Sony NWZ-E343 / NWZ-E344 / NWZ-E345 Service Manual ▷ View online
NWZ-E343/E344/E345
17
4-1-3. Standby current check
This mode is used in case standby current is checked.
This mode is used in case standby current is checked.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “POWER”, and press the
[
B
] key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “DSVCHK”.
4. Press the [
u
] key, enter the state of the deep sleep.
5. Press the [BACK] key, release the state of the deep sleep, and
return to minor item selection screen.
4-1-4. Charge current check
This mode is used in case charge current is checked.
This mode is used in case charge current is checked.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “POWER”, and press the
[
B
] key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “CHGCHK”.
4. Press the [
u
] key, the change setting is displayed.
liquid crystal display
CHGCHK
AC
AC
5. In this state, each time the [OPTION] key is pressed, the port
setting for the charge is changed as shown in the table below.
Port control
Display
CHG_XCHGEN
CHG_PEN1
CHG_PEN2
AC
L
H
H
USB500
L
H
H
USB100
L
H
L
6. Press the [BACK] key, return to minor item selection screen.
4-1-5. Battery voltage detection check
This mode is used in case battery voltage is checked.
This mode is used in case battery voltage is checked.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “POWER”, and press the
[
B
] key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “BATTCHK”.
4. Press the [
u
] key, the battery voltage is displayed.
When the battery voltage cannot be confi rmed, “ERROR” is
displayed.
displayed.
liquid crystal display
BATTCHK
Battery Voltage
X.XXXV
START
X.XXXV: Battery voltage
5. Press the [BACK] key, return to minor item selection screen.
4-2. Audio
While playing the audio track, it’s in a repeat state. If [BACK] key
is pressed, it’s stopped.
Press the [VOL +] key to switch the HP/LINE/SP.
While playing the audio track, it’s in a repeat state. If [BACK] key
is pressed, it’s stopped.
Press the [VOL +] key to switch the HP/LINE/SP.
liquid crystal display
MPTAPP MENU
POWER
OUTPUT
AUDIO
SN
VIDEO
F1
OTHER
F2
DEVICE
SEPLR
REC
SEPRL
FM
MAXOUT
SHUTDN
NMLZR
EXIT
SPCHK
NWZ-E343/E344/E345
18
4-2-1. Output check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
“1 kHz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “OUTPUT”.
4. Press the [
u
] key, “1 kHz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
OUTPUT
1kHz 0dBs L/Rch
HPOUT [ VOL 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-2. S/N check
“Infinity Zero VOLUME: 30” audio signal is outputted.
“Infinity Zero VOLUME: 30” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “SN”.
4. Press the [
u
] key, “Infinity Zero VOLUME: 30” audio signal
is outputted.
liquid crystal display
SN
Infi nity Zero
HPOUT [ VOL 30 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-3. Frequency characteristic 1 check
“20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
“20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “F1”.
4. Press the [
u
] key, “20 Hz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
F1
20Hz 0dBs Lch/Rch
HPOUT [ VOL 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-4. Frequency characteristic 2 check
“20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
“20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “F2”.
4. Press the [
u
] key, “20 Hz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
F2
20kHz 0dBs Lch/Rch
HPOUT [ VOL 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
NWZ-E343/E344/E345
19
4-2-5. CH separation (L-ch) check
“1 kHz 0 dBs L-ch VOLUME: 25” audio signal is outputted.
“1 kHz 0 dBs L-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “SEPLR”.
4. Press the [
u
] key, “1 kHz 0 dBs L-ch VOLUME: 25” audio
signal is outputted.
liquid crystal display
SEPLR
1kHz 0dBs Lch
HPOUT [ VOL 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-6. S/N check
“1 kHz 0 dBs R-ch VOLUME: 25” audio signal is outputted.
“1 kHz 0 dBs R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “SEPRL”.
4. Press the [
u
] key, “1 kHz 0 dBs R-ch VOLUME: 25” audio
signal is outputted.
liquid crystal display
SEPRL
1kHz 0dBs Rch
HPOUT [ VOL 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-7. Maximum output check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” (Headphone output when
AVLS operates: “1 kHz 0 dBs L-ch/R-ch VOLUME: 13”) audio
signal is outputted.
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” (Headphone output when
AVLS operates: “1 kHz 0 dBs L-ch/R-ch VOLUME: 13”) audio
signal is outputted.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “MAXOUT”.
