DOWNLOAD Sony NW-A25 / NW-A25HN / NW-A26HN / NW-A27HN Service Manual ↓ Size: 2.93 MB | Pages: 44 in PDF or view online for FREE

Model
NW-A25 NW-A25HN NW-A26HN NW-A27HN
Pages
44
Size
2.93 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
nw-a25-nw-a25hn-nw-a26hn-nw-a27hn.pdf
Date

Sony NW-A25 / NW-A25HN / NW-A26HN / NW-A27HN Service Manual ▷ View online

NW-A25/A25HN/A26HN/A27HN
29
4-3-2. User specifi cation contents playback 1 (USER1)
This mode can be check the user specifi cation contents playback.
This mode is not used for the servicing. Please check in normal 
mode.
Checking method:
1.  By releasing the test mode, please to the normal mode.
 
(Refer to “2. RELEASING THE TEST MODE” on page 23)
2.  Connect the PC and this unit, and copy the video fi le (User1.
mp4) to root of this unit.
Copy the file to root of this unit.
(drag and drop)
3.  Disconnect the PC and this unit.
4.  Press the [BACK] key for more 1.5 seconds, the home menu is 
displayed.
5.  Press the [
v
]/[
V
]/[
b
]/[
B
] keys to select the “Videos”, and 
press the [
u
] key.
6. Press 
the 
[
v
]/[
V
] keys to select the “All Videos”, and press the 
[
u
] key.
7.  Press the [
v
]/[
V
] keys to select the copied fi le in step 2.
8.  Press the [
u
] key, check that the video fi le is playback.
4-3-3. User specifi cation contents playback 2 (USER2)
This mode can be check the user specifi cation contents playback.
This mode is not used for the servicing. Please check in normal 
mode.
Refer to “4-3-2. User specifi cation contents playback 1 (USER1)” 
for checking method.
4-3-4. User specifi cation contents playback 3 (USER3)
This mode can be check the user specifi cation contents playback.
This mode is not used for the servicing. Please check in normal 
mode.
Refer to “4-3-2. User specifi cation contents playback 1 (USER1)” 
for checking method.
4-4. Other (OTHER)
MPTAPP (X.XX.XX.XX)
Screen display
POWER
AUDIO
VIDEO
OTHER
CLESTE
DIREC
BLUETOOTH
NFC
USB HOST
SD
FM
NC
SHUTDOWN
EXITTEST
CLOCK
KEY
KEYNUM
FORMAT
DEST
SPSET
FWVER
NCAPCHK
4-4-1.  Clock check (CLOCK)
This mode can be check the movement of an internal clock.
Checking method:
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 “CLOCK”.
4.  Press the [
u
] key, date and time are displayed.
 
“START” changes into “OK” if the movement of an internal 
clock is confi rmed. 
 
(Displayed characters/values in the following fi gure  are  ex-
ample)
OTHER CLOCK
Thu, Jul 09 2015
19:01:11.824304
OK
Screen display
Date
Time
5.  Press the [BACK] key, return to minor item selection screen.
NW-A25/A25HN/A26HN/A27HN
30
4-4-2.  Key check (KEY)
This mode can be check the operation of the keys.
Checking method:
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] 
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.
Checking method:
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)
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.
Checking method:
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)
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”)
Vendor ID of NAND flash memory
Vendor name of NAND flash memory
5.  Press the [BACK] key, return to minor item selection screen.
NW-A25/A25HN/A26HN/A27HN
31
4-5. CLESTE
MPTAPP (X.XX.XX.XX)
Screen display
POWER
AUDIO
VIDEO
OTHER
CLESTE
DIREC
BLUETOOTH
NFC
USB HOST
SD
FM
NC
SHUTDOWN
EXITTEST
WCABLE
WOCABLE
4-5-1.  Clear stereo setting (With cable) (WCABLE)
Note: Not used for the servicing.
4-5-2.  Clear stereo setting (No cable) (WOCABLE)
Note: Not used for the servicing.
4-6. DIREC
MPTAPP (X.XX.XX.XX)
Screen display
POWER
AUDIO
VIDEO
OTHER
CLESTE
DIREC
BLUETOOTH
NFC
USB HOST
SD
FM
NC
SHUTDOWN
EXITTEST
OUTPUT
REC
PLAY
FORMAT
MICCHK
4-6-1.  Direct recording output check (OUTPUT)
Note: Not used in this model.
4-6-2.  Direct recording recording (REC)
Note: Not used in this model.
4-6-3.  Direct recording playback (PLAY)
Note: Not used in this model.
4-6-4.  Direct recording format select (FORMAT)
Note: Not used in this model.
4-6-5.  Built-in microphone check (MICCHK)
Note: Not used in this model.
4-7. Bluetooth (BLUETOOTH)
MPTAPP (X.XX.XX.XX)
Screen display
POWER
AUDIO
VIDEO
OTHER
CLESTE
DIREC
BLUETOOTH
NFC
USB HOST
SD
FM
NC
SHUTDOWN
EXITTEST
SETADR
CONNECT
SETFRQ
USER1
USER2
USER3
4-7-1. Bluetooth address setting (SETADR)
This mode can be set the Bluetooth address setting.
This mode is not used for the servicing. Please check in normal 
mode.
Checking method:
1.  By releasing the test mode, please to the normal mode.
 
