Sony NWZA816P Service Manual - Page 14

key, 20 Hz 0 dBs L-ch/R-ch VOLUME: 25

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NW-A805/A806/A808/NWZ-A815/A816/A818 4-2-1. Output check "1 kHz 0 dBs L-ch/R-ch VOLUME: 25" audio signal is outputted. Checking method: 1. Enter the test mode. 2. Press the v / V key to select the "AUDIO", and press the B key to enter the minor item. 3. Press the v / V key to select the "OUTPUT". 4. Press the u key, "1 kHz 0 dBs L-ch/R-ch VOLUME: 25" audio signal is outputted. liquid crystal display 4-2-3. Frequency characteristic 1 check "20 Hz 0 dBs L-ch/R-ch VOLUME: 25" audio signal is outputted. Checking method: 1. Enter the test mode. 2. Press the v / V key to select the "AUDIO", and press the B key to enter the minor item. 3. Press the v / V key to select the "F1". 4. Press the u key, "20 Hz 0 dBs L-ch/R-ch VOLUME: 25" audio signal is outputted. liquid crystal display AUDIO OUTPUT 1kHz 0dBs L/Rch HPOUT [ VOL: 25 ] AUDIO F1 20Hz 0dBs L/Rch HPOUT [ VOL: 25 ] START 5. Press the [BACK] key, return to minor item selection screen. 4-2-2. S/N check "Infinity Zero VOLUME: 30" audio signal is outputted. Checking method: 1. Enter the test mode. 2. Press the v / V key to select the "AUDIO", and press the B key to enter the minor item. 3. Press the v / V key to select the "SN". 4. Press the u key, "Infinity Zero VOLUME: 30" audio signal is outputted. liquid crystal display START 5. Press the [BACK] key, return to minor item selection screen. 4-2-4. Frequency characteristic 2 check "20 kHz 0 dBs L-ch/R-ch VOLUME: 25" audio signal is outputted. Checking method: 1. Enter the test mode. 2. Press the v / V key to select the "AUDIO", and press the B key to enter the minor item. 3. Press the v / V key to select the "F2". 4. Press the u key, "20 kHz 0 dBs L-ch/R-ch VOLUME: 25" audio signal is outputted. liquid crystal display AUDIO SN Infinity Zero HPOUT [ VOL: 30 ] AUDIO F2 20kHz 0dBs L/Rch HPOUT [ VOL: 25 ] START 5. Press the [BACK] key, return to minor item selection screen. START 5. Press the [BACK] key, return to minor item selection screen. 14

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14
NW-A805/A806/A808/NWZ-A815/A816/A818
4-2-1.
Output check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1.
Enter the test mode.
2.
Press the
v
/
V
key to select the “AUDIO”, and press the
B
key to enter the minor item.
3.
Press the
v
/
V
key to select the “OUTPUT”.
4.
Press the
u
key, “1 kHz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
AUDIO OUTPUT
1kHz 0dBs L/Rch
HPOUT [ VOL: 25 ]
START
5.
Press the
[BACK]
key, return to minor item selection screen.
4-2-2.
S/N check
“Infinity Zero VOLUME: 30” audio signal is outputted.
Checking method:
1.
Enter the test mode.
2.
Press the
v
/
V
key to select the “AUDIO”, and press the
B
key to enter the minor item.
3.
Press the
v
/
V
key to select the “SN”.
4.
Press the
u
key, “Infinity Zero VOLUME: 30” audio signal
is outputted.
liquid crystal display
AUDIO SN
Infinity Zero
HPOUT [ VOL: 30 ]
START
5.
Press the
[BACK]
key, return to minor item selection screen.
4-2-3.
Frequency characteristic 1 check
“20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1.
Enter the test mode.
2.
Press the
v
/
V
key to select the “AUDIO”, and press the
B
key to enter the minor item.
3.
Press the
v
/
V
key to select the “F1”.
4.
Press the
u
key, “20 Hz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
AUDIO F1
20Hz 0dBs L/Rch
HPOUT [ VOL: 25 ]
START
5.
Press the
[BACK]
key, return to minor item selection screen.
4-2-4.
Frequency characteristic 2 check
“20 kHz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1.
Enter the test mode.
2.
Press the
v
/
V
key to select the “AUDIO”, and press the
B
key to enter the minor item.
3.
Press the
v
/
V
key to select the “F2”.
4.
Press the
u
key, “20 kHz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
AUDIO F2
20kHz 0dBs L/Rch
HPOUT [ VOL: 25 ]
START
5.
Press the
[BACK]
key, return to minor item selection screen.