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Troubleshooting guide

The following checklist will assist in the correction of most problems which you may encounter with
your unit.
Before going through the checklist below, refer to the connection and operating procedures.

General

Cause/Solution

Adjust the volume with the 

 button.

Set the fader control to the center position for 2-speaker
systems.

Remove the front panel and clean the connectors. See “Cleaning
the Connectors” of “Maintenance” for details.

Problem

No sound

Indications do not appear in the
display window.

Tape playback

Problem

The sound is distorted.

Cause/Solution

Contamination of the tape head. 

n

 Clean the head.

Radio reception

Problem

Preset tuning is not possible.

Automatic tuning is not possible.

Cause/Solution

 Memorize the correct frequency.

 The broadcast is too weak.

The broadcast is too weak. 

n

 Use the manual tuning.

Additional Information

Содержание XR-1790

Страница 1: ...ion and connections see the supplied installation connections manual 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 XR 1790 Serial No ...

Страница 2: ...rmful 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 However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or televis...

Страница 3: ...r stations automatically Automatic tuning 7 Tuning in by adjusting the frequency Manual tuning 7 Memorizing stations automatically Automatic memory function 7 Memorizing only the desired stations 8 Receiving the memorized stations 8 Other Functions Adjusting the sound characteristics 8 Enjoying bass and treble at low volume Loudness Function 8 Attenuating the beep tone 8 Additional Information Pre...

Страница 4: ...FF button Refer to the pages for further details 1 Display window 2 SEL control mode select button 5 8 3 DSPL display mode change time set button 5 4 6 eject button 6 5 During radio reception Preset number buttons 8 During tape playback ATA 1 ATA Automatic Tuner Activation button 6 6 0 fast winding DIR tape transport direction change buttons 6 DSPL ATA SEEK MANU LCL A MEM DIR 2 1 3 6 4 5 XR 1790 S...

Страница 5: ...back Getting Started Setting the clock The clock has a 12 hour digital indication For example setting it to 10 08 1 Display the time Press the DSPL button during unit operation 2 Press the DSPL button for more than two seconds Set the hour digits 3 Press the SEL button momentarily Set the minute digits to go back to go forward to go back to go forward The hour digit blinks The minute digits blink ...

Страница 6: ...or rewinding with the 0 or button the tuner will turn on automatically Fast winding the tape Cassette Player Listening to a tape After inserting the cassette playback will start automatically To change the tape direction press both the 0 and the buttons at the same time Indication of tape transport direction The side facing up is being played The side facing down is being played At the end of the ...

Страница 7: ...n 1 through 6 For lower frequencies Cassette Player Radio FM1 n FM2 n AM n FM1 FM1 n FM2 n AM n FM1 For higher frequencies Radio Searching for stations automatically Automatic tuning 1 Select the desired band 2 Press either side of the SEEK MANU button momentarily to search for the next station automatic tuning The scanning stops when a station is received Press either side of the button repeatedl...

Страница 8: ...ation which you wish to store on the preset number button 3 Press and hold the desired preset number button ATA 1 to 6 for about two seconds until you hear a beep tone The number of the pressed preset number button appears in the display window Up to 6 stations on each band FM1 FM2 and AM can be stored on the preset number buttons in the order of your choice Therefore 12 stations can be memorized ...

Страница 9: ...sette care Do not touch the tape surface of a cassette as any dirt or dust will contaminate the heads Keep cassettes away from equipment with built in magnets such as speakers and amplifiers as erasure or distortion on the recorded tape could occur Do not expose cassettes to direct sunlight extremely cold temperatures or moisture When the tape is played back for a long period the cassette may beco...

Страница 10: ...case consult your nearest Sony dealer Warning Never use a fuse with an amperage rating exceeding the one supplied with the unit as this could damage the unit Cassettes longer than 90 minutes The use of cassettes longer than 90 minutes is not recommended except for long continuous play The tapes used for these cassettes are very thin and tend to be stretched easily Frequent playing and stopping of ...

Страница 11: ...dden mounting spring Repeat on the opposite side and remove the frame 2 Insert a flathead screwdriver between the bracket and mounting spring Gently pry the spring toward the unit while pulling the unit out a little Repeat on the opposite side and remove the unit Additional Information 90 10 mm 13 32 in 4 mm 3 16 in ...

Страница 12: ...uts sure seal connectors Speaker impedance 4 8 ohms Maximum power output 35 W 4 at 4 ohms General Output lead Power antenna relay control lead Tone controls Bass 8 dB at 100 Hz Treble 8 dB at 10 kHz Power requirements 12 V DC car battery negative ground Dimensions Approx 186 57 176 mm 7 3 8 2 1 4 7 in w h d not incl projecting parts and controls Mounting dimension Approx 182 53 163 mm 7 1 4 2 1 8 ...

Страница 13: ... for 2 speaker systems Remove the front panel and clean the connectors See Cleaning the Connectors of Maintenance for details Problem No sound Indications do not appear in the display window Tape playback Problem The sound is distorted Cause Solution Contamination of the tape head n Clean the head Radio reception Problem Preset tuning is not possible Automatic tuning is not possible Cause Solution...

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Страница 16: ...Sony Corporation Printed in Malaysia ...

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