Sony CFD-470 - Manual (Page 34)

Troubleshooting Guide
Trouble Cause and remedy
The unit does not operate. • The AC power cord is not connected (for AC operation).
• Incorrect polarity of batteries (See page 8.)
• Weak batteries (See page 8.)
No audio • Turn the VOLUME control toward MAX.
• Check the FUNCTION selector setting.
• The headphones are plugged into PHONES jack (when listening
through the speakers).
• Speakers are not connected. (See page 9.)
The sound is cracked or distorted. • Turn down the VOLUME control.
Trouble Cause and remedy
The unit does not operate. • The disc inserted with the labeled surface facing down.
• Dusty or defective disc (See page 13.)
• Dirty or dusty lens (See page 32.)
• The disc holder lid is not closed.
• Moisture condensation
• When the CD operation buttons cannot be activated, turn off the
unit and begin again.
• Improper setting of the FUNCTION selector.
Skipping of sound • Dusty or defective disc (See page 13.)
• Dirty lens (See page 38.)
• Strong vibrations
Trouble Cause and remedy
Tape does not move. • The cassette is being inserted improperly.
• The tape is slack.
• The cassette holder lid is not closed.
The REC button cannot be activated. • No cassette in the cassette holder.
• The tab is removed from the cassette. (See page 22.)
Recording or playback cannot be made or there is a decrease
in sound level. • Dirty heads (See page 32.)
• Improper setting of the FUNCTION selector.
Unsatisfactory erasing • Dirty erase head (See page 32.)
• Weak batteries (See page 8.)
Excessive wow or flutter, or sound drop-out • Contamination of the capstan or pinch roller (See page 32.)
• Magnetic contamination of the head (See page 32.)
• Weak batteries (See page 8.)
Clock
Trouble Cause and remedy
Clock does not operate correctly. * Incorrect polarity of batteries for clock/tuner/memory. (See page 8.)
• Weak batteries. (See page 8.)
Timer does not operate correctly. • Check if the clock is correctly set. (See page 10.)
• Check if timer setting is correct. (See page 28.)
• Weak batteries. (See page 8.)
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