Reset Button; Connection Diagram - Sony CDX-C90 Installation And Connections

Connections
Caution
•This unit is designed for negative ground 12 V DC operation only.
•Before making connections, disconnect the ground terminal of the car battery to avoid short circuits.
•Connect the yellow and red power input leads only after all other leads have been connected.
•Be sure to connect the red power input lead to the positive 12 V power terminal which is energized when
the ignition key is in the accessory position.
•Run all earth wires to a common earth point.
•The use of optical instruments with this product will increase eye hazard.

Reset button

When the installation and connections are over, be sure to press the reset button with a ball-point pen etc.
When making a digital connection
To connect a unit with an optical cable, connect the optical cable (optional) to the optical adapter (optional),
and plug the adapter into the special socket on the rear of the unit. Then set the Digital out to "on".
To set the Digital out to "on" or "off", refer to the "Initial settings" in the Operating Instructions.
Notes
• The Digital out is factory-set to off.
• If the Digital out is not correctly set, the unit will work without producing a sound.
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DIGITAL OUT
Optical cable RC-97,98 (not supplied)
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Optical adapter XA-D210 (not supplied)
Equipment used in illustrations (not supplied)
Front speaker
Rear speaker
Active subwoofer

Connection diagram

Example 1
BUS
CONTROL IN
BUS
AUDIO IN
Example 2
BUS
CONTROL IN
Source selector
BUS
AUDIO IN
For connecting two or more changers, the source selector XA-C30 (optional) is necessary.
Example 3
BUS
CONTROL IN
DIGITAL
OUT
REAR
LINE OUT
Power amplifier
CD/MD changer
FRONT
LINE OUT
REAR
LINE OUT
FRONT
LINE OUT
REAR
LINE OUT
Digital equalizer
preamplifier
XDP-210EQ, etc.