SA-NS300 - 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.

CHECKING  FOR  NETWORK  OPERATIONS
Equipment Used:
PC (WINDOWS XP/Vista/7)
Router (802.11b/g, WPS-compatible)
If there is no WPS-compatible router and it is desired to download 
the software for connection (Network Speaker Wi-Fi Utility), con-
tact our Service Division.
Two (2) LAN cables (Category 5 compliant, normal or shield type)

Checking Procedures:
1.  Checking Audio Output (Connection from PC to router not re-

quired.)

 

Input sound from other source to the ANALOG IN terminal of 
the set and check the sound from the set’s speaker.

2. Checking 

Wired 

Connection

 

Connect between PC and the SA-NS300 using a LAN cable. 
(The SA-NS300’s LINK LED illuminates orange.)

 

When the OS is WINDOWS Vista/7, connect the device and 
make sure that the device is detected and displayed.

 

When the OS is WINDOWS XP, enable“UPNP Service”and 
then connect the device. Make sure that the device is pop-up 
displayed on the PC.

3. Checking 

Wireless 

Connection

3-1. Method of checking the connection through the Network 

Speaker Wi-Fi Utility

 

 Connect between PC and the router and between the router 
and the SA-NS300 using LAN cables. (The SA-NS300’s 
LINK LED illuminates orange.)

 

 Activate the Network..Utility and follow the menu to make 
WIRELESS setup.

 

 Upon completion of SETUP, make sure that the LINK LED 
illuminates green.

3-2.  Method of checking the connection through WPS
 

 Prepare a WPS-compatible wireless router. Then press the 
SA-NS300’s WPS key.

 

 Make sure that the device is correctly connected and the 
LINK LED illuminates green.

CAUTION
When you check wireless connection during servicing, the connection 
setup will be changed. At the time of returning the set to the customer 
after servicing, you should inform that wireless connection setup is to be 
made again when using the set in wires connection.

Error Display:
•  LINK LED is blinking red: The Access Point cannot be found 

in WPS connection.

•  LINK LED is illuminated red: Wireless connection is already 

set up and the setup is invalid.

NOTE  OF  REPLACING  THE  WIRELESS  LAN  MODULE
(10SA-NS300)
When replacing the wireless LAN module (10SA-NS300), MAC 
address is changed. Print the following explanation, cut it, and 
hand over it to the customer with the set, when returning the set 
that the repair is completed to the customer.

MAC address of the main unit has been changed by this repair.
When using the MAC address fi ltering function of connection distina-
tion access point equipment, set it again.