3-865-649-11 (1) FM/AM Compact Disc Player Operating Instructions Owner’s Record The model and serial numbers are located on the bottom of the unit. Record the serial number in the space provided below. Refer to these numbers whenever you call upon your Sony dealer regarding this product. Model No. CDX-4250␣ ␣ Serial No. For installation and connections, see the supplied installation/connections manual.
Warning Welcome ! This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
Table of Contents Location of controls ................................................. 4 Getting Started Resetting the unit ................................................ 5 Detaching the front panel .................................. 5 Setting the clock .................................................. 6 Additional Information Precautions ......................................................... Maintenance ....................................................... Dismounting the unit .................
Location of controls MODE BTM SOUND SEEK/AMS SENS DSPL OFF 1 2 D - BASS SOURCE REPEAT SHUF 1 2 OFF 3 4 5 3 6 RELEASE CDX-4250 Refer to the pages for details.
Getting Started Resetting the unit Before operating the unit for the first time or after replacing the car battery, you must reset the unit. Remove the front panel and press the reset button with a pointed object, such as a ballpoint pen. Notes • Be sure not to drop the panel when detaching it from the unit. • If you detach the panel while the unit is still turned on, the power will turn off automatically to prevent the speakers from being damaged.
Setting the clock The clock has a 12-hour digital indication. CD Player Example: To set the clock to 10:08 1 2 Press (DSPL) during operation. If the POWER SELECT function is set to “ON,” go to step 2. If it is set to “OFF,” set to “ON” (page 9). Listening to a CD Insert a CD. Playback starts automatically. Label side up Press (DSPL) for two seconds. The hour indication flashes. 1 Set the hour.
Locating a specific track — Automatic Music Sensor (AMS) During playback, push the SEEK/AMS control up or down and release for each track you want to skip. To locate succeeding tracks Radio SEEK/AMS Memorizing stations automatically To locate preceding tracks — Best Tuning Memory (BTM) Locating a specific point in a track — Manual Search During playback, push the SEEK/AMS control up or down and hold for about two seconds. Release when you have found the desired point.
Memorizing only the desired stations You can store up to 6 stations on each band (a total of 18 for FM I, FM II, and FM III, and 6 for AM) in the order of your choice. 1 Press (SOURCE) repeatedly to select the tuner. 2 Press (MODE) repeatedly to select the band. 3 Push the SEEK/AMS control up or down to tune in the station that you want to store on the number button. 4 Press and hold the desired number button ((1) to (6)) until “MEM” appears. The number button indication appears in the display.
Other Functions Changing the sound and beep sound Boosting the bass sound — D-bass You can adjust the bass, treble, balance, and fader. You can store the bass and treble levels. 1 Select the item you want to adjust by pressing (SOUND) repeatedly. BAS (bass) n TRE (treble) n BAL (left-right) n FAD (front-rear) n VOL (volume) 2 Adjust the selected item by rotating the dial. Adjust within three seconds after selecting the item. (After three seconds, the dial function reverts to volume control.
Additional Information Before playing, clean the discs with an optional cleaning cloth. Wipe each disc from the center out. Do not use solvents such as benzine, thinner, commercially available cleaners, or antistatic spray intended for analog discs. Precautions • If your car was parked in direct sunlight resulting in a considerable rise in temperature inside the car, allow the unit to cool off before operating it. • If no power is being supplied to the unit, check the connections first.
Maintenance Dismounting the unit Fuse replacement When replacing the fuse, be sure to use one matching the amperage rating stated on the original fuse. If the fuse blows, check the power connection and replace the fuse. If the fuse blows again after replacement, there may be an internal malfunction. In such a case, consult your nearest Sony dealer. Fuse (10 A) Warning Never use a fuse with an amperage rating exceeding the one supplied with the unit as this could damage the unit.
Specifications AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION 17 watts per channel minimum continuous average power into 4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more than 1 % total harmonic distortion.
Troubleshooting guide The following checklist will help you remedy the problems you may encounter with your unit. Before going through the checklist below, check the connection and operating procedures. General Problem Cause/Solution No sound. •Rotate the dial in a clockwise direction to adjust the volume. •Set the fader control to the center position for two-speaker systems. The contents of the memory have been erased. • The power cord or battery has been disconnected.
Error displays The following indications will flash for about five seconds. Display Cause Solution A CD is dirty or inserted upside down. Clean or insert the CD correctly. The CD player cannot be operated because of some problem. Press the reset button or 6. If the above-mentioned solutions do not help improve the situation, consult your nearest Sony dealer.
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