NWZ-S543, NWZ-S544, NWZ-S545 - Sony Audio Service Manual (repair manual). Page 21

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NWZ-S543/S544/S545
21
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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