4. Press the [
u
] key, “1 kHz 0 dBs L-ch/R-ch VOLUME: 30”
(Headphone output when AVLS operates: “1 kHz 0 dBs L-
ch/R-ch VOLUME: 13”) audio signal is outputted.
ch/R-ch VOLUME: 13”) audio signal is outputted.
liquid crystal display
MAXOUT
1kHz 0dBs L/Rch
AVLS OFF
HPOUT [ VOL 30]
START
5. In this state, each time the [OPTION] key is pressed, AVLS on/
off switch is performed.
6. Press the [BACK] key, return to minor item selection screen.
4-2-8. Normalizer check
“1 kHz −24 dBs L-ch/R-ch VOLUME: 30” audio signal is output-
ted.
“1 kHz −24 dBs L-ch/R-ch VOLUME: 30” audio signal is output-
ted.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “NMLZR”.
4. Press the [
u
] key, “1 kHz −24 dBs L-ch/R-ch VOLUME: 30”
audio signal is outputted.
liquid crystal display
NMLZR
1kHz–24dBs Lch/Rch
HPOUT [ VOL 30]
START
5. Press the [BACK] key, return to minor item selection screen.
NWZ-E343/E344/E345
20
4-2-9. Sound pressure regulation level check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is outputted.
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “AUDIO”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “SPCHK”.
4. Press the [
u
] key, “1 kHz 0 dBs L-ch/R-ch VOLUME: 30”
audio signal is outputted.
liquid crystal display
SPCHK
1kHz 0dBs Lch/Rch
HPOUT [ VOL 30]
START
5. Press the [BACK] key, return to minor item selection screen.
4-3. Video
liquid crystal display
MPTAPP MENU
POWER LCD
AUDIO
VIDEO
OTHER
DEVICE
REC
FM
SHUTDOWN
EXITTEST
VIDEO
OTHER
DEVICE
REC
FM
SHUTDOWN
EXITTEST
4-3-1. LCD display check
Liquid crystal display is checked.
Liquid crystal display is checked.
Checking method:
1. Enter the test mode.
2. Press the [
1. Enter the test mode.
2. Press the [
v
]/[
V
] key to select the “VIDEO”, and press the [
B
]
key to select the “LCD”.
3. Press the [
u
] key, all black is displayed on the liquid crystal
display.
4. In this state, each time the [OPTION] key is pressed, the screen
display changes in the following order.
All black (default)
→ All red → All green → All blue → All
white
→ Color bar → Maximum drawing size confi rmation
→ diagonal gradation (red) → diagonal gradation (green) →
diagonal gradation (blue)
diagonal gradation (blue)
→ diagonal gradation (white)
Maximum drawing size confi rmation:
All blue (All sides are red) is displayed. Whether red in all
sides is seen is confi rmed.
sides is seen is confi rmed.
5. In this state, each time the [VOL –] key is pressed, LCD back
light brightness min/max/middle switch is performed.
6. Press the [BACK] key, return to minor item selection screen.
4-4. Other
liquid crystal display
MPTAPP MENU
POWER
CLOCK
AUDIO
KEYNUM
VIDEO
KEY
OTHER
FORMAT
DEVICE
DEST
REC
FWVER
FM
NCAPCHK
SHUTDOWN QSHUTDW
EXITTEST MODEL
EXITTEST MODEL
4-4-1. Clock check
The movement of an internal clock is confirmed.
The movement of an internal clock is confirmed.
Checking method:
1. Enter the test mode.
2. Press
1. Enter the test mode.
2. Press
the
[
v
]/[
V
] key to select the “OTHER”, and press the [
B
]
key to enter the minor item.
3. Press the [
v
]/[
V
] key to select the “CLOCK”.
4. Press the [
u
] key, date and time are displayed.
liquid crystal display
CLOCK
XXXX/XX/XX
##:##:##
RTC OK
XXXX/XX/XX
:
Date
##:##:##
:
Time
5. Press the [BACK] key, return to minor item selection screen.
4-4-2. Frequency check that presses key
The frequency to which the key is pressed is displayed.
The frequency to which the key is pressed is displayed.
Note: Not used for the servicing.
Click on the first or last page to see other NWZ-E343 / NWZ-E344 / NWZ-E345 service manuals if exist.