NWD-E023F, NWD-E025F - Sony Audio Service Manual (repair manual). Page 3

UNLEADED  SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution:  Some printed circuit boards may not come printed with 

the lead free mark due to their particular size)

Unleaded solder has the following characteristics.
•  Unleaded solder melts at a temperature about 40 °C higher 

than ordinary solder.

 

Ordinary soldering irons can be used but the iron tip has to be 
applied to the solder joint for a slightly longer time.

 

Soldering irons using a temperature regulator should be set to 
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if 

the heated tip is applied for too long, so be careful!

• Strong 

viscosity

 

Unleaded solder is more viscous (sticky, less prone to fl ow) 
than ordinary solder so use caution not to let solder bridges 
occur such as on IC pins, etc.

•  Usable with ordinary solder
 

It is best to use only unleaded solder but unleaded solder may 
also be added to ordinary solder.

NOTE  THE  IC101,  IC201,  IC1301  and  J101  ON  THE  
MAIN  BOARD  REPLACING
IC101, IC201, IC1301 and J101 on the MAIN board cannot ex-
change with single. When IC101, IC201, IC1301 and J101 on the 
MAIN board are damaged, exchange the entire mounted board.

 Computer 

IBM PC/AT or compatible computer preinstalled with the following Windows operating 
systems:

– Windows XP Home Edition (Service Pack 2 or later)
– Windows XP Professional (Service Pack 2 or later)
– Windows XP Media Center Edition 2004 (Service Pack 2 or later)
– Windows XP Media Center Edition 2005 (Service Pack 2 or later)
– Windows Vista Home Basic
– Windows Vista Home Premium
– Windows Vista Business
– Windows Vista Ultimate 

Not supported by 64 bit version OS.
Not supported by OSs other than above.

 CPU: Pentium III 450 MHz or higher (For Windows Vista, Pentium III 800 MHz or 

higher)

 RAM: 128 MB or more (For Windows Vista, 512 MB or more)

 Hard Disk drive: 200 MB or more of available space (1.5 GB or more is recommended)

More space may be required, depending on the version of the operating system. 
Additional space is required for storing music data.

 Display: 

– Screen Resolution: 800 × 600 pixels (or higher) (recommended 1,024 × 768 or 

higher)

– Colors: High Color (16 bit) (or higher)

 CD-ROM drive (supporting Digital Music CD playback)

 Sound board

 USB port (Hi-Speed USB is recommended)

 Internet Explorer 6.0 or later needs to be installed.

We do not guarantee operation for all computers even if they meet the above System 
Requirements.

Not supported by the following environments:
– Personally constructed computers or operating systems
– An environment that is an upgrade of the original manufacturer-installed operating 

system

– Multi-boot environment
– Multi-monitor environment
– Macintosh

NOTE  OF  MAIN  BOARD  REPLACING
When the MAIN board is replaced, format it according to the fol-
lowing.

You can format the built-in flash memory of the player.
If the built-in flash memory is formatted, all audio data, the “Auto Transfer” 
software and Operation Guide (this manual) will be erased. Be sure to verify 
the data stored in the memory prior to formatting, and export any necessary 
data to the hard disk of your computer or other device.

/ button

 button

/HOME button

 This function is only available in pause mode.

 When the remaining battery is low, you cannot format the player. Charge the battery 

before formatting.

 This function is not available while/after using FM radio. If you want to use this function 

after FM radio, operate from the HOME menu to select 

 (All Songs) or 

 (Sports 

Shuffle) to confirm.

 If you format the built-in flash memory of the player, data in the “MUSIC” folder is 

erased, but the “MUSIC” folder is left on the player.





/ button to select 

 button to confirm.



/ button to select “Advanced Settings>,” and then 

 button to confirm.



/ button to select “Initialize>,” and then press the 

 button to confirm.



/ button to select “Format>,” and then press the 

 button to confirm.



/ button to select “OK,” and then press the 

button to confirm.
“FORMATTING...” appears and formatting starts.
When formatting is completed, “COMPLETE” appears.

Select “Cancel” in step 



, and press the 

 button to confirm.

Press the  /HOME button.

 Do not format the built-in flash memory of the player in Windows Explorer. When you 

formatted the player in Windows Explorer accidently, do it again on the player

.