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Note 1: Please use the destination setting tool in Windows XP or later.
Note 2:  Please install Windows Media Player 11 or later to make the unit 

recognize as MTP.

Note 3: Confi rm the method of obtaining the destination setting tool to the 

service headquarters.

Procedure:
1.  Obtain the destination setting tool (”change_destination_

NWZS770.zip”).

2.  Copy the destination setting tool to root directory of C drive on 

PC.

Note 4: The destination setting tool can be saved any drive as long as the 

folder path is with English (one byte character).

 

Described with the example that “the folders were saved under 
root directory of C drive” on this service manual.

Note 1: Please use the destination setting tool after closing music transfer 

application software.

Will be described with below conditions as an example.
Destination  : East European

Procedure:
1.  Connect “WALKMAN” to PC.
 

(The power supply of “WALKMAN” is automatically turned on)

2.  Open the my computer window on PC, and confi rm  how 

“WALKMAN” is recognized on PC.

 

In the following example, “WALKMAN” is recognized by 
MTP connection. In this case, the check of the drive letter is 
unnecessary.

 

In the following example, “WALKMAN” is recognized by 
MSC connection. In this case, the check of the drive letter (at 
this example, it is “F”) is necessary.

3.  Start the command prompt application software, and move to 

the folder in which the destination setting tool which wants to 
write in is stored.

 

(In this example, “cd c:\EE” is inputted)

C:\>cd c:\EE

C:\EE>

4.  Input the following command according to the information 

checked at step 2.

 

MSC connection  : updating.bat f:

 

 

  (The part of “f” changes with drive letters)

C:\EE>updating.bat f:

 

MTP connection  : updating-mtp

C:\EE>updating-mtp

NOTE  THE  BOARDS  REPLACING
When the EMMC board or BT board are replaced, process in order 
of the following.

When the EMMC board is replaced:

1. 

Destination setting (page 5)

2. 

BT Clock adjustment value setting (page 7)

3. 

Format (page 8)

4. 

Reset all setting (page 8)

5. 

Wallpapers setting (page 8)

When the BT board is replaced:

1. 

BT Clock adjustment value setting (page 7 or 8)

1-1. Outline
The destination cord is preset in factory. The destination should be 
change when the EMMC board is replaced in repairing.

EMMC board

Model

Capacity

Part No. of 

MAIN board

Pre-installed 

destination 

code

NWZ-S773BT

4GB

9-885-171-43

E

NWZ-S774BT

8GB

9-885-171-44

E

NWZ-S775BT

16GB

9-885-171-45

E

Destination code

Model

Area

Destina-

tion code

Remark (Default 

setting for each item)

NWZ-S773BT

East 

European

EE

EQ: None

NWZ-S774BT

Canadian

CA

EQ: None

AEP, UK,

AEP, UK

(Qriocity 

ver.) 

CEW

EQ: None

East 

European

EE

EQ: None

E, 

Australian, 

Tourist

E

EQ: None

Mexican

MX3

EQ: Custom 1

NWZ-S775BT

AEP, UK

(Qriocity 

ver.)

CEW

EQ: None

East 

European

EE

EQ: None

5. Confi rm that the following message has been displayed, and 

input “y”, and press the Enter key on PC.

Note 2: When the Enter key on PC is pressed, the “WALKMAN” is formatted.

C:\EE>rem #

6.  The following message is displayed. Then, destination setting 

operation starts.

 

C:\EE>

7.  The “WALKMAN” reboots automatically after the destination 

data is updated. After rebooting, the updating is success when 
USB connection screen is displayed on the liquid crystal dis-
play of the “WALKMAN”.

 

After rebooting, check that USB connection screen is dis-
played on the liquid crystal display of the “WALKMAN”.

8.  Input “exit” and press the Enter key on PC to close the com-

mand prompt application software.

C:\EE>exit

9.  Disconnect the “WALKMAN” from PC.
10. Press any key of “WALKMAN” to turn the power on.
11. Press the [HOME] key for more 1.5 seconds, the home menu 

is displayed.

