Read Sony NWZ-S754 / NWZ-S755 Service Manual online
NWZ-S754/S755
27
4-10-1. Microphone gain (L-ch) adjustment (GAIN-L)
Microphone gain (L-ch) is adjusted.
Microphone gain (L-ch) is adjusted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] keys to select the “NC”, and press the [
B
] key
to enter the minor item.
3. Press the [
v
]/[
V
] keys to select the “GAIN-L”.
4. Press the [
u
] key, microphone gain (L-ch) is displayed.
Screen display
NC GAIN-Lch
13
MODE
0
5. In this state, each time the [
b
]/[
B
] keys are pressed, micro-
phone gain (L-ch) is displayed.
6. In this state, each time the [HOLD] key is slided from ON to
OFF, the NC mode changes into “-1 (NC OFF)/0 (airplane)”.
7. Press the [BACK] key, return to minor item selection screen.
4-10-2. Microphone gain (R-ch) adjustment (GAIN-R)
Microphone gain (R-ch) is adjusted.
Microphone gain (R-ch) is adjusted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] keys to select the “NC”, and press the [
B
] key
to enter the minor item.
3. Press the [
v
]/[
V
] keys to select the “GAIN-R”.
4. Press the [
u
] key, microphone gain (R-ch) is displayed.
Screen display
NC GAIN-Rch
13
MODE
0
5. In this state, each time the [
b
]/[
B
] keys are pressed, micro-
phone gain (R-ch) is displayed.
6. In this state, each time the [HOLD] key is slided from ON to
OFF, the NC mode changes into “-1 (NC OFF)/0 (airplane)”.
7. Press the [BACK] key, return to minor item selection screen.
4-10-3. Noise canceling headphone detection (NCH-
PCHK)
The detection of noise canceling headphone is executed.
PCHK)
The detection of noise canceling headphone is executed.
Note: Noise canceling
headphone is
necessary to execute this mode.
Checking method:
1. Connect noise canceling headphone with the WALKMAN.
2. Enter the test mode.
3. Press the [
1. Connect noise canceling headphone with the WALKMAN.
2. Enter the test mode.
3. Press the [
v
]/[
V
] keys to select the “NC”, and press the [
B
] key
to enter the minor item.
4. Press the [
v
]/[
V
] keys to select the “NCHPCHK”.
5. Press the [
u
] key, the detection of noise canceling headphone
is executed.
Screen display
Connected Noican HP
6. Press the [BACK] key, return to minor item selection screen.
4-11. Shutdown (SHUTDOWN)
Function that power supply of set can be turned off without ending
static test mode.
Function that power supply of set can be turned off without ending
static test mode.
Procedure:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] keys to select the “SHUTDOWN”, and press
the [
B
] key to select the “SURE ?”.
3. Press the [
u
] key, turn the power off while having entered the
test mode.
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