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NWZ-A844/A845/A846/A847
10
SECTION 3
TEST MODE
1. SETTING THE TEST MODE
Note: Perform the test mode in the state of 3.6 V or more in the battery
voltage.
Setting method:
1. Turn the power on.
2. Press the [BACK] key for more 1.5 seconds, the home menu is
1. Turn the power on.
2. Press the [BACK] key for more 1.5 seconds, the home menu is
displayed.
3. Slide the [HOLD] key from OFF to ON.
4. Press the key as following order.
4. Press the key as following order.
[
B
]
→ [
b
]
→ [VOL +] → [
B
]
→ [
b
]
→ [VOL –] →
[OPTION]
→ [OPTION] → [BACK] → [BACK]
5. The set reboots and the color bar is displayed on the liquid
crystal display.
6. Enter the test mode when any keys are pressed in the state of
step 5.
Note: The destination setting and sound pressure regulation setting cannot
be executed by this test mode.
2. RELEASING THE TEST MODE
1. Display the major item selection screen.
2. Press the [
1. Display the major item selection screen.
2. Press the [
v
]/[
V
] keys to select the “EXITTEST”, and press
the [
B
] key to select the “SURE ?”.
3. Press the [
u
] key, turn the power off and release the test
mode.
3. CONFIGURATION OF THE TEST MODE
[ ]
key
Major item
Major item switching:
[ ]/ [ ]
keys
[BACK]
key
Minor item
Finish
or
Result
Start
Automatic
u
[ ]
key
v
V
v
V
Minor item switching:
[ ]/ [ ]
keys
B
[ ]
key
b
4. OPERATION OF THE TEST MODE
4-1. Power (POWER)
4-1. Power (POWER)
Screen display
MPTAPP (X.XX.XX)
POWER
VCHK
AUDIO
ACHK
VIDEO
DSVCHK
VIDEO
OUT CHGCHK
OTHER
BATTCHK
CLESTE
FM
NC
SHUTDOWN
EXITTEST
FM
NC
SHUTDOWN
EXITTEST
4-1-1. Power supply voltage check (VCHK)
This mode is used in case power supply voltage in the state where
all power supply lines are starting is checked.
This mode is used in case power supply voltage in the state where
all power supply lines are starting is checked.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] keys to select the “POWER”, and press the
[
B
] key to enter the minor item.
3. Press the [
v
]/[
V
] keys to select the “VCHK”.
4. Press the [
u
] key, all power supply lines are started.
Screen display
POWER VCHK
START
In this state, the power supply voltage of each power supply
line can be confi rmed by measuring the voltage.
line can be confi rmed by measuring the voltage.
5. Press the [BACK] key, return to minor item selection screen.
4-1-2. Consumption current (audio playback) check
(ACHK)
This mode is used in case consumption current (audio playback)
is checked in the state where “1 kHz 0 dBs L-ch/R-ch VOLUME:
15” audio signal is outputted.
is checked in the state where “1 kHz 0 dBs L-ch/R-ch VOLUME:
15” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] keys to select the “POWER”, and press the
[
B
] key to enter the minor item.
3. Press the [
v
]/[
V
] keys to select the “ACHK”.
4. Press
the
[
u
] key, “1 kHz 0 dBs L-ch/R-ch VOLUME: 15”
audio signal is outputted.
Screen display
POWER ACHK
1kHz 0dBs L/Rch
HPOUT [ VOL: 15 ]
START
5. In this state, each time the [
B
] key is pressed, LCD back light
on/off switch is performed.
6. Press the [BACK] key, return to minor item selection screen.
Note 1: Information on the test mode must correspond in enough
security. When the leakage has been revealed by any
chance, the source of information is specifi ed.
chance, the source of information is specifi ed.
Note 2: Execute “EXITTEST” when you release the test mode.
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