Sony D-NF420, NF421 Radio, Others

Symptom

Cause and/or corrective action

Even though you have not selected “BOOKMARK,” (Bookmark) ﬂashes.

If you have selected a playback option other than “BOOKMARK,” (Bookmark) ﬂashes.

Play stopped abruptly.	 The off timer has been set. Change the setting of “TIMER” to
	“OFF” (page 24).
	 The dry battery is used up completely. Replace the dry battery
	with a new LR6 (size AA) alkaline battery (page 10).

The TIMER function is canceled.

The TIMER function for the CD is canceled if you start listening to the radio.

The TIMER function for the radio is canceled if you start playing a CD.

You cannot operate the player, and a sequence of 8 numbers or letters appear on the display of the CD player.

This phenomenon may occur, depending on the CD you are using. Remove all power sources, and then insert the battery or reconnect the AC power adaptor. Try to operate the player again. If the problem persists, consult your nearest Sony dealer.

Radio

Symptom

Cause and/or corrective action

The radio is weak or has poor quality.

Replace the battery with a new LR6 (size AA) alkaline battery (page 10).

Move the CD player away from electric appliances (TVs, PCs, etc.)

Keep the AC power adaptor away from the CD player.

Others

Symptom

Cause and/or corrective action

When closing the lid of the CD player, the CD starts to rotate.

The player is reading the information on the CD, not malfunctioning.

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Contents

This warranty is valid only in the United States WARNING Table of Contents Create Your Own ATRAC CDs Install SonicStage on your computer Create an ATRAC CD Listen to them with this CD player Which discs can you play on this CD player Audio CDs: ATRAC CDs: MP3 CDs: CD-Extraand Mix-ModeCDs: Music discs encoded with copyright protection technologies Difference in ﬁle structures of ATRAC CDs and MP3 CDs The usable number of groups and ﬁles Playing order of ATRAC CDs and MP3 CDs Precautions On safety On the CD player On handling CDs On headphones/earphones Checking the Supplied Guide to Parts and Accessories Controls Started Getting Preparing a Power Source (Dry Battery) Source Checking the remaining power of the battery When using the AC power adaptor Playback Playing a CD Basic playback operations (Play, stop, search) Locking the controls Searching for Your Favorite Track/File Searching by viewing groups Searching by viewing a list of groups/ﬁles (List View) Checking CD information on the display To check information on the display Changing Playback Options (PLAY MODE) Options Playback options (PLAY MODE) Playing groups Playing your favorite tracks Playing your favorite play lists Playing tracks in your favorite order (PGM play) Playing tracks repeatedly Changing Sound Quality Selecting the sound quality Customizing sound quality SOUND items Changing Optional Settings Setting various functions OPTION items Page (: Default settings) Using the Radio Listening to the Radio Emphasizing the bass sound If it is hard to hear the FM TV/WB broadcast due to interference from strong If it is hard to hear the FM broadcast due to poor reception Protecting your hearing Turning off the radio automatically When listening to the radio on the battery Presetting Radio Stations Presetting stations manually To change a preset station To cancel a preset station To cancel all preset stations Playing Preset Radio Stations Changing the Tuning Interval (Except European models) Interval Additional Information Troubleshooting Information Additional Radio Others Maintenance Speciﬁcations Optional Accessories Index