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Sony MEX-BT3900U Manual

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35
*1 The actual range will vary depending on factors 
such as obstacles between devices, magnetic 
fields around a microwave oven, static electricity, 
reception sensitivity, antenna’s performance, 
operating system, software application, etc.
*2 Bluetooth standard profiles indicate the purpose of 
Bluetooth communication between devices.
Power amplifier section
Output: Speaker outputs
Speaker impedance: 4 – 8 ohms
Maximum power output: 52 W 
× 4 (at 4 ohms)
General
Outputs: 
Audio outputs terminal (front/rear)
Subwoofer output terminal (mono)
Power antenna (aerial) relay control terminal
Power amplifier control terminal
Inputs: 
BUS control input terminal
BUS audio input terminal
Telephone ATT control terminal
Remote controller input terminal
Antenna (aerial) input terminal
MIC input terminal
AUX input jack (stereo mini jack)
USB signal input connector
Power requirements: 12 V DC car battery 
(negative ground (earth))
Dimensions: Approx. 178 
× 50 × 179 mm 
(7
1
/
8
 
× 2 × 7
1
/
8
 in) (w/h/d)
Mounting dimensions: Approx. 182 
× 53 × 162 mm 
(7
1
/
4
 
× 2
1
/
8
 
× 6
1
/
2
 in) (w/h/d)
Mass: Approx. 1.2 kg (2 lb 11 oz)
Supplied accessories: 
Card remote commander: RM-X172 
Parts for installation and connections (1 set)
Optional accessories/equipment: 
BUS cable (supplied with an RCA pin cord): 
RC-61 (1 m), RC-62 (2 m)
USB connection cable for iPod: RC-100IP
HD Radio™ tuner: XT-100HD
External microphone: XA-MC10
Your dealer may not handle some of the above listed 
accessories. Please ask the dealer for detailed 
information.
Design and specifications are subject to change 
without notice.
Troubleshooting
The following checklist will help you remedy 
problems you may encounter with your unit.
Before going through the checklist below, check the 
connection and operating procedures.
If the problem is not solved, visit the following 
support site.
General
No power is being supplied to the unit.
• Check the connection or fuse.
• If the unit is turned off and the display disappears, it 
cannot be operated with the remote commander.
t Turn on the unit.
The power antenna (aerial) does not extend.
The power antenna (aerial) does not have a relay box.
No sound.
• The ATT function is activated, or the Telephone ATT 
function (when the interface cable of a car telephone 
is connected to the ATT lead) is activated.
• The position of the fader control “FADER” is not set 
for a 2-speaker system.
• The Bluetooth audio device is in pause.
t Cancel pause.
No beep sound.
• The beep sound is canceled (page 29).
• An optional power amplifier is connected and you are 
not using the built-in amplifier.
The contents of the memory have been erased.
• The RESET button has been pressed.
t Store again into the memory.
• The power supply lead or battery has been 
disconnected or it is not connected properly.
Stored stations and correct time are erased.
The fuse has blown.
Makes noise when the position of the ignition 
is switched.
The leads are not matched correctly with the car’s 
accessory power connector.
During playback or reception, demonstration 
mode starts.
If no operation is performed for 5 minutes with 
“DEMO-ON” set, demonstration mode starts.
t Set “DEMO-OFF” (page 29).
continue to next page 
t
Support site
http://esupport.sony.com
http://www.sony.com/mobileAV