Sony NWZ-S754 Service Manual page 26

NWZ-S754/S755
4-8-4. Direct recording format select (FORMAT)
Note: Not used for the servicing.
4-8-5. Built-in microphone check (MICCHK)
In this mode, the built-in microphone is checked.
Checking method:
1. Enter the test mode.
2. Press the [ ]/[ ] keys to select the "DIREC", and press the [
v V
key to enter the minor item.
3. Press the [ ]/[ ] keys to select the "MICCHK".
v V
4. Press the [ ] key, the
u built-in microphone check
this state, the sound that the built-in microphone perceived is
outputted from the headphone.
Screen display
MIC -> HP
[ VOL: 25 ]
5. Press the [BACK] key, return to minor item selection screen.
4-9. FM
Screen display
MPTAPP (X.XX.XX)
POWER
AUDIO
VIDEO
VIDEO OUT
OTHER
CLESTE
DAC
DIREC
FM — RCVCHK
NC
SHUTDOWN
EXITTEST
26
4-9-1. Reception output check (RCVCHK)
FM tuning checked.
Checking method:
1. Enter the test mode.
2. Press the [
key to select the "RCVCHK".
3. Press the [
]
B
is begun. In
4. In this state, each time the [
changes in the following order.
90.00 MHz (default) → 76.00 MHz → 95.75 MHz → 107.75
MHz → 87.50 MHz → 98.00 MHz → 108.00 MHz → 100.00
MHz
5. In this state, each time the [
light brightness is switched.
6. In this state, each time the [OPTION] key is pressed, color bar
is displayed.
7. In this state, slide the [HOLD] key from OFF to ON. Each time
the [ ]/[
B
8. Press the [BACK] key, return to minor item selection screen.
4-10. Noise canceller (NC)
MPTAPP (X.XX.XX)
POWER
VIDEO OUT
CLESTE
SHUTDOWN
EXITTEST
]/[ ] keys to select the "FM", and press the [
v V
] key, "90.00 MHz" is displayed.
u
Screen display
FM RCVCHK
90.00 MHz
[VOL : 30]
[RSSI : XX]
[Sense-H : XX]
[Sense-L : XX]
] key is pressed, frequency is
b
] key is pressed, the LCD back-
B
] keys are pressed, frequency changes in 0.05 MHz.
b
Screen display
AUDIO
VIDEO
OTHER
DAC
DIREC
FM
NC GAIN-L
GAIN-R
NCHPCHK
]
B