Specifications; Troubleshooting - Sony CDX-GT25 Operating Instructions Manual

Specifications

Tuner section
FM
Tuning range: 87.5 – 108.0 MHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 150 kHz
Usable sensitivity: 10 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 70 dB (mono)
Separation: 40 dB at 1 kHz
Frequency response: 20 – 15,000 Hz
MW/LW
Tuning range:
MW: 531 – 1,602 kHz
LW: 153 – 279 kHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: MW: 26 µV, LW: 45 µV
CD Player section
Signal-to-noise ratio: 120 dB
Frequency response: 10 – 20,000 Hz
Wow and flutter: Below measurable limit
Power amplifier section
Output: Speaker outputs (sure seal connectors)
Speaker impedance: 4 – 8 ohms
Maximum power output: 45 W × 4 (at 4 ohms)
General
Outputs:
Audio outputs terminal (sub/rear switchable)
Power antenna (aerial) relay control terminal
Power amplifier control terminal
Inputs:
Remote controller input terminal
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
Tone controls:
Low: ±10 dB at 60 Hz (XPLOD)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)
Power requirements: 12 V DC car battery
(negative ground (earth))
Dimensions: Approx. 178 × 50 × 179 mm
1 × 2 × 7 1
(7 / / in) (w/h/d)
8 8
Mounting dimensions: Approx. 182 × 53 × 162 mm
1 × 2 1 × 6 1
(7 / / / in) (w/h/d)
4 8 2
Mass: Approx. 1.2 kg (2 lb 11 oz)
Supplied accessory:
Parts for installation and connections (1 set)
Design and specifications are subject to change
without notice.
• Halogenated flame retardants are not used in the
certain printed wiring boards.
• Halogenated flame retardants are not used in
cabinets.
• Packaging cushions are made from paper.

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.
General
No power is being supplied to the unit.
Check the connection or fuse.
The power antenna (aerial) does not extend.
The power antenna (aerial) does not have a relay box.
No sound.
The position of the fader control "FAD" is not set for a
2-speaker system.
No beep sound.
• The beep sound is canceled (page 11).
• An optional power amplifier is connected and you are
not using the built-in amplifier.
The contents of the memory have been erased.
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 11).
The display disappears from/does not appear
in the display window.
• The dimmer is set "DIM-ON" (page 11).
• The display disappears if you press and hold (OFF).
t Press and hold (OFF) on the unit until the
display appears.
• The connectors are dirty (page 14).
The Auto Off function does not operate.
The unit is turned on. The Auto Off function activates
after turning off the unit.
t Turn off the unit.
continue to next page t
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