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NW-A25/A25HN/A26HN/A27HN
35
4-12-2. Microphone gain (R-ch) adjustment (GAIN-R)
This mode can be adjust the microphone gain (R-ch).
This mode can be adjust the microphone gain (R-ch).
Checking method:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “1. SETTING THE TEST MODE” on page 23)
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.
(Displayed values in the following fi gure are example)
NC GAIN-Rch
27
MODE
0
CVOL
f4 a6
f4 a6
Screen display
Microphone gain
NC mode
Noise Cancellation volume
(displayed for NC mode 0/1/2 only)
(displayed for NC mode 0/1/2 only)
5. In this state, each time the [
b
]/[
B
] keys are pressed, micro-
phone gain (R-ch) is changed.
6. In this state, each time the [HOLD] switch is slide from ON
to OFF, the NC mode changes into “-1 (NC off)/0 (airplane)/1
(train)/2 (offi ce)”.
(train)/2 (offi ce)”.
7. When NC mode is in the state of “0”, “1” or “2”, [VOL +]/
[VOL –] keys is pressed, noise cancellation volume is changes.
8. Save the microphone gain by pressing the [
u
] key and return
to minor item.
If do not save it, press the [BACK] key, return to minor item.
4-12-3.
Noise canceling headphone detection
(NCHPCHK)
(NCHPCHK)
This mode can be check the detection of noise canceling head-
phone.
phone.
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.
1. Connect noise canceling headphone with the WALKMAN.
2. Enter the test mode.
(Refer to “1. SETTING THE TEST MODE” on page 23)
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.
Connected Noican HP
Screen display
6. Press the [BACK] key, return to minor item selection screen.
4-13. Shutdown
(SHUTDOWN)
Function that power supply of set can be turned off without ending
static test mode.
static test mode.
Procedure:
1. Enter the test mode.
1. Enter the test mode.
(Refer to “1. SETTING THE TEST MODE” on page 23)
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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