SONY MEX-BT5000
Service Manual

MEX-BT5000

(US, Canadian, E)
Cautions
6 To the +12 V power terminal which is energized in the accessory position of the ignition key switch
Notes � If there is no accessory position, connect to the +12 V power (battery) terminal which is energized at all times. Be sure to connect the black ground lead to a metal surface of the car �rst. � When your car has a built-in FM/AM antenna in the rear/ side glass, see �Notes on the control and power supply leads.�

A
AUDIO OUT FRONT

Be sure to install this unit in the dashboard of the car as the rear side of the unit becomes hot during use. � This unit is designed for negative ground 12 V DC operation only. � 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 input leads only after all other leads have been connected. � Run all ground leads to a common ground point. � Be sure to insulate any loose unconnected leads with electrical tape for safety. � Do not cover the ventilation slots or heat sinks of the unit. � The use of optical instruments with this product will increase eye hazard. Notes on the power supply lead (yellow) � When connecting this unit in combination with other stereo components, the connected car circuit�s rating must be higher than the sum of each component�s fuse. � When no car circuits are rated high enough, connect the unit directly to the battery.

7 To the +12 V power terminal which is energized at all times

SUB OUT (MONO)

AUDIO OUT REAR

Be sure to connect the black ground lead to a metal surface of the car �rst. Notes on the control and power supply leads � The power antenna control lead (blue) supplies +12 V DC when you turn on the tuner. � When your car has built-in FM/AM antenna in the rear/side glass, connect the power antenna control lead (blue) or the accessory power input lead (red) to the power terminal of the existing antenna booster. For details, consult your dealer. � A power antenna without a relay box cannot be used with this unit. Memory hold connection When the yellow power input 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 its damage. � Do not connect the speaker terminals to the car chassis, or connect the terminals of the right speakers with those of the left speaker. � Do not connect the ground lead of this unit to the negative (�) terminal of the speaker. � Do not attempt to connect the speakers in parallel. � Connect only passive speakers. Connecting active speakers (with built-in ampli�ers) 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 the unit shares a common negative (�) lead for the right and left speakers. � Do not connect the unit�s speaker leads to each other. Note on connection If speaker and ampli�er are not connected correctly, �Failure� appears in the display. In this case, make sure the speaker and ampli�er are connected correctly.

B

BUS AUDIO IN

Connection example
Notes (2-A) Be sure to connect the ground lead before connecting the ampli�er. The alarm will only sound if the built-in ampli�er is used.

BUS CONTROL IN

Tip (2-B- ) For connecting two or more CD/MD changers, the source selector XA-C40 (not supplied) is necessary.

Connection diagram
1 To a metal surface of the car
First connect the black ground lead, then connect the orange/white striped, yellow, and red power input leads.

BUS AUDIO IN

2 To the power antenna control lead or power supply lead of antenna booster amplifler
Notes � It is not necessary to connect this lead if there is no power antenna or antenna booster, or with a manually-operated telescopic antenna. � When your car has a built-in FM/AM antenna in the rear/ side glass, see �Notes on the control and power supply leads.�

Source selector* XA-C40

BUS CONTROL IN

3 To AMP REMOTE IN of an optional power amplifler
This connection is only for ampli�ers. Connecting any other system may damage the unit.

* not supplied

4 To the interface cable of a car telephone 5 To a car�s illumination signal
Be sure to connect the black ground lead to a metal surface of the car �rst.

*1 *4 *3
Source selector (not supplied) XA-C40 Supplied with the CD/MD changer

*5
BUS AUDIO IN /AUX IN*2

AUDIO OUT FRONT
L

REMOTE IN

*6

*1
SUB OUT (MONO)
from car antenna
BUS AUDIO AUDIO AUDIO OUT OUT IN REAR FRONT

R

AUDIO OUT REAR
Fuse (10 A) AMP REM Blue/white striped

BUS CONTROL IN

2

3
Max. supply current 0.3 A Black White Left White/black striped Gray Light blue Right Gray/black striped Orange/white striped Green Left Red Green/black striped Purple Yellow Right Purple/black striped ILLUMINATION *1 RCA pin cord (not supplied) *2 Be sure to match the color-coded ATT Blue ANT REM

1 2
Max. supply current 0.1 A

4 5

6

*3

*4

7

*5 *6

cord for audio to the appropriate jacks from the unit. If you connect an optional CD/MD changer, you cannot use AUX IN terminal. Auxiliary optional equipment such as portable DVD player (not supplied) Supplied with the auxiliary equipment Supplied with XA-C40 Insert with the cord upwards.

12