DOWNLOAD Sony NWZ-E343 / NWZ-E344 / NWZ-E345 Service Manual ↓ Size: 1.28 MB | Pages: 28 in PDF or view online for FREE

Model
NWZ-E343 NWZ-E344 NWZ-E345
Pages
28
Size
1.28 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
nwz-e343-nwz-e344-nwz-e345.pdf
Date

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.
Checking method:
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.
Checking method:
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.
Checking method:
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.
 
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.
 
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.
Checking method:
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.
Checking method:
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.
Checking method:
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.
Checking method:
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.
Checking method:
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.
Checking method:
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.
Checking method:
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.
 
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.
Checking method:
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.
Checking method:
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
4-3-1.  LCD display check
Liquid crystal display is checked.
Checking method:
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 (white)
 
Maximum drawing size confi rmation:
 
All blue (All sides are red) is displayed. Whether red in all 
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
 
4-4-1. Clock check
The movement of an internal clock is confirmed.
Checking method:
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.
Note: Not used for the servicing.
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