SERVICE MANUAL
PORTABLE CD PLAYER
US Model
Canadian Model
UK Model
Australian Model
D-NF420
AEP Model
E Model
D-NF420/NF421
SPECIFICATIONS
D-NF420/NF421
Photo: D-NF420
Ver. 1.3 2005.03
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM-3325ERV2
Optical Pick-up Name DAX-25EV
9-879-393-04
2005C05-1
© 2005.03
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation
– Continued on next page –
US and foreign patents licensed from Dolby Laboratories.
• SonicStage and SonicStage logo are trademarks or registered trademarks of Sony
Corporation.
• OpenMG, Net MD, ATRAC, ATRAC3plus and their logos are trademarks of Sony
Corporation.
• “WALKMAN” is a registered trademark of Sony Corporation to represent Headphone
Stereo products. is a trademark of Sony Corporation.
• Microsoft, Windows, Windows NT and Windows Media are trademarks or registered
trademarks of Microsoft Corporation in the United States and /or other countries.
• IBM and PC/AT are registered trademarks of International Business Machines
Corporation.
• Macintosh is a trademark of Apple Computer, Inc. in the United States and/or other
countries.
• Pentium is a trademark or a registered trademark of Intel Corporation.
• All other trademarks and registered trademarks are trademarks or registered trademarks
of their respective holders. ™ and ® marks are omitted in this manual.
• CD and music-related data from Gracenote, Inc., copyright © 2000-2003 Gracenote.
Gracenote CDDB
®
Client software, copyright 2000-2003 Gracenote. This product and
service may practice one or more of the following U.S. Patents: #5,987,525; #6,061,680;
#6,154,773, #6,161,132, #6,230,192, #6,230,207, #6,240,459, #6,330,593, and other
patents issued or pending.
Gracenote and CDDB are registered trademarks of Gracenote. The Gracenote logo and
logotype, the Gracenote CDDB logo, and the “Powered by Gracenote” logo are
trademarks of Gracenote.
Program © 2001, 2002, 2003, 2004 Sony Corporation
Documentation © 2004 Sony Corporation
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-ATERIAL'A!L!S
7AVELENGTHLNM
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OPTICALPICKUPBLOCKWITHMMAPERTURE
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Output (at 3 V input level)
Headphones (stereo minijack)
Approx. 5 mW + Approx. 5 mW at 16 Ω
(Approx. 1.5 mW + Approx. 1.5 mW at 16 Ω)*
*For the customers in AEP, UK, EE, RU models
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