12. Slide the [HOLD] key from OFF to ON.
13. Press the key as following order.
 

[

v

] 

 [

V

] 

 [BACK]  [OPTION]  [VOL –]  [VOL +]  

 [

B

] 

 [

b

] 

 [

u

] 

 [

u

]

14. The “WALKMAN” reboots and the color bar is displayed on 

the liquid crystal display.

15. Enter the test mode when any keys are pressed in the state of 

step 14, and slide the [HOLD] key from ON to OFF.

16. Press the [

v

]/[

V

] keys to select the “OTHER”, and press the 

[

B

] key to enter the minor item.

POWER

AUDIO

VIDEO

OTHER

CLESTE

DAC

DIREC

BLUETOOTH

FM

SHUTDOWN

EXITTEST

CLOCK
KEY
KEYNUM
FORMAT
DEST
SPSET
FWVER
NCAPCHK

17. Press the [

v

]/[

V

] keys to select the “DEST”.

POWER

AUDIO

VIDEO

OTHER

CLESTE

DAC

DIREC

BLUETOOTH

FM

SHUTDOWN

EXITTEST

CLOCK
KEY
KEYNUM
FORMAT
DEST
SPSET
FWVER
NCAPCHK

18. Press the [

u

] key, and check if the destination is updated 

properly.

CEV [ SPS: OFF ]

CEV

19. Press the [BACK] key twice, return to major item selection 

screen.

20. Press the [

v

]/[

V

] keys to select the “EXITTEST”, and press 

the [

u

] key to select the “SURE ?”.

POWER

AUDIO

VIDEO

OTHER

CLESTE

DAC

DIREC

BLUETOOTH

FM

SHUTDOWN

EXITTEST

SURE?

21. Press the [

u

] key, turn the power off and release the test 

mode.

Note 3: Execute “Reset all settings” absolutely at the end (refer to “4. Re-

set all setting” on page 8).

2.  BT Clock adjustment value setting
2-1. Outline
In this unit, it is necessary to write an adjustment value corre-
sponding to the BT board to the NAND IC on the EMMC board.
Therefore, when the BT board or MAIN board are replaced, write 
the adjustment value to the NAND IC on the EMMC board using 
the BT Clock adjustment value setting tool.

Note: Confi rm the method of obtaining the BT Clock adjustment value 

setting tool to the service headquarters.

2-2.  Confi rmation method of the BT Clock adjustment value
Confi rmation method of the BT Clock adjustment value is differ-
ent according to replaced parts.

When the complete EMMC board is replaced:
Procedure:
1.  Disassemble “WALKMAN” until the state of the following 

fi gure.

 

(Refer to “2. DISASSEMBLY” on page 10 to 21)

2.  Conform the BT Clock adjustment value by seeing the BT 

alignment label on the SUPPORT M, and record it on memo 
etc..

3 6 B P

3.  Assemble the “WALKMAN”.

When the complete BT board is replaced:
Procedure:
1.  Conform the BT Clock adjustment value by seeing the BT 

alignment label on the new BT board, and record it on memo 
etc..

3 6 B P

2.  Peel the BT alignment label off from the new BT board and 

stick it on the SUPPORT M.

Note: Remove the BT 

alignment

 label stuck on the SUPPORT M, or 

stick the new BT 

alignment

 label on the same place.

3.  Replace the BT board for new part, and assemble the “WALK-

MAN”.

Note 1: Please use the BT Clock adjustment value setting tool in Windows 

XP or later.

Note 2: Confi rm the method of obtaining the BT Clock adjustment value 

setting tool to the service headquarters.

Procedure:
1.  Obtain the BT Clock adjustment value setting tool (“set_BT_

CLK_NWZS770.zip”).

2.  Copy the BT Clock adjustment value setting tool folder to root 

directory of C drive on PC.

Note 3: The BT Clock adjustment value setting tool can be saved any 

drive as long as the folder path is with English (one byte charac-
ter).

