Sony NWZA816P - DIGITAL MEDIA PLAYER/MP3 PLAYER Service Manual page 16

NW-A805/A806/A808/NWZ-A815/A816/A818
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 / 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
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 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 confirmation
Maximum drawing size confirmation:
All blue (All sides are red) is displayed. Whether red in all
sides is seen is confirmed.
4. In this state, each time the [VOL ---] key is pressed, LCD back
light brightness min/max/middle switch is performed.
5. Press the [BACK] key, return to minor item selection screen.
16
4-4. Other
liquid crystal display
MPTAPP MENU
POWER
B
AUDIO
VIDEO
OTHER
SHUTDOWN
EXITTEST
4-4-1. Clock check
The movement of an internal clock is confirmed.
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
##:##:##.######
"START" changes into "OK" if the movement of an internal
clock is confirmed.
5. Press the [BACK] key, return to minor item selection screen.
B
CLOCK
KEY
FORMAT
DEST
SPSET
FWVER
NCAPCHK
: Date
: Time
B