ICD-SX750, ICD-SX750D, ICD-SX850, ICD-SX850D, ICD-SX950 - Sony Audio Service Manual (repair manual). Page 2

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.

NOTES  ON  CHIP  COMPONENT  REPLACEMENT
•  Never reuse a disconnected chip component.
•  Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

FLEXIBLE  CIRCUIT  BOARD  REPAIRING
•  Keep the temperature of soldering iron around 270 °C during 

repairing.

•  Do not touch the soldering iron on the same conductor of the 

circuit board (within 3 times).

•  Be careful not to apply force on the conductor when soldering 

or unsoldering.

Power requirements
Two LR03 (size AAA) alkaline batteries (not supplied): 3.0 V DC
Two NH-AAA rechargeable batteries (supplied): 2.4 V DC

Operating temperature
5 ˚C - 35 ˚C 

Dimensions (w/h/d) (not incl.
projecting parts and controls) (JEITA)*

4

31.3 

× 130.0 × 15.4 mm 

Mass (JEITA)*

4

Approx. 77 g including NH-AAA rechargeable batteries

*

4

  Measured value by the standard of JEITA

  (Japan Electronics and Information
 Technology 

Industries 

Association)

Supplied accessories
IC Recorder (1)
 Remove 

the 

fi lm on the display window

  before you use the IC recorder.
LR03 (size AAA) alkaline batteries (2) or
NH-AAA (size AAA) rechargeable batteries (2)
Stereo headphones* (1) (Except AEP model)
Wind Screen (1)
Use this to cover the built-in microphones.
USB connecting cable (1)
Application Software, Digital Voice Editor (CD-ROM)
Application Software, Sound Forge Audio Studio LE (CD-ROM)*
(SX750: US, Canadian model/SX850: AEP model)
Application Software, Dragon Naturally Speaking (DVD-ROM)*
(SX750D/SX850D)
Cradle* (1) (SX750D/SX850D)
Stand (1) 
Carrying pouch (1)
Telephone recording microphone* (1) (E, Chinese, Korea, Taiwan model)
Battery case* (Except SX750: US, Canadian, Latin American model)
Operating Instructions

* The stereo headphones, the cradle , the battery case and

 the microphone, and some of the software are supplied with some models           
in some regions only.

Design and specifi cations are subject to change without notice.

CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.