Sony PlayStationPortable Go Instruction Manual page 44

 When headphones or a video output cable is connected, no
sound is output from the PSP
A Bluetooth device may be connected and set to output

®
audio. If you want audio to be output from the system
speakers or wired headphones, press the sound button on
the top of the system for more than five seconds.
The volume does not turn up.
If (Sound Settings) [AVLS] is set to [On], the

maximum volume level is restricted.
 When video is set to output to a TV, use the TV's volume
controls to adjust the volume. The volume cannot be
changed using the PSP
The headphones do not emit sound or the sound contains
noise.
 Check that the headphones are fully inserted.
The PSP system's internal microphone does not pick up
™
sound.
When a headset (sold separately) is connected, the PSP

system receives sound through the headset's microphone.
The internal microphone is not used.

Before requesting service
system speakers.
™
system's volume buttons.
™
Memory Stick Micro
The Memory Stick Micro
 Set the Memory Stick Micro
when inserting (
Check that media of a type that can be used with this model

of the PSP
™
media"(
The system does not recognise the Memory Stick Micro
media.
If Memory Stick Micro

may not be recognised by the PSP
copy any data you want to keep on the PC, and then go to
(System Settings) [Format Memory Stick
reformat the media.
Check that the Memory Stick Micro

inserted. Try taking out the Memory Stick Micro
and reinserting it.
The system can't save or load data.
™
There may be a problem with the Memory Stick Micro

media. Try using another Memory Stick Micro
available.
Video
Videos do not play.
 Some types of data may not be able to be played.
™
media cannot be inserted.
™
media in the proper direction
™
page 19).
system is inserted. For details, see "Compatible
page 55).
media is formatted using a PC, it
™
system. If this happens,
™
media is properly
™
™
] and
™
media
™
™
media, if
™