NWZ-A844, NWZ-A845, NWZ-A846, NWZ-A847 - Sony Audio Service Manual (repair manual). Page 14

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NWZ-A844/A845/A846/A847
14
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
“20 
− 20kHz 0dBs L-ch/R-ch VOLUME: 30” audio signal is out-
putted.
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 “SPKCHK”.
4.  Press the [
u
] key, “20 
− 20kHz 0dBs L-ch/R-ch VOLUME: 
30” audio signal is outputted.
 
Screen display
AUDIO SPKCHK
20-20kHz 0dBs L/Rch
HPOUT [ VOL: 30 ]
START
5.  Press the [BACK] key, return to minor item selection screen.
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.
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