers.
Do not connect the ground (earth) lead of this unit to the negative (–)
terminal of a speaker.
Do not attempt to connect the speakers in parallel.
Connect only passive speakers. Connecting active speakers (with
built-in amplifiers) to the speaker terminals may damage the unit.
To avoid a malfunction, do not use the built-in speaker leads installed in
your car if they feature a common negative (–) lead for the right and left
speakers.
Do not connect the unit’s speaker leads to each other.
REAR/SUB
AUDIO OUT
FRONT
AUDIO OUT
REAR
VIDEO OUT
A
B
CAMERA IN
AUX
AUDIO IN
AUX
VIDEO IN
*not supplied
Video camera*
REAR VIDEO OUT
AUX VIDEO IN
AUX AUDIO IN
CAMERA IN
REAR/SUB
AUDIO OUT
FRONT
AUDIO OUT
*
1
For details on connecting to the parking brake switch cord, see
“Connecting the parking brake lead
( )” on the reverse side.
*
2
RCA pin cord (not supplied)
*
3
Remove the cap from the antenna jack before connecting. For
details on installing the One-Seg TV antenna (aerial), see “Installing
the One-Seg TV antenna (aerial)
details on installing the One-Seg TV antenna (aerial), see “Installing
the One-Seg TV antenna (aerial)
( )” on the reverse side.
Blue/white striped
AMP REM
Max. supply current: 0.3 A
PARKING BRAKE
REVERSE IN
From car antenna (aerial)
Fuse (10 A)
For details, see “Power connection diagram” on the reverse side.
Light green
Purple/white striped
Positions 1, 2, and 3 do not have pins.
4
Yellow
Continuous power supply
5
Blue
Power antenna (aerial) control
6
Orange
Switched illumination power supply
7
Red
Switched power supply
8
Black
Ground (earth)
Negative polarity positions 2, 4, 6, and 8 have striped leads.
1
Purple
+
Speaker, rear, right
2
–
Speaker, rear, right
3
Gray
+
Speaker, front, right
4
–
Speaker, front, right
5
White
+
Speaker, front, left
6
–
Speaker, front, left
7
Green
+
Speaker, rear, left
8
–
Speaker, rear, left
*
2
*
2
*
2
*
2
*
1
*
2
From the car’s speaker connector
From the car’s power connector
*
3
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