(Refer to “2. RELEASING THE TEST MODE” on page 23)
2.  Connect the PC and this unit, and copy the audio fi le (User1.
wav) to root of this unit.
Copy the file to root of this unit.
(drag and drop)
3.  Disconnect the PC and this unit.
4.  Press the [BACK] key for more 1.5 seconds, the home menu is 
displayed.
5. Press 
the 
[
v
]/[
V
]/[
b
]/[
B
] keys to select the “Bluetooth”, and 
press the [
u
] key.
6.  Press the [
v
]/[
V
] keys to select the “Add Device (Pairing)”, 
and press the [
u
] key.
– Continued on next page –
NW-A25/A25HN/A26HN/A27HN
32
7.  Put the Bluetooth device you want to connect with in discover-
able mode.
 
(Refer to the operating instructions supplied with the Blue-
tooth device for details on procedures for putting it in discov-
erable mode)
8.  Select the that Bluetooth device to pairing from the list, and 
press the [
u
] key.
9. Confi rm that the screen of connection completion is displayed.
10.  Press the [BACK] key for more 1.5 seconds, the home menu is 
displayed.
11.  Press the [
v
]/[
V
]/[
b
]/[
B
] keys to select the “Music”, and press 
the [
u
] key.
12. Press the [
v
]/[
V
] keys to select the “All Songs”, and press the 
[
u
] key.
13. Press the [
v
]/[
V
] keys to select the copied fi le in step 2.
14. Press the [
u
] key, check that the audio fi le is playback.
4-7-2.  Bluetooth connection check (CONNECT)
Connected confi rmation to the address selected in “SETADR” can 
be done in this mode.
This mode is not used for the servicing. Please check in normal 
mode.
Refer to “4-7-1. Bluetooth address setting (SETADR)” on page 31 
for checking method.
4-7-3.  Bluetooth frequency setting (SETFRQ)
Note: Not used for the servicing.
4-7-4. User specifi cation contents playback 1 (USER1)
This mode can be user specifi cation contents playback to the de-
vice with the Bluetooth address described in “SETADR”.
This mode is not used for the servicing. Please check in normal 
mode.
Refer to “4-7-1. Bluetooth address setting (SETADR)” on page 31 
for checking method.
4-7-5. User specifi cation contents playback 2 (USER2)
This mode can be user specifi cation contents playback to the de-
vice with the Bluetooth address described in “SETADR”.
This mode is not used for the servicing. Please check in normal 
mode.
Refer to “4-7-1. Bluetooth address setting (SETADR)” on page 31 
for checking method.
4-7-6. User specifi cation contents playback 3 (USER3)
This mode can be user specifi cation contents playback to the de-
vice with the Bluetooth address described in “SETADR”.
This mode is not used for the servicing. Please check in normal 
mode.
Refer to “4-7-1. Bluetooth address setting (SETADR)” on page 31 
for checking method.
4-8. NFC
MPTAPP (X.XX.XX.XX)
Screen display
POWER
AUDIO
VIDEO
OTHER
CLESTE
DIREC
BLUETOOTH
NFC
USB HOST
SD
FM
NC
SHUTDOWN
EXITTEST
ANTENNA
PRBS
OXOXOX
4-8-1.  NFC antenna self test (ANTENNA)
Note: Not used for the servicing.
4-8-2.  NFC PRBS test (PRBS)
This mode can be check the transmission format of the NFC.
This mode is not used for the servicing. Please check in normal 
mode.
Note: If you have entered this mode by mistake, press the [RESTART] key 
on the rear of this unit, return to test mode start screen (color bar).
Checking method:
1.  By releasing the test mode, please to the normal mode.
 
(Refer to “2. RELEASING THE TEST MODE” on page 23)
2.  Press the [BACK] key for more 1.5 seconds, the home menu is 
displayed.
3.  Touch the N mark of the Bluetooth device with the this unit.
This unit
NFC compatible
headphone, active speaker etc.
4. Confi rm that the screen of connection completion is displayed.
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