Read Sony NW-A1200 Service Manual online
12
NW-A1200
13. Press the [ ]
u
key, “START” is displayed and “100 kHz 0 dBs
L-ch/R-ch VOLUME: 21” audio signal is outputted.
EL display
START
14. Press the [BACK]
key, return to minor item selection screen.
5-2-4. CH separation check
“1 kHz 0 dBs L-ch/R-ch MP3 VOLUME: 27” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “AUDIO”.
EL display
AUDIO
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “SEP LR”.
EL display
SEP LR
4. Press the [ ]
u
key, “START” is displayed and “1 kHz 0 dBs L-
ch MP3 VOLUME: 27” audio signal is outputted.
EL display
START
5. Press the [BACK]
key, return to minor item selection screen.
6. Press the [ ]
v
/ [ ]
V
key to select the “SEP RL”.
EL display
SEP RL
7. Press the [ ]
u
key, “START” is displayed and “1 kHz 0 dBs R-
ch MP3 VOLUME: 27” audio signal is outputted.
EL display
START
8. Press the [BACK]
key, return to minor item selection screen.
5-2-5. Maximum output check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “AUDIO”.
EL display
AUDIO
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “MAXOUT”.
EL display
MAXOUT
4. Press the [ ]
u
key, “START” is displayed and “1 kHz 0 dBs L-
ch/R-ch VOLUME: 30” audio signal is outputted. In this state,
each time [OPTION]
each time [OPTION]
key is pressed, AVLS ON/OFF switch is
performed.
EL display
START
5. Press the [BACK]
key, return to minor item selection screen.
5-2-6. SOUND EQ check
“100 Hz/250 Hz/630 Hz/1.6 kHz/4 kHz/10 kHz –20 dBs L-ch/R-
ch VOLUME: 30” audio signal is outputted.
ch VOLUME: 30” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the
2. Press the
[ ]
B
key to display major item, and press the [ ]
v
/ [ ]
V
key to select the “AUDIO”.
EL display
AUDIO
3. Press the
[ ]
B
key to display minor item, and press the [ ]
v
/ [ ]
V
key to select the “EQ 1”.
EL display
EQ 1
4. Press the [ ]
u
key, “START” is displayed and “100 Hz –20
dBs L-ch/R-ch VOLUME: 30” audio signal is outputted. In
this state, each time [OPTION] key is pressed, EQ LEVEL MAX/
MIN/OFF switch is performed.
this state, each time [OPTION] key is pressed, EQ LEVEL MAX/
MIN/OFF switch is performed.
EL display
START
5. Press the [BACK]
key, return to minor item selection screen.
6. Press the [ ]
v
/ [ ]
V
key to select the “EQ 2”.
EL display
EQ 2
7. Press the [ ]
u
key, “START” is displayed and “250 Hz –20
dBs L-ch/R-ch VOLUME: 30” audio signal is outputted. In
this state, each time [OPTION] key is pressed, EQ LEVEL MAX/
MIN/OFF switch is performed.
this state, each time [OPTION] key is pressed, EQ LEVEL MAX/
MIN/OFF switch is performed.
EL display
START
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