Sony CDX-GT500 Service Manual page 9

• CDX-GT500EE
Connection diagram
A To AMP REMOTE IN of an optional power
amplifi er
This connection is only for amplifi ers. Connecting any other
system may damage the unit.
B To the interface cable of a car telephone
Warning
If you have a power aerial without a relay box,
connecting this unit with the supplied power connecting
lead 3 may damage the aerial.
Notes on the control and power supply leads
• The power aerial control lead (blue) supplies +12 V DC when
you turn on the tuner.
• When your car has built-in FM/AM aerial in the rear/side glass,
connect the power aerial control lead (blue) or the accessory
power input lead (red) to the power terminal of the existing
aerial booster. For details, consult your dealer.
• A power aerial 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 earth 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 amplifi 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 amplifi er are not connected correctly, "Failure"
appears in the display. In this case, make sure the speaker and
amplifi er are connected correctly.
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