NWZ-F885, NWZ-F886, NWZ-F887 - Sony Audio Service Manual (repair manual). Page 29

7.  Return to the screen of step 1 by tapping the [END] button.

END

10:10

ICX-1237

01.POWER

02.AUDIO

03.FM

04.NC

05.DIREC

08.VIDEO

09.OTHER

12.WIFI

Note 1: After work is completed, uninstall the service mode tool abso-

lutely.

  (Refer to “3. UNINSTALLING METHOD OF THE SERVICE 

MODE TOOL” on page 23 about procedure)

Note 2: When this unit connects with some site in order to perform the 

operation check (When the connection with WiFi and the opera-
tion check of browser, etc. are performed etc.), the WiFi setting 
list and the history of browser, etc. remain on this unit.

 

    In that case, perform reset and initialization with reference to 

page 4.

 

    (When initialization is performed, all user informations are 

cleared)

4-3. BATTERY
The learning cycle value of built-in rechargeable battery held to 
the NVP domain of the MAIN board can be rewritten.

Execution condition:
When the BATTERY ASSY (BAT1) is replaced, perform this 
mode absolutely.

Note: When you assemble or disassemble the BATTERY ASSY 

(BAT1), do work not to make it short-circuit absolutely.

Preparation:
• 

Replace the BATTERY ASSY (BAT1) to new part with refer-
ence to “2. DISASSEMBLY” (page 13 to 20).

Note 1: Change this unit into the state before assembling SV CASE ASSY 

(the state where the battery is showing).

• 

Install the service mode tool in “WALKMAN” with reference 
to “2. INSTALLING METHOD OF THE SERVICE MODE 
TOOL” (page 21).

Note 2: “ServiceModeTool” is used in this mode.

Procedure:
1.  Start “ServiceModeTool” by tap the “ServiceModeTool” icon.
 

(The display position in the following fi gure is an example)