NWZ-S543, NWZ-S544, NWZ-S545 - Sony Audio Service Manual (repair manual). Page 4

1. Firmware writing
Execute the fi rmware writing with the set assembled to the state of 
the fi gure below after the MAIN board is replaced.
Note: If the set is not assembled to the state of the fi gure below, the 
fi rmware cannot be written.

•  The set is assembled to the state before the TOP COVER 

ASSY is attached

Refer to the following procedures for the fi rmware writing method. 

Note 1: Confi rm the method of obtaining the “Writing information tool” 

used here to the service headquarters.

Note 2: Assemble the set completely after confi rming writing the fi rm-

ware ended.

1-1. Preparation
Prepare the following tools beforehand.

•  PC (Windows XP or Windows Vista)
•  USB cable supplied to WALKMAN (WM-PORT)
•  Write information tool

1-2.  Installing the write information tool
Procedure:
1.  Unzip the supplied zip fi le to get the following folders.

 • 

Write 

Informatiom1.5

 • 

LabVIEW_Runtime_Engine_82

2.  Open the folder in order of “LabVIEW_Runtime_Engine_82” 

→ “lv82rte”. Then, start up “lv82runtime”.

3.  Click “Next” button.

4.  Click “Next” button.

5.  Click “Next” button.

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