NWZ-S754, NWZ-S755 - Sony Audio Service Manual (repair manual). Page 21

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NWZ-S754/S755
21

4-2-9.  Sound pressure regulation level check (SPCHK)
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is outputted.

Checking method:
1.  Enter the test mode.
2.  Press the [
v
]/[
V
] keys to select the “AUDIO”, and press the 
[
B
] key to enter the minor item.
3.  Press the [
v
]/[
V
] keys to select the “SPCHK”.
4.  Press the [
u
] key, “1 kHz 0 dBs L-ch/R-ch VOLUME: 30”  
audio signal is outputted.
 
Screen display
AUDIO SPCHK
1kHz 0dBs L/Rch
HPOUT [ VOL: 30 ]
START
5.  Press the [BACK] key, return to minor item selection screen.
4-2-10.  Speaker check

Note: Not used for the servicing.

4-2-11.  User specifi cation contents playback 1 (USER1)
“/User1.oma” is reproduced.

Checking method:
1.  Enter the test mode.
2.  Press the [
v
]/[
V
] keys to select the “AUDIO”, and press the 
[
B
] key to enter the minor item.
3.  Press the [
v
]/[
V
] keys to select the “USER1”.
4.  Press the [
u
] key, “/User1.oma” is reproduced.
 
Screen display
AUDIO USER1
HPOUT [ VOL: 15 ]
XX:XX
START
    XX:XX : Repetition expert totaling time
5.  Press the [BACK] key, return to minor item selection screen.

4-2-12.  User specifi cation contents playback 2 (USER2)
“/User2.oma” is reproduced.

Checking method:
1.  Enter the test mode.
2.  Press the [
v
]/[
V
] keys to select the “AUDIO”, and press the 
[
B
] key to enter the minor item.
3.  Press the [
v
]/[
V
] keys to select the “USER2”.
4.  Press the [
u
] key, “/User2.oma” is reproduced.
 
Screen display
AUDIO USER2
HPOUT [ VOL: 15 ]
XX:XX
START
    XX:XX : Repetition expert totaling time
5.  Press the [BACK] key, return to minor item selection screen.

4-2-13.  User specifi cation contents playback 3 (USER3)
“/User3.oma” is reproduced.

Checking method:
1.  Enter the test mode.
2.  Press the [
v
]/[
V
] keys to select the “AUDIO”, and press the 
[
B
] key to enter the minor item.
3.  Press the [
v
]/[
V
] keys to select the “USER3”.
4.  Press the [
u
] key, “/User3.oma” is reproduced.
 
Screen display
AUDIO USER3
HPOUT [ VOL: 15 ]
XX:XX
START
    XX:XX : Repetition expert totaling time
5.  Press the [BACK] key, return to minor item selection screen.
Display
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