Sharp CD-CH1500 operation manual Maintenance

Page 30

Troubleshooting Chart (continued)

 

Maintenance

References

– Troubleshooting Chart / Maintenance –

If trouble occurs

When this product is subjected to strong external interference (mechanical shock, ex- cessive static electricity, abnormal supply voltage due to lightning, etc.) or if it is oper- ated incorrectly, it may malfunction.

If such a problem occurs, do the following:

1.Set the unit to the stand-by mode and turn the power on again.

2.If the unit is not restored in the previous operation, unplug and plug in the unit, and then turn the power on.

Clearing all the memory (reset)

If neither operation above restores the unit, clear all the memory by following the instructions be- low.

1. Press the POWER button to enter the power stand-by mode.

2. While pressing down the VOLUME X button, press the POWER button until “ALL CLEAR” ap- pears.

Caution:

This operation will erase all data stored in memory including clock, timer settings, tuner preset and CD program.

Before transporting the unit

On the back of this unit is equipped with a transport safety screw in order to prevent damage during trans- portation.

1. Press the POWER button to turn the power on.

2. Remove all discs from the unit, close the disc tray.

“CD NO DISC” is displayed.

3. Press the POWER button to enter the stand-by mode.

“GOOD-BYE” is displayed.

4. When “GOOD-BYE” disappears, unplug the AC power cord from the AC outlet.

5. Insert the transport safety screw into the back of the unit and tighten it with a flat-blade screw- driver.

Cleaning the tape-handling parts

Dirty heads, capstans or pinch rollers can cause poor sound and tape jams. Clean these parts with a cotton swab moistened with commercial head/pinch roller cleaner or isopropyl alcohol.

When cleaning the heads, pinch rollers, etc., unplug the unit which contains high voltages.

D

C

A

B

 

C

D

 

 

 

 

 

 

 

A

Erase head

 

 

C

Capstan

 

B

Recording/Playback head

D

Pinch roller

 

After long use, the deck’s heads and capstans may become magnetized, causing poor sound. Demagnetize these parts once every 30 hours of playing/recording time by using a commercial tape head demagnetizer. Read the demagnetizer’s instructions carefully before use.

Cleaning the CD pickup lens

In order to ensure proper operation of the CD player, preventative maintenance (clean- ing of the laser pickup lens) should be performed periodically.

Lens cleaners are commercially available. Contact your local CD software dealer for options.

Cleaning the cabinet

Periodically wipe the cabinet with a soft cloth and a diluted soap solution, then with a dry cloth.

Caution:

Do not use chemicals for cleaning (gasoline,

paint thinner, etc.).

It may damage the cabinet finish.

Do not apply oil to the inside of the unit.

It may cause malfunctions.

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Contents CD-CH1500 Important Instruction Explanation of Graphical SymbolsSpecial Notes Special NotesImportant Safeguards Important SafeguardsContents AccessoriesGeneral PrecautionsVolume control Care of compact discsControls and Indicators Controls and IndicatorsFront panel Multi-function LCD display Rear panelFM/AM Antenna Jack Auxiliary Input Jacks Remote control Subwoofer Bass Reflex Duct Speaker systemWoofer Subwoofer Terminals Tweeter Main Speaker TerminalsSystem Connections System ConnectionsPreparation for Use AM loop antennaSpeaker connection Connecting the AC power cordRemove the transport screw FM/AM loop antenna connectionTest of the remote control Remote ControlBattery installation Remote ControlBasic Operation Demonstration modeGeneral Control Opening and closing the control panelEqualizer Sound ControlBass control Sound ControlBasic Setting the ClockOperation ClockListening to a CD CDs CD PlaybackListening to a CD CDs To locate the beginning of a track To locate the desired portionRepeat or Random Play Switching the time displayTo specify a disc to Play Advanced CD PlaybackProgrammed Play Programmed PlayRadio Auto tuningListening to the Radio Listening to the RadioMemorizing a station To scan the preset stationsListening to the memorized station To recall a memorized stationListening to a Cassette Tape Listening to a Cassette TapeTape Playback Fast forward/rewind on side aRecording from a CD RecordingRecording from a CD Recording from the Radio Recording from the RadioErasing recorded tapes To interrupt recordingTimer playback or Timer recording Timer and Sleep OperationAdvanced Features Timer and Sleep OperationPower stand-by mode automatically To check the setting timeWhen the timer end time is reached, the system will enter Adjust the volume using the Volume buttonsSleep operation To use timer and sleep operation togetherTo cancel the sleep operation To confirm the remaining sleep timeFeatures Enhancing Your Stereo SystemAdvanced Troubleshooting Chart ReferencesMaintenance Amplifier SpecificationsSpecifications SpeakerSharp Electronics Corporation