Sony NWZ-A826 Service Manual page 13

4-2-9. Sound pressure regulation level check
"1 kHz 0 dBs L-ch/R-ch VOLUME: 30" audio signal is output-
ted.
Checking method:
1. Enter the test mode.
2. Press the [ ]/[ ] key to select the "AUDIO", and press the [
v V
key to enter the minor item.
3. Press the [ ]/[ ] key to select the "SPCHK".
v V
4. Press the [ ] key, "1 kHz 0 dBs L-ch/R-ch VOLUME: 30"
u
audio signal is outputted.
liquid crystal display
AUDIO SPCHK
1kHz 0dBs L/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
AUDIO
VIDEO — LCD
OTHER
CLESTE
DAC
BLUETOOTH
SHUTDOWN
EXITTEST
4-3-1. LCD display check
Liquid crystal display is checked.
Checking method:
1. Enter the test mode.
2. Press the [ ]/[ ] key to select the "VIDEO", and press the [
v V
key to select the "LCD".
3. Press the [ ] key, all black is displayed on the liquid crystal
u
display.
4. In this state, each time the [OPTION] key is pressed, the screen
display changes in the following order.
All black (default) → Color bar (standard) → Color bar (bright-
ness minimum) → Color bar (brightness maxmum) → All red
→ All green → All blue → All white → Maximum drawing
size confi rmation → diagonal gradation (red) → diagonal gra-
dation (green) → diagonal gradation (blue) → diagonal grada-
tion (white)
Maximum drawing size confi rmation:
All blue (All sides are red) is displayed. Whether red in all
sides is seen is confi rmed.
NWZ-A826/A826K/A828/A828K/A829
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
B
MPTAPP MENU
POWER
AUDIO
VIDEO
OTHER
CLESTE
DAC
BLUETOOTH
SHUTDOWN
EXITTEST
4-4-1. Clock check
The movement of an internal clock is confi rmed.
Checking method:
1. Enter the test mode.
2. Press the [ ]/[ ] key to select the "OTHER", and press the [
v V
key to enter the minor item.
3. Press the [ ]/[ ] key to select the "CLOCK".
v V
4. Press the [ ] key, date and time are displayed.
u
liquid crystal display
OTHER CLOCK
XX, XX XX XXXX
##:##:##.######
START
XX, XX XX XXXX : Date
##:##:##.######
"START" changes into "OK" if the movement of an internal
clock is confi rmed.
5. Press the [BACK] key, return to minor item selection screen.
]
B
CLOCK
KEY
KETYNUM
FORMAT
DEST
SPSET
FWVER
NCAPCHK
: Time
]
B
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