Read Sony NW-A25 / NW-A25HN / NW-A26HN / NW-A27HN Service Manual online
NW-A25/A25HN/A26HN/A27HN
30
4-4-2. Key check (KEY)
This mode can be check the operation of the keys.
This mode can be check the operation of the keys.
Checking method:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “1. SETTING THE TEST MODE” on page 23)
2. Press the [
v
]/[
V
] keys to select the “OTHER”, and press the
[
B
] key to enter the minor item.
3. Press the [
v
]/[
V
] keys to select the “KEY”.
4. Press the [
u
] key, all keys are displayed.
Note: There is a display of “BT”, but there is no [BT] key on this unit.
OTHER KEY
UP
PLAY
DOWN
BT
VOL+
FF VOL-
REW
OPTION
HOLD
BACK
Screen display
5. The character corresponding to the key is selected every time
the key is pressed.
6. Slide the [HOLD] switch from ON to OFF, return to minor
item selection screen.
4-4-3. Frequency check that presses key (KEYNUM)
Note: Not used for the servicing.
If you have entered this mode by mistake, press the [BACK] key in
a state in which slide the [HOLD]
a state in which slide the [HOLD]
switch
from OFF to ON, return
to minor item selection screen.
4-4-4. Format (FORMAT)
Note: Not used for the servicing.
Format the this unit from “Settings”
“Common settings” “Re-
set/Format”
“Format System Storage” in the home menu of the
normal mode when the this unit should format.
4-4-5. Destination setting (DEST)
Note: Not used for the servicing.
4-4-6. Sound pressure regulation setting (SPSET)
Note: Not used for the servicing.
4-4-7. Firmware version check (FWVER)
This mode can be check the fi rmware version.
This mode can be check the fi rmware version.
Checking method:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “1. SETTING THE TEST MODE” on page 23)
2. Press
the
[
v
]/[
V
] keys to select the “OTHER” and press the
[
B
] key to enter the minor item.
3. Press the [
v
]/[
V
] keys to select the “FWVER”.
4. Press the [
u
] key, the fi rmware version is displayed.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
OTHER FWVER
X.XX.XX
MODEL NAME
NW-A25
SERIAL NO
XXXXXXX
BT MAC ADR
XX-XX-XX-XX-XX-XX
Screen display
Firmware version
Model name
Serial No.
Bluetooth MAC address
5. Press the [BACK] key, return to minor item selection screen.
4-4-8. NAND capacity check (NCAPCHK)
This mode can be check the capacity of NAND fl ash memory,
present bad block, maximum bad block, and vender ID.
This mode can be check the capacity of NAND fl ash memory,
present bad block, maximum bad block, and vender ID.
Checking method:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “1. SETTING THE TEST MODE” on page 23)
2. Press
the
[
v
]/[
V
] keys to select the “OTHER”, and press the
[
B
] key to enter the minor item.
3. Press the [
v
]/[
V
] keys to select the “NCAPCHK”.
4. Press
the
[
u
] key, capacity of NAND fl ash memory, present
bad block, maximum bad block, and vender ID are displayed.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
OTHER NCAPCHK
13.5GB
BADBLOCK
CUR(0)/MAX(0)
VENDOR(XxXXXXXX)
XXXXXXXX
Screen display
Capacity of NAND flash memory
Number of present bad block
(It makes an error the acquisition of
the number of bad blocks at “-1”)
Number of maximum bad block
(It makes an error the acquisition of
the vendor information at “-1”)
(It makes an error the acquisition of
the number of bad blocks at “-1”)
Number of maximum bad block
(It makes an error the acquisition of
the vendor information at “-1”)
Vendor ID of NAND flash memory
Vendor name of NAND flash memory
5. Press the [BACK] key, return to minor item selection screen.
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