 

Described with the example that “the folders were saved under 
root directory of C drive” on this service manual.

Note 1: Please use  the BT Clock adjustment value setting tool after clos-

ing music transfer application software.

Procedure:
1.  Connect “WALKMAN” to PC.
 

(The power supply of “WALKMAN” is automatically turned on)

2.  Open the my computer window on PC, and confi rm  how 

“WALKMAN” is recognized on PC.

 

In the following example, “WALKMAN” is recognized by 
MTP connection. In this case, the check of the drive letter is 
unnecessary.

 

In the following example, “WALKMAN” is recognized by 
MSC connection. In this case, the check of the drive letter (at 
this example, it is “F”) is necessary.

3.  Start the command prompt application software, and move to 

the folder in which the BT Clock adjustment value setting tool 
which wants to write in is stored.

 

(In this example, “cd c:\ICX1224” is inputted)

C:\>cd c:\ICX1224

C:\ICX1224>

4.  Input the following command according to the information 

checked at step 2.

 

MSC connection  : updating.bat f:

 

 

  (The part of “f” changes with drive letters)

C:\ICX1224>updating.bat f:

 

MTP connection  : updating-mtp

C:\ICX1224>updating-mtp

5. Confi rm that the following message has been displayed, and 

input “y”, and press the Enter key on PC.

y

C:\ICX1224>updating-mtp

6. Confi rm that the following message has been displayed, and 

input the BT Clock adjustment value confi rmed by “2-2. Con-
fi rmation method of the BT Clock adjustment value” on page 
7, and press the Enter key on PC.

7.  The “WALKMAN” reboots automatically after the BT Clock 

adjustment value is updated. After rebooting, the updating is 
success when USB connection screen is displayed on the liq-
uid crystal display of the “WALKMAN”.

Note 2: “memory initialization” of the “WALKMAN” is also performed.

8.  Input “exit” and press the Enter key on PC to close the com-

mand prompt application software.

C:\ICX1224>exit

9.  Disconnect the “WALKMAN” from PC.

You can format the built-in flash memory of your Walkman.

If the memory is formatted, all data (songs, videos, photos, etc., including sample data installed at the
factory, bundled software installer, and the Help guide) will be erased. Be sure to verify the data stored
in memory prior to formatting, and export any important data to the hard disk of your computer.
Be sure not to initialize (format) the built-in flash memory of your Walkman using Windows Explorer. If
you have formatted with Windows Explorer, format again using the Walkman.

From the Home menu, select 

 [Settings] 

 [Common Settings] 

 [Reset/Format] 

[Format].

Select [Yes].

[All data will be deleted. Proceed?] appears.
Select [Yes].

When initialization finishes, [Memory formatted.] appears.

You can reset your Walkman to the default settings. Resetting the Walkman will not delete data such as
music, video, and photos.

From the Home menu, select 

 

[Settings]  

[Common 

Settings]  

[Reset/Format]  

[Reset

All Settings] 

 [Yes].

If you select this function during playback, your Walkman will pause playback before performing the
reset process.
Resetting your Walkman will delete pairing information of Bluetooth devices, except for the supplied
Bluetooth headphones.

How to install the wallpaper fi les into the “WALKMAN”.

Note: Confi rm the method of obtaining the 

wallpaper fi les

 to the service 

headquarters.

Procedure:
1.  Unzip the wallpaper fi les to get the following fi les (jpeg fi le).

2.  Connect the “WALKMAN” to PC.
3.  Open the my computer window on PC, and open the folder  

according to the following procedure.

 MSC 

connection:

 

Open the folder in order of “WALKMAN” 

 “PICTURE”.

 MTP 

connection:

 

Open the folder in order of “WALKMAN” 

 “Storage Me-

dia” 

 “PICTURE”.

4.  Copy “WALLPAPERS” folder created at step 1 into the “PIC-

TURE” folder.

1.  BT Clock adjustment value setting
Refer to “2. BT Clock adjustment value setting” (page 7), and do 
work.