NWZ-S543, NWZ-S544, NWZ-S545 - Sony Audio Service Manual (repair manual). Page 22

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NWZ-S543/S544/S545
22

4-4-3. Key check
The operation of the key is confirmed.

Checking method:
1.  Enter the test mode.
2.  Press the [
v
]/[
V
] key to select the “OTHER”, and press the [
B
] 
key to enter the minor item.
3.  Press the [
v
]/[
V
] key to select the “KEY”.
4.  Press the [
u
] key, all keys are displayed.
 
liquid crystal display
PLAY
OPTION
BACK
HOLD
RW
UP
DOWN
VOL+
VOL–
SPK
5.  The character corresponding to the key is selected every time 
the key other than [
B
] is pressed.
6.  Press the [
B
] key, return to minor item selection screen.

4-4-4. Format
The user’s area is formatted, and ICV for the video and ICV for 
audio are initialized.

Note: Not used for the servicing.
 
  Format the set from “Settings” 0 “Common settings” 0 “Format” 
when it home menu in usually operates when the set should format 
it.

4-4-5. Destination setting
The destination setting, language information, and sound pressure 
regulation information are written in the NAND flash memory.

Note: Not used for the servicing.

4-4-6.  Firmware version check
The firmware version is displayed.

Checking method:
1.  Enter the test mode.
2.  Press the [
v
]/[
V
] key to select the “OTHER”, and press the [
B
] 
key to enter the minor item.
3.  Press the [
v
]/[
V
] key to select the “FWVER”.
4.   Press the [
u
] key, the firmware version is displayed.
 
liquid crystal display
FWVER
FWVER
X.XX.XX
MODEL NAME
NWZ–####
SERIAL NO
@@@@@@@
 
X.XX.XX 
: Firmware version
 
#### 
: Model name
 
@@@@@@@ : Serial No.
5.  Press the [BACK] key, return to minor item selection screen.

4-4-7.  NAND capacity check
Capacity of NAND flash memory, present bud block maximum 
bud block, and vender ID are displayed.

Checking method:
1.  Enter the test mode.
2. Press 
the 
[
v
]/[
V
] key to select the “OTHER”, and press the [
B
] 
key to enter the minor item.
3.  Press the [
v
]/[
V
] key to select the “NCAPCHK”.
4.   Press the [
u
] key, capacity of NAND flash memory, present 
bud block maximum bud block, and vender ID are displayed.
 
liquid crystal display
NCAPCHK
NAND TOTAL SIZE
X GB
BAD BLOCK
@@@@
MAX BAD BLOCK
####
VENDER
$$$$
 
X 
: Capacity of NAND fl ash memory
 
 
  4/8/16 (4 GB/8 GB/16 GB)
 
@@@@ 
: Number of present bud block
 
 
  (It makes an error the acquisition of the 
 
 
  Number of bud blocks at “–1”)
 
#### 
: Number of maximum bud block
   
  (It makes an error the acquisition of the 
 
  vender IDat at “–1”)
 
$$$$ 
: Vender ID od NAND fl ash memory
  
 
0xec 
(Samsung)
  
 
0x2c 
(Micron)
  
 
0xad 
(Hynix)
 
 
  (It makes an error the acquisition of the 
 
 
  vender ID at “–1”)
5.  Press the [BACK] key, return to minor item selection screen.
Display
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