Sony NW-ZX300 Service Manual page 38

NW-ZX300/ZX300A
4-2. Audio (Audio)
Screen display (1/2)
Diagnosis APP
[ver X.XX.XX]
Audio
Output sound check
S/N check
Frequency check1
Frequency check2
Separation-L check
Separation-R check
Max output check
Normalizer
Sound pressure
Play user file-1
Play user file-2
Play user file-3
Play user select
Common key input setting of the audio item:
[+]/[–] : Selection of "play time", "output", "volume"
When select a "play time"
[ ]/[ ] : Play time up/down (0 to 60)
. >
When select a "output"
[ ]/[ ] : Output switching
. >
(SE (headphone)/SE (beep) (headphone)/
LO (line out)/LO (beep) (line out)/BTL (bal-
anced)/BTL (beep) (balanced))
When select a "volume"
[ ]/[ ] : Volume up/down (0 to 120)
. >
4-2-1. Output sound check (Output sound check)
It can be output the "Sampling rate: 44.1 kHz/Frequency: 1 kHz
(L/R-ch)/Bit rate: 16 bit" audio signal for the output sound check.
Procedure:
1. Enter the test mode.
(Refer to "1. SETTING THE TEST MODE" on page 35)
2. Press the [+]/[–] keys to select the "Audio", and press the [
or [ ] key to enter the minor item.
>
3. Press the [+]/[–] keys to select the "Output sound check".
4. Press the [ ] key, the audio signal output screen is displayed.
u
Screen display
Audio output
(AUD OUTP command)
sampling [ 44100]
bit rate [16]
freq(R) [ 1000]
[ 1000]
freq(L)
play time [10]
output [SE]
volume [ 90]
5. Press the [ ] key, and output an audio signal using the set-
u
tings selected.
6. Slide the [HOLD] switch in the direction of on, to return to
minor item selection screen.
38
Screen display (2/2)
Diagnosis APP
[ver X.XX.XX]
Audio
Separation-R check
Max output check
Normalizer
Sound pressure
Play user file-1
Play user file-2
Play user file-3
Play user select
Output HiRes check
HP (BTL) gain
HP (SE) gain
HP check
UPL check
u
The format of the
audio signal output
Item of key input settings
4-2-2. S/N check (S/N check)
It can be output the "Sampling rate: 44.1 kHz/Frequency: 0 kHz
(L/R-ch)/Bit rate: 16 bit" audio signal for the S/N check.
Procedure:
1. Enter the test mode.
(Refer to "1. SETTING THE TEST MODE" on page 35)
2. Press the [+]/[–] keys to select the "Audio", and press the [
or [ ] key to enter the minor item.
>
3. Press the [+]/[–] keys to select the "S/N check".
4. Press the [ ] key, the audio signal output screen is displayed.
u
Screen display
Audio S/N
(AUD SNZE command)
[ 44100]
sampling
bit rate
freq(R) [
freq(L) [
play time
output
volume
5. Press the [ ] key, and output an audio signal using the set-
u
tings selected.
6. Slide the [HOLD] switch in the direction of on, to return to
minor item selection screen.
4-2-3. Frequency response check 1 (Frequency check1)
It can be output the "Sampling rate: 44.1 kHz/Frequency: 20 Hz
(L/R-ch)/Bit rate: 16 bit" audio signal for the frequency response
check.
]
Procedure:
1. Enter the test mode.
(Refer to "1. SETTING THE TEST MODE" on page 35)
2. Press the [+]/[–] keys to select the "Audio", and press the [
or [ ] key to enter the minor item.
>
3. Press the [+]/[–] keys to select the "Frequency check1".
4. Press the [ ] key, the audio signal output screen is displayed.
u
Screen display
Audio frequency-1
(AUD F1LR command)
sampling [ 44100]
bit rate
freq(R)
freq(L)
play time
output
volume
5. Press the [ ] key, and output an audio signal using the set-
u
tings selected.
6. Slide the [HOLD] switch in the direction of on, to return to
minor item selection screen.
The format of the
[16]
audio signal output
0]
0]
[10]
[SE]
Item of key input settings
[ 90]
The format of the
[16]
audio signal output
[ 20]
[ 20]
[10]
[SE]
Item of key input settings
[ 90]
]
u
]
u