Sony ICD-P520 Operating Instructions Manual page 46

Symptom
Recording level is unstable
(when recording music,
etc.).
"--Y--M--D" or "--:--" is
displayed.
"--Y--M--D" or "--:--" is
displayed on the REC
DATE display.
You cannot divide a
message.
You cannot record
messages up to the
maximum recording time.

GB
Remedy
This unit is designed to automatically adjust the recording level

when recording meetings, etc., and is not suitable for music
recording.
You have not set the clock (page 11).

The date and time of recording will not be displayed if you

recorded the message when the clock was not set.
You cannot divide a message in a folder which has 99

messages (page 32).
If you divide messages frequently, the unit may become

unable to divide a message.
You cannot divide a message in the first or the last 1 second of

a message.
If you record messages in a mixture of HQ, SP and LP modes,

the recordable time varies from the maximum HQ mode
recording time to the maximum LP mode recording time
(page 15).
No more recording can be made when 99 messages each have

been recorded in a folder.
Due to the limitation of the IC recording system, this unit

records in the minimum recording unit. If the length of each
message cannot be divided by the minimum recording unit,
the remaining recording time may decrease by more than the
total length of the messages.