Sony PSP Instruction Manual page 29

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The screen suddenly turns dark.
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If (Power Save Settings)
has been set, the LCD screen's backlight will
automatically turn off if the system is left inactive for
the set amount of time.
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If (Power Save Settings) [Auto Sleep] has been
set, the system will automatically enter sleep mode if
left inactive for the set amount of time.
Pixels that are not lit or are continuously lit on the screen
do not disappear.
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LCD screens are made with highly precise
technology, but in some cases, pixels that are not lit
or are continuously lit may appear on the screen. This
is not a system malfunction. For details, see
"Precautions" ( page 6).
The colour of the screen does not look right.
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The background colour may be set to change
automatically at the beginning of each month. You
can adjust this setting under
There is no sound.
[Backlight Auto-Off]
The volume does not turn up.
The headphones do not emit sound or the sound
contains noise.
(Theme Settings).
The system does not recognise the Universal Media Disc.
Sound

Check that the volume on the system is not set to
zero. Try raising the volume by pressing the volume
+ button on the top of the system.
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When headphones are connected, no sound is output
from the PSP system speakers.
®
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If (Sound Settings)
maximum volume level is restricted.
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The ear friendly Headphones are specifically
designed to limit sound pressure level to a maximum
of 90dB.
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Check that the headphones are fully inserted.
Universal Media Disc
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Slide the POWER/HOLD switch right and hold it for
at least three seconds until the POWER indicator
turns off. Power will be completely cut off. After that,
turn the system back on.
[AVLS] is set to [On], the
Troubleshooting
